Pioneer PDP-4280HD Service Manual page 65

5
How to distinguish which connector is disconnected
Assy Connector
CN1001
CN1201
X DRIVE Assy
CN1202
CN1203
CN2001
CN2301
CN2302
Y DRIVE Assy
CN2303,
CN2304
CN2501,
CN2502
CN2801,
SCAN A, B Assy
CN2901
CN1501
ADDRESS Assy
CN1502
5
6
To which Assy the Connector
is Connected
DIGITAL Assy
POWER SUPPLY Unit (drive system power)
POWER SUPPLY Unit (ADR system power)
ADDRESS Assy
DIGITAL Assy
POWER SUPPLY Unit (drive system power)
POWER SUPPLY Unit (ADR system power)
ADDRESS Assy
SCAN A, B Assy
Y DRIVE Assy
DIGITAL Assy
X DRIVE Assy,
Y DRIVE Assy
6
7
LED Flashing Count
5 (XDRIVE)
11 (X-SUS)
8 (ADRS)
8 (ADRS)
3 (SCAN)
3 (SCAN)
8 (ADR)
8 (ADR)
4 (SCN-5V)
4 (SCN-5V)
8 (ADRS)
8 (ADRS)
PDP-4280HD
7
8
A
Screen Display
B
C
D
E
F
65
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