PIONEER PDP-60MXE20
Instrukcja Serwisowa

1

2

3

4

A

Trouble shooting of the A+6.5V output abnormal operation
This voltage Line is supplied to MAIN Assy from MAIN POWER SUPPLY Unit via DD Assy. Please check board to board connection first if A+6.5V is abnormal. e.g.) pin contact of connector, short between wire

From POWER SUPPLY unit

P12 CN304 (pin 1)

PV CN306 (pins 3 and 4)

To MAIN ASSY

B

From POWER SUPPLY unit

P8 CN302 (pin 1)

DD ASSY

Flowchart of Failure Analysis for The SLOT Power Supply
C
Failure analysis for the SLOT power supply Are 12V supplied to pins 1 and 2 of CN4001? Yes Are 16.5V supplied to pin 5 of CN4001? Yes Are 13.5V output from pin 3 of IC4003? Yes No No Failure in the DD Assy, POWER SUPPLY Unit or harness ADX3435 No Failure in the DD Assy or harness ADX3435

Failure in the IC4003

D

Are 3.3V supplied to pins 7 and 8 of CN4001? Yes Are 3.3V supplied to pin 11 of CN4001? Yes Failure analysis for the Each SLOT Input terminals

No

Failure in the DD Assy, POWER SUPPLY Unit or harness ADX3435

No

Failure in the DD Assy, POWER SUPPLY Unit or harness ADX3435

E

F

96
1 2

PDP-607CMX
3 4