Labels:book | monitor | reckoner | sky OCR: KENWOOD SB-976 SERVICE BUL LLETIN AMATEUR RADIO SUBECT DATE 08/ 08/90 TH-26A INTERNAL BIRDIES The TH-26A has two internal birdies one at 145 64 5MHz and the other is at 147 200MHz The first one caused the CPU clock and the second one is caused by the PLL reference crystal. The birdie rel ated to the CPU clock can be corrected by changi ing R78 on the Control board from ohm ohm and adaing ground to R64 The birdie related to the rence cr can be corrected by changing L12 on the TX/RX B/2) board from 10uH inductor mH inductor REQUIRED PARTS RK73GB1J682J 8K OHM CHIP RESISTOR L40-1021 1mH INDUCTOR TO CHANGE R78 Disconnect the battery pack and antenna Remove the three case screws and four battery plate screws Figure Lift the front panel from the body the transceiver. Do not lose the rubber cover ...
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