Labels:book | chat room | crt screen | earth | hakham | monitor | reckoner | sky | stairs OCR: KENWOOD ASB- -1032 Service Bulletin Amateur Radio Division Subject: 450/690S Low Mic Gain W/DSP 100 Date: August 1993 Symptom: Proper microphone gain/ALC readings cannot be obtained unless the user adjusts the TX GAIN potentiometer on the rear of the DSP. 100 This irregularity S caused by an instability of the DSP-100 MIC amplifier Corrective Action: Remove capacitor C200 from the IF unit on the transceiver, and replace it with R300 a chip jumper wire Parts Required: Qty Description Kenwood Part No Circuit Description Chip Jumper R92 -0670-05 R300 Replace with R300 (R92- 0670-05 Caution: This modification requires soldering equipment DSP-3 rated for CMOS type circuits Connector also requires familiarity with surface mount soldering techniques If you do not have the proper equipment or know ...
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