5
6
7
8
49
5
6
7
8
VSX-84TXSi
C
D
F
A
B
E
Step 3-1: Power supply, CLK
IC1051(Pin 3)
Is the voltage
5 V?
No
5 V(HDMI OUT)
Step 3-2 : Reset
IC801(Pin 102)
RXRST
5V(HDMI IN1)
Yes
Is the voltage
4.4 V?
No
No
Check D1101.
Replace D1101.
V+5HD
V+5E0
5V(HDMI IN2)
Yes
Is the voltage
4.4 V?
No
No
Check D1102.
Replace D1102.
V+5E1
5V(HDMI IN3)
Yes
Is the voltage
4.4 V?
No
No
Check D1151.
Replace D1151.
V+5E2
5V(HDMI IN4)
Yes
Yes
Is the voltage
4.4 V?
No
No
Check D1152.
Replace D1152.
No
V+5E3
3.3V(HDMI Rx)
Yes
Yes
Is the voltage
3.3 V?
No
No
Check L803.
Replace L803.
Yes
V+3RX
L1101
Is the voltage
3.3 V?
(Func : HDMI1 or
HDMI2)
No
3.3 V(Cable EQ 1)
C1
Yes
Yes
X801
X'TAL(HDMI Rx)
C6
D1
Check the soldering of
L1101,Q1103 and the
peripheries.
Replace L1101,Q1103
or the peripheries.
No
Check the soldering of
IC801. Check the
peripheries of X801.
Replace.
No
Replace IC501 or IC502.
No
Replace IC501 or IC502.
No
C2
A
Yes
No
Check the soldering of
L1151,Q1153 and the
peripheries.
Replace L1151,Q1153
or the peripheries.
Only VSX-84TXSi, VSX-AX4ASi
Only VSX-84TXSi,
VSX-AX4ASi
3.3V(HDMI Rx)
Yes
Yes
Is the voltage
3.3 V?
No
No
Check L804.
Replace L804.
V+3RA
3.3V(HDMI Rx)
Yes
Is the voltage
3.3 V?
No
No
Check R839.
Replace R839.
C3
3.3V(HDMI Tx)
Yes
Is the voltage
3.3 V?
No
No
No
No
Check L904.
Replace L904.
V+3TX
3.3V(HDMI Tx)
Yes
Is the voltage
3.3 V?
No
Check L902.
Replace L902.
C4
3.3V(HDMI Tx)
Yes
Is the voltage
3.3 V?
No
Check R919.
Replace R919.
C5
1.8V(HDMI Rx)
Yes
Is the voltage
1.8 V?
No
No
Check L801.
Replace L801.
V+1R8RX
1.8V(HDMI Tx)
Is the voltage
1.8 V?
No
No
Check L905.
Replace L905.
Is oscillation
of 27 MHz
output?
No
Check the patterns in the
path.
No
IC901(Pin 42)
TXRST
Yes
D2
Check the patterns in the
path.
No
V+1R8RX
Is the voltage
"H" (3.3 V)?
Is the voltage
"H" (3.3 V)?
HDMI section
Check the soldering of IC1051 and
the peripheries of IC1051.
If soldering has not been done
correctly, replace IC1051.
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TEL 13942296513 QQ 376315150 892498299