Midland SYN-TECH 70-050 - Page 21

SUPPLEMENTAL ALIGNMENT INSTRUCTIONS
70-050/055
The following points should require alignment only in case of
component replacement or accidental misadjustment.
TRANSMITTER/SYNTHESIZER BOARD
RV102 - Microphone Gain Control. Adjust near the center position and
perform the standard service manual modulator alignment. Input, a 150
MV RMS 1 KHz signal at the microphone audio input and adjust RV102 to
give 2.5 KHz deviation on the transmitted signal.
LI 18 - Transmit IF. Monitor IC106 pin 14 with an RF voltmeter or
oscilloscope. Adjust L1 18 for the maximum level of the Transmit. IF
signal .
RECEIVER BOARD
RV252 - Maximum Audio Output Control. Input, a standard test signal and
turn the radio volume control maximum clockwise. Adjust. RV252 to yield
the maximum output power not exceeding 10% distortion.
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