Latest threads in Electronics Repairshow only best voted threads

Subject Author Posted Replies
 
Impossible to undo pcb screws, never had this one before
I suspect they deliberately used non-matching threads,ie cross-threaded, despite disassembly ideograph of a screw on the pcb overlay and red nail-varnish anti-shake lock. Even 2 minutes of soldering...
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6
 
Digital Thermostat Quit Working
Last night it began getting cold in my house. I went to the thermostat and found out the Digital readout was blank. I pushed the UP button and the furnace did not turn on. I popped it off the wall and...
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24
 
Finding 100A TVS diode?
BZW6-26, 26v TVS unidirectional diode, through-hole, obsolete, n/a. The original datasheet says that the 600W peak pulse power is measured over 10/1000 uS waveform, but the 100A forward surge current...
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2
 
TV not receiving Channel 2
Toshiba LCD TV Model 22C1004, made in Nov 2010. This has been a great TV, with lots of extra features that other small TV's don't have. All of a sudden, channel 2.1 and 2.2 are not coming in. The...
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11
 
L2 Audio, PA1000 slave amp
No schematic seemingly available, anyone know if circuit similar to anything else? Owner no longer remembers what the problem was. Protect LED goes from red to green and blue power LED comes on. Cold...
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4
 
Confused by Comcast "fees" & Samsung SX022ANM
I'm confused by Comcast Comcast "Broadcast TV Fee" of $6.50 and the "Regional Sports Fee" of $4.50 and the Samsung SX022ANM "thing". I'm trying to help someone else who is in an apartment and moving...
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12
 
BIOS date and time in a Pentium 4 not adjustable.
A Pentium 4 with Intel system board here. When powered up the screen displays GB85010A.86A.0078.P18.0110081719 ... CMOS Battery Low CMOS Date/Time Not Set No response to any keys when attempting to...
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10
 
circuit breaker overheat
Had two circuit breakers do something odd at home. One tripped, and I assumed somebody had a space heater and a hair dryer on at the same time or something. Then, a breaker for my computer room...
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9
 
Problems with old motor cap?
Hey All, I have an old Baldor bench grinder. Probably 70 years old or older. The motor is the type that uses a capacitor for starting and running. There is no centrifugal starting switch. I know this...
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12
 
Why should someone replace ALL the capacitors on old Tube equipment?
Why should someone replace ALL the capacitors on old Tube equipment? It seems that some people advocate that. I understand that the electrolytic caps contain chemicals which decay over time, from the...
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119
 
Transformer Question
I was looking at the commercial isolation transformers and they are very costly, so I decided to build my own. After all, all they are is a transformer with a power cord on the primary and an outlet...
10
10
 
Right to repair
This might be of interest. A farmers group is leading a movement to require manufacturers to supply service information, parts, etc. So, far, legeslation has been introduced in 6 states. Kansas, Mass,...
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31
 
Do they still sell multi-part electrolytic capacitors?
I want to re-cap an old tube type shortwave radio. I dont mind using plastic coated caps to replace the old paper-wax ones in the circuit. (Meaning the smallish ones, such as .05 .02 .001, etc.)...
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30
 
Belton BTDR-1H, reverb unit
First one I've come across, anyone know what is inside? too big to be bucket-brigade and regulator and a couple of opamps. i don;t believe this supposed schematic 7 pins to the outside world and pic...
4
4
 
Panasonic DVD Recorder DMR-ES20 takes Long Time to Initialize
Hi, Note: I did electronic service work for many years. Note: This DVD recorder does NOT use a computer. It has AV inputs and outputs plus a built in TV type tuner. My Panasonic DVD Recorder DMR-ES20,...
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