Philips 26TA2800/93 Service Manual page 13

5.3 Repair Flow Chart
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1.No work/LED is off
Check scaler board
U7105 pin1=24V,pin4=5V
2.No raster/picture too
dim
5. Service Modes, Error Codes and Fault Finding
Check if
power switch is
normal
Yes
Check
IR board CN0201
No
pin3=5V,pin5=5V
Yes
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Check
power board
CN913,pin1=24V,
pin3=12V
Yes
Check
power board
No
IC920 pin2,IC970
pin2=12V
Yes
Check scaler board
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No
Replace Power switch
Check IR board
No
Check Scaler board
Check IC920,IC970
TPS1.1A LA 13