Pioneer VSX-94TXH Service Manual page 49

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QQ
B
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Step 3-5: DDC
Yes
JA1101 (Pin 16)
Does
a signal output in
constant period
(0 - 5 V)
?
Yes
JA1101 (Pin 15)
Does
a clock output in
constant period
(0 - 5 V)
?
Yes
IC1202 (Pin 7)
Is there
a same signal as G1
(0 - 4.4 V)?
Yes
IC1202 (Pin 4)
TE
L 13942296513
Is there
a same signal as G2
(0 - 4.4 V)?
Yes
R108
Is there
a same signal as G1
(0 - 3.3 V)?
Yes
R108
Is there
a same signal as G2
(0 - 3.3 V)?
Yes
JA1102 (Pin 16)
Does
a signal output in
constant period
www
(0 - 5 V)
?
Yes
.
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*(94TXH/92TXH)
* When connected the source
equipment to IN1/-.
SDA(HDMI IN1/--) *
G1
VSX-94TXH only
No
Check the patterns in the path.
Check JA1101.
No
Replace JA1101.
SCL(HDMI IN1/--) *
G2
VSX-94TXH only
No
Check the patterns in the path.
Check JA1101.
No
Replace JA1101.
G3
VSX-94TXH only
No
Check the patterns in the path.
Check IC1201,IC1202.
No
Replace IC1201,IC1202.
G3
VSX-94TXH only
No
Check the patterns in the path.
Check IC1201,IC1202.
No
Replace IC1201,IC1202.
DSDA0
R13
VSX-94TXH only
No
Check the patterns in the path.
Check IC1205.
No
Replace IC1205.
DSCL0
R13
VSX-94TXH only
No
Check the patterns in the path.
Check IC1206.
No
Replace IC1206.
* When connected the source
equipment to IN2/1.
SDA(HDMI IN2/HDMI IN1) *
G4
No
Check the patterns in the path.
Check JA1102.
No
x ao u163
y
Replace JA1102.
i
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2 9
8
JA1102 (Pin 15)
Does
a clock output in
constant period
(0 - 5 V)
?
Yes
IC1204 (Pin 7)
Is there
a same signal as G4
(0 - 4.4 V)?
Yes
IC1204 (Pin 4)
Is there
a same signal as G5
(0 - 4.4 V)?
Yes
R108
Is there
a same signal as G4
Q Q
3 6 7 1 3 (0 - 3.3 V)? 1 5
Yes
R108
Is there
a same signal as G5
(0 - 3.3 V)?
Yes
JA1151 (Pin 16)
Does
a signal output in
constant period
(0 - 5 V)
?
Yes
JA1151 (Pin 15)
Does
a clock output in
constant period
(0 - 5 V)
?
Yes
co
C
.
VSX-94TXH
7
8
9 4 2 8
SCL(HDMI IN2/HDMI IN1) *
G5
No
Check the patterns in the path.
Check JA1102.
Replace JA1102.
G6
No
Check the patterns in the path.
Check IC1203,IC1204.
Replace IC1203,IC1204.
G6
No
Check the patterns in the path.
Check IC1203,IC1204.
Replace IC1203,IC1204.
DSDA0
R13
No
Check the patterns in the path.
Check IC1205.
0 5 8 2 9 9 4 2 8
Replace IC1205.
DSCL0
R13
No
Check the patterns in the path.
Check IC1206.
No
Replace IC1206.
* When connected the source
equipment to IN3/2.
SDA(HDMI IN3/HDMI IN2) *
G7
No
Check the patterns in the path.
Check JA1151.
No
Replace JA1151.
SCL(HDMI IN3/HDMI IN2) *
G8
No
Check the patterns in the path.
Check JA1151.
m
No
Replace JA1151.
9 9
A
No
B
No
No
C
9 9
No
D
E
F
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