Labels:book | bulletin board | poster | reckoner | sky OCR: KENWOOD ASB- 1030 Service Bulletin Amateur Radio Division Subject: TS 50S "HELLO" Displaved during TX Date June 29 1993 Symptom Occassionally ar "HELLO message will appearin the display of the transceiver when the TS 50S loaded into an antenna without the use an antenna tuner This symptom usually occurs when the negative terminal of the Dower supply floating (un-grounded forRF) This can result in feedback that causes the supply voltage exceed 16 vac Corrective Action: Cut the Final Unit PC foil in two places, as shown below Add 1uF chip capacitor (C125 as shown below. Add 10uH chip ferri- inductor(L 102) as shown below Add an insulated jumper wire as shown below Parts Required: Qty Description Kenwood Part No. Circuit Description 1uF Chip Capacitor CK73EB1E1 104K C125 10 uH Ferri-inductor ...
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