Pioneer VSX-1019AH-K Service Manual page 40

1
QQ
3 7 63 1515 0
A
Step 7: COMPONENT IN (at DVC ON)
COMPONENT OUT (at 480i)
Perform the same check items up
to those for IC1701 of Step 5-1.
IC1805 (Pins 3-9),
IC1806 (Pin 4) (side B)
Are the
No
signals output?
B
Yes
IC800 (through hole)
(Pins E13,D13,E12,D12,
E11,D11,E10,D10) (side B)
No
Are there
signals?
Yes
C
D
R1214
R1219
TE
R1224
L 13942296513
No
Are there
signals?
IC1800
Yes
D
Check Q1202 and its peripheral circuits.
Check Q1203 and its peripheral circuits.
Check Q1204 and its peripheral circuits.
No
Are there
signals?
IC800
Yes
CN1254 (Pin 7)
CN1254 (Pin 9)
E
CN1254 (Pin 11)
No
Are there
signals?
I
Yes
www
Diagnose the COMPONENT Assy.
F
40
1
http://www.xiaoyu163.com
2
Q16-23
VICLK
Check IC1805, IC1806 and its
peripheral circuits.
VDI0 o 7
Replace the IC1701.
A_VCYOUT_EM
A_VCBOUT_EM
A_VCROUT_EM
Replace the DIGITAL MAIN Assy.
A_VCYOUT
A_VCBOUT
A_VCROUT
Replace Q1202, Q1203, Q1204
and its peripheral parts.
A_VCYOUT
A_VCBOUT
A_VCROUT
Check the soldering and
connection of the CN1254.
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y
. i
VSX-1019AH-K
2
http://www.xiaoyu163.com
3
8
Step 8: COMPOSITE IN
COMPOSITE OUT
Perform the same check items up
to those for IC800 of Step 7.
R1214
Is there a
signal?
IC1800
Yes
Check Q1202 and its peripheral circuits.
Is there a
signal?
IC800
Yes
CN1254 (Pin 11)
Is there a
signal?
Q Q
3 6 7 1 3
I
Yes
Diagnose the COMPONENT Assy.
Step 9: GUI/JPEG (USB)
COMPOSITE/COMPONENT OUT
D
Go to .
Step 10: GUI/JPEG (USB)
HDMI OUT
C
Go to .
u163
.
3
4
2 9 9 4 2 8
A_VCYOUT_EM
No
Check IC800 and its peripheral
circuits.
NG
Replace the DIGITAL MAIN Assy.
A_VCYOUT
No
Replace Q1202 and its peripheral
parts.
A_VCYOUT
No
Check the soldering and
connection of the CN1254.
1 5 0 5 8 2 9 9 4
m
co
4
9 9
2 8 9 9