Samsung Galaxy Tab 2 7.0 – Disassembling procedure

Samsung Galaxy Tab 2 7.0 – Disassembling procedure – How to remove the case – How to remove the battery – How to remove the motherboard Samsung Galaxy Tab 2 7.0

Remove the SD card from the SD card slot.
Make sure the device is completely powered down.

Use the prying tool to separate the front and rear panels by slipping the tool underneath the screen edge and sliding it around the entire device. Be sure to unclip all of the clips on the back panel or it will be difficult for you to pull it off and may damage the tablet.

Remove the battery Flex Cable from its socket by placing the pry tool under the wires and gently prying it out.

When you are placing in the new battery, it helps to connect the socket first or else it becomes difficult to properly align once the battery is in place.

Using the Phillips precision screw driver remove the six 4 mm screws holding the battery in place.

Once the battery is loose, remove as shown.

Using the Phillips #00 precisions screwdriver, remove the 12 4mm screws holding in the motherboard.

Release all flex cable connections at the bottom section of the motherboard.

Using the plastic pry tool release connections for both loudspeakers.
Once disconnected gently remove the loudspeakers from the device.

Release all flex cables on the right side of the device motherboard as shown.

Using the plastic pry tool, release the touch screen flex cable from its socket.
With the same tool release the LCD screen flex cable form its socket

Release all flex cables on the upper portion of the motherboard.

Using the plastic pry tool release the sensor flex cable from its socket.
With the same tool release the camera flex cable from its socket.
Release the front camera flex cable from its socket.
Release the side button's flex cable from its socket

Gently remove the motherboard from the device. Be sure no flex cables get caught on the motherboard while you are removing it or the flex cables may become damaged.

It is easier to begin lifting the motherboard from the top rather than the bottom.

Disassembley

HP Pavilion dm1 - HP Mini 311 – Disassembling procedure – How to remove the Keyboard – How to remove the WLAN – How to remove BIOS battery

HP Pavilion dm1 - HP Mini 311:  DISASSEMBLING PROCEDURE 

How to remove Battery

Before removing the battery, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
Remove the battery:
1. Turn the computer upside down on a flat surface, with the battery bay toward you.
2. Slide the battery release latches 1 to release the battery.
3. Remove the battery 2.

How to remove WLAN module

Before removing the WLAN module, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the WLAN module:

1. Position the computer with the front toward you.
2. Loosen the 2 Phillips PM2.0×6.0 captive screws 1 that secure the accessory compartment cover to the computer.
3. Lift the left side of the cover 2 to detach it from the computer, and remove the accessory compartment cover.

The accessory compartment cover is available using spare part number 580056-001.

4. Disconnect the WLAN antenna cables 1 from the terminals on the WLAN module. The black WLAN antenna cable is connected to the WLAN module “Main” terminal. The white WLAN antenna cable is connected to the WLAN module “Aux” terminal.

5. Remove the Phillips PM2.0×4.0 screw 2 that secures the WLAN module to the system board. (The WLAN module tilts up.)
6. Remove the WLAN module 3 by pulling it away from the slot at an angle.
WLAN modules are designed with a notch 4 to prevent incorrect insertion of the WLAN module into the WLAN module slot.

How to remove WWAN module

Before removing the WWAN module, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the accessory compartment cover
Remove the WWAN module:

1. Position the computer with the front toward you.
2. Disconnect the WWAN antenna cables 1 from the terminals on the WWAN module.
The red WWAN antenna cable is connected to the WWAN module “Main” terminal. The blue WWAN antenna cable is connected to the WWAN module “Aux” terminal.
3. Remove the 2 Phillips PM2.0×4.0 screws 2 that secure the WWAN module to the system board. (The WWAN module tilts up.)
4. Remove the WWAN module 3 by pulling it away from the slot at an angle. WWAN modules are designed with a notch 4 to prevent incorrect insertion of the WWAN module into the WWAN module slot.

How to remove RTC battery

Before removing the RTC battery, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the accessory compartment cover
Remove the RTC battery:
1. Position the computer with the front toward you.
2. Disconnect the RTC battery cable 1 from the system board.
3. Slide the RTC battery 2 directly back to remove it.

How to remove Hard drive

Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the accessory compartment cover
Remove the hard drive:
1. Position the computer with the front toward you.
2. Disconnect the hard drive connector 1.
3. Grasp the Mylar tab 2 in the hard drive bay, and then lift it up at an angle.

4. Remove the hard drive 3 from the hard drive bay.

How to remove Keyboard

Before removing the keyboard, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the accessory compartment cover
6. Remove the hard drive
Remove the keyboard:
1. Position the computer with the front toward you.
2. Remove the 4 Phillips PM2.0×7.0 screws that secure the keyboard to the computer.

3. Turn the computer display-side up, with the front toward you.

4. Open the computer as far as possible.
5. Lift the rear edge 1 and then the left edge 2 of the keyboard until it rests at an angle.
6. Slide the keyboard 3 back until it rests on the display.

7. Release the zero insertion force (ZIF) connector 1 to which the keyboard cable is attached, and then disconnect the keyboard cable 2 from the system board.

