Motorola GP1280 Series Informasi Layanan - Halaman 27
Jelajahi secara online atau unduh pdf Informasi Layanan untuk Radio Portabel Motorola GP1280 Series. Motorola GP1280 Series 30 halaman. Professional radio, power distribution and controller
Juga untuk Motorola GP1280 Series: Panduan Servis Dasar (46 halaman), Informasi Layanan (32 halaman), Informasi Layanan (30 halaman)
Halaman Cetak
Troubleshooting Flow Chart for VCO
5.0
Troubleshooting Flow Chart for VCO
Check R3811
No
for dry joint
or faulty
A
U3801
Pin 19 =0V
No
AUX 3 at
U3701
High?
No
Change
U3701
U3801
Pin 10
>1V?
Yes
Yes
L3831,
L3832
L3833
O/C?
No
Change
U3801
Yes
Yes
Change
U3801
Yes
TRB = 3.2V
Change L3831,
L3832
AUX 3 at
U3701
High?
Check U3701
Pin 2 for 3.2V
VCTRL
Yes
0V or
13V?
No
Check for faulty parts
or dry joints of L3812,
C3806, R3806,
R3802, & L3801
START
Yes
No LO?
A
No
No
Carrier?
No
VCO OK
Yes
Check
R3829
No
L3821,
Yes
L3822,
L3823,
O/C?
No
Change
U3801
3-5
Tx
Yes
Change
L3821,L3822,
L3823, L3825