Philips HTS3540/05 Service Manual page 33

Tuner FM does not work
Tuner FM does not work
Go
Check every
voltage on main board is
normal
Yes
Check Tuner
pin5 supply voltage is
+5V
Yes
Check Tuner
pin7,pin8, L/R output
Yes
Check the main board
U18 AK5367 PIN6,PIN7
L/R signal input
Yes
1. check
AK5367
PIN30,VDD+5V,
1 check the U18
AK5367 Pin30, VDD+5V
Yes
Replace U18 AK5367
5-6
supply
module
module
No
the U18
No
No
Refer to Power supply board part
No
Check main board tuner voltage supply
circuit.
No
Change the Tuner module
No
Check the
C227,C231,R416,R421,
Check the main board U18
POWER SUPPLY CIRCUIT
Check the main board u23
(except 12/05 version)
Trouble shooting Chart
main board