Apple Watch – How to replace the battery of apple watch

Apple Watch Battery:  HOW TO REPLACE THE BATTERY 

Slightly warm up the bottom cove of  apple using a blower

Because the gap between the screen and watch body is so thin, a sharp blade is required to separate the two. Read the following warnings carefully before proceeding. Always keep your fingers
completely clear of the knife. Be careful not to apply too much pressure, as this might cause the knife to slip and cut you, or damage the watch. Wear eye protection. The knife or glass may break, sending pieces flying.

Using a curved blade minimizes the chance of scratching the case or cracking the glass. Only pry with the curved section of the blade, and not the tip or flat section. Place the curved section of the blade in the gap between the glass and case on the lower edge of the watch face, and press firmly down into the gap. Be very careful to maintain complete control over the knife once the gap opens, if you're pressing too hard on the knife it may slip in and cut the battery. This should wedge the gap open and cause the glass to lift slightly up from the case. When the glass has lifted, gently rotate the knife down, opening the gap more by pushing the glass up.

Once you've opened the gap enough, insert the tip of an opening pick under the glass. Slide the pick along the bottom edge to separate adhesive holding the screen to the case. Be careful not to insert the opening pick too far. Only about 1/8" ( about 3 mm) is necessary, any deeper and you may damage cables.

Roll the opening pick up the side of the button side of the watch, gently pushing in to separate the adhesive and widening the gap as you go. Remember not to push the pick in too far it's easier to avoid this by rolling the pick, rather than dragging a tip along.

Work the pick around the top right corner, and roll it along the top edge of the screen.

Continue working the pick around the perimeter of the screen, rolling down along the left side to cut the last of the adhesive. Leave the pick in place to keep the adhesive from resealing the screen in place.

While holding the first pick in place, use a second to check that all of the adhesive is separated around the entire perimeter of the screen.

There are two cables connecting the screen to the inside of the watch, near the top left corner. Be careful when prying or you may damage these cables. Pry slightly up on the right side of the screen, to free it from any remaining adhesive. Pry up on the left to free it as well but do not attempt to remove the screen as it is still held in place by two cables.

If you can see the top layer of your Force Touch sensor among the display adhesive, it means the two layers of the sensor separated and you're going to need to replace or repair it.

The top layer of the sensor may be adhered to the back of the screen - push it down to separate it,

Lift the screen up and shift it to the left, minding the display data and digitizer cables.

Wedge a plastic opening tool between the right side of the battery and the case. Pry the battery up to separate it from the adhesive securing it to the system board.

Do not attempt to remove the battery as it is still connected.

Rotate the battery counterclockwise to expose its connector.

Hold the battery up and out of the way, to expose the battery cable connector. Use a plastic opening tool, prying against the bottom of the case to separate the battery cable connector from the watch's battery cable. Remove the battery from the watch.

HP EliteBook 840 G2 - HP EliteBook 740 G2 - HP ZBook 14: DISASSEMBLING PROCEDURE

HP EliteBook 840 G2 - HP EliteBook 740 G2 - HP ZBook 14  – Disassembling procedure – How to remove the battery – How to remove the keyboard – how to remove the solid state driver

How to remove the Service cover

Before removing the service cover, follow these steps:

1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
Remove the service cover:
1. Slide the service cover release latch (1).
2. Remove the optional security screw (2) (if it is being used).

3. Slide the release latch again (3) to release the service cover.
4. Slide the service cover toward the front of the computer (4).
5. Lift the service cover (5) and remove it.

How to remove Battery

Before removing the battery, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 57).
Remove the battery:
1. Slide the battery release latches (1) to the unlock position.
2. Left the rear edge of the battery (2) until it rests at an angle.
3. Remove the battery (3).

How to remove Hard drive

Before removing the hard drive, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 57).
5. Remove the battery (see Battery on page 59).
Remove the hard drive:
1. Loosen the 4 hard drive retention screws (1).
2. Release the hard drive (2) by sliding it forward.

3. Lift the hard drive (3) and remove it.

How to remove Solid-state drive

Before removing the solid-state drive, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 57).
5. Remove the battery (see Battery on page 59).
Remove the solid-state drive:

1. Remove the Phillips PM2.0×3.0 screw (1) that secures the solid-state drive to the system board. (The solid-state drive tilts up.)
2. Remove the solid-state drive (3) by pulling the drive away from the slot at an angle.

How to remove WWAN module

Before removing the WWAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover
5. Remove the battery
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.

2. Remove the Phillips PM2.0×3.0 screw (2) that secures the WWAN module to the system board. (The WWAN module tilts up.)

3. Remove the WWAN module (3) by pulling the module away from the slot at an angle.

How to remove WLAN module

Before removing the WLAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover
5. Remove the battery
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.

2. Remove the Phillips PM2.0×3.0 screws (2) that secure the WLAN module to the base enclosure. (The WLAN module tilts up.)

3. Remove the WLAN module (3) by pulling the module away from the slot at an angle.

How to remove Keyboard

Before removing the keyboard, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover
5. Remove the battery
Remove the keyboard:
1. Loosen the two Phillips captive screws that secure the keyboard to the computer.

2. Partially open the computer.
3. Rest and secure the computer on its left side.
4. Insert a keyboard release tool or similar thin tool into the keyboard release hole, and then press on the back of the keyboard until the keyboard disengages from the computer.

