Philips 32PFL7422/79 - Page 20

20
TPT1.1A LA
5. Service Modes, Error Codes and Fault Finding
5.3 Repair Flow Chart
1.No work/LED is off
Check if
power switch is
normal
No
Replace Power switch
Yes
Check
IR board CN001
pin1=0V,pin2=3.7V,
pin3=3V,pin4=2.85V
,pin5=5V,pin6
=3.3V
Check IR board
Yes
Check scaler board U102
pin1=14V,pin4=1.22V,
pin7=16V,pin8=5V,
No