Function Troubleshooting (Ypbpr Or Cvbs No Signal) - Hisense LHD32D33EU Service Manual

5.3.11. Function Troubleshooting (YPBPR or CVBS no signal)

No signal
Check if the signal cable is right? and
single output equipment setup right?
N Y
Correct setup equipment ， Check RI1、RI2、RI3
or change signal cable /RI31、RI32、RI33?
N Y
Check circuit between input
Repair RI1、RI2、RI3
terminal to U1，
/RI31、RI32、RI33
And check software is ok
Y
Change U1