5. Position the computer right-side up with the front toward you.

6. Lift the rear edge of the keyboard upward.

7. Swing the keyboard (1) up and forward until it rests upside down on the palm rest.

8. Release the zero insertion force (ZIF) connector (2) to which the keyboard cable is attached, and then disconnect the keyboard cable from the system board.
9. Release the ZIF connector (3) to which the pointing stick cable is attached, and then disconnect the pointing stick cable from the system board.

10. Release the ZIF connector (4) to which the backlight cable is attached, and then disconnect the backlight cable from the system board.

11. Remove the keyboard (5)

Click on the picture to zoom

17MB18 – LCD TV main board – function details, service mode, alignments and more

Many companies are using this board for their LCD TVs.  It is used with 17", 15" and 20" TFT LCD TVs

The system is a 14” to 20” TFT LCD TV solution with UOCIII Versatile Signal Processor and PW1306 Video Image
Processor chip-set on 4-layer PCB. The TV will support PAL/SECAM B/G/D/K/I/L/L’.
The other general default features of the TV are as listed below:
• 1 Full Scart input (with SVHS support)
• 1 SVHS input through standard S-Video interface.
• 1 CVBS input through standard RCA jack
• 75 ohms antenna input
• D-Sub 15 PC Input
• GERMAN + NICAM STEREO
• <3W S/B Power Consumption from mains supply
• 2x3W Speaker Output Power @16 Ohm spks; HP Output, Stereo Audio line out
• Stereo Audio line in
• Equalizer
• IR Control (RC5)
• OSD;Menu Languages ENG, FRA, GER, ITA, SPA, POR, TUR, SWE, DEN, FIN, NOR, POL, HUN, CZE, BUL, ARA, PER, RUS (subject to change and be grouped)
• Teletext
• 2H/4H Comb Filter
• White balance settings (warm/normal/cool) for TV&PC
• Full AIR&CABLE band coverage
• Auto Shut down

17MB18 Main Board consists of two major blocks. The first block is analog front-end and this block is handled by UOCIII chip that is highly multifunctional. This IC does demodulation of Video & Audio from Tuner IF, CVBS, Audio,
RGB, SVHS input selection and processing. It has an audio processor that supports equalizer or tone control, volume control, AVL, surround effect etc and supplies amplifier, headphone and CVBS & audio line outputs. It handles video
processing such as colour standard detection and demodulation, picture alignment (brightness, contrast, colour etc.). The IC also does teletext decoding with 10 pages text memory. After video processing, the processed video is applied to
PW1306 chip in RGB format.
The TV Tuner is an asymmetrical IF output type and is PLL controlled. For multistandard reception, a switchable SAW filter is used as the sound filter and it is controlled by SAW_SW output from UOC. After the SAW filter block, IF signal
is applied to UOC IF inputs (VIFIN[1,2] and SIF[1,2]).
As UOCIII can handle all the audio processing, there is no need for additional audio processor solution on the board.  UOC supports three Audio outputs. These outputs are assigned to Headphone, Speaker and Scart Audio line outputs. The
board employs TDA7056A and TDA1308 to drive speaker and headphone outputs respectively. As another dedicated output for Audio Line out from jack is not possible in UOC, this line out signal is obtained by using I2S input DAC
CS4335. UOCIII I2S output is converted to anolog signal by DAC CS4335.

As the thickness of the TV set has a limit, a horizontal mounted tuner with longer connector is used in the product. The tuning is available through the digitally controlled I2C bus (PLL). Below you will find info on the Asymmetrical Tuner in use.
General description
The tuner meets a wide range of applications. It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L’, I and I’. The low IF output impedance drives a wide variety of SAW filters with sufficient suppression of triple transient.
Features
Small sized UHF/VHF tuners
Systems CCIR: B/G, H, L, L’, I and I’; OIRT: D/K
Digitally controlled (PLL) tuning via I2C-bus
Off-air channels, S-cable channels and Hyper band
ZS(AE) Aerial source impedance (unbalanced) 75 Ohm

SAW Filters
K3953M is an IF Filter for Video Applications. The package is SIP5K. Supported standards are B/G, D/K, I,L/L’.
K9656M is an IF Filter for Audio Applications. The package is SIP5K. Supported standards are B/G, D/K, I, L/L’.

Back End

The Back End section is handled by PW1306 chip. This IC has built in ADC’s for RGB and SOY support. The RGB input can handle standard interlaced RGB output from UOC, PC VGA RGB input. As only 1 set of ADC is present in PW1306 these sources should be multiplexed.  All the multiplexing operations are controlled by PW1306 via YUV_TV_SW (58) and VGA_TV_SW (57) signals.

The video output from PW1306 is a 48-bit digital RGB bus format and made available on two separate connectors with TTL control signals (i.e. HS, VS, CLK, etc.). This digital output is intended to interface to TTL compatible display
devices. As PW1306 does not have integrated LVDS transmitter, 24 bit (even part of RGB) video output and TTL control signals from PW1306 are also inputted to DS90C385 LVDS IC to produce single pixel LVDS output for LVDS
compatible LCDs.  Backlight control is also possible via PW1306 Porta7 pin (PWMOUT, PL176-10), that is a variable duty-cycle pulse generator output.

Power
Several linear regulators and switches are used to generate several separate analog and digital voltage supplies such as +5, +3.3, +1.8, etc.

