[Kenwood] TS850SAT-Rx dead.

[Aurel Sahleanu]

Hi everybody. I do have the TS850SAT transceiver bought ten years ago at second hand
Some days ago I would like to make a CW QSO on 12 m band but as I manipulate the 
Key (with the electonic key on the transceiver) some stange tone occured and the receive
went down. The RF volume contol seems to be effective (seen on S-meter ) but the AF
volume control did nothing (no sounds on speaker or headset ). Power on transmit (80w)
on CW and SSB and the SWR indication (1:1 with the internal AT on)seems to be normal.
I opened the radio and pushing the PTT button measured the TXB=7,4V and the RXB=7,8V
as I released the PTT button.That confirms to me the TX/Rx is switching well,but on RX no
sounds cam up from the radio ( only cracked sounds on the CW Monitor,on CW mode ) .
What could be happened ? Any sugestions will be very appreciated. Aurel YO2BS .