Repair

INA159 - where?
Hi All! Is there anybody who have got idea where can I buy INA159? I saw at: Farnell, Mouser, Digikey, Distrelec, Arrows, Avnet, Rutronik, Spoerle, Future, EBV - but nothing. I need 250pcs. Thanks in advance, Arnold ... 5 Dec 2009 21:45

Toshiba 34HF85, M3U01T Chassis
This set suffered a power surge. The set switches on, produces a raster for a few seconds and shuts down. The SMPS is SOPS type. The theory of operation is not trivial. Regulation is from B+ through an opto and TL431. The B+ open circuit is 138V with the supply making a hum at 595Hz (the trouble and strife has... 14 Dec 2009 12:08

isolation transformer needed
I'm looking for an isolation transformer for repairing small (less than 1000W) power supplies. I see loads of them on ebay and some are medical grade and inexpensive. Are these usable for what I want? Other than that, any tips on where to get a good deal on one? I don't want to spend a load as this is hobby work ... 12 Jan 2010 09:33

Samsung HP-4363W - Parting Out
After many fruitless hours of troubleshooting and replacing parts, I'm throwing in the towel on this thing - I can't justify spending any more time or money on it. All the defective parts on the mainboard have been replaced but the convergence is still severely distorted. What's more I can't even save any con... 1 Dec 2009 21:47

Sanyo TV model HT32546, Ch. 32546-04 HV problem
This set came in for repair out of warranty. The customer who was referred to us by Sanyo said that he heard a "slight crackle" sound and the picture went to a small circle then the set went dead. So Far, I've found Q402 shorted, D404 shorted, D406 shorted and R484 open. Does this sound like perhaps the tip of t... 2 Dec 2009 22:20

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Does it matter if the tv antenna points one way, or 180^ the other?
Does it matter if the tv antenna points one way, or 180^ the other? You guys, especially Dave, have convinced me that I need a better (and thus bigger) antenna more than I need an amplified antenna. Does it matter if I point an antenna with several elements of different lengths to the station, or if I point it t... 5 Dec 2009 07:28

Thandar TA2000 Logic Analyser
Just bought one of these and it seems to work just fine, and has got the user manual and pods. What it lacks is a Service Manual and option ROMS. TTi have, much to my amazement, got the Service Manual (at a charge), but not the option ROM images. Is anyone able to assist with either a soft copy of the servic... 30 Nov 2009 14:44

PHILIPS Tv chassis EM3E-AA : what's this component?
widescreen philips tv with burnt component: http://www.fileden.com/files/2007/6/4/1143893/DSCF8228.JPG http://www.fileden.com/files/2007/6/4/1143893/DSCF8225.JPG looks like a thermal/resistive device, NTC or PTC, it is connected in series with the line transformer and the scan coils. I can see some text on an... 2 Dec 2009 09:51

How does crimping work?
The obvious answer is that you bend the metal of the connector so that it holds the wire in place. This doesn't seem very satisfactory. Metal always retains some flexibility, even when bent beyond its yield point. No matter how hard you squeeze, there'll be some rebound when you release the pressure, which s... 9 Dec 2009 08:48