[Kenwood] TS950SDX transmit problem

[Peter Ravn]

All of a sudden my TS950SDX has fallen ill. The receiver works fine, but the
transmitter is not well. 1) With the exception of 80 meters the output has
fallen dramatically on all bands, and on 20 meters there is no output at
all. 2) The speech processor is also affected. On some bands there is no
indication of audio on the ALC, neither the yellow nor the white bar is
seen, although the transmit audio is heard on the monitor and the gain
slightly increased in the earphones when the two processor controls are
turned CW. 3) The problem is the same without ATU and speech compressor. 4)
The idle current in the finals is about 0.5 A on all bands.

Thanks.

OZ8CTH

Peter

 


BAND

ATU 

OUTPUT

MONITOR AUDIO

ALC LC

(idle/engaged)


160

ok

70 W/FM

100 W/SSB

Audible, but yellow bar on ALC meter not engaged. Comp peak never over 5dB
even with controls turned almost fully CW

0.5/6


80

ok

150 W/FM

150W/SSB

Yellow bar engaged as normal, white bar not seen

0.5/6


40

ok

120 /FM

140/SSB

Audible audio, but no bar readings

0.5/6


20

No indication of output when ATU button is pressed. Sometimes the SWR runs
out of scale

Zero

Audible, but low audio. No bar readings

0.3/3


17

ok

120 W/FM

120 W/SSB

Audible, but yellow bar on ALC meter not engaged. Comp peak never over 5dB
even with controls turned almost fully CW

0.5/6


15

ok

80 W/FM

80 W/SSB

Audible, but yellow bar on ALC meter not engaged. Comp peak never over 5dB
even with controls turned almost fully CW

0.5/5


12

ok

80 W/FM

80 W/SSB

Audible, but yellow bar on ALC meter not engaged. Comp peak never over 5dB
even with controls turned almost fully CW

0.5/3


10

ok

80 W/FM

80 W/SSB

Audible, but yellow bar on ALC meter not engaged. Comp peak never over 5dB
even with controls turned almost fully CW

0.5/3