PDP-5016HD
150
1234
1234
C
D
F
A
B
E
5.2.2 DIAGNOSIS OF THE PD (POWER-DOWN)
Prediction of failure symptoms when a PD (power-down) generated
How to distinguish which connector is disconnected
LED Flashing
Count
(Interface Assy)
PD Circuit Checkpoint Main Cause
Red 2 Power supply PD POWER SUPPLY Unit
Failure in the POWER SUPPLY Unit
Red 3 SCAN PD
SCAN IC is damaged (short-circuiting between VH and GNDH)
Connectors disconnected between the POWER SUPPLY Unit and the Y DRIVE Assy
Connectors disconnected between the DIGITAL and the Y DRIVE Assys
Failure in the VH power
Red 4 IC5V PD
42 SCAN A, B Assy
50 SCAN A, B Assy
42 SCAN A, B Assy
50 SCAN A, B Assy
SCAN IC is damaged (short-circuiting between IC5V and GNDH)
Disconnection of the scan-bridge (15-pin) connector
Failure in the photo coupler
Abnormality in the IC5V DC/DC converter
Red 5 Y-DRIVE PD
Abnormality in the 16.5 V power
Red 6 Y DCDC PD
Abnormality in the VOFS DC/DC converter
Abnormality in the VPRST DC/DC converter
Abnormality in VC_15V DC/DC converter
Red 7 Y SUS PD
42 Y DRIVE Assy
50 Y DRIVE Assy
42 Y DRIVE Assy
50 Y DRIVE Assy
42 Y DRIVE Assy
50 Y DRIVE Assy
42 Y DRIVE Assy
50 Y DRIVE Assy
42 Y DRIVE Assy
50 Y DRIVE Assy
Abnormality in the DK module
Abnormality in the control signal line
Red 8 Address PD
42 ADDRESS Assy
50 ADDRESS Assy
Short-circuiting of Vadr
TCP damaged
Red 9 X-DRIVE PD
Connectors disconnected between the DIGITAL and the X DRIVE Assys
Abnormality in the 16.5 V power
Red 10 X DCDC PD
Abnormality in VC_15V power
Abnormality in VXNRST power
Red 11 X SUS PD
42 X DRIVE Assy
50 X DRIVE Assy
42 X DRIVE Assy
50 X DRIVE Assy
42 X DRIVE Assy
50 X DRIVE Assy
Abnormality in the DK module
Abnormality in the control signal line
Connectors disconnected between the POWER SUPPLY Unit and the X DRIVE Assy
Assy
Connector
To which Assy the Connector
is Connected
Frequency of LED
Flashing
(Inter Face Assy)
Screen Display
42 X DRIVE Assy
50 X DRIVE Assy
CN1001 42 DIGITAL Assy, 50 DIGITAL Assy Red 11 (XDRIVE)
–
CN1204 POWER SUPPLY Unit (ADR system power)
–
White (left half of the screen)
CN1206 POWER SUPPLY Unit (drive system power) Red 12 (X-SUS)
–
CN1201,
CN1202,
CN1203,
CN1205
42 ADDRESS Assy
50 ADDRESS Assy
42 ADDRESS Assy
50 ADDRESS Assy
Red 8 (ADR)
–
42 Y DRIVE Assy
50 Y DRIVE Assy
CN2001 42 DIGITAL Assy, 50 DIGITAL Assy Red 3 (SCAN)
–
CN2351 POWER SUPPLY Unit (drive system power) Red 3 (SCAN)
–
CN2353 POWER SUPPLY Unit (ADR system power)
–
White (right half of the screen)
CN2354,
CN2355,
CN2356,
CN2357
Red 8 (ADR)
–
CN2401,
CN2402
42 SCAN A, B Assy ,50 SCAN A, B Assy Red 4 (SCN-5V)
–
SCAN A, B Assy
CN2701,
CN2801
42 Y DRIVE Assy, 50 Y DRIVE Assy Red 4 (SCN-5V)
–
50 ADDRESS Assy
42 ADDRESS Assy
CN1502,
CN1702
42 DIGITAL Assy, 50 DIGITAL Assy Red 8 (ADRS)
–
CN1501,
CN1701
42 X DRIVE Assy, 50 X DRIVE Assy
42 Y DRIVE Assy, 50 Y DRIVE Assy
Red 8 (ADRS)
–
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9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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