24
VSX-1128-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5. DIAGNOSIS
5.1 TROUBLESHOOTING
No Power
Fuse F100 is open?
Is the voltage 5.6 V CX101
pins 5, 6, 7 (C129 + side) on
the SMPS Assy?
No power
Stand by (or ON -> Stand by)
?
Yes
Yes
Replace the SMPS Assy.
No
Yes
Yes
No
No
No
No
Is the voltage 5.6 V CN9501
pins 5, 6, 7 on the D-MAIN Assy?
Is an Error indicated?
Other trouble
Refer to
"5.2 ERROR INDICATIONS".
Check D41, T101, IC102 on SMPS Assy
or replace the SMPS Assy.
This is just for general reference and does not including every single case.
Check the cable between CX101 on the
SMPS Assy and CN9501 on the D-MAIN Assy.
If it is OK, replace that cable.
Yes
No
Is the voltage 5.6 V CN601
pins 1, 2 on the D-MAIN Assy?
Check +5.6V line on the D-MAIN Assy
or replace the D-MAIN Assy.
Yes
No
Is the voltage 5.6 V CN301
pins 1, 2 on the CPU Assy?
Replace the FFC between the D-MAIN Assy
and the CPU Assy.
Yes
No
Is the voltage 5.6 V C353 on
the CPU Assy?
Replace D301, D302 or
replace the CPU Assy.
Yes
OK
Pin 2
VDD
Pin 1
Vout
5 V
3 ms
>1 ms
4.2 V
4.4 V
5 V
NG
Check Reset IC (IC302)
on the CPU Assy.
Replace IC302 or
replace the CPU Assy.
Replace the D-MAIN Assy.
Содержание Elite VSX-70
Страница 11: ...11 VSX 1128 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 34: ...34 VSX 1128 K 1 2 3 4 A B C D E F 1 2 3 4 2 TEMP Protection Circuit CPU ASSY J AMP7 ASSY K AMP7 ASSY K ...
Страница 51: ...51 VSX 1128 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 75: ...75 VSX 1128 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 107: ...107 VSX 1128 K 5 6 7 8 5 6 7 8 A B C D E F A SIDE B CP3 CP1 CN3 CN2 CN5 CN1 ...
Страница 119: ...119 VSX 1128 K 5 6 7 8 5 6 7 8 A B C D E F C2916 I SIDE B SIDE B I AUDIO ASSY CP17 CP18 CP12 CP13 CP15 CN2103 ...
Страница 122: ...122 VSX 1128 K 1 2 3 4 A B C D E F 1 2 3 4 J SIDE B J CPU ASSY CN310 CN308 CN309 CN305 CN304 CN306 CN301 Q31 Q31 ...