PDP-5000EX
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5.2.2 POWER DOWN OF FAILURE ANALYSIS
• List of detection of disconnected connectors
PD (Power-down) diagnosis
Assy Name
Connector
Connection Assy
Number of
LED flashes
Screen Display
X DRIVE
CN1001
FHD DIGITAL Assy
11 (X DRIVE)
CN1204
POWER SUPPLY Unit (ADR system)
−
White screen
CN1206
POWER SUPPLY Unit (drive system) 12 (X-SUS)
CN1201, CN1202, CN1203, CN1205
ADDRESS Assy
8 (ADR)
Y DRIVE
CN2001
FHD DIGITAL Assy
3 (SCAN)
CN2351
POWER SUPPLY Unit (drive system) 3 (SCAN)
CN2353
POWER SUPPLY Unit (ADR system)
−
White screen
CN2354, CN2355, CN2356, CN2357
ADDRESS Assy
8 (ADR)
CN2401, CN2402
SCAN Assy
4 (SCN-5V)
SCAN
CN2701, CN2801
Y DRIVE Assy
4 (SCN-5V)
ADDRESS
CN1502, CN1702
FHD DIGITAL Assy
8 (ADRS)
CN1501, CN1701
X/Y DRIVE Assy
8 (ADRS)
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
X, Y DRIVE Assy
Failure in the POWER SUPPLY Unit
MSK_MOD is damaged (short-circuiting between VS and GND)
Each Assy
16.5V/ 12V/ 6.5V/ 5.1V short-circuit within one of PCB.
3
SCAN PD
SCAN Assy
SCAN IC is damaged (short-circuiting between VH and GNDH)
Y DRIVE Assy
4
IC5V PD
SCAN Assy
SCAN IC is damaged (short-circuiting between IC5V 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
Disconnection of the scan-bridge (15-pin) connector
Y DRIVE Assy
Failure in the photo coupler
Abnormality in the IC5V DC/DC converter
5
Y-DRIVE PD
Y DRIVE Assy
Abnormality in the 16.5 V power
6
Y DCDC PD
Y DRIVE Assy
MSK_MOD is damaged (short-circuiting of the mask switch)
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
Y DRIVE Assy
Abnormality in the DK module
Short-circuiting of Vadr
TCP damaged
Abnormality in the control signal line
8
Address PD
ADDRESS Assy
9
X-DRIVE PD
X DRIVE Assy
Connectors disconnected between the DIGITAL and the X DRIVE Assys
Abnormality in the 16.5 V power
10
X DCDC PD
X DRIVE Assy
Abnormality in VC_15V power
Abnormality in VXNRST power
11
X SUS PD
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
Summary of Contents for PDP-5000EX
Page 41: ...PDP 5000EX 41 5 6 7 8 5 6 7 8 C D F A B E ...
Page 43: ...PDP 5000EX 43 5 6 7 8 5 6 7 8 C D F A B E ...
Page 44: ...PDP 5000EX 44 1 2 3 4 1 2 3 4 C D F A B E 4 3 FHD MAIN ASSY FHD MAIN ASSY ...
Page 45: ...PDP 5000EX 45 5 6 7 8 5 6 7 8 C D F A B E ...
Page 46: ...PDP 5000EX 46 1 2 3 4 1 2 3 4 C D F A B E 4 4 50FHD X DRIVE ASSY 50FHD X DRIVE ASSY ...
Page 47: ...PDP 5000EX 47 5 6 7 8 5 6 7 8 C D F A B E from Power supply X Drive power supply map ...
Page 48: ...PDP 5000EX 48 1 2 3 4 1 2 3 4 C D F A B E 4 5 50FHD Y DRIVE ASSY 50FHD Y DRIVE ASSY ...
Page 51: ...PDP 5000EX 51 5 6 7 8 5 6 7 8 C D F A B E ...
Page 54: ...PDP 5000EX 54 1 2 3 4 1 2 3 4 C D F A B E 4 9 POWER SUPPLY UNIT POWER SUPPLY UNIT ...
Page 167: ...PDP 5000EX 167 5 6 7 8 5 6 7 8 C D F A B E 10 3 LED INFORMATION LED Pattern State LED Pattern ...