Tuner Fm Does Not Work - Harman Kardon HK BDS 270 Service Manual

harman/kardon

Tuner FM does not work

Tuner FM does not work
Go
Check the DVD mode is
OK,audio output is ok
Yes
Check Tuner module
pin5 supply voltage is
+3.3V
Yes
Check Tuner module
pin6,pin7,pin8,I2S output
Yes
Check the U202
74LV541 PIN20
VDD+3.3V,
Yes
Replace U202 74LV541
No
Replace the AM board
No
Check AM boa rd tuner volt age supply
circuit.
No
Change the Tuner module
Check the m ain board U202
No
power supply circuit
BDS 270 + 570 Service Manual
Trouble shooting Chart
Page 42 of 90