Philips 26MD257B/37 Service Manual page 119

5. Service Modes, Error Codes and Fault Finding
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
Replace one good
No
remote control
Invalid Change U701 writen
HDCP KEY
TPM1.0U LA 17