Elenberg TV 707 circuit diagram (schematic)-LC85F3264, LA76810, LA7542 and Philco PH55E51 LED TV power supply (SMPS) schematic

Elenberg TV707 Schematic and PWB layout

Schematic diagram

Philco PH55E51 SMPS BOARD schematic diagram

Sanyo LCD 47XF5 LCD TV-How to enter the service mode, default service mode values, schematic diagram

 

Service Menu

This set has an On-screen Service Menu System included in the CPU that allows remote operation for most of the service adjustments

On-screen Service Menu System

Quick operation is needed to enter Service Mode.

How to enter the Service Menu
1. Press and hold the MENU button on Side Controls.
2. Keep pressing the MENU button and press the MUTE button on the remote control, and the FACTORY MENU will be displayed.
3. Select SERVICE by pressing (Up) or (Dn) button and then press( +) or ( - ) button to enter SERVICE menu.

How to select the service item and adjust data

1) Select “DATA” line by pressing (Up) or (Dn) button.

2) Press (+) or (-)  button to adjust data

To exit service mode
Press BACK button or MENU button to exit service mode.

Note: The all adjusted data in service mode will be memorized into EEPROM automatically.

Initial data [Default data]

 

Setting the Initial data
This adjustment is controlled by the CPU (IC8000) through the IIC Bus Data Line in the chassis, and those adjustment data are memorized the memory IC (IC8002). Therefore, Main board or the memory IC (IC8002) is replaced, these data will be disappeared. Readjust should be made. Initial data is provided in the CPU ROM, when the memory IC (IC8002) is replaced with new one. CPU ROM data is loaded into the memory. Initial data is provided to operating the monitor basically. For operating the monitor quality performance, further adjustment is required following chassis electrical adjustment.

1. Receive good quality signal.
2. Enter the Service Mode.
3. Confirm data value to be the same as the Service Adjustment Data Table. If it is different, change to correct data
4. Exit the Service Mode.

White balance Adjustment

Picture Mode: STANDARD
Color Temperature: NORMAL
Aging Time: More than 10 minutes

1. Enter the FACTORY MENU.

2. Select WHITE BALANCE by pressing (Up) or (Dn)  button, and then pressing ( + ) or ( - ) button to enter it.

3. To adjust Red : Press 1 (data value up) and 4 (data value down).
To adjust Green : Press 2 (data value up) and 5 (data value down).
To adjust Blue : Press 3 (data value up) and 6 (data value down).

4. Decide one item in three items to a fixed value (For example, let R be fixed value as following picture.), select item of other 2 colors (Example, G or B as following picture), and adjust to produce a normal black and white picture in highlight areas.
(Note: At this time, Adjust the other 2 colors data less than fixed data.)

5. Exit the FACTORY MENU

After adjustment, confirm white balance again by normal picture.

Schematic diagrams

Main board

Power board

How to disassemble the mechanism of Samsung MAX-460V CD changer, schematic

 

Samsung MAX-460V 3 CD CHANGER VIDEO CD MINI COMPONENT

Cabinet-Top

1. Remove 11 screws holding the cabinet-top.
2. Lift the back of the cabinet-top and slide it to the rear to remove. (See arrow)

CD-MECHA, DOOR-CD

1. If power is connected :
- Turn power on
- Open the tray using the open/close key
- Remove the Door in the direction of arrow.

2. If power is not connected :
- Turn the gear clockwise using a screw driver as shown in Figure
- Pull the Tray in the direction of arrow and then remove the Door in the direction of arrow.

Cabinet-Rear and Main PCB

1. Remove 14 screws (5) and then lift the cabinet-rear (6) and slide it to rear to remove (see arrow).
2. Remove the Main-PCB & to rear.

Cabinet-Front and Cabinet-Bottom

Remove 5 screws 
2. Remove the cabinet-rear by pushing the "A" and "B" as shown.

CD Mechanism Main

1. Turn the Bracket-chuck (1) counter clockwise to remove.
2. Remove the Table-Chuck union (2)
3. Remove the Magnet-Chuck (3)
4. Remove the screw (4) and then lift the Gear-Tray(2) (5)
5. Remove the Belt-disc (6)
6. Remove the screw (7) and then lift the Gear-Pulley (8)
7. Lift the Gear-Tray(1) (9)
8. Remove 2 screws and then remove the Motor-DC (11)
9. Remove the Pulley-Motor (12)
10. Remove 1 screw (35) and then remove the PCB-SUB switch (13)
11. Remove the Switch-Micro (14) with using the soldering iron.
12. Remove the Connector-Wafer (15) with using the soldering iron.
13. Remove 2 screws (16) and then remove the Gear-Cam (17)
14. Remove the Belt-Disc - 18
15. Remove 1 screw 35 and then remove the PCB-SUB switch 19
16. Remove the Switch-Micro 20 and the Connector-Header 21.
17. Remove the Pulley-Motor 24
18. Remove 1 screw 25 and then lift the Gear-Pulley 26
19. Remove 1 screw 27 and then lift the Gear-UD(2) 28
20. Lift the Gear-UD (1) 29
21. Remove 1 screw and then remove the Clamp-Wire 53

CD-PCB

1. Remove 2 screws 1
2. Remove the PCB 2 with using the soldering iron.
3. Remove the Hook 3.
4. Remove four Shaft-CD4 and then remove four Rubber-CD 5
5. Remove the CD-Deck 6 and Lever-Lift 7 is removed automatically.
6. Remove the Shaft 8.

CD Mechanism Tray

1. Remove 1 screw 1 and then remove the Roulette 2
2. Remove 6 Cushions 23 .
3. Remove 2 Washers 3
4. Remove the Gear-Roulette (2) $ and then remove the Gear-Roulette (1) 5.
5. Remove 3 screws 6 and then remove three Cushion-Bracket 7.
6. Remove 3 Cushion-Motors 8.
7. Remove 2 screws 9 and then remove the Motor-DC 11.
8. Remove the Bracket-Motor 10
9. Remove the Shaft-Motors (1) 11
10. Remove the Gear-Worm 12 from the Motor-DC.
11. Remove the PCB-SUB Motor(R) 13 with using the soldering iron.
12. Remove the A/S, C/wire 14 with a soldering iron.
13. Remove 1 screw 15 and then remove the connector-header 16, Sensor-Roulette 17 and the A/S, C/wire (FL) 18 with using a soldering iron.
14. Remove the PCB-SUB sensor(R) 19

CD Deck

1. Remove the Shaft 1
2. Lift the P/U 2
Note : Take extreme care not to touch the surface of lens.
3. Lift the Centre-ring 3
4. Remove the Spring-T/Table 4
5. Remove the Turn-Table (M) 5 .
6. Remove 2 screw 8 and then remove the Spindle-Motor 7
7. Remove the Cover-Gear 8 by pushing the hook.
8. Remove the Gear (c) 9 by pushing the hook.
9. Lift the Gear (b) 10
10. Remove the Gear (a) 11
11. Remove 2 screws 12 and then remove the Feed-Motor 13
12. Remove the Chassis-Deck (M) 14

Schematic [full]

AOC L42H961 – 715G3351 SMPS power board schematic

AOC 42 inch  LCD TV power board schematic