33
VSX-1022-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Yes
Step 3: Power supply
IC9502 (pin 3)
Is the voltage of 1.2
V
output?
N
o
OK
Replace the D-MAI
N
Assy.
Check the IC9502 and its peripheral
circuits or SUB UCOM (IC102).
OK
V
+1R2_HHH LI
N
E of D-MAI
N
Assy is OK.
Check the IC1601 DSP power pin
(cvdd): 1.2
V
Yes
Step 4: Power supply
IC9506 (pin 4)
Is the voltage of 5
V
output?
N
o
OK
Replace the D-MAI
N
Assy.
Check the IC9506 and its peripheral
circuits or SUB UCOM (IC102).
OK
V
+5_HD LI
N
E of D-MAI
N
Assy
is OK.
Check the IC1401 power pin
(dvdd & avdd): dvdd: 5
V
, avdd: 5
V
Yes
Step 5: Power supply
IC9504 (pin 3)
IC9505 (pin 1)
Is the voltage of 3.3
V
output?
Is the voltage of 1.2
V
output?
Yes
N
o
OK
Replace the D-MAI
N
Assy.
Check the IC9504 and its peripheral
circuits or SUB UCOM (IC102).
N
o
Check the IC9204
NW
PO
W
ER pin
(3.3
V
, 1.2
V
) and its peripheral
circuits or must be replaced IC9505.
OK
V
+3R3_
NW
LI
N
E of D-MAI
N
Assy
is OK.
Check the IC9204
NW
power pin
(vdd33, vdd12): 3.3
V
, 1.2
V
Summary of Contents for VSX-1022-K
Page 11: ...11 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 15: ...15 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F S HP ASSY C MAIN ASSY B AMP7 ASSY P F USB ASSY ...
Page 17: ...17 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F S HP ASSY C MAIN ASSY Y B AMP5 ASSY P F USB ASSY ...
Page 23: ...23 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 25: ...25 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F IC9204 DM860A UPD78F1167AGF ...
Page 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 ...
Page 27: ...27 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 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 ...
Page 29: ...29 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 31: ...31 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 71: ...71 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 129: ...129 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 139: ...139 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F C SIDE B CN3 CN2 CN1 CP3 CP1 ...