Philips 32HF7445/93 Service Manual page 18

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EN 18 5. TPT1.1HA LA Service Modes, Error Codes, and Fault Finding
2. No raster/picture too
dim
Check
Inverter board
No
Check Scaler board
CN852,pin1=16V,
pin5=0.9V,pin6
=3V
Yes
Check
Inverter board
No
Check U811,Q821
U811 pin2=5V,Q821
pin=5,6=16V
Yes
Check scaler board
H_17010_021.eps
180907
Figure 5-6 No Raster flowchart