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MP3 Link does not work
MP3 Link does
not work
Go
Check
signal
PIN26:MP3_L ON front board whether normal
or not
Yes
Check Main Board U18 74HC4052 PIN2,
PIN15 L/R signal input right or not
Yes
Check voltage at U18 PIN16 (6V), check
12V on Main Board whether normal or not
Yes
Check U18 74HC4052 whether broken
or not
Yes
Replace U18 74HC4052
at
XP9
PIN28:MP3_R
5-9
No
Refer to Main Board XP9
No
Check Main Board C361, C352, R352,
R458
No
Refer to Power Board CON503
No
Check Main Board power supply
circuit.
Trouble shooting Chart
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