40
VSX-1022-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
Check the parts and patterns
in the path pin 3 of IC102.
Check the parts and patterns in the
path pins 1, 2 of IC102. If IC1001 is
failure, replace the D-MAI
N
Assy.
Check the parts and patterns in
the path pins 1, 2 of IC102.
If IC1203 is failure, replace IC1203.
Check the parts and patterns in
the path pin 7 of IC102.
Check the parts and patterns in
the path pin
8
of IC102.
N
o
IC1001 (pin 69)
Is the voltage 0 to 3.3
V
?
N
o
N
o
Does a signal
output in constant period?
(0 to 3.3
V
)
Is there a data output?
(0 to 3.3
V
)
XHDPP_RST
66:
V
SCL
67:
V
SDA
IC1001 (pins 66, 67)
Yes
XABT_RST
IC1203 (pin 53)
N
o
Is there a data
input and output?
(0 to 3.3
V
)
XAD
V
_RST
IC1202 (pin 51)
Yes
N
o
Check the parts and patterns in
the path pins 1, 2 of IC102.
If IC1203 is failure, replace IC1203.
Check the line and IC1202.
If IC1202 is failure, replace IC1202.
IC1202 (pin 36 (C
V
BS), 47 (CR),
4
8
(CB), 49 (Y), 50 (SOY))
N
o
Does a signal
output in constant period?
(0 to 3.3
V
)
62:
V
SCL
61:
V
SDA
54:
V
SCL
53:
V
SDA
N
ote1:
IC1202 - using the model
V
SX-1022/42/
8
27
IC1203 (pins 62, 61)
Yes
Step 3: Diagnosis
Each data lines confirmation checks it after standby off/on.
Yes
Does a signal
output in constant period?
(0 to 3.3
V
)
IC1202 (pins 54, 53)
Yes
Yes
To Step 4
Check the X1001 and its
peripheral circuits or replace
the D-MAI
N
Assy.
Check the X1202 and its
peripheral circuits or replace
IC1202.
N
o
N
o
Yes
IC1001 (pins 113, 114)
Is there a 27 MHz
input/output?
Is there a 2
8
.63636 MHz
input/output?
IC1202 (pins 21, 22)
Yes
Yes
Yes (3.3
V
)
Yes
Step 4: X'TAL
Turn the power off and insert
the wire securely.
N
o
COMP_DET
C
N
101
Are the connectors
securely inserted?
Does a signal output
in constant period?
(
W
A
V
E)
Check the line and IC102.
Check the
V
IDEO Assy.
N
o
N
o
IC102 (pin 12)
Does a signal
output high (3.3
V
)?
W
hen inserting
Component Y signal.
SIG
N
AL I
N
PUT
IC1202 (pins 36, 47, 4
8
, 49, 50)
Step 5: ANALOG UP (VSX-1022/42/
8
27 only)
Yes
To Step 6
To Step 5
Check the X1201 and its
peripheral circuits or replace
IC1203.
Check the IC1201 and its
peripheral circuits or replace
IC1201.
N
o
Yes
N
o
Is there a 27 MHz
input?
IC2003 (pin 7)
IC1201 (pins 1, 2, 6)
Yes
Is there a 27 MHz
input?
A
A
TMDS OUTPUT
Check the IC1001. If IC1001 is
failure, replace the D-MAI
N
Assy.
N
o
Yes
IC1001
(pins 152,153,154,155,156,157,15
8
,159)
Are there signals
(approx. 0.5
V
p-p)
I
N
all lines?
Step 6: TMDS
End
Содержание VSX-1022-K
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Страница 26: ...26 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 8 CPU BLOCK DIAGRAM E CPU ASSY ...
Страница 27: ...27 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 28: ...28 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 9 VIDEO BLOCK DIAGRAM F VIDEO ASSY ...
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Страница 31: ...31 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 71: ...71 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
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