5-6 Trouble shooting Chart
Audio IN does not work
no
yes
no
yes
no
yes
no
yes
Check the IN board have
the singal whether or not
Check the singal source
Check the FE board have
the signal whether or not
Check the MP3 connector from IN
PCB to FE PCB
Check U6 P14&P5 have
signal On Main PCB
whether or not
Check the FFC connector from
Main PCB to FE PCB
Check U6 P10 is high
level
,
P9 is low lever?
Check the 8301 work whether
normal or not
Change the U6
Audio IN does not work
yes
Содержание HTL4111B/12
Страница 43: ...USB MP3 board Print Layout bottom and top side 7 14 7 14 ...
Страница 44: ...Front Control and Key board Print Layout bottom side 7 15 7 15 ...
Страница 45: ...Front Control and Key board Print Layout Top side 7 16 7 16 ...
Страница 46: ...Power board Print Layout Bottom side 7 17 7 17 ...
Страница 47: ...Main board Print Layout Bottom side 7 18 7 18 ...
Страница 48: ...Main board Print Layout Top side 7 19 7 19 ...
Страница 49: ...8 1 8 1 Exploded View for HTL4111 ...