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  1. S

    TV HANNSPREE HG1143 main board 715G3805-M1C-000-005B schema / suggestions

    I guess my first question would be are you sure that your TV video is bad, or could it be just the damage to the 'cable provided receiver', which must have surely taken the main hit?
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    Samsung hp- s5053 tv

    Find the manual on-line if you don't have one and look it up. This sounds like a menu problem to me. Something is not selected.
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    Steel work bench

    The zapping I took was at somebody's home-brew workbench, before GFCI's. Something inside the flexible arm lamp housing energized the metal lamp housing, which was physically screwed to the metal workbench. I don't know if it had just happened, or how long the other guy had just been lucky...
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    Steel work bench

    My initial thought is it's a dangerous idea, but the fact of the matter is most workbenches have a steel frame, and a thick wooden benchtop, so it's probably OK. If you do this, I'd be careful about making sure the electrical outlets and anything you plan to work on are isolated from the metal...
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    Help with car stereo

    Is it possible the guy you bought this from deliberately disabled the faceplate controls, so that it can only be operated from the steering wheel controls? Is there a switch or setting that disables or enables activation of the faceplate controls? I'd check that out before I started digging into...
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    Help with 1970's TV!!

    Yeah. In the US the over-the-air broadcast signals are now all digital (used to be analog). We need an 'RF Converter' to run the new digital signal into the old analog televisions. You might check and see what you've got, the RF Converters here are pretty cheap. I know you're using some kind of...
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    Multimeter giving bad voltage readings

    Wire wool is pretty aggressive. Still sounds like a contact problem with the dial to me, but may not be fixable. Sorry we weren't able to help with this. It's nice to hear from people who attempt repairs before trashing.
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    trying to repair a table light

    Tshewang, don't be worried about the fact that we didn't understand your question. Give it another try. From what little I understood, could your recharger or rechargeable batteries be the problem maybe? Harald Kapp asked you the best questions to try to help, if you can supply us more...
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    Ever seen an outlet like this one? Need right adapter

    There's a reason that socket was installed. It's to prevent you from accidentally plugging a 120VAC appliance into it. Like heavan1944 said, stop contemplating INTENTIONALLY trying to do it. This is a good reminder why there are electrical codes.
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    Multimeter giving bad voltage readings

    My Standard is in-house built, and environmentally controlled. I use it to calibrate Fluke 732B's (and a few 'A' models) Accuracy is .1uV The issue down there (for me as the guy doing the cal) is not so much 'accuracy' as what I call 'age rate'. I cal the 732B's every 6 months and chart the...
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    Create and output a waveform Vout=k*(t)^1/2 using Agilent 33250A

    Use the Keysight contact form and ask them. Hewlett Packard changed their name to Agillent, and then changed it to Keysight. Keysight supports the Agilent test and measurement applications.
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    Sony TC-WR770/870

    Nuts. 73's de Edd must have a microfiche reader to have seen that.
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    I found a cheap and great way to get rid of Rosin off of a PCB.

    I think when somebody is used to using chemicals that work for them, we're unused to trying new stuff. My problem is that all the chemicals I found the most useful, eventually are found by some government agency to be hazardous for any one of multiple reasons, and then become prohibited...
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    Multimeter giving bad voltage readings

    Yeah. Considering the symptoms, I'd go with Chemelec's advice to clean the selector switch contacts first, and THEN see what symptoms you have left. Be especially careful about disassembly of the switch as the inexpensive meters tend to have poorly constructed assemblies. They were made to be...
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    Sony TC-WR770/870

    Maybe after another 46 years on the workbench, I'll move-up another peg to semi-skilled.
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    Sony TC-WR770/870

    Questionable skill and no younger eyes here. It'd help if maybe you could make a larger pic of the power supply section schematic? Also, unless you see some heat damage with your referenced resistors, I'd be looking more at the capacitors as posing a potential problem here.
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    Multimeter giving bad voltage readings

    I work in a Standards lab. Components do age over time, sometimes heat from readings damage components. What calibration means to me is not what most people here think when I talk about things like this. In your case, the first thing I'd ask, is what your meter 'ground' probe is attached to...
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    A Welcome to EP For AudioGuru

    Sounds to me like Audioguru finally found the best website of its type on the internet. It'll be good to have another high-quality, knowledgeable member here.
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    proximity switch?

    The first place I check for unusual things like this is All Electronics website, Van Nuys, CA. They buy a lot of end-of-production run stuff and sell it at reasonable prices. They may not have what you want, but it's a possibility.
  20. S

    Hello

    We try not to beat each other up too much here. We hope you have a pleasant and informative time here.
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