[Elecraft] K2 cannot be swithed ON properly.

[Ueli Zulauf]

After years of operation my K2 cannot be swithed ON properly.
- Configuration: K2 (No. 3680) with KDSP2, KSB2, KNB2, KAT2, K160RX.
- By switching ON the display shows Elecraft for 3 seconds and thereafter the last used frequency (28.15 MHz).
- All keys and the VFO are inactive.
- Current drain is 400mA (to high).
- Noise of several relays during power-ON is audible.
- Speaker brings (AF-gain dependend) audio for < 1 second and thereafter the audio is muted.
- by changing TX power, the level appears on display as normal.
- Transmit is not possible.
- LED on KDSP2 extinguish after < 1 second (communication schould be OK)
- 5 VDC and 8 VDC on the control board are OK.

Has someone a good idea how to de-freeze this blocked K2 ?

73, Ueli / HB9MFK
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