PDP-436SXE
109
5
6
7
8
5
6
7
8
C
D
F
A
B
E
OVP : OVER VOLTAGE PROTECT
UVP : UNDER VOLTAGE PROTECT
LED
Flashing times
Operation
PD
Failure PCB Assy
PD Summary
Confirming Point
Assumed Failure Parts
Remarks
2
POWER
POWER SUPPLY
3
SCAN
43 SCAN A, B
VH UVP
SCAN IC
SCAN IC
VH-GNDH Short Cut
43 Y DRIVE
Y SUS BLOCK
IC2252, IC2253
VSUS-SUSOUT,
SUSOUT-SUSGND Short Cut
VH DC/DC
IC2502, L2501
Detection of Connector loosing out
CN2001, CN2350
43 X DRIVE
VH UVP
IC1202
IC1202
VSUS-SUSOUT,
SUSOUT-SUSGND Short Cut
4
SCN-5V
43 SCAN A, B
Detection of Connector loosing out
CN2401, CN2402
IC5V UVP
SCAN IC
SCAN IC
43 Y DRIVE
IC5V DC/DC
Q2605, R2647
Y SUS BLOCK
R2352
6
Y-DCDC
43 Y DRIVE
VOFS UVP
VOFS DC/DC
Q2606, R2619, R2620
Y SUS BLOCK
IC2252, IC2253, Q2280, Q2281
MSKS-SUSOUT Short Cut
Vprst UVP
Vprst Regulator
Q2531, Q2532, IC2535
7
Y-SUS
43 Y DRIVE
Detecting PD of mid-point
voltage
Y RESONANCE BLOCK
IC2101
Y SUS BLOCK
Q2221
8
ADRS
43 ADDRESS
Address PD
ADDRESS RESONANCE BLOCK
D1634
V+ADR-GND_ADR Short Cut
Detection of Connector loosing out
CN1501, CN3501-CN3504
9
XDRIVE
43 X DRIVE
Detection of Connector loosing out
CN1001
10
X-DCDC
43 X DRIVE
Detection of Connector loosing out
CN1201
VRN UVP
VRN DC/DC
Q1323, R1332, R1333
X SUS BLOCK
R1204, Q1272
11
X-SUS
43 X DRIVE
Detecting PD of mid-point voltage
X RESONANCE BLOCK
IC1101
13
SQ
OB DIGITAL
Drive sequence stop
SQ ASIC BLOCK
IC3401
•
DIAGNOSIS OF POWER DOWN (FAILURE POINT)