UOCIII
The UOCIII series combines the functions of a Video Signal Processor (VSP) together with a FLASH embedded TEXT/Control/Graphics m-Controller (TCG m-Controller) and US Closed Caption decoder. In addition the following functions
can be added:
• Adaptive digital (4H/2H) PAL/NTSC combfilter
• Teletext decoder with 10 page text memory
• Multi-standard stereo decoder
• BTSC stereo decoder
• Digital sound processing circuit
• Digital video processing circuit
The UOC III series consists of the following 3 basic concepts
• Stereo versions. These versions contain the TV processor with a stereo audio selector, the TCG m-Controller, the multistandard stereo or BTSC decoder, the digital sound processing circuit and the digital video processing circuit. Options are the adaptive digital PAL/NTSC comb filter and a teletext decoder with 10 page text memory.
• AV stereo versions. These versions contain the TV processor with stereo audio selector and the TCG m-Controller. Options are the digital sound processing circuit, the digital video processing circuit, the adaptive digital PAL/NTSC comb filter and a teletext decoder with a 10 page text memory.
• Mono sound versions. These versions contain the TV processor with a selector for mono audio signals and the TCG mController. Options are the adaptive digital PAL/NTSC combfilter and a teletext decoder with 10 page text memory.

PW1306
The PW1306 Video Image Processor is a “system-on-a-chip ” that oversamples and processes RGB or YPbPr video from analog video decoders. The PW1306 integrates video processing, including deinterlacer and video enhancement filters with a triple ADC. Analog RGB or YPbPr in PC graphics, standard, or high-definition video can be displayed in either 4:3 or 16:9 formats.
• Supports analog video decoders with triple 8-bit Analog-to-Digital Converters (ADCs) up to 140 MSPS conversion rate
• Supports Sync-on-Green (SOG), Sync-on-Luma (SOY),and Composite sync inputs
• 1080i/720p/480p HDTV; 480i and 576i NTSC/PAL SDTV; PC graphics (up to SXGA)
• YPbPr/YCbCr/YUV-to-RGB Color Space Converter with programmable coefficients
• On-chip, bitmap-based, OSD controller with on-chip memory
• 24/30/48-bit RGB output with 135 MPixels/second maximum output rate.

M29W800AT

Low Voltage Single Supply Flash Memory to store PW1306 code.
ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Top Device Code, M29W800AT: D7h

DS90C385
The DS90C385 transmitter converts 28 bits of LVCMOS/ LVTTL data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 85 MHz, 24 bits of RGB data and 3 bits of LCD timing and control data (FPLINE, FPFRAME, DRDY) are transmitted at a rate of 595 Mbps per LVDS data channel. Using a 85 MHz clock, the data throughput is 297.5 Mbytes/sec.
• 20 to 85 MHz shift clock support
• Tx power consumption <130 mW (typ) @85MHz Grayscale
• Supports VGA, SVGA, XGA and Dual Pixel SXGA.
• Up to 2.38 Gbps throughput
• Up to 297.5 Megabytes/sec bandwidth
• PLL requires no external components
• Compatible with TIA/EIA-644 LVDS standard.

P15V330
The PI5V330 is a true bidirectional Quad 2-channel multiplexer/demultiplexer that is for both RGB and composite video
switching applications.
• 200 MHz bandwidth
• 3 Ohm on-resistance
• Switching at 10 ns
• 100 mA output current

74HC4052

The 74HC/HCT4052 are dual 4-channel analog multiplexers/demultiplexers with common select logic. Each multiplexer has four independent inputs/outputs (nY0 to nY3) and a common input/output (nZ). The common channel select logics include two digital select inputs (S0 and S1) and an active LOW enable input (E).
• Wide analog input voltage range: ± 5 V.
• Low “ON” resistance.

80 Ohm (typ.) at VCC - VEE = 4.5 V
70 Ohm (typ.) at VCC - VEE = 6.0 V
60 Ohm (typ.) at VCC - VEE = 9.0 V

TA1366FG
TA1366FG is an Analog Y Cb Cr picture signal improver in a 24-pin SSOP plastic package. TA1366FG functions are controlled via I2C bus.
• YCbCr 2inputs
• Through mode (Y bandwidth: 0dB@30MHz)
• Y block
• Sharpness
• SRT (LTI)
• Y Group Delay Correction (Shoot balance)
• Color Detail Enhancer (CDE) and Noise Detection
• Cb/Cr block
• Color SRT (CTI)
• Green Stretcher.

TDA7056A
The TDA7056A is a mono BTL output amplifier with DCvolume control. It is designed for use in TV and monitors.
Mute mode, No switch-on and off clicks,
Thermal protection,
Short-circuit proof,
ESD protected on all pins.

TDA1308

The TDA1308 is an integrated class AB stereo headphone driver contained in an SO8, DIP8 or a TSSOP8 plastic package.
• Wide temperature range
• No switch on/off clicks
• Low power consumption
• Short-circuit resistant

LM1117
The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. The output voltage can be adjusted..
• Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions
• Current Limiting and Thermal Protection
• Output Current 800mA
• Line Regulation 0.2% (Max)
• Load Regulation 0.4% (Max)
• Temperature Range
• LM1117 0°C to 125°C
• LM1117I -40°C to 125°C

24LC32
24LC32 is a 4K x 8 (32Kbit) Serial Electrically Erasable PROM capable of operation across a broad voltage range (2.5V to 6.0V).

