Pioneer VSX-1019AH-K Service Manual page 39

5
QQ
3 7 63 1515 0
Step 5: COMPONENT IN
Step 5-1: HDMI OUT (more than 480p)
CN1254 (Pin 5)
Is the voltage
"H" ?
I
Yes
CN1254 (Pins 13,15,17)
Is there a
analog video
signal? *
I
* Diagnose it from the COMPONENT Assy side.
Yes
Q1151,Q1155,Q1157
(Emitter)
Are the
signals output at
emitter?
Yes
TE
L 13942296513
IC1701 (Pins 2,5-8,12-19,
25-28,59-62,64),R1706
(side B)
Are the
signals output?
Yes
To Step 5-2
Step 5-2: HDMI OUT (at 480i)
Perform the same check items up to those
for IC1805 and IC1806 of Step 7.
C
Step 6: COMPOSITE IN, HDMI OUT
CN1254 (Pin 3)
www
Is there a
signal?
I
.
Yes
5
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6
COMPDET
No
Check CN1254 and diagnose
the COMPONENT Assy.
Y_IN, CB_IN, CR_IN
No
Check CN1254 and diagnose
the COMPONENT Assy.
SG_A, SG_B, SG_C
No
Check Q1151, Q1155, Q1157 and
its peripheral circuits.
Q** RXHSYNC, RXVSYNC, VOCLK
No
Check IC1701 and its peripheral
circuits.
A
A_VVYIN
No
Check CN1254 and diagnose
x ao u163
the COMPONENT Assy.
y
i
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2 9
8
Q1151 (Emitter) (side B)
Is a
signal output at
emitter?
Yes
IC1701 (Pins 2,5-8,59-62,
64),R1706 (side B)
Are the
signals output?
Yes
IC1805 (Pins 3-9),
IC1806 (Pin 4) (side B)
Are the
signals output?
Q Q
Yes
3 6 7 1 3 1 5
C
IC800 (through hole)
(Pins E13,D13,E12,D12,
E11,D11,E10,D10) (side B)
Are there
signals?
Yes
R872,R874,R875,R879,R884,
R885,R886,R873,R887
Is there a
signal?
IC1800
Yes
IC1801 (Pins 11-13),
IC1802, IC1803 (Pins 11-18),
IC1804 (Pin 4) (side B)
Are the
signals output?
co
Yes
.
To Step 7
VSX-1019AH-K
7
8
9 4 2 8
SG_A
No
Check Q1151 and its peripheral
circuits.
Q** RXHSYNC, RXVSYNC,
VOCLK
No
Check IC1701 and its peripheral
circuits.
Q16-23
VICLK
No
Check IC1805, IC1806 and its
peripheral circuits.
0 5 8 2 9 9 4 2 8
VDI0 o 7
No
Replace the IC1701.
VOD
No
Replace the DIGITAL MAIN Assy.
PHSYNK, PVSYNK, PDE
P**
PCLK
No
Check IC1801 to IC1804 and its
m
peripheral circuits.
B
8
9 9
A
B
C
9 9
D
E
F
39