Hello Luca, I had a ARD 230A, sold it a year or two ago. From my
experience I found the circuit board connectors had small pads and
traces. Consequently the circuit traces at the connections brake during
shipment and vibration and need to be resoldered,
and or wires added to correct the brake. I found this on the main
control board as well as the input relay switching board located in the
RF cage on the bottom side of the tubes. Also had this same relay board
fall of the push on standoffs during shipment.
There were many brakes around the relays from vibration. Once I
corrected these issues the amp was awesome, I kind of wish I didn't sell
it. One thing you might want to do it reprogram the EEPROM, it's at or
beyond the limit for data retention time.
I saved the HEX file it you need a refresh, let me know. Good luck with
the amp, it's really awesome.
73,
George, K4GVT
On 1/17/2015 4:51 PM, luca wrote:
HI to All
Recently bought an amplifier for parts and not working , ARD 230A, a beautiful
machine built very well.
But has' problems I think the digital card, when it turns on the display lights
up part of the numeric characters and the buzzer sounds intermittently, I think
it's the EPROM damaged.
Let me know if exist still spares or if is a file on line to programm a new ,
and if I can help solve the concerned or tell me other tests or advice.
Many thanks to all for your attentio 73 ik5tsw Luca
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