HTC Windows Phone 8X – Disassembling procedure

How to remove the battery – How to remove the power button- HTC Windows Phone 8X

HTC Windows Phone 8X: disassembling procedure 

LCD & Touch Screen Assembly

Begin the disassemble by removing the SIM card tray from the phone. Using the SIM card release tool or a paperclip, eject the tray from the phone.
To enter into the HTC Windows Phone 8X body, heat the outside perimeter of the display assembly with the heat gun/blow dryer. Use the plastic opening tool to pry the display away from the phone’s body.

Do not remove the display assembly completely because there are two ribbon cables attached to the motherboard.

The next step requires you to pry on the outside case of the phone. Maneuver the assembly to a spot where you will be able to proceed.

Look closely inside the perimeter of the phone, you will notice the plastic tabs that secure the internals to the phone's body.
Use the plastic opening tool to pry these tabs back. Allow the phones internals to pass the case backing until they can be removed from the HTC Windows Phone 8X.

You should now be able to see the internals on the case backing. With patience, very carefully separate the internals from the case backing. Now, you will begin removing the individual parts. The majority of the ribbon cables’ securing connections are FPC sockets that have a locking tab.

Flip the tab up 90 degrees and then release the first of two cables. Keep the display assembly attached while slipping the cable out of its socket.

The second ribbon cable is identical to the first. Flip the lock, release the cable, and slip it out of its socket.

Maneuver the two ribbon cables out of the small slots that allow them to pass onto the motherboard. You can now remove the display assembly from the HTC Windows Phone 8X.

Dock Port Assembly

Move your attention to the motherboard next. Start with the removal of the dock port connector and antenna plug using the spudger.

Continue with the spudger to pry the dock port assembly off of the adhesive securing it to the motherboard. You can now remove the dock port assembly from the HTC Windows Phone 8X.

Locate and remove the seven Phillips screws (#00) that hold the protective shield on the phone. The shield protects all the goodies inside. Remove the shield from the HTC phone.

Power Button

Locate the next FPC locking socket that you can flip up. Unlock and release the ribbon cable to remove the power button from the top of the HTC Windows Phone 8X.

Volume & Camera Buttons

Use the spudger to pry the volume & camera buttons’ connections. Remove the buttons on the side of the HTC phone.

Headphone Jack

The headphone jack is next to remove. It also has the FPC locking socket you can lift up from the motherboard. Unlock and release the cable.

The headphone jack is secured with a metal clip. Use the spudger to pry this clip up to release the headphone jack. You can now remove the headphone jack from the HTC Windows Phone 8X.

Unplug the upper antenna connector with the spudger by prying up on the plug to release it from the motherboard. Locate and remove the two Phillips screws (#00) that secure the battery connection to the motherboard. Once they are removed, pry up on the connection to disconnect it from the phone.

Locate and remove the three Phillips screws (#00) that secure the motherboard onto the frame assembly.

The vibrator motor is a single plug connector. It needs to be disconnected so you can remove the vibrator from the HTC Windows Phone 8X.

With the screws removed and the connections all disconnected, remove the motherboard from the HTC Windows Phone 8X frame assembly.

Battery

The battery is secured with a small amount of adhesive. Use the spudger to pry up the battery from the frame assembly. You can now remove the battery from the HTC Windows Phone 8X.

How to disassemble Apple iPad-2 – how to remove the LCD – How to remove the touch screen – How to remove the battery

How to remove LCD Screen

Before starting to disassemble the iPad 2, we need to bring to your attention to two areas where the need for extreme caution is necessary to prevent irreversible damage.
On the left side of the tablet, approximately 2 inches from the home button, is the touch screen digitizer ribbon cable. Also on the left side of the tablet, approximately 2 inches to the right of the home button, is the Wi-Fi antenna flex cable.
When you are separating the touch screen from the bezel with the plastic opening tool, below in Step Three, make sure to avoid using excessive force on these two parts of the tablet.

Using the heat gun or blow dryer, begin to heat the outer edges of the tablet to soften the adhesive securing the front panel of the unit (1 to 2 minutes should suffice).

Using the plastic opening tool, create separation between the trim bezel and the touch screen digitizer.

Slide the opening tool around the display assembly to release the adhesive around the entire tablet.
The support of the heat gun or blow dryer might be needed in order to soften the adhesive while working all the way around the touch screen.

Use the triangle opening tools while working around the perimeter of the iPad 2 to hold apart the adhesive and keep separation.

When the adhesive has been released all the way around the tablet, rotate the touch screen away from the base. This will be similar to opening a book. Make sure you are mindful of th ribbon cable in the bottom left corner. Next, locate and remove the four Phillips screws (#00) that secure the LCD to the base.

Lift and rotate the LCD screen out of the base the same way as you did the touch screen. You can then rest the LCD screen on top of the touch screen/front panel.

The LCD screen ribbon cable is held in with a FPC style connector which has a locking tab. Make sure you unlock this tab before trying to unplug the ribbon cable.

