Pioneer VSX-84TXSi Service Manual page 50

1
QQ
3 7 63 1515 0
A
A
Step 3-3: Hot Plug Detect
Q1101 (Pin B)
Is the voltage
"L" (0 V)?
Yes
B
JA1101 (Pin 19)
No
Is the voltage
"H" (5 V)?
Yes
Q1102 (Pin B)
C
No
Is the voltage
"L" (0 V)?
Yes
TE
L 13942296513
JA1102 (Pin 19)
Is the voltage
"H" (5 V)?
D
Yes
Q1151 (Pin B)
No
Is the voltage
"L" (0 V)?
Yes
JA1151 (Pin 19)
E
No
Is the voltage
"H" (5 V)?
Yes
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2
* When connected the source
equipment to IN1.
HPDET0(HDMI IN1)
E1
No
Check the patterns in the path.
No
Replace IC501.
HPD(HDMI IN1)
E2
Check the patterns in the path.
Check Q1101,R1101.
No
Replace Q1101 or R1101.
* When connected the source
equipment to IN2.
Check D1101.
HPDET1(HDMI IN2)
E3
Replace D1101.
Check the patterns in the path.
No
Replace IC501.
R1PWR5V
E4
Check the patterns in the path.
Check Q1102,R1102.
No
Replace Q1102 or R1102.
* When connected the source
equipment to IN3.
HPDET2(HDMI IN3)
E5
Check the patterns in the path.
No
Replace IC501.
HPD(HDMI IN3)
E6
Check the patterns in the path.
Check Q1151,R1151.
No
Replace Q1151 or R1151.
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2
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3
8
Yes
Q1152 (Pin B)
Is the voltage
"L" (0 V)?
Yes
JA1152 (Pin 19)
Is the voltage
"H" (5 V)?
Yes
JA901 (Pin 18)
IIs the voltage
"H" (5 V)?
Yes
IC901 (Pin 18)
Is the voltage
"H" (5 V)?
Q Q
3 6 7
Yes
Step 3-4: Source 5V
Is the voltage
5 V?
Yes
Is the voltage
5 V?
Yes
IC801 (Pin 34)
Is the voltage
"H" (3.3 V)?
u163
Yes
B
VSX-84TXSi
3
4
2 9 9 4
* When connected the source
equipment to IN4.
HPDET3(HDMI IN4)
E7
No
Check the patterns in the path.
Replace IC501.
HPD(HDMI IN4)
E8
No
Check the patterns in the path.
Check Q1152,R1152.
Replace Q1152 or R1152.
HPD(HDMI OUT)
E9
No Check the patterns in the path.
Check JA901.
Replace JA901.
HPD(HDMI Tx)
D2
No
Check the patterns in the path.
Check D981,R989.
1 3 1 5 0 5 8 2 9
Replace D981 or R989.
* When connected the source
equipment to IN1.
V+5R0(HDMI IN1)
F1
No
Check JA1101.
Replace JA1101.
* When connected the source
equipment to IN2.
V+5R1(HDMI IN2)
F2
No
Check JA1102.
Replace JA1102.
* When connected the source
equipment to IN1,2.
R0PWR5V
D1
m
No
Check the patterns in the path.
co
Replace D801, Q801 or R853.
.
4
2 8
9 9
No
No
No
9 4 2 8 9 9
No
No
No
No