Motorola GM660 Service-informatie - Pagina 30

Blader online of download pdf Service-informatie voor {categorie_naam} Motorola GM660. Motorola GM660 32 pagina's. Gm series professional radio uhf (403-470mhz)
Ook voor Motorola GM660: Service-informatie (34 pagina's), Service-informatie (32 pagina's)

Motorola GM660 Service-informatie
3-12
3.6

Display Backlight

Power Up Alert Tone is audible, volume knob does operate,
display is on but no display backlight.
U0871 Pin 24
is toggling ?
YES
Base of Q0963
> 0.7V ?
YES
Collector of
Q0963
>5V & < 11V
?
YES
Check / Replace
Q0961 / R0975 / R0977
TROUBLESHOOTING CHARTS
Check for shortage
NO
U0871
Check / Replace
NO
R0965 / C0963 / R0967
Check / Replace
Q0963 / U0941 / R0961
NO
R0963 / R0969 / R0971