Pioneer VSX-84TXSi Service Manual page 52

1
QQ
3 7 63 1515 0
C
A
Yes
IC801 (Pin 32)
Is there
a same signal as G5
(0 to 3.3 V)?
Yes
JA1151 (Pin 16)
B
Does
a signal output in
constant period
(0 to 5 V)
?
Yes
JA1151 (Pin 15)
Does
a clock output in
constant period
C
(0 to 5 V)
?
Yes
IC1252 (Pin 7)
TE
L 13942296513
Is there
a same signal as G7
(0 to 4.4 V)?
Yes
D
IC1252 (Pin 4)
Is there
a same signal as G8
(0 to 4.4 V)?
Yes
IC801 (Pin 29)
Is there
a same signal as G7
E
(0 to 3.3 V)?
Yes
IC801 (Pin 30)
Is there
www
a same signal as G8
(0 to 3.3 V)?
F
52
1
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2
DSCL0
D1
No
Check the patterns in the path.
Check IC1206.
No
Replace IC1206.
* When connected the source
equipment to IN3.
SDA(HDMI IN3)
G7
No
Check the patterns in the path.
Check JA1151.
No
Replace JA1151.
SCL(HDMI IN3)
G8
No
Check the patterns in the path.
Check JA1151.
No
Replace JA1151.
G9
No
Check the patterns in the path.
Check IC1251,IC1252.
No
Replace IC1251,IC1252.
G9
No
Check the patterns in the path.
Check IC1251,IC1252.
No
Replace IC1251,IC1252.
DSDA1
Only VSX-84TXSi, VSX-AX4ASi
D1
No
Check the patterns in the path.
Check IC1256 (Q1282*).
No
Replace IC1256 (Q1282*).
* VSX-82TXS, VSX-AX2AS
DSCL1
D1
No
Check the patterns in the path.
Check IC1257 (Q1282*).
x ao
y
No
Replace IC1257 (Q1282*).
. i
* VSX-82TXS, VSX-AX2AS
2
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3
8
Yes
JA1152 (Pin 16)
Does
a signal output in
constant period
(0 to 5 V)
?
Yes
JA1152 (Pin 15)
Does
a clock output in
constant period
(0 to 5 V)
?
Yes
IC1254 (Pin 7)
Is there
a same signal as G10
(0 to 4.4 V)?
Yes
IC1254 (Pin 4)
Q Q
3 6 7 Is there
a same signal as G11
(0 to 4.4 V)?
Yes
IC801 (Pin 29)
Is there
a same signal as G10
(0 to 3.3 V)?
Yes
IC801 (Pin 30)
Is there
a same signal as G11
(0 to 3.3 V)?
Yes
JA901 (Pin 16)
Does
a signal output in
constant period
(0 to 5 V)
?
Yes
u163
D
VSX-84TXSi
3
4
2 9 9 4
* When connected the source
equipment to IN4.
SDA(HDMI IN4)
G10
Only VSX-84TXSi, VSX-AX4ASi
No
Check the patterns in the path.
Check JA1152.
Replace JA1152.
SCL(HDMI IN4)
G11
Only VSX-84TXSi, VSX-AX4ASi
No
Check the patterns in the path.
Check JA1152.
Replace JA1152.
G12
Only VSX-84TXSi, VSX-AX4ASi
No
Check the patterns in the path.
Check IC1253,IC1254.
Replace IC1253, IC1254.
G12
Only VSX-84TXSi, VSX-AX4ASi
1 3 1 5 0 5 8 2 9
No
Check the patterns in the path.
Check IC1253,IC1254.
Replace IC1253, IC1254.
DSDA1
D1
Only VSX-84TXSi, VSX-AX4ASi
No
Check the patterns in the path.
Check IC1256.
Replace IC1256.
DSCL1
D1
Only VSX-84TXSi, VSX-AX4ASi
No
Check the patterns in the path.
Check IC1257.
Replace IC1257.
SDA(HDMI OUT)
G13
No
Check the patterns in the path.
Check JA901.
m
Replace JA901.
co
.
4
2 8
9 9
No
No
No
9 4 2 8 9 9
No
No
No
No