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1
No Power
D
C
B
A
1
2
No Power
Stand by (or ON-> Stand by)
No
FUSE F301 OPEN ?
Yes
F301,RLY301,R326 on
STBY ASSY or replace
No
Check STBY ASSY
CP701 5Pin +3.3V
No
Replace STBY ASSY
Yes
No
Check cable connection between CP701 on
Check FRONT
STBY ASSY and CN701 on FRONT ASSY. If it
ASSY CN701 5Pin
+3.3V
Yes
Check cable connection between CN704A1 on
Check CPU ASSY
No
FRONT ASSY and CN704B on CPU ASSY. If it
CN704B 11,12Pin
+3.3V
Yes
No
Check IC203(CPU IC)
VCC LINE
Yes
Replace CPU ASSY
2
3
4
Yes
Error
Indications ?
Yes
Check
"ERROR INDICATIONS"
STBY ASSY
Check IC301 or
is OK, replace that cable.
is OK, replace that cable.
Check the problem VCC line between
CN704B connector and IC203(CPU IC)
or replace CPU ASSY
3
4
5
Trouble Shoot
No
Other trouble.
Refer to
5
6
D
C
B
A
HT-R397
6
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