Philips 15MF227B/27 Service Manual page 18

18
TPM1.0U LA
5.No earthphone sound
5. Service Modes, Error Codes and Fault Finding
Check
U760 pin15=3.3V
Yes
Check U760
pin20=HPOUTL
pin6=HPOUTR
Yes
Replace Side AV Board
6.No remote function
Tty another
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
Enter CSM mode
to check item 6
Valid
Check Scaler Board
Eliminate short and open
No
situation
No
Replace U760
Replace one good
No
remote control
Invalid Change U701 writen
HDCP KEY