Pioneer PDP-42A3HD Training & Troubleshooting Manual page 93

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)
6 Short between NEGA-POSI on Scan Relay Board (D)
]Exchange High Voltage Board.
]Exchange Scan Relay Board (U).
]Exchange Scan Relay Board (D).
High Voltage
Board
High Voltage
Board
Checkpoint
NEGA-POSI
OK: More than kΩ
NG: Short
93
Scan Relay Board (U)
NEGA
POSI
Checkpoint
NEGA-POSI
OK: More than kΩ
NG: Short
Scan Relay Board (D)
POSI
NEGA