Pioneer VSX-84TXSi Service Manual page 51

5
QQ
3 7 63 1515 0
B
Yes
Is the voltage
5 V?
Yes
Is the voltage
5 V?
Yes
IC801 (Pin 33)
Is the voltage
"H" (3.3 V)?
Yes
Step 3-5: DDC
Yes
TE
L 13942296513
JA1101 (Pin 16)
Does
a signal output in
constant period
(0 to 5 V)
?
Yes
JA1101 (Pin 15)
Does
a clock output in
constant period
(0 to 5 V)
?
Yes
IC1202 (Pin 7)
Is there
a same signal as G1
(0 to 4.4 V)?
Yes
IC1202 (Pin 4)
Is there
www
a same signal as G2
(0 to 4.4 V)?
.
5
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* When connected the source
equipment to IN3.
V+5R1(HDMI IN2)
F3
No
Check JA1151.
No
Replace JA1151.
* When connected the source
equipment to IN4.
V+5R1(HDMI IN2)
F4
Only VSX-84TXSi, VSX-AX4ASi
No
Check JA1152.
No
Replace JA1152.
* When connected the source
equipment to IN3,4.
R1PWR5V
D1
No
Check the patterns in the path.
No
Replace D802, Q801 or R859.
* When connected the source
equipment to IN1.
SDA(HDMI IN1)
G1
No
Check the patterns in the path.
Check JA1101.
No
Replace JA1101.
SCL(HDMI IN1)
G2
No
Check the patterns in the path.
Check JA1101.
No
Replace JA1101.
G3
No
Check the patterns in the path.
Check IC1201,IC1202.
No
Replace IC1201,IC1202.
G3
No
Check the patterns in the path.
Check IC1201,IC1202.
x ao u163
No
y
Replace IC1201,IC1202.
i
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2 9
8
Yes
IC801 (Pin 31)
Is there
a same signal as G1
(0 to 3.3 V)?
Yes
IC801 (Pin 32)
Is there
a same signal as G2
(0 to 3.3 V)?
Yes
JA1102 (Pin 16)
Does
a signal output in
constant period
(0 to 5 V)
?
Yes
JA1102 (Pin 15)
Q Q
3 6 7 1 3 1 5
Does
a clock output in
constant period
(0 to 5 V)
?
Yes
IC1204 (Pin 7)
Is there
a same signal as G4
(0 to 4.4 V)?
Yes
IC1204 (Pin 4)
Is there
a same signal as G5
(0 to 4.4 V)?
Yes
IC801 (Pin 31)
Is there
a same signal as G4
(0 to 3.3 V)?
co
Yes
.
C
VSX-84TXSi
7
9 4 2 8
DSDA0
D1
No
Check the patterns in the path.
Check IC1205.
No
Replace IC1205.
DSCL0
D1
No
Check the patterns in the path.
Check IC1206.
No
Replace IC1206.
* When connected the source
equipment to IN2.
SDA(HDMI IN2)
G4
No
Check the patterns in the path.
Check JA1102.
No
Replace JA1102.
SCL(HDMI IN2)
0 5 8 2 9 9 4 2 8
G5
No
Check the patterns in the path.
Check JA1102.
No
Replace JA1102.
G6
No
Check the patterns in the path.
Check IC1203,IC1204.
No
Replace IC1203,IC1204.
G6
No
Check the patterns in the path.
Check IC1203,IC1204.
No
Replace IC1203,IC1204.
DSDA0
D1
m
No
Check the patterns in the path.
Check IC1205.
No
Replace IC1205.
8
9 9
A
B
C
9 9
D
E
F
51
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