Sony KD-43X7 H Series Service Manual page 25

2020/12/12 02:35:59 (GMT+09:00)
No Power
START
1. Check fuse impedance
F1001 / F1002
Is < 1ohm?
yes
2. Check impedance
D1001 to GND
Is > 1kohm?
yes
3. Check MOSFET
Q1007
Is > 1kohm?
yes
4. Check MOSFET
Q1002
Is > 1kohm?
yes
5. Check MOSFET
Q1008
Is > 1kohm?
yes
Check B board
SAFETY NOTES SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
no
Fuse F1001 broken
no
Diode D1001 broken
no
MOSFET Q1007 Broken
no
MOSFET Q1002 Broken
no
MOSFET Q1008 Broken
TROUBLESHOOTING
S E C T I O N 3
LD board
2
Q1007
3
SERVICE ADJUSTMENT
1
DIAGRAMS PANEL HANDLING
4
5
25
FACTORY DATA RESET
SYS SET