Motorola Astro XTL 1500 - Figure 5-40. Low or no TX Injection Signal (700-800 Mhz); Low or no TX Injection Signal (700-800 Mhz)

6815854H01-A June 15, 2005
Troubleshooting Charts: Flowcharts 5-51
5.6.40 Low or No TX Injection Signal (700–800 MHz)
Figure 5-40. Low or No TX Injection Signal (700–800 MHz)
MAEPF-27811-O
Approx.
5.5 - 6V on
Q6764-C?
START
Low or No TX
Injection Signal
No
Yes
Check RF path
from TX VCO
Check Q6764 and
DC Bias Circuitry;
replace if
necessary
Approx.
5.5 - 6V on
Q6765-C?
No
Yes
Check Q6765 and
DC Bias Circuitry;
replace if
necessary
Approx.
8.5 - 9V on
Q6766-C?
No
Yes
Check Q6766 and
DC Bias Circuitry;
replace if
necessary