Philips BTM2310/77 Servicehandleiding - Pagina 23
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TROUBLE SHOOTING
F: NO BT
Check L302 is with 7.8V
voltage or not
YES
Check Q3(on display board) is
with 3.3V voltage or not
YES
Check RX TX waveform is normal
or not
YES
BT connect ok
Refer to A's maintenance
NO
Check Q306 is with 7.8V
NO
voltage or not
YES
Check R334，Q305
NO
CheckQ4，Q5,U3 etc
components
Check L38,L20,CON7,U1and
NO
16PIN soft flat cable
method