Pd (Power-Down) Diagnosis Of Failure Analysis - Pioneer PRO-110FD Service Manual

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5.3.2 PD (POWER-DOWN) DIAGNOSIS OF FAILURE ANALYSIS

Prediction of failure symptoms when a PD (power-down) is generated
A
Red LED
Operating
Defective Assy
Flashing
PD
Count
POWER SUPPLY Unit
X DRIVE Assy
2
POWER
Y DRIVE Assy
SCAN Assy
X DRIVE Assy
3 SCAN
Y DRIVE Assy
B
DIGITAL Assy
SCAN Assy
4
SCN-5V
Y DRIVE Assy
C
6
Y-DCDC Y DRIVE Assy
7
Y-SUS Y DRIVE Assy
ADDRESS Assy
8
ADRS
DIGITAL Assy
D
X DRIVE Assy
Y DRIVE Assy
X DRIVE Assy
9
XDRIVE
DIGITAL Assy
10
X-DCDC X DRIVE Assy
E
11
X-SUS X DRIVE Assy
12 DIG-DCDC DIGITAL Assy
POWER SUPPLY Unit
15
UNKNOW
DIGITAL Assy
F
64
1
2
PD Outline Checkpoint
Failure in the POWER SUPPLY Unit
X SUS BLOCK
VSUS UVP
Y SUS BLOCK
SCAN IC
X SUS BLOCK
VH UVP
Y SUS BLOCK
VH DC/DC converter
Connectors
CN2001,CN2301
disconnection
CN3509
detection
Connectors
CN2801,CN2901,CN2902,CN3001,
disconnection detection
CN3002,CN3101
SCAN IC
IC5V UVP
IC5V DC/DC
Y MSK BLOCK
VNOFS UVP
VNOFS DC/DC
YPRST Regulator
Vprst UVP
15VDD UVP 15VDC/DC
Y MSK BLOCK
VKOFS1_2 UVP
VKOFS1_2 Regulator
VKOFS3 UVP Y MSK BLOCK
VKOFS3 Regulator
Y MSK BLOCK
VKOFS4 UVP
VKOFS4 Regulator
Center electric potential
Y RESONANCE BLOCK
detection PD
VADR UVP ADDRESS RESONACE BLOCK
VADR UVP TCP
CN1601,CN1602,CN1801,CN1802
Connectors
CN3501 to CN3508
disconnection
detection
CN1202 to CN1206
CN2302 to CN2306
Connectors CN1001
disconnection
detection
CN3510
Connectors
CN1201
disconnection detection
X SUS BLOCK
15VDD UVP
15VDC/DC
VXKOFS1 Regulator
VXKOFS1 UVP
X OFFSET BLOCK
VXKOFS2 Regulator
VXKOFS2 UVP
X OFFSET BLOCK
Center electric potential
X RESONANCE BLOCK
detection PD
Abnormality in the DC-DC converter
control IC
3.3V, 2.5V, 1.1V
UVP, OVP, OCP
Periphery of the DC-DC converter
5.1V OCP Abnormality in 5.1V input
(include abnormality in the protection fuse)
Connectors
P4
disconnection detection
Connectors
CN3801
disconnection detection
ModuleUcom can not
Each PD line of ModuleUcom
detection
UVP: Under Voltage Protect , OVP: Over Voltage Protect
PDP-5010FD
2
3
Possible Defective Part
Q1219 to Q1224
Q2217 to Q2224
SCAN IC
Q1218 to Q1224,Q1226
Q2217 to Q2224
IC2601,IC2603,D2604
SCAN IC
Q2764,D2768,R2764
Q2320 to Q2325,Q2330,Q2332,Q2334
D2606,Q2709,Q2710
Q2604,Q2605,IC2602
Q2662,R2669
Q2320 to Q2325,Q2330,Q2332,Q2334
Q2705,Q2702
Q2320 to Q2325,Q2330,Q2332,Q2334
Q2706,Q2703
Q2320 to Q2325,Q2330,Q2332,Q2334
Q2707,Q2704
Q2106 to Q2109,Q2111,Q2113,
D2104 to D2107
L1201,R1217
Q1402
Q1405,Q1406
Q1302,Q1304
Q1403,Q1404
Q1301,Q1303
Q1108,Q1116,Q1112,Q1119
IC3801
Q3841, Q3861, Q3881
L3841, L3861, L3881
R3820, R3848, R3868, R3888
FU3801
3
4
Remarks
VSUS-SUSOUT and SUSOUT-
SUSGND are short-circuited.
VSUS-SUSOUT and SUSOUT-
SUSGND are short-circuited.
VSUS-SUSOUT and SUSOUT-
SUSGND are short-circuited.
VSUS-SUSOUT and SUSOUT-
SUSGND are short-circuited.
LMSK is short-circuited.
LMSK is short-circuited.
LMSK is short-circuited.
LMSK is short-circuited.
EXT_PD line: Open
EXT_PD line: Open
It becomes "UNKNOW" except
above-mentioned PD detection
condition.
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