![]() ![]() I didn't found any obvious fault on the components measurements. I checked all the voltages(except the 1.9kv ) and all seems within the specs. I found the schematic and tried to calibrate it but the trimmer which is responsible for this is almost fully turned clockwise giving the measurements i described. I connect the probe into the 0.5vcal point and it measures only 0.3Vp-p instead of 0.5Vp-p.The same happens if i try to measure dc voltage from my power supply.For 10 vdc it reads about 7.5-8v.The channel B works ok instead. Harry potter deathly hallows part 1 mp4movies download. Hi guys, I recently bought my first oscilloscope used and although all the functions work ok,I'm having problem with the vertical gain on the first channel.It can't measure the voltage right. I don't have the service manual or a schematic so this is a nightmare to figure out. I have this Protek P3502 (aka Hung Chang 3502) oscilloscope that has a couple of power resistors that got cooked. Hung shang: os635: francky: Analog Multimeter. Hung chang multimeter analog: Full Text Matches - Check > hung chang multimeter analog: Forum Matches - Check >.
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