L14(Coil): about 28V ,
U12(Regulator)-Pin 3 : about 5V
(E54(+)Elect Cap ) : 3.3V
Action) : If voltage is normalcy TUNER change .
2. U12(Regulator)-Pin3 : 3V~ 0V
Action) : If it is 100 ohm lows, doing AC POWER OFF and measure
U12's(Regulator) 3Pin and resistance between GND,
Tuner change
(5) Check I2C Control Signal
Action) : if Voltage is drop SCL as well as SDA. “ No Signal ” message will
be Display at TV Screen. therefore each of part check have to
SCL with SDA of Voltage 3.2 ~3.5V. Check the install chip-position
and short of solder, cold solder, etc. Where are replace of
component Part, Check the insertion of part
SCL --à
SDA --à
(6) Changing SMPS test
(7) Try scan again after Factory reset
Action) : Do U2(39VF800A Flash ROM) and U1(L64108 CPU) Re-solder
if “Wait to Reset setting” Message comes continually when did
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