That sounds a lot like an error code, which is documented in a very small and obscure portion of the manual.
There's a similar type (guessing here for the DC5030A) of error message on the DM5010 DMM.? It indicates that the calibration has been lost because the internal NiCd battery is dead and the battery backed up RAM (which holds calibration constants) is dead.
First, I'd see if there's a battery on board.? Dead battery is the source of many error messages.
Secondly, there may be that error code section in the manual (possibly service manual).
I'd go from there.
Harvey
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On 2/14/2022 6:23 PM, Joseph Orgnero wrote:
A while ago, I found, at a ham swap, a TM500 DC5030A counter., SN B011601, visually good condition, but, on being powered shows what, for me, is an odd fault.
With or no input, digits on te right side show the number 224 with no change regardless the settings of the controls
At the same time, the digits on the left side glow very faintly
The decimal point can be shifted and all the digits glow well when pressing Reset. Besides that there is no response to the controls or
input and the manual offers no clues.
Any ideas as to the cause of ths fault ?
Thanks in advance
Jose Orgnero VE7LBI
