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Pioneer PDP-42A3HD Service Manual page 128

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1
(3-1) Detach connectors and cables on failed Board.
(Caution) Be careful of handling cables and connectors to avoid Failure. Be sure to take off Heat Sink before detach Data
Relay Board. See Page 30 for the procedure.
A
Data Relay Board (LU)
B
C
Data Relay Board (LD)
(3-2) Loosen screws of failed Board and put on good Board.
(Caution) Be careful not to leave screwdriver, screw or screw dust. Be sure to take off Heat Sink before detach Data Relay
Board. See the next page for the procedure.
Data Relay Board (LU); 3 screws
D
E
Digital Board 4 screws
F
Data Relay Board (LD)
128
1
2
8 connectors
Common Relay Board
1 connector
Digital Board
7 connectors
8 connectors
Common Relay
Board15
3 screws
PDP-42A3HD
2
3
Data Relay Board (RU)
9 connectors
Data Relay Board (RD)
9 connectors
Data Relay Board (RU); 3 screws
screws
Data Relay Board (RD)
3 screws
3
4
High Voltage
Board
6 connectors
High Voltage
Board15
screws
4

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