24LC21
24LC21 is a 128 x 8 bit Electrically Erasable PROM. This device is designed for use in applications requiring storage and serial transmission of configuration and control information.

74LVC541
The 74LVC541A is an octal non-inverting buffer/line driver with 5 V tolerant inputs/outputs. The 3-state outputs are controlled by the output enable inputs OE1and OE2.
5 V tolerant inputs/outputs; for interfacing with 5 V logic
Wide supply voltage range from 2.7 to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels

SAA3010T
The SAA3010 is intended as a general purpose (RC-5) infrared remote control system for use where a low voltage supply and a large debounce time are expected. The device can generate 2048 different commands and utilizes a keyboard with a single pole switch for each key. The commands are arranged so that 32 systems can be addressed, each system containing 64 different commands. The circuit response to legal (one key pressed at a time) and illegal (more than one key pressed at a time) keyboard operation is specified in the section “Keyboard operation”.
Low voltage requirement
Biphase transmission technique
Single pin oscillator
Test mode facility

(I): Input,
(IPU): input with p-channel pull-up transistor,
(ODN): output with open drain n-channel transistor
(OD3): output 3-state

MC34167
The MC34167, MC33167 series are high performance fixed frequency power switching regulators that contain the primary functions required for dc–to–dc converters. This series was specifically designed to be incorporated in step–
down and voltage–inverting configurations with a minimum number of external components and can also be used cost effectively in step–up applications.  These devices consist of an internal temperature compensated reference, fixed frequency oscillator with on–chip timing components, latching pulse width modulator for single pulse metering, high gain error amplifier, and a high current output switch.
Protective features consist of cycle–by–cycle current limiting, under voltage lockout, and thermal shutdown. Also included is a low power standby mode that reduces power supply current to 36 mA.
• Output Switch Current in Excess of 5.0 A
• Fixed Frequency Oscillator (72 kHz) with On–Chip Timing
• Provides 5.05 V Output without External Resistor Divider
• Precision 2% Reference
• 0% to 95% Output Duty Cycle
• Cycle–by–Cycle Current Limiting
• Under voltage Lockout with Hysteresis
• Internal Thermal Shutdown
• Operation from 7.5 V to 40 V
• Standby Mode Reduces Power Supply Current to 36 mA
• Economical 5–Lead TO–220 Package with Two Optional Leadforms
• Also Available in Surface Mount D 2 PAK Package
• Moisture Sensitivity Level (MSL) Equals 1

TFMS5360
The TFMS5360 is a miniature receiver for infrared remote control systems.
• Photo detector and preamplifier in one.
• 36 KHZ
• Pin diode and preamp
• IR filter

UOCIII Service Menu
Turn on the TV.
Press “Menu” (M) and “4” ”7” “2” “5” buttons of RC respectively. The following menu will displayed on the screen.

GTV 3.2.1
000 EurAsia TVSub 05.01
00000000 00111100
01000000 01100100
11000101 01100100
00000000 01100100

Enter register index number directly from RC or use P/CH + and P/CH – buttons in order to go any register setting.
Press Volume + and Volume - buttons of RC in order to change the register value
Press “TV” button from RC in order to turn the UOC service menu off.

Tuner AGC Alignment
In this part, tuner AGC alignment procedure is described.
A TV pattern generator with RF output and volt-meter are needed for this alignment.
Test Set-up
“NICAM Stereo” and 60 dB PAL B/G RF signal from pattern generator will be applied.
Frequency must be set to 224.25 MHz.
• Turn on the TV and measure the AGC voltage from Tuner Pin1 without plugging in any RF input (Around 4.12V).
• Apply “NICAM Stereo” and 60 dB(1 mV) PAL B/G RF signal to the tuner input.
• Enter UOC service menu (as described above), and go to “AGC Take over” setting by pressing “1” “1” “8”.
• Measure AGC voltage from Tuner Pin1. By pressing Volume +/-; adjust AGC voltage so that the measured value at this step should be 0,5V less than the value measured at first step (Around 3.5V).
DCXO Alignment
If this alignment has not properly been done, some front end RF problems can be observed such as Nicam stereo / mono sound switching, low RF reception and color separation performance.
Test Set-up.  This alignment will be performed just after Tuner AGC Alignment. Apply “NICAM Stereo” and 60 dB PAL B/G RF signal from pattern generator. Frequency must be set to 224.25 MHz.
• Turn on the TV.
• Enter UOC service menu (as described above), and go to “DCXO Auto” setting.
• Set “DCXO Auto” value to “1” by pressing “Volume +”.
• TV will automatically align the DCXO (Digital Controlled Xtal Oscillator) value.
• Then TV automatically re-sets “DCXO Auto” value to “0”. This indicates that DCXO Alignment successfully completed.

PW1306 Service Menu
In order to work with PW service menu:
Press “Menu” (M) and “4” ”7” “2” “6” buttons of RC respectively.
Make the desired settings.
Press “Menu” (M) from RC to turn off the PW Service menu.

It is possible to move by using “UP”, “DOWN”, “LEFT” and “RIGHT” RC buttons in this menu structure.

UOC Horizontal Position
Press “DOWN” RC button at “Service Submenu 1” to highlight “UOC Hposition”
Set the proper value to fit the applied pattern to screen by using “LEFT” and ”RIGHT” buttons.

