Sony KD-43X7 H Series Service Manual page 58

2020/12/12 02:35:59 (GMT+09:00)
2.2.7 Optical Out No Sound
Check Optical line short to GND?
(SPDIF_OUT)
SPDIF_OUT no short to GND
Change CN3601
SAFETY NOTES SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
No Red light
Red light OK,
SPDIF_OUT no short to GND,
No Sound
SPDIF_OUT short to GND
Sound
TROUBLESHOOTING
S E C T I O N 3
START
No Sound
Do a Factory Setting &
set to desire channel with
sound
No Sound
Optical Jack Red light, OK?
No Sound
Optical cable, OK?
OK
External receiver, OK?
OK
UI setting, OK?
(TV System settings)
UI OK, No Sound
Main IC (IC5000) problem
OK
Change B-board
DONE
SERVICE ADJUSTMENT
Important Note :
Please do not direct eyes checking the Optical Red light,
it may harmful to eyes.
NG
Change Optical cable
No Sound
NG
Change External
receiver
No Sound
NG
Correct UI setting
No Sound
DIAGRAMS PANEL HANDLING
Sound
58
FACTORY DATA RESET
SYS SET