Philips FX20 - USB Read or Sound Issues

5-2 Trouble shooting Chart
Yes NO
Q13 has problem
Can’t read USB or
USB has no sound
Go
Yes
Check the normality of the
communication
b
etween MPEG and USB
NO
No
Yes
MPEG has problem
Check the 5V voltage of XP14 Confirm whether there is 5V
voltage of S pin of Q13
No No N N