UOC Calibration
Apply 11 Vertical bar Grey-scale pattern with black on the left and white on the right side of the picture(as seen below) from CVBS input.
Press RC “AV” button, and switch to CVBS input and observe the pattern applied.
Enter to PW1306 service menu.
Press RC “DOWN” button at “Service Submenu 1” and highlight “UOC Calibration”.
Press RC “RIGHT” button to start calibration.

PW1306 PC Input ADC Calibration
Connect your TV with your PC and press RC “PC” button and observe the image.
Press “M” to display Menu and select “Options” by using right button of RC.
Press “Down” button of the RC and activate “auto adjustment”.
Press right button of the RC to perform “auto adjustment” and press “M” to exit from Menu.
Apply black on the left, white on the right(as seen below) XGA@60Hz (1024x768) pattern from PC.
Enter PW1306 service menu as described above.
Press RC “DOWN” button at “Service Submenu 1” and highlight “ADC Calibration”.
Press RC “RIGHT” button to start calibration.

NVM initialization

Press RC “RIGHT” button at “Service Submenu 1” and switch to “Service Submenu 2”
Press RC “DOWN” button and highlight “”Init NVM”

Press RC “RIGHT” button to set TV to initial settings. Next time TV is turned on, default settings will be loaded to TV

Initial APS

Press RC “RIGHT” button at “Service Submenu 1” and switch to “Service Submenu 2”
• Press RC “DOWN” button and highlight “”Initial APS”

Press RC “RIGHT” and “LEFT” buttons to set Initial APS to “on” or “off”.(When Initial APS is
to “on” TV will display “Initial APS” menu at first time it is turned ON.

Country
• Press RC “RIGHT” button at “Service Submenu 1” and switch to “Service Submenu 2”
• Press RC “RIGHT” button at “Service Submenu 2” and switch to “Service Submenu 3”Press RC “DOWN” button and highlight ”Country”
• Press RC “RIGHT” and “LEFT” buttons to set the desired country option.

Panel Type Change Shortcut
As 17MB18 software supports from 14” to 20” panel types, it is possible not to see anything on the fault panel type is 15” in the software. That s why, a hidden menu is needed to change supported panel from a hidden menu which is not shown on the screen.

In order to work with PW panel type selection shortcut service menu.

Press “Menu” (M) and “4” ”7” “2” “7” buttons of RC respectively. (Caution! No visual menu appear on the screen)

Press individual panel type selection digit to select the panel.

Turn off the TV from RC.

When the TV turns on again, it will come with new panel settings.

0 > 15” Samsung

1 > 20” CMO

2 > 17” LG

SETTINGS AND FACTORY DEFAULTS

Creating Master EEPROM

• Load the new SW version to the TV.
• Place empty EEPROM to IC101 position of the mainboard.
• Turn on the TV.SW will automatically assign the initial values to the EEPROM.
• Adjust the settings of Service Menu and User Menu.
• This EEPROM can be used as Master EEPROM.

Creating Mass Production EEPROM
• The Master EEPROM prepared like above is copied and multiplied to use in mass production.
• The copy EEPROM is placed on IC 101 of 17MB18. (When TV is turned on the software will realise that EEPROM is not empty, so SW will not change the values in the EEPROM.)

Brightness and contrast values will be left unchanged after the UOC Calibration.
xx Tint value is determined automatically by software and is active in only NTSC channels. So there is no need to adjust any value in this section.

HP Spectre x2 – Disassembling procedure – How to remove the Display panel – How to remove the battery – How to remove SSD

HP Spectre x2:  DISASSEMBLING PROCEDURE 

Display panel assembly

Before disassembling the slate, follow these steps:
1. Turn off the slate. If you are unsure whether the slate is off or in Hibernation, turn the slate on, and then shut it down through the operating system.
2. Disconnect the power from the slate by unplugging the power cord from the slate.
3. Disconnect all external devices from the slate.
Remove the display panel assembly:

1. Rest the slate on its top edge, with the POGO pin docking connector facing up.
2. Detach the POGO pin bezel  from the display panel assembly. (The POGO pin bezel is attached to the display panel assembly with double-sided adhesive.)
The POGO pin bezel is available using spare part number 830346-001.

3. Remove the four Phillips M1.5×2.7 screws  that secure the display panel assembly to the back cover.

4. Place the slate on a flat surface with the display panel facing up and the power button toward you.

5. Insert a case utility tool  or similar plastic, flat-edged tool between the back cover and the display panel assembly.
6. Release the display panel assembly front edge  from the back cover until it rests at an angle.
7. Release the display panel assembly right edge  from the back cover until it rests at an angle.

8. Disconnect the battery cable from the system board.

9. Release the adhesive strip  that secures the display panel cable to the display panel assembly.

10. Disconnect the display panel cable  from the display panel assembly.
11. Release the two zero insertion force (ZIF) connectors  to which the two TouchScreen cables are attached, and then disconnect the TouchScreen cables from the system board.

12. Remove the display panel assembly 

How to remove Battery

Before removing the battery, follow these steps:
1. Turn off the slate. If you are unsure whether the slate is off or in Hibernation, turn the slate on, and then shut it down through the operating system.
2. Disconnect the power from the slate by unplugging the power cord from the slate.
3. Disconnect all external devices from the slate.
4. Remove the display panel assembly
Remove the battery:
1. Remove the six Phillips M2.0×3.5 screws  that secure the battery to the back cover.

