Latest threads in Electronics Repairshow only best voted threads
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0.75mm pitch ,8pin SOIC package style
Unusual package, I can get hold of the usual 1.25mm pin spacing SMD 8 pin SOIC IC . I might be able to find an exact replacement if I knew the SMD style code for .75mm spacing, normal width of SOIC IC...
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8 years ago
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Leo Laporte
I was listening to him yesterday in the car and a guy called in that said he was blind. He was asking questions about using his Apple computer for video editing. That doesn't really add up to me.
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8 years ago
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Further MS2000 synthesizer problems
Here's the service manual for reference: I replaced C109 with a 100uF electrolytic temporarily, and also found that the power and ground planes were shorted together. Common mode choke L10-L12 had...
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8 years ago
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Electrophysics 7290 IR camera schematic / service manual?
Hi, all, I have one of these nice lead salt vidicon cameras, good from about 700-1900 nm, but it's on the fritz with a blank image. Fiddling with the +300V adjust pot will make the image appear for a...
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8 years ago
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Surface mount code to device type (Chinese)
Just in case others find it useful. just requiring style code and marking code in the search box, as easy as that, for otherwise an awkward 2 digit code. I suspected it was a digital transistor , so...
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8 years ago
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HP 3561A
What there is of a service manual is at : ice.pdf I do believe an actual schematic would help. I need the vertical deflection circuit. OK, I blew out the power supply by making a short with the probe...
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8 years ago
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17 | |
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LCD TV Back Light Inverter Board Repair
I have an LCD TV and one section of the inverter board has a blown fuse that feed +24 VDC to the inverters. The other fuses fedding the other sections are good. My question is, with one section dead,...
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8 years ago
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Faulty MDS8RW101 - Vantage Controls - 120V Fused Dimming Module
I have a Vantage Controls lighting control system with 6 of these "Fused Dimming Modules" in a chassis. Each Module controls 8 light circuits. One of the dimming modules is faulty as 2 lighting...
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8 years ago
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Phone charging
if I connect the red 5v+ wire (pin4) from the peripheral connector on a at x pc power supply to the red wire on a USB cable and the black com wire(pin 2 or 3) from the peripheral connector on a atx pc...
2
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8 years ago
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2 | |
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Tantalum Capacitors
So I'm working on repairing a Korg MS2000B synthesizer for a friend with a dead power supply. Here's the service manual: The first thing I notice when looking inside is that the small SMT 100uF 10V...
51
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8 years ago
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51 | |
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Before it's put on a slow boat from China
I need a 2.7uf 63V non-polarized capacitor for a speaker crossover. It is a radial lead 10mm x 22mm cap. Ebay has them from China. (slow boat) I've checked Digi-Key, Mouser, Allied, and Newark. I've...
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8 years ago
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Anyone else seeing tremendous WISP slowdowns on UBNT 5.5.10 (versus 5.5.6)?
Anyone else seeing tremendous WISP slowdowns on UBNT 5.5.10 (versus 5.5.6)? We have a neighborhood setup in the Santa Cruz mountains, where we have been debugging a radio slowdown problem for weeks....
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8 years ago
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Silicone rubber , longterm structural integrity
Last week I came across some NOS fine bore silicone sleeving. It was dated 1978. Firstly I did not realise it went back that far, in fact at least 20 years before that. No sign of greasiness,...
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8 years ago
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Wafer Switch Contact Lubrication?
This question has bothered me for a long time: What, if any, lubrication is appropriate for wafer switch contacts? I'm tal king about those multiple position rotary switches that typically (but not...
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8 years ago
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EPA caught VW cheating - how does the car know it's being tested?
Apparently Volkswagen/Audi cheated on the USA emissions tests since 2009 to 2015 by turning off the EGR to lower nitrogen oxide emissions ONLY when the car was being tested for emissions. REFERENCES:...
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8 years ago
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