The tab on the opposite side of where the cable is inserted is the lock. Use the spudger to flip the tab up 90 degrees.
Once the locking tab is flipped up, release the ribbon cable from its connector and then remove the LCD screen from the iPad 2.

 How to remove Touch Screen

The touch screen ribbon cable is also held in to the phone with FPC style connectors. Again, these have locking tabs that need to be unlocked before trying to unplug the ribbon cables.

The tabs on the opposite side of where the cables are inserted are the locks. Use the spudger to flip the tabs 90 degrees.
Once the locking tabs are flipped up, release the ribbon cables from their connectors. You can now remove the touch screen from the iPad 2.

How to remove Dock Port Assembly

Use the flat side of the spudger to gently pry up and release the dock port’s single plug style connector.

Locate and remove the two Phillips screws (#00) that secure the dock port connector into the tablet, this will allow you to remove the dock port from the iPad 2.

How to remove Front-Facing Camera

The connection for the headphone jack assembly is a locking style connector that needs to be released before the ribbon cable can be removed. Use the spudger to flip the lock and remove the ribbon cable from the socket.

Locate and remove the two Phillips screws (#00) that secure the headphone jack to the body of the iPad 2.

Slide the spudger under the front-facing camera to pry up and remove it from the housing of the iPad. To disconnect the cable for the front-facing camera from the tablet, use the spudger to pry it up and out of its socket and then remove the front-facing camera from the iPad 2.

How to remove Headphone Jack Assembly Wi-Fi Antenna Flex Cable

Using tweezers or the spudger, maneuver the headphone jack assembly up and out of the iPad 2.
Then peel up the microphone that is the last portion of the cable.
Locate and remove the four Phillips screws (#00) that secure the Wi-Fi antenna flex cable to the iPad 2.

The interconnection cable for the power & volume button assembly has a locking connection. Release the locking lever and then remove the connection from the socket.

The speaker assembly has a plug style connection. Use the flat end of the spudger to pry up and remove the speaker assembly

Locate and remove the five Phillips screws (#00) that secure the motherboard to the body of the iPad 2.

Use the flat end of the spudger to lift, pry up and remove the motherboard from the body of the iPad 2.

The final connection for the Wi-Fi antenna flex cable is on the bottom side of the motherboard. Use the tweezers or the spudger to remove this plug and then remove the WiFi antenna from the iPad 2.

How to remove Battery

The battery is secured to the body of the tablet with a small amount of adhesive on both sides of its three pieces.

Use the metal spudger to pry the battery up and out of the body of the iPad 2.

YAMAHA RX-V363 - HTR-6130 – Firmware update – Confirmation of the firmware – Initialization – Self Diagnostics – Protection Function

YAMAHA RX-V363 - HTR-6130

Starting Self-diagnostic Function

Press the “STANDBY/ON” key while simultaneously pressing STRAIGHT and AUDIO SELECT keys.

Starting Self-diagnostic Function in the protection cancel mode
If the protection function works and causes hindrance to trouble diagnosis, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess current detect function will be disabled.)
Press the “STANDBY/ON” key while simultaneously pressing those two keys STRAIGHT and AUDIO SELECT keys . At this time, keep pressing those two keys for 3 seconds or longer.
In this mode, the [SLEEP] segment of the FL display of this unit flashes to indicate that the mode is self-diagnostic function mode with the protection functions disabled.

Canceling Self-diagnostic Function
1. Before canceling self-diagnostic function, execute setting for FACTORY PRESET of main menu No.13 (Memory initialization inhibited or Memory initialized).
# In order to keep the user memory stored, be sure to select PRESET INHIBITED (Memory initialization inhibited).
2. Turn off the power by pressing the “STANDBY/ON” key of this unit.
# Display provided when Self-diagnostic Function started
On the FL display of this unit, an opening message (including the protection history) appears for a few seconds followed by the self-diagnostic function menu display

When there is a history of protection function due to excess current

Cause: An excessive current flowed through the power amplifier.
Supplementary information:
As current of the power amplifier is detected, the abnormal channel can be identified by checking the current detect transistor.
Turning on the power without correcting the abnormality will cause the protection function to work immediately and the power supply will instantly be shut off.

Note:
# Applying the power to this unit without correcting the abnormality can be dangerous and cause additional circuit damage. To avoid this, if “PRI” and “PRD” protection function has been activated 3 times continuously, the power will not turn on even when the “STANDBY/ON” key is pressed. In order to turn on the power again, disconnect the power cable of this unit from the AC outlet once and then reconnect it again.
# The output transistors in each amplifier channel should be checked for damage before applying power to this unit.
# Amplifier current should be monitored by measuring DC voltage across the emitter resistors for each channel.

When there is a history of protection function due to abnormal DC output

Cause: DC output of the power amplifier is abnormal.
Supplementary information:
The protection function worked due to a DC voltage appearing at the speaker terminal. A cause could be a defect in the amplifier.
If the power is turned on with the abnormality unsolved, the protection function works in about 3 seconds to turn off the power.

