Pioneer PDP-436SXE

PDP-436SXE
109
5678
56
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)