Pioneer HD-V9000 Service Manual page 30

1
QQ
3 7 63 1515 0
A
No. Possible cause Part to be checked
Defective HD
VIDEO
5 DECM Assy
ENCODER IC
Defects in the
SCALER IC or the
6 DECM Assy
mounted part of
the DECM Assy
[5-4] Resolution of component output cannot be switched.
No. Possible cause Part to be checked
Defective
1 DECM Assy
B
DECM Assy
[6] Displays
[6-1] No GUI displayed
No. Possible cause Part to be checked
Improper wiring
1 on the signal line DECM Assy
Defects in the
GDC IC or the
2 DECM Assy
mounted part of
the DECM Assy
C
[6-2] No composite output OSD displayed
No. Possible cause Part to be checked
Improper wiring
1 DECM Assy
TE on the signal line
L 13942296513
Defects in the
2 CHARA GEN DECM Assy
device
Defects in the
3 DECM Assy
mounted part of
the DECM Assy
D
[7] Audio
[7-1] No audio output
No digital audio output
No. Possible cause Part to be checked
Improper wiring
1 DECM Assy
on the signal line
DIT IC power
2 DECM Assy
in trouble
Defects in the
DIT IC or the
3 DECM Assy
E
mounted part of
the DECM Assy
No analog audio output
No. Possible cause Part to be checked
Power is not
1 normally being DECM Assy
supplied.
www
Improper wiring
2 DECM Assy
on the signal line
Defects in the
AUDIO DAC IC
3 or the mounted DECM Assy
F
part of the
DECM Assy
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Point to be checked
Check the HDMI output.
If any of the above cases is not applicable.
Point to be checked
-
Point to be checked
Check the wiring for the peripheral circuits
of the GDC IC (IC2502).
If any of the above cases is not applicable.
Point to be checked
Check the wiring for the peripheral circuits
of the CHARA GEN IC (IC5005).
Check whether the video signal is normal
and only the OSD output is not obtained.
If any of the above cases is not applicable.
Point to be checked
Check the wiring for the peripheral circuits
of the DIT IC (IC5501).
Check the power supply voltages for DIT
(V+3R3D_DIT and V+3R3A_DIT).
If any of the above cases is not applicable.
Point to be checked
Check the power supply voltages (V+10R7,
VREF_5, and V+5A_5) for audio.
Check the wiring condition for the audio
x signal lines (R OUT and L OUT). ao
y
. i
If any of the above cases is not applicable.
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8
Measures to be taken
If an HDMI output is obtained normally, the HD
VIDEO ENCODER IC is defective. Replace the
IC5007 or the DECM ASSY.
Replace the DECM Assy.
Measures to be taken
Replace the DECM Assy.
Measures to be taken
Check the wiring on the signal line.
Eliminate any improper wiring by soldering.
Replace the DECM Assy.
Measures to be taken
Check the wiring on the signal line.
Q Q
Eliminate any improper wiring by soldering.
3 6 7 1 3
The CHARA GEN IC is defective.
Replace the IC5005.
Replace the DECM Assy.
Measures to be taken
Check the wiring on the signal line.
Eliminate any improper wiring by soldering.
There may be improper wiring or a defective part in
either of the power blocks. Improve the wiring or
replace the defective part.
Replace the parts in the following order and check
the operation.
1 DIT IC (IC5501), 2 DECM Assy
Measures to be taken
There may be improper wiring or a defective part in
either of the power blocks. Improve the wiring or
replace the defective part.
Eliminate any improper wiring by soldering.
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Replace the parts in the following order and check
.
the operation.
1 AUDIO DAC IC (IC5503), 2 DECM Assy
HD-V9000
3
4
2 9 9 4 2 8
Reference
10.13 DECM
Assy (13/18)
Reference
Reference
10.7 DECM
Assy (7/18)
Reference
10.12 DECM
Assy (12/18)
1 5 0 5 8 2 9 9 4
10.12 DECM
Assy (12/18)
Reference
10.15 DECM
Assy (15/18)
10.15 DECM
Assy (15/18)
Reference
10.14 DECM
Assy (14/18)
m
10.14 DECM
Assy (14/18)
co
4
9 9
2 8 9 9