Mp3 Link Does Not Work - Philips HTS3531/12 Service Manual

MP3 Link does not work

MP3 Link does
not work
Go
HTS3531:Check signal at XS605:PIN3:MP3_R
PIN1:MP3_L ON front board whether normal
or not
Yes
Check Main
PIN4,PIN11 L/R signal input whether right
or not
Yes
Check voltage at U5 74HC4052
PIN16,VDD +6V, on Main Board
Whether normal or not
Yes
Check U5 74HC4052 whether broken
Or not
Yes
Replace U5 74HC4052
Board U5 74HC4052
5-9
No Refer to Main Board XP8
No Check Main Board C169, C170, R103,
R105,
No
Check Main Board U1 power
supply and out circuit
No
Check Main Board U1
Trouble shooting Chart