When there is a history of protection function due to abnormal voltage in the power supply section

Cause: The voltage in the power supply section is abnormal.
Supplementary information:
The protection function worked due to a defect or overload in the power supply.
If the power is turned on with the abnormality unsolved, the protection function works in about 1 second to turn off the power.

When there is a history of protection function due to excessive heat sink temperature

Cause: The temperature of the heat sink is excessive.
Supplementary information:
The protection function worked due to the temperature limit being exceeded. Causes could be poor ventilation or a defect related to the thermal sensor.

If the power is turned on with the abnormality unsolved, the protection function works in about 1 second to turn off the power. For detection of each protection function, refer to main menu described later.

History of protection function
When the protection function has worked, its history is stored in memory with a backup. Even if no abnormality is noted while servicing the unit, an abnormality which has occurred previously can be defined as long as the backup data has been stored. The history of the protection function is cleared when self-diagnostic function is cancelled by selecting PRESET RESERVED (Memory initialized) of main menu No. 13 or when the backup data is erased.

Operation procedure of Main menu and Sub-menu
There are 14 menu items, each of having sub-menu items.
Main menu selection:
Select the menu using “>” (forward) and “<” (reverse) keys of PROGRAM.
Sub-menu selection:
Select the sub-menu using “SCENE 2” (forward) and “SCENE 1” (Reverse) keys.

Functions in Self-Diagnostic Function mode
In addition to the self-diagnostic function menu items, functions as listed below are available.
# Power on/off
# Master volume
# Muting
# Speakers A/B/OFF
# Input selection
# Audio select
# Tone control
# Functions related to the tuner and the set menu are not available.
Keys of this unit
Reverse Forward
Reverse Forward
Sub-menu selection
Main menu selection
# Initial settings used to start Self-Diagnostic Function
The following initial settings are used when starting self-diagnostic function.
When self-diagnostic function is canceled, these settings are restored to those before starting self-diagnostic function.
# Master volume: -20 dB
# Input: DVD (MULTI CHANNEL INPUT OFF)
# Effect level: 0 dB
# Main menu: 1. ANALOG BYPASS

UPDATING FIRMWARE

After replacing the following parts, be sure to write the latest firmware.
# DSP P.C.B.
# IC201 (DSP P.C.B.)

Required Tools
# DVD or CD player (with DIGITAL OUTPUT (OPTICAL or COAXIAL) jack)
# Optical cable (when OPTICAL jack is used)
# Digital audio pin cable (when COAXIAL jack is used)
# Firmware CD
# To make the firmware CD, download the latest firmware from the specified download source to PC.

Operation Procedures
1. Connect this unit and DVD/CD player to optical input

2. While simultaneously pressing the “STANDBY/ON” and “SPEAKERS A/B/OFF” keys of this unit, connect the power cable of this unit to the AC outlet.
The FIRMWARE UPDATE mode is activated and “SPDIF Upgrade” is displayed.

3. Connect the power cable of DVD/CD player to the AC outlet.
4. Press the “STANDBY/ON” key of the DVD/CD player.
5. Press the “EJECT” key of the DVD/CD player to open the disc tray.
6. Place the firmware CD in the disc tray and close the disc tray.
7. Press the “PLAY” key of the DVD/CD player. Then writing of the firmware is started.
8. When writing of the firmware is completed, “Upgrade OK”, “Please...” and “Turn off!!” are displayed repeatedly.

When the version of the firmware to be written is the same as the one existing in this unit, “Same Version”, “Please...” and “Turn off!!” are displayed repeatedly. (Upgrading is not necessary.)
If the display remains unchanged for more than 10 seconds after starting the firmware CD play procedure, perform the firmware CD play procedure again from the beginning.
If “FILE CORRUPTED” is displayed after “Address:XXXXXX”, make sure that the firmware CD is not corrupted and perform steps 1 to 8 of “Operation Procedures” again.
If “Upgrade Failed” is displayed, perform Steps 1 to 8 of “Operation Procedures” again.
9. Press the “STOP” key of the DVD/CD player.
10. Press the “EJECT” key of the DVD/CD player to open the disc tray.
11. Remove the firmware CD from the disc tray and close the disc tray.
12. Turn off the power of the DVD/CD player and disconnect the power cable from the AC outlet.
13. Turn off the power by pressing the “STANDBY/ON” key of this unit.

Confirmation of firmware version and checksum
To confirm that the firmware is updated successfully, check the firmware version and checksum value by using the self diagnostic function menu “14. ROM VER/SUM”.
For more information, refer to “SELF DIAGNOSTIC FUNCTION”.
# When the displayed firmware version and checksum are different from written firmware version and checksum, follow
the steps from 1 to 13 of “Operation Procedures” again.

Initializing of this unit
# After updating the firmware, be sure to initialize this unit.
1. Connect the power cable of this unit to the AC outlet.
2. Press the “STANDBY/ON” key while simultaneously pressing the “STRAIGHT” and “AUDIO SELECT” keys.

The self-diagnostic function is activated.
3. Select the main menu “13. FACTORY PRESET”.
4. Select the “PRESET RSRV”.

5. Turn off the power of this unit and disconnect the power cable from the AC outlet.