Philips 37TA1800/93 Service Manual page 62

62 TPT1.0A LA
4.No TV sound
Check if
tuner TU101 pin11
output IF
signal
Yes
Check U118
5.No earthphone sound
Check U118
pin17=DACA_R
pin18=DACA_L
Yes
Check
U120=5V
Yes
Check
CN033=5V
Yes
Replace Side AV Board
8. Circuit Descriptions and IC Data Sheets
No
Replace TU101
No
Replace U118
No
Replace U120
Eliminate short and open
No
situation
6.No remote function
Tty another
No
remote control
Yes
Check IR receiver
7.LED and function
key poor
Check circuit around
control board and cable
between control board
and scaler board
8.No HDMI picture
Check U111
No
has HDMI code
Yes
Check Scaler Board
Replace one good
remote control
Write HDMI code in
U111