Sony KD-43X7 H Series Service Manual page 52

2020/12/12 02:35:59 (GMT+09:00)
2.2.3 Headphone Out No Sound
SAFETY NOTES SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
START
No Sound
Do a Factory Setting &
set to desire channel with sound
No Sound
Check AV Setup,
Headphone is selected
No Sound
Use another Headphone
No Sound, Headphone OK
Headphone Inserted,
Check J3501 Pin4 Voltage
No Sound, Headphone OK,
J3501 Pin4 is 3.3V
HP Amp IC (IC3501) or Main IC
(IC5000) problem
Change B-board
DONE
TROUBLESHOOTING
S E C T I O N 3
No Sound, Headphone OK,
J3501 Pin4 is 0V
No Sound, Headphone OK,
J3501 Pin4 is 3.3V
SERVICE ADJUSTMENT
Headphone problem
Replace J3501
DIAGRAMS PANEL HANDLING
Sound
52
FACTORY DATA RESET
SYS SET