Troubleshooting - Pioneer C-AX10 Service Manual

7.1.2 Troubleshooting

Firstly confirm that connection of each connector and FFC are correctly.
Digital
Analog input or
digital input ?
Analog
Does a sound
come out with digital
input ?
Yes
Is a clock
(CN1602-pin 2)
normal?
Yes
DSP ASSY
Confirm the power supply at first if reached to each Assy, and confirm the FUSE/ICP if it is NG.
(Refer to the use point table.)
Use point table of FUSE/ICP
FUSE/ICP No.
KU/CA Type
FU101 VEK1023 (4A 125V)
FU201 VEK1023 (4A 125V)
FU202 VEK1023 (4A 125V)
IC201 AEK7006 (630mA)
IC202 AEK7006 (630mA)
IC203 AEK7006 (630mA)
IC304 AEK7006 (630mA)
IC401 ICP-N25 (1A)
IC402 ICP-N25 (1A)
IC403 AEK7016 (3.15A)
IC405 AEK7010 (1.25A)
IC407 ICP-N25 (1A)
IC408 AEK7023 (200mA)
IC409 ICP-N25 (1A)
IC410 ICP-N25 (1A)
IC411 AEK7006 (630mA)
IC412 AEK7006 (630mA)
IC413 AEK7006 (630mA)
Do lock it
(IC2102-pin 19)
?
No
Is digital input
No
(CN1401-pin 5)
normal ?
Yes
Is control
No
signal (CN2101)
normal ?
Yes
FRAD (CARD) ASSY
Part No.
NY Type
REK-106 (T4AL250V) Primary side
REK-106 (T4AL250V) DSP winding
REK-106 (T4AT250V) Digital winding
AEK7006 (630mA)
AEK7006 (630mA)
AEK7006 (630mA)
AEK7006 (630mA)
ICP-N25 (1A)
ICP-N25 (1A)
AEK7016 (3.15A)
AEK7010 (1.25A)
ICP-N25 (1A)
AEK7023 (200mA)
ICP-N25 (1A)
ICP-N25 (1A)
AEK7006 (630mA)
AEK7006 (630mA)
AEK7006 (630mA)
Is master clock
Yes
(IC1703-pin 16)
normal ?
No
No
DSP ASSY
DIGITAL I/O ASSY
Is control signal
No
normal even if dis-
connect CN2101
?
Yes
DSP ASSY
Use Point
FLAC winding
FLAC winding
FL winding
P-OFF
Audio +25V (VC25)
Auidio -25V (VE25)
Relay winding
Regulator input (VC9) for A/D +3.3V
Regulator input (VC9) for A/D +5V
Regulator input (VV5) for DAC VOL +5V
Regulator input (VC9) for D/A +5V
Regulator input (VC9) for D/A -5V
Relay (analog input) +17V (VR17)
Relay (analog output L ch) +17V (VR17)
Relay (analog output R ch) +17V (VR17)
C-AX10
L ch : #1700-
R ch : #1800-
Yes
Is DF output
(CN1703)
normal ?
No
Is control
signal (CN2102,CN2103)
normal ?
No
No
Is control signal
No
normal even if dis-
connect CN2102 and
CN2103 ?
Yes
AUDIO A (B) ASSY
Assy Name
AC ASSY
PS ASSY
PS ASSY
PS ASSY
PS ASSY
PS ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
FRAD ASSY
Yes
Yes
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