Pioneer PDP-42A3HD Service Manual page 84

1
12. Remocon
Remocon switch push but the key does not function
A
Preliminary Checkpoints
Check the Solder state and pin of Connector JP10
Check the Solder state in LED Board.
Check the I2C between Micom and EEPROM.
Check the Flash Memory or SDRAM.
B
Check the IR Micom(Pin 76)
C
D
E
F
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84
1
2
Remocon is O.K. but
the Function does not
operate.
OK
Waveform 25
of IC SDA6001(U29)
OK
Check the Micom part
(IIC Comunication, other
Control line)
OK
When you power
switch off,
the set off
OK
Exchange the Digital Board
2
3
NG
and Power in LED Board
NG
NG
PDP-42A3HD
3
4
Check Remocon output
Exchange the IC(U29)
Exchange the IC(UP1)
4
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