Samsung SP403JHPX/UMG Service Manual page 33

6-3 No Picture
No
Module M-Y/CVBS,2Hsync,Vsync,
Replace
Progressive Module
Check IC401,402,403
No
First check the circuitry
connected to the IC and
replace the IC
Check the circuitry near
ICL404 and replace
micom module
Check the circuitry near
ICL404, replace IC201
(TDA4780)
Check the circuitry near
QL401,QL402,QL403
around of ICL404(TDA4780)
Replace ICL205(CXA2504N)
Samsung Electronics
Yes
Check IC101 (TDA9810)
#10 (AGC), #12 (CVBS)
Check Progressive
Yes
2Y,2R-Y,2B-Y,Href
Check ICL404 (TDA4780)
No
#14 (Sand castle pulse)
Yes
#5 (74HC1230
Check CL129,
130,131 and AC2 5P connector for
No
#6,7,8 Check AC1 12P and SDA,SCL
output of micom module
No Check ICL204(CXA1853Q)
#9(R-in),#10(G-in),#11(B-in)
No
Check/Replace
IC101, Tuner
Yes
Check
ICL404(TDA4780)#6(B-Y)
No
#7(R-Y),#8(Y),#27(SDA)
#28(SCL)
Yes
for #27,28
Yes
Check ICL205(CXA2504N)
No
#23,#25,#27,#33,#35,#37
Troubleshooting
Yes
Check ICL404(TDA4780)
No
#20(B-OUT),#22(G-OUT)
#24(R-OUT)
Yes
Yes
Check/ Replace
CNL04 (24P)
6-3