[2]
STB 5V test point {P Board}
STB 5V test point {PA Board}
F-STB 14V & PFC Test Points
STB 14V Block.
To Rule Out 'P' Board
Use a 'Peak Hold Meter' for voltage reading.
SCREEN SHOTS AND DEFECTIVE BOARDS.
Defective DG Board.
Defective SC board
Defective D board
Defective D board
No output to SS board from D board
No output to SS board from D board
Contd:
STB 5V test point {P Board}
STB 5V test point {PA Board}
F-STB 14V & PFC Test Points
STB 14V Block.
To Rule Out 'P' Board
Use a 'Peak Hold Meter' for voltage reading.
- Disconnect the connector {P10} in the 'P' board; make sure the TV is unplgged before disconnecting.
- Only have 2 to 3 seconds for the voltage measuring at STB 14V, place the meter probe at Pin-1 of connector P-10 on the 'P' board.
- Plug the TV to AC line, while still holding the meter probe at Pin-1.
- If the 14V comes up, determine which of the 'PA' or 'DG' board is defective. If no 14V comes up, 'P' board is defective.
POWER LED BLINKS 10 TIMES
When the power LED blinks 10 times right after the TV has been plugged into AC, and the Power is OFF; P, PA, DG, H or the DT may be defective.
The DT, DG and H boards are part of an assembly. For troubleshooting, the DT board must be removed.
SCREEN SHOTS AND DEFECTIVE BOARDS.
Defective DG Board.
Defective D board
Defective D board
No output to SS board from D board
No output to SS board from D board
Contd:
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