Low Or No Tx Injection Signal (136-174 Mhz); Figure 5-12. Low Or No Tx Injection Signal (136-174 Mhz) - Motorola ASTRO Digital XTL 5000 Detailed Service Manual
Vhf,
uhf range 1 and 2
700–800 mhz
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Also See for ASTRO Digital XTL 5000:
- Basic service manual (199 pages) ,
- User manual (162 pages) ,
- Instruction manual (38 pages)
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5-22
5.6.8
Low or No TX Injection Signal (136–174 MHz)
START
Low or No TX
Injection Signal
at TP6769
Approx.
7.5V on
C3935/C3815
Approx.
7.5V on
C3755/R3807
Approx.
9V on
R3815/C3872
Check components
between Q3758
and TP6769
May 25, 2005
Check components
No
around Q3760-C,
?
Yes
Check components
No
?
Yes
Check components
No
?
Yes
Figure 5-12. Low or No TX Injection Signal (136–174 MHz)
if OK, replace
Q3760
around Q3759,
if OK, replace
Q3759
around Q3758,
if OK, replace
Q3758
Troubleshooting Charts: Flowcharts
AEPF-27811-O_VHF
6881096C74-B
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