Pioneer PDP-42A3HD - Page 93

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