Repair

LF: Schematic for IPT LCD inverter (IPHS4L19)
Looking for schematic or other technical information on an LCD power-supply./inverter made by IPT (www.ipt.co.kr) Model is IPHS4L19 REV 1.2 03KJUL11225 This is from a Hansol/Multitech H950 monitor. Power supply portion appears OK, however when the inverter is activated, the backlights only flash briefly (... 19 Apr 2007 15:33

RCA ITC 222 52" HDTV projection TV.
RCA Model # D52W19 chassis # ITC 222. I'm seeing a lot of the Orega 40351A-1 10799630 flybacks failing, & after replacing it, they work fine! Keep an eye on CP150 capacitor, as it swells up. It may check ok, but it should be changed. Hope this is a help to other Techs. Dani. ... 17 Apr 2007 12:03

Tenma 72-760 60MHz Scope
Does anyone have specifications/manual/info for this scope? I can't find anything anywhere. All help appreciated. Thanks, Steve ... 17 Apr 2007 09:25

LCD TV not working - inverter or backlight dead?
My 17 month 32" LCD monitor appears to have suffered an untimely death this evening. When I turned it on, it briefly displayed the screen image from the computer but then began making a somewhat high-pitched chirps (1 per second) during which the screen flickered. After about 10 seconds the screen went black, thou... 13 Apr 2007 12:26

SRFE1164 replacement
Hello, I need to replace a couple of motorola SRFE1164 transistor in a failed RF amplifier. There seem to be no trace of a datasheet for this transistor on the net (motorola is the best for unknown parts afaik). A search on google revealed that the MRF422 might be an equivalent part. Does anyone have a datasheet... 10 Apr 2007 14:47

Sony convergence
Hi! Im still trying to get some information about convergence on this Sony projectiln mdl KP46WT500, in the service mode I get too where I want, like green skew etc and I don't get any correction with the joy stick, am I short B+ somewhere on the D board? Thanks for the help ... 8 Apr 2007 22:30

tv blows fuse
hi folks i'm new to this forum and have a question . i have a sylvania srt2127s that blows the fuse as soon as i plug it in. I just started messing with busted tv's as a hobby because i recently had surgery for a work related accident and needed something to keep my mind and my hands busy. I just fixed an old sanyo th... 29 Mar 2007 16:13

Dell M992 Monitor H.O.T. Replacement issue
tick - tick - tick The horizontal output FET was dead shorted. The original is a P9NC60, a TO-220 case deal, which has scant info on the web. The best resolution datasheet I found is 90% illegible: http://home.comcast.net/~tomdempster/temp/P9NC60.gif No matter: Schematic actually indicates Q504 is a more fam... 29 Mar 2007 14:06

NJD Spectre theatre stage light, 2003 date
Gives fully variable total spectrum floodlight output under remote control. Or it would but nothing now. Full of dust and fluff in the control area and a long term heat damaged , so presumably dramatically raised ohmage resistor. The bands are not discoloured , I think, reading 100 ohm , 5 percent and 1W size. Cur... 29 Mar 2007 12:31

Old Relay
HI All, I have a faulty relay on a control card (pretty old). The coil of a relay is open circuit and the it seems to be with the coil itself (not at the pigtails). It is a double pole double throw and the coail voltage is 60 Volts coil resistance about 5K. Part number seems to be something like NSF30.6.160... 30 Mar 2007 21:28