2. Remove the battery 

How to remove Solid-state drive

Before removing the solid-state drive, follow these steps:
1. Turn off the slate. If you are unsure whether the slate is off or in Hibernation, turn the slate on, and then shut it down through the operating system.
2. Disconnect the power from the slate by unplugging the power cord from the slate.
3. Disconnect all external devices from the slate.
4. Remove the display panel assembly
Remove the solid-state drive:
1. Remove the Phillips PM2.0×2.5 screw  that secures the solid-state drive to the slate. (The solid-state drive tilts up.)

2. Remove the solid-state drive  by pulling the drive away from the slot at an angle.

BIOS version

To decide whether you need to update Setup Utility (BIOS), first determine the BIOS version on your computer.
To reveal the BIOS version information (also known as ROM date and System BIOS):
1. Type support in the taskbar search box, and then select the HP Support Assistant app.
‒ or –
Click the question mark icon in the taskbar.
2. Select My PC, and then select Specifications.
‒ or –
Use Setup Utility (BIOS).
To use Setup Utility (BIOS):
1. Start Setup Utility (BIOS)
2. Select Main, select System Information, and then make note of the BIOS version.
3. Select Exit, select No, and then follow the on-screen instructions.Hardware Diagnostics

To start HP PC Hardware Diagnostics UEFI:
1. Start BIOS:
Computers or slates with keyboards:
Turn on or restart the computer, quickly press esc.
Slates without keyboards:
Turn on or restart the slate, and then quickly hold down the volume down button.
‒ or –
Turn on or restart the slate, and then quickly hold down the Windows button.
2. Press or tap f2.
The BIOS searches three places for the diagnostic tools, in the following order:
a. Connected USB drive.

b. Hard drive
c. BIOS
3. When the diagnostic tool opens, select the type of diagnostic test you want to run, and then follow the on-screen instructions. On a slate, press the volume down button to stop a diagnostic test.

Apple MacBook Air 11 – How to disassemble Apple Macbook air 11 – How to replace the battery

Apple MacBook Air 11

Shut down and close your computer. Lay it on a soft surface top-side down. Remove the following ten screws: Two 8 mm 5-point Pentalobe screwsEight 2.5 mm 5-point Pentalobe screws
The special screwdriver needed to remove the 5-point Pentalobe screws

Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air..

In this step you will disconnect the battery to help avoid shorting out any components during service.

Use the flat end of a spudger to pry both short sides of the battery connector upward to disconnect it from its socket on the logic board.
Bend the battery cable slightly away from the logic board so the connector will not accidentally bend back and make contact with its socket.

Remove the following five screws securing the battery to the upper case:

Two 5.2 mm T5 Torx screws

 One 6 mm T5 Torx screw
Two 2.6 mm T5 Torx screws

When handling the battery, avoid squeezing or touching the six exposed lithium polymer cells. Lift the battery from its edge nearest the logic board and remove it from the upper case.

Blackberry Bold 9650 – Disassembling procedure – How to remove the case – How to remove the battery – How to remove the trackpad

Blackberry Bold 9650:  DISASSEMBLING PROCEDURE 

Turn the device upside down. Using your finger, slide the silver cover release button towards the top of the device. Lift and remove the back cover.

Using your fingernails, lift the sides of the battery. Remove the battery.

Orient the device so the screen is facing the ground. Using your finger, gently lift the top of the SIM card.

Gently pull out the SIM card. The card will break in half if you apply too much force when pulling out the card.

Using a T6 Torx Screwdriver, remove the four torx screws located on the bottom half of the device.

Orient the device so that the screen is facing you. Using a spudger, remove the ear piece cover.

Using a T6 Torx Screwdriver, remove the two torx screws located in the top corners of the device.

Remove the back chassis by gently pulling the chassis back and forth.

The headphone jack can break if the chassis is pulled too forcefully.

Mother Board

Orient the device so the screen is facing the ground and the top of phone is facing you. Using a pair of tweezers, lift and remove the following: The two round connectors on the top of the mother board.
The round connectors are hooked into the mother board.
The flat connector in the lower corner of the mother board.

Using your fingers, carefully lift and remove the mother board. The connectors underneath the mother board are delicate and easily damaged.

Using a pair of tweezers, remove the three ribbon connectors. The ribbon cable connectors are delicate and easily damaged.

Remove the mother board by lifting the board upward.

Using a pry tool, lift up on the four tabs located on the edges of the faceplate. Remove the faceplate by lifting the plate upward.

Trackpad

Using a plastic pry tool, lift and remove the three tabs securing the trackpad restrainer to the trackpad.

Flip the device over. The screen is facing upwards.
Remove the trackpad restrainer.

Slowly remove the trackpad by gently pulling the trackpad away from the device. The ribbon cable attaching the trackpad to the mother board can break if the trackpad is pulled too quickly and forcefully.

Apple iPod Shuffle – Disassembling procedure – How to remove the case – How to remove the Battery

Apple iPod Shuffle:  DISASSEMBLING PROCEDURE 

Before beginning, be sure your Shuffle is turned off as shown.

Use the edge of an iPod opening tool to pry the plastic cover off the headphone jack side of the Shuffle.

