PDP-507CMX
116
1
2
3
4
1
2
3
4
C
D
F
A
B
E
5.2.2 POWER DOWN OF FAILURE ANALYSIS
Prediction of failure symptoms when a PD (power-down) is generated
LED Flashing
Count
PD Circuit
Checkpoint
Main Cause
2
Power supply PD
POWER SUPPLY Unit
Failure in the POWER SUPPLY Unit
3
SCAN PD
50 SCAN A, B Assy
SCAN IC is damaged (short-circuiting between VH and GNDH)
50Y DRIVE Assy
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
4
IC5V PD
50SCAN A, B Assy
SCAN IC is damaged (short-circuiting between IC5V and GNDH)
Disconnection of the scan-bridge (15-pin) connector
50Y DRIVE Assy
Failure in the photo coupler
Abnormality in the IC5V DC/DC converter
5
Y-DRIVE PD
50Y DRIVE Assy
Abnormality in the 16.5 V power
6
Y DCDC PD
50Y DRIVE Assy
Abnormality in the VOFS DC/DC converter
Abnormality in the VPRST DC/DC converter
Abnormality in VC_15V DC/DC converter
7
Y SUS PD
50Y DRIVE Assy
Abnormality in the DK module
Abnormality in the control signal line
8
Address PD
50 ADDRESS Assy
Short-circuiting of Vadr
TCP damaged
9
X-DRIVE PD
50X DRIVE Assy
Connectors disconnected between the DIGITAL and the X DRIVE Assys
Abnormality in the 16.5 V power
10
X DCDC PD
50X DRIVE Assy
Abnormality in VC_15V power
Abnormality in VXNRST power
11
X SUS PD
50X 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
How to distinguish which connector is disconnected
Assy
Connector
To which Assy the Connector
is Connected
Frequency of LED
Flashing
Screen Display
50X DRIVE Assy
CN1001
50 DIGITAL Assy
11 (XDRIVE)
–
CN1205
POWER SUPPLY Unit (ADR system power)
–
White (left half of the screen)
CN1204
POWER SUPPLY Unit (drive system power)
12 (X-SUS)
–
CN1206
50 ADDRESS Assy
8 (ADR)
–
50Y DRIVE Assy
CN2001
50 DIGITAL Assy
3 (SCAN)
–
CN2204
POWER SUPPLY Unit (drive system power)
3 (SCAN)
–
CN2206
POWER SUPPLY Unit (ADR system power)
–
White (right half of the screen)
CN2205
50 ADDRESS Assy
8 (ADR)
–
CN2601
50 SCAN A, B Assy
4 (SCN-5V)
–
50 SCAN A, B Assy CN2801
50Y DRIVE Assy
4 (SCN-5V)
–
50 ADDRESS
Assy
CN1602,
CN1802
50 DIGITAL Assy
8 (ADRS)
–
CN1601,
CN1801
50X DRIVE Assy,
50Y DRIVE Assy
8 (ADRS)
–
Summary of Contents for PDP 507CMX
Page 44: ...PDP 507CMX 44 1 2 3 4 1 2 3 4 C D F A B E 4 2 OVERALL CONNECTION DIAGRAM 2 2 ...
Page 45: ...PDP 507CMX 45 5 6 7 8 5 6 7 8 C D F A B E ...
Page 84: ...PDP 507CMX 84 1 2 3 4 1 2 3 4 C D F A B E 500ns div 500ns div 200ns div ...
Page 104: ...PDP 507CMX 104 1 2 3 4 1 2 3 4 C D F A B E ...