Motorola ASTRO XTS 5000 Detailed Service Manual page 125

5-34
RX RF—Page 4
Clock
4
synthesizer
Measure
tuning voltage
(Vt) at R512
Fbit No
< 1.2 MHz?
Yes
No
Vt= 3 Vdc?
Yes
Repair
defects
November 16, 2006
No
Vt = 0 Vdc?
Yes
5
Remove SH501,
inspect clock
oscillator circuit at
U500-19, 20
Visual
No
examination
OK?
Yes
Replace
Varactor D501
5
Remove SH501,
inspect
components
Visual
5 examination
OK?
Yes
Replace
Abacus
U500
Troubleshooting Charts: RX RF
No Repair
defects
MAEPF-27473-O
6881094C31-E