Philips HTS3532BL/94 Service Manual page 28

keys do not work
keys do not work
Go
Check voltage +3.3V on Front Control Board
HTS3531:(XP2 PIN9) and voltage +5V on
U135 PIN14
Yes
Check Front Control Board signals (U135
PIN10,PIN11,PIN12)
Yes
Replace Front Control Board
5-2
No
HTS3531: Fix the connection XP2 on
Front Control Board
MAIN BOARD
No
Replace U135 on Front Control
Board
Trouble shooting Chart
and XP12 on