TS-450S reduced output-Please help ! - ModsAndRepairs Forum at eHam.net

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eHam.net Forum : ModsAndRepairs : TS-450S reduced output-Please help !

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TS-450S reduced output-Please help !	Reply
by VU2YK on April 29, 2009	Mail this to a friend!
Hi This is VU2YK in New Delhi. Last week I used my TS-450S and it was in perfect working condition. Amazing receiver and get unsolicited comments about nice TX audio with stock mic. The lightning fast relayless Rx/Tx switching is noiseless and any CW Ops delight. Full 100 watts out on all HF bands. Yesterday I switched on the rig, and shock and awe ! Output power reduced to 20 watts ! All else remains same. Low SWR, Power supply rock steady. ALC indicator does not move, indicating some problem inside. I did not touch the rig in the last few days. The Key symptoms are :- 1. Output 20 W on 20 M , Less on other bands with a 13.8 V supply and 50 Ohm dummy Load. Same setup and my IC-706 Mk2G shows 100 W. Cleaned Fuseholders, Power Connector. Same results. 2. No ALC indication on the Bar Graph meter. Normally this would go beyond range and off scale with full CAR insertion. Does this mean some fault at the drive level ? Will appreciate any help in diagnosing and rectifying the problem. Thanks ! 73 Rahul VU2YK

RE: TS-450S reduced output-Please help !	Reply
by OUXLY40 on November 1, 2009	Mail this to a friend!
Not sure if it's the same thing but several months ago I cured one that had suddenly dropped to 30 watts output overnight by a very careful factory alignment.

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