Hitachi L32R100 Service Manual page 33

Troubleshooting
TV has sound
but no picture
OK
Check CON16 Pin15
Pin16&Pin17&Pin18=12V
OK
Check CON3 Pin7& Pin8
&Pin11&Pin12=24V
OK
Check U23 Pin2 3.3V
OK
Check U1,U2,U10,U29
voltage stable or not
END
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NG
Change power
board assembly
NG
Change power
board assembly
NG
Change main
board assembly
NG
Change main
board assembly