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the 2 self tapping screws on the back panel.

7. Remove the top portion of the shield and set

it aside.

8. Unclip the wires leading to the power supply.
9. Lift the main board and remove the bottom

portion of the shield. Then rest the main
board in the built-in holders.

10. Align the notch in the board with the bottom

of the built-in holder to avoid damaging the
main board.

11. Before unplugging the flex cables, the laser

pickup must be shorted to prevent static
damage to the laser.

12. To access the laser pc board, remove the

safety shield covering the laser assembly.

13. Remove the 2 screws holding the disc clamp

and lift it off the laser assembly.

14. Cut the cable tie that holds the power supply

cable to the cross bracket.

15. Remove the 2 screws holding the cross bar

and lift the cross bar off the player.

16. Remove the 2 screws holding the disc tray in

the player.

17. Pull the tray out of the player.
18. Carefully solder the pad with a small tipped

soldering iron.

19. Remove the main board by gently unplugging

the flex cables and the power supply connec-
tor.

20. Lift the main board out of the holders.

21. Remove the 4 screws holding the power

supply.

22. Lift the power supply board out of the cabi-

net.

23. Remove the 3 screws holding the laser me-

chanical assembly.

24. Lift the assembly out of the cabinet.
25. Remove the component video output board by

retracting 2 screws on the back of the cabinet.

26. Remove the front panel by retract 4 screws, 1

on each side and 2 on the top.

27. Releasing the tabs and pull the panel away

from the cabinet.

28. The front panel circuit boards are remove by

retracting 6 screws,.and lifting the circuit
boards out of the front panel.

LASER DISASSEMBLY

1. Unplug the flex cable attached to the laser

slide assembly.

2. Remove the 4 screws and washers holding the

laser slide assembly in place.

3. Lift the laser slide assembly out and set it

aside.

4. Retract 2 screws at the rear of the mechanical

assembly.

5. Remove the lift assembly.
6. Remove the loading motor by first taking off

the loading belt.

2

3

Содержание NTDVT006BK

Страница 1: ...n Through Knowledge TOSHIBA DVD SERVICE GUIDE In Touch With Tomorrow TOSHIBA AMERICA CONSUMER PRODUCTS INC NTDVT006BK TOSHIBA AMERICA CONSUMER PRODUCTS INC NATIONAL SERVICE DIVISION NATIONALTRAINING DEPARTMENT 1420 BTOSHIBA DRIVE LEBANON TN 37087 ...

Страница 2: ...TOSHIBA DVD SERVICE GUIDE Copyright 1997 TOSHIBA AMERICA CONSUMER PRODUCTS INC NATIONAL SERVICE DIVISION NATIONAL TRAINING DEPARTMENT 1420 B TOSHIBA DRIVE LEBANON TN 37087 ...

Страница 3: ...fe of the laser and many other components DISASSEMBLY 1 Retract the 5 screws holding the cover in place 2 Lift off the cover 3 If a disc is stuck in the player it can be manu ally removed by pushing the eject level with a long screwdriver 4 After the tray pops out pull it completely open and remove the disc 5 To place the unit in the service position remove the shield covering the main board 6 Rem...

Страница 4: ...y solder the pad with a small tipped soldering iron 19 Remove the main board by gently unplugging the flex cables and the power supply connec tor 20 Lift the main board out of the holders 21 Remove the 4 screws holding the power supply 22 Lift the power supply board out of the cabi net 23 Remove the 3 screws holding the laser me chanical assembly 24 Lift the assembly out of the cabinet 25 Remove t...

Страница 5: ...Remove the 2 screws holding the feed motor 16 Unsolder the red and black wires and remove the feed motor LASER REASSEMBLY 1 Start the laser reassembly by reinstalling the feed motor Be sure the red wire is attached to the number 2 terminal and the black wire to the number 1 terminal 2 Push the feed motor gear onto the shaft of the feed motor 3 Check the distance between the ring magnet and the hal...

Страница 6: ...e front panel to the unit and replace the screws 3 Reinstall the component video output board 4 Replace the laser mechanical assembly 5 Replace the power supply 6 Place the main board in the service position and connect all of the flex cables 7 Remove the solder from the shorting pad 8 Install the disc clamp and the cross bar 9 Replace the safety shield 10 Slide the disc tray in and replace the lo...

Страница 7: ... come on unplug the power supply from the main board and jumper pins 2 and 3 on CN801 4 Recheck the dc voltages on pins 2 3 4 5 6 7 8 12 13 and 14 5 If the voltages are still improper or missing there is a problem with the power supply However if the voltages are normal the power supply is alright and there is most likely a problem on the main board or 1 of the other boards that is loading down th...

Страница 8: ...l RF signals at pins 16 and 17 of CN501 They should be about 0 5 volts peak to peak 3 Clean the objective lens with a cotton swab and alcohol if the signal is low 4 Recheck the RF signal and if it is still low replace the laser slide assembly 5 Another way to check the power of the laser is with a laser power meter A new laser should measure about 0 2 milliwatts 6 You can also visually check the l...

Страница 9: ...If the voltages are missing or improper unplug the flex cable and measure them unloaded 12 For problems associated with the feed motor or the spindle motor check the signals on connector CN502 13 Check the feed motor drive signals at pins 1 and 2 of CN502 They are easiest to see when the power is cycled on and the player is put in the times 8 scan speed 14 These signals can also be checked unloade...

Страница 10: ...02 SD3006 Only 1 Play a test disc with a straight color bar pattern 2 Place the player in pause and switch to the color difference outputs on the back of the player 3 Connect channel 1 of the scope to the lumi nance output on pin 1 of CN302 4 Connect channel 2 of the scope to the Cr signal output on pin 3 and ensure it is in sync with the luminance signal and the proper peak to peak voltage 5 Conn...

Страница 11: ... 4 GND 5 HO2N 6 HO1N 7 HO1P 8 HO2P 9 V 10 W 11 U 12 W 13 V 14 H 15 U 16 H 17 U 18 V 19 W CN302 1 Y R OUT 2 GND 3 Cr OUT 4 GND 5 CbOUT 6 GND 7 NT RGBX 8 GND CN602 1 DSP RESET 2 EVER 5V 3 GND 4 DSPSI 5 DSPSO 6 DSPCK 7 FSTBX 8 24V 9 F 10 F CN501 1 T 2 F 3 F 4 T 5 CDPD 6 GND 7 LD 8 MON 9 VOR 10 FO 11 EO 12 AO 13 BO 14 CO 15 DO 16 RFP 17 RFN 18 GND 19 VCC 20 VREF 21 LAYER CN503 1 LDMN 2 LDMP 3 TCLS 4 T...

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