Repair

Plasma service manuals, no PS or syscon schematics?
Hi folks, How come plasma service manuals come without a power supply and syscon schematic ? I paid 25 US$ and i'm told manufacturers never publish PS schematics in the service manual. Incidentally the TV i'm trying to fix is a Hitachi 42PD7800TA Plasma display panel. The ps is made by Murata MPF7415. The Murata w... 15 Jun 2007 01:33

New problems in a CRT monitor.
Hello! TWO monitors, same problem. The first one: Sony multiscan E400, 19" chassis F99. This chassis is common with those other CRT computer display: IBM 6551 models SONY E400/E400E/G400 COMPAQ P900 DELL P991 The second: Sony Multiscan E500, 21", G1 chassis. The same chassis of: ELSA ECOMO730 SONY CPD-... 14 Jun 2007 13:36

JVC television - foldover at top of screen
"Peabody" <waybackNO784SPAM44(a)yahoo.com> wrote in message news:iem9i.428159$2Q1.364476(a)newsfe16.lga... I have JVC model AV-27920 television that goes back a few years. A few months ago, I began having a problem at the top of the screen. It's hard to describe, but it looks like to top part of the image is... 5 Jun 2007 22:44

LF: Schematic for IPT LCD inverter (IPHS4L19)
Hi Dave, i've been repairing a few TFT monitors lately and i agree with James that service information on these units is very difficult to come across, You can spend hours Googling schematic sites to no avail. What i have found though is that these inverters seem to be very sensitive to imbalance between the ... 26 May 2007 03:12

HPQSCH1691 Zener diode info?
0.4W zener but what voltage? ... 17 May 2007 20:38

DCC capstan howl?
Hi All, I'm attempting to repair a high end DCC recorder (Philips DCC900), the fault only seems to affect DCC tapes not normal cassettes... On playback there is a high pitched howl, suprisingly load from the transport mechanism, loading the capstan flywheel (with my finger, to slow it down) didn't make much... 13 May 2007 09:59

marantz sr 5000 A/V problem
Hi, I have a trouble with Marantz amplifier sr 5000: after a short period of time it goes into protection mode, after some seconds it turns back on, and after a while it turns back off and so on. I have tried without any speaker or devices connected and it's the same. I took it to Marantz official repair center, t... 5 May 2007 16:01

Depotted electr. ignition controller, need to ID a part
Taking apart an old CDI ignition system to revive it, am having trouble ID'ing a Fujitsu 14-pin DIP. PN is MB4213 Any help much appreciated BTW, it had a slightly-harder-than RTV potting compound that yielded nicely to a heat gun- it got crumbly when heated, returns to being tough when cool. Dave ... 20 Apr 2007 22:56

kenwood reciever
i have a kenwood KR-V6010 IT STARTED OUT THAT YOU WOULD HAVE TO LET IT WARM UP BEFORE IT WOULD WORK THEN IT JUST STOPED WORKING ALTOGEATHER IT LIGHTS UP AND EVERY THING THERE IS JUST NO SOUND ANY IDEAS? ... 19 Apr 2007 16:04

Need Japanese translation !! (capacitors)
Hi; I'm in the processs of replacing electro. caps in an old Roberts Reel to Reel deck. There are some questionable electro. caps that I'm trying to replace. These are the old "can" style caps and the color codes are written in Japanese (I believe) on the side of the can. There are 3 color dots; yellow, whit... 25 Apr 2007 15:00