Motorola M110/MC micro aligment (VHF)
1. ALIGMENT
Note: Key the radio while making adjustments or measurments.
1.1 GENERAL
Perform all adjustments at a supply voltage 13.2 ~0.1 volts dc, unless the instruction call for a
different voltage.
Interpret instruction to turn controls clockwise (CW) or counterclockwise (CCW) to mean »as viewed
from the component side of the circuit board«.
Picture A and B show the locations of the components.
When you perform any of the tune-up procedures given in sections 1.2, 1.3, 1.4 and 1.5, the radio
must be completly assembled except for the chassis cover, top cover of the synthesizer compartment,
and the radio sleeve. When you have completed the tune-up, install the synthesizer cover, chassis
cover and sleeve before testing the radio against specifications following the procedures given in
sections 1.4, 1.5, 1.6 and 1.8 .
The following test equipement is recommended for aligning and servicing the MC micro radio:
R2001D Communication System Analyzer
or
R2200B Service Monitor
GTF180A Mobile test set with
GTF244A Adapter cable for MC micro
PFT4053A Psophometric filter
FTP3005B Select 5 test unit (not rquired with R2001D)
R1001B Power supply
or
S1347D Power supply (for radios with 10 watts or less power)
R1037 Digital multimeter
or
R1024B Digital multimeter
1.2 TO ADJUST THE TRANSMITER
(1) Preset the following pots:
* HI PWR
R453 Fully CCW
* LO PWR
R455
Fully CCW
* VOLT LIMIT R463 Fully CW
(2) Adjust the radios dc supply voltage to 13.2 ~0.1 VDC (12.6 VDC for MAU1, six-watt model).
(3) Select the channel with highest transmit frequency.
