Latest threads in Electronics Repairshow only best voted threads
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Sony four blink
When my son was given this set last December it had a four blink code. I removed and disassembed the fan in the back of the set, cleaned and relubricated it and reinstalled it. The set worked for...
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12 years ago
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FS: Samsung Plasma TV Boards
I'm parting out a 2009 Samsung PN42B430 Plasma TV, the screen was broken but the boards are good. Some of the boards include: LJ41-05779A Main BN97-03227A Signal LJ41-05780A X-main LJ44-00171A Power...
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12 years ago
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looking for a simple pendulum driver circuit
I just installed a quartz battery movement into a wall clock that once had a mechanical movement. I lost the pendulum capability and I'd like to find a simple circuit that would move the pendulum with...
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12 years ago
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Yamaha XM6150
While waiting for some more TA7317P devices for my previous replair I was handed a Yamaha XM6150 six channel power amplifier with the channel C protection light on. After removing the top cover I was...
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12 years ago
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Marshall JCM 2000, DSL of 2003
Hum particularly on clean channel builds up from nothing ,over half an hour, and very intrusive 0.3V rms of hum over 8R speaker load and still rising. Putting a signal in Return, for PA only, is fine...
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12 years ago
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HP Laserjet bumper sticker remover
I bought an HP LaserJet 2300dtn on eBay for much less than usual price. I soon discovered why it was so cheap. A past owner had embalmed the printer in layers of bumper stickers, pogs, labels, and...
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12 years ago
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Old LCD worth repairing?
My 32" Polaroid LCD tv just got the black screen. Sound is good and channel changing works...just the video...It is pretty old as it cost over $900 when I got it, so that dates it 12 plus years I...
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12 years ago
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UK Customs and test equipment
Just ordered new on Ebay a cheap DSOscilloscope ~£300, source is China via Hong Kong - delivery expected approx 14 days post via DHL or similar - just wondered what can be expected as far as customs...
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12 years ago
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Transistor ID HELP!
Hi guys can anyone ID this transistor? It appears to be SK TF640m if so what is it exactly and are there substitutes that I can get for it? Thanks so much!
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12 years ago
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poor man's pot track cleaner ?
MM Electronics MP175 16 channel mixer , probably the bee's knees in its time 1978. Minor electronic problem , as only 741s , no great problem. Also one pot needs replacing but all the pots slider and...
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12 years ago
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Sony flat screen four blink code question
This is my son's set. It was given to him about six months ago by someone who didn't know what the four links most likely meant. I removed the fan, disassembled it, cleaned the shaft and bushing with...
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12 years ago
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OT Grumpy old man. Moan mutter grumble ...
Question for our leftpondian cousins. Do you have trouble with DIY fitted headlamp bulbs over there ? Back in the day, we had simple bulbs that fitted in a simple holder, that fitted easily into the...
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12 years ago
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Raspberry Pi test equipment ideas?
When he gets one , on order, a friend will make an audio analyser. If I had the time I'd try making a nearer universal exerciser/interrogator/hacker for IR remote control receivers that do not respond...
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12 years ago
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Correct URL for LG Optimus PCB problem
the photo of the pcb is located at previous posts regarding problem. http://www.flickr.com/photos/rudeco,
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12 years ago
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To go along with previous post about LG Optimus Damaged PCB
Heres the photo link of the damaged PCB in question. Notice the upper right side behind charger port. Ive already removed the burned out diode and laid it along the power rail in the photo. What are...
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12 years ago
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