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I commend you on taking photos of the board and cropping them so they are easier to see.
If you have not done so, I would suggest replacing the large capacitors. Also, check the solder joints for what is called cold joint. Sometimes reflowing the existing solder as you were asking about can be...
I forgot to mention that when that resistor R1101 burns, the signal trace on the display becomes a spot that does not move and it increasingly brightens. At the same time, the arcing stops.
Also, after removing the burned resistor if I place my DMM where the resistor would normally be to...
My hitachi v-1050f has an arc that comes and goes often a couple of times per second exiting the anode cap while powered on. Sometimes if it does not spark I can hear a fast crackling sound inside the oscope.
The covers are removed after I decided to attempt cleaning and checking the voltages...
I have been wanting to do something similar for awhile now. I just haven't taken the time.
Have you considered the dimensions of both types of batteries? Especially if you are trying to use the same packaging of the original batteries.
Also, will the new batteries come with or without solder tabs?
I was wondering how I might be able to get a copy of the calibration and/or operating manual for a NRI 2500 oscilloscope. One website indicates it being like the GOS 3310 or the 3110
Does anybody have any information?
Thanks.
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