Remove the plastic cover and set it aside.

Remove the two Phillips screws from the headphone jack side of the Shuffle.

Use the edge of an iPod opening tool to remove the steel cover from the headphone jack side of the Shuffle.

Use the edge of an iPod opening tool to pry the plastic cover off the controls side of the Shuffle. Remove the plastic cover and set it aside.

Use a pair of tweezers to remove the hold and shuffle sliders from the Shuffle.

Remove the two Phillips screws on the controls side of the Shuffle.

Use the edge of an iPod opening tool to remove the steel plate from the controls side of the Shuffle.

Use the edge of an iPod opening tool to slightly pry the steel plate on the headphone jack side of the Shuffle away from the lip cut into the outer case.

Use your iPod opening tool to push the logic board assembly out of the outer case enough to grab the logic board by its edges. Pull the logic board assembly out of the outer case.

Use the edge of an iPod opening tool to peel the adhesive under the battery that secures it to the logic board.

Flip the battery upwards to reveal the solder pads soldered to the logic board. Before desoldering the battery, be sure to scrape the protective resin off both solder points.

Desolder the battery from the logic board by heating up the solder joint with a soldering iron and simultaneously using a pair of tweezers to pull the battery wire away from the logic board.Do not touch the + and - leads together.

Apple iPhone 6 – How to replace the display shield of Apple iPhine 6 Apple iPhone 6

Display shield replacement procedure

Power off your iPhone before beginning disassembly. Remove the two 3.6 mm Pentalobe screws next to the Lightning connector.

The next three steps demonstrate using the iSclack, a great tool for safely opening the iPhone 6 that we recommend for anyone doing more than one repair. If the plastic depth gauge is attached at the center of the iSclack, remove it now it's not needed for larger phones like the iPhone 6. Close the handle on the iSclack, opening the suction-cup jaws.

Place the bottom of your iPhone in between the suction cups. Position the iSclack's upper suction cup against the display, just above (but not covering) the home button.

Open the handles to close the jaws of the iSclack. Center the suction cups and press them

firmly onto the top and bottom of the iPhone.

Hold onto your iPhone securely and close the handle of the iSclack to separate the suction cups, pulling the front panel up from the rear case. The iSclack is designed to safely open your iPhone just enough to separate the pieces, but not enough to damage the display cables. Peel the two suction cups off your iPhone.

Front Panel Assembly

If you don't have an iSclack, use a single suction cup to lift the front panel: Press a suction cup onto the screen, just above the home button.

Be sure the cup is pressed securely onto the screen to get a tight seal.While holding the iPhone down with one hand, pull up on the suction cup to slightly separate the front panel assembly from the rear case. Take your time and apply firm, constant force. The display assembly is a much tighter fit than most devices.

Using a plastic opening tool, begin to gently pry the rear case down, away from the display assembly, while continuing to pull up with the suction cup.

There are several clips holding the front panel assembly to the rear case, so you may need to use a combination of the suction cup and plastic opening tool to free the front panel assembly.

Pull the plastic nub to release the vacuum seal on the suction cup.

Remove the suction cup from the display assembly.

Pull the home button end of the front panel assembly away from the rear case, using the top of the phone as a hinge.

Keep the front panel supported at a 90º angle in relation to the rear case until you remove it allowing it to fall flat will strain the display cables and their connections on the logic board.

Several clips along the top edge of the front panel form a partial hinge, allowing the front panel assembly to swing open like a book. During reassembly, align the clips just below the top edge of the rear case. Then, slide the front panel upward until its top edge is flush with that of the rear case.

Remove the following five Phillips screws securing the front panel assembly cable bracket:

Three 1.2 mm screws

One 1.7 mm screw

One 3.1 mm screw

Remove the front panel assembly cable bracket from the logic board.

In the next four steps, take care to pry up only on the cable connectors, and not on their sockets on the logic board.

Use the flat end of a spudger to disconnect the front-facing camera and sensor cable connector.

Use the flat end of a spudger to disconnect the home button cable connector.

Use the flat end of a spudger to disconnect the display data cable connector. When reassembling your phone, the display data cable may pop off its connector. This can result in white lines or a blank screen when powering your phone back on. If that happens, simply reconnect the cable and power cycle your phone. The best way to power cycle your phone is to disconnect and reconnect the battery connector.

Use the flat end of a spudger to disconnect the digitizer cable connector.

Remove the front panel assembly from the rear case.

Remove the two 1.9 mm Phillips #00 screws securing the home button bracket.

Remove the home button bracket from the front panel.

Use the point of a spudger to disconnect the home button cable connector by pushing it up and away from the home button.

Remove the following Phillips #00 screws securing the LCD shield plate to the front panel:

One 1.7 mm screw

Six 1.6 mm screws (three on each side)

Lift the front-facing camera end of the LCD shield plate up slightly. Do not attempt to remove the shield plate entirely, it is still attached to the front panel via home button cable.

Slide the point of a spudger behind the shield plate to gently lift the home button cable up off of the front panel.

Remove the LCD shield plate.

Peel the black backing tape away from the home button cable. You may need tweezers to start peeling, however the tape is brittle and it may be hard to complete the job with tweezers alone.

Carefully peel the home button cable up off of the adhesive holding it to the LCD shield plate.