Hitachi 43FDX10B Service Manual page 65

A
(Signal PWB)
Is
Voltage at pin (25)
and (29) of
I001 3.3V?
YES
Is
Voltage at pin (53) of
I001 "H" ?
YES
Check Q003, Q004,
D926, Q914, S901
B
(Deflection PWB)
Is
Voltage at pin(4) of
IP01 14V - 20V ?
YES
Has fuse FP01 blown?
YES
Check IP01, DP04,
RP10
Replace FP01
TROUBLE SHOOTING FLOWCHART
Check Q025, D026
NO
L003
Is
Voltage at pin (23) of
NO
I001 "AC CLOCK in" ?
YES
Check I001
Check DP03, RP02,
NO
RP03, CP05
Check IP01
NO
Check Q008, Q009
NO
I904, D907
C
(Power Supply PWB)
Is
Voltage at pin(4) of
I901 14V - 20V ?
YES
Has fuse F902 blown?
YES
Check I901, D944,
D902
Replace F902
65
Check D902, I901,
NO
R903, R904
Check I901
NO