Pioneer PDP-42A3HD Service Manual page 124

1
Cause/Countermeasure : If short-circuited, disconnect connector between High Voltage Board and Scan Relay Board and,
4 Short between NEGA-POSI on High Voltage Board
5 Short between NEGA-POSI on Scan Relay Board (U)
A
6 Short between NEGA-POSI on Scan Relay Board (D)
B
C
D
E
F
124
1
2
]Exchange High Voltage Board.
]Exchange Scan Relay Board (U).
]Exchange Scan Relay Board (D).
OK: More than kΩ
NG: Short
PDP-42A3HD
2
3
High Voltage
Scan Relay Board (U)
Board
High Voltage
Scan Relay Board (D)
Board
Checkpoint
NEGA-POSI
3
4
NEGA
POSI
Checkpoint
NEGA-POSI
OK: More than kΩ
NG: Short
POSI
NEGA
4