105S2 CM23 GSIII
Repair Flow Chart
46
40,41,34,33
Hs_in,Vs_in,Hs_out,Vs_out
check sync.
Hs_in=pin 40
Vs_in=pin 41
Hs_out=pin 34
Vs_out=pin 33
1 . Normal
Fhout=Fhin
Fvout=Fvin
2. Self test
Fhout=46.875Khz
Fvout=75Hz
3. sync out of rang
Fhin> 70KHz
Fvin>168Hz
idle status
sda=pin30 = hi
scl =pin31 = hi
30,31 IIC
sda, scl
check
7806 24C08
7501 TDA4857
7301 TDA4886
7304 MTV018N
idle status
sda= pin25 = hi
sc l= pin26 = hi
25,26. DDC
sda,scl
check
7801
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