Repair

Sony PVM-1954Q retrace issue
Recently got a sony PVM-1954Q that had some bad electrolytics in it. I recapped the A board, (132 caps, I won't be doing that anytime soon again) fired it up and did the alignments according to the service manual (I have that as well). The only issue that 'remains' is there are 3 lines, one each for the red,... 9 Oct 2006 16:40

Need to clear TRAP flag on plasma PDP-504PU.
PDP-504PU (Type: TUCK) Just called and they don't support plasma (huh?). Our shop is pioneer authorized shop and downloaded that service manual to look for info on clear the TRAP trip flag. Got it that, clearing TRAP section but huh? No info on entering into factory service mode in order to clear this TRAP fl... 5 Nov 2006 00:12

Garage door opener
Need a schematic for the printed circuit board in my Craftsman garage door opener. Did lots of Googling. Found nothing. Learned that The Chamberlain Group makes the openers for Sears. Contacted them and asked for a schematic. They said the board is proprietary, and they won't even sell parts for it. Only ... 29 Sep 2006 22:37

Dell 1800FP / LG LD803H parts issue
Hi all, have been trying to obtain pre-programmed replacement processor for subject unit(s) which is a MC68HC908BD481B. I have a source for the blank chips, just do not have the code to flash into them. Does nayone have a source for preprogrammed chips, a copy of the flash code or the security code required ... 29 Sep 2006 13:31

Flashing Green/Orange power light on AOC LM727
I have a problem with a AOC LM727 17"tft and am looking for help in fixing this problem.When i plug in the power cord the power light flashes between green and orange then goes off then repeats over and over,the screen also flasheses wen it goes to off wich i presume is the tft powering down again.When i press ... 28 Sep 2006 06:00

TDS544A Data Acquisition Board failure
Does anyone have information about repairing a Tektronix TDS544A oscilloscope (schematics, common failures, ...) ? ... 21 Sep 2006 10:34

LCD monitor inverter/backlight repair
Hi all, I am trying to repair a 19" Samsung 191T monitor that appears to have been damaged due to a storm-related power surge over the weekend. The problem with the monitor is clearly related to the backlight: the four backlight lamps appear "burnt" and if I shine a bright light into the back of the panel, the i... 21 Sep 2006 13:50

Philips 27PT643 (L01.1UAC chassis) constantly shorting HOT
I have a Philips 27" TV (model number: 27PT643R37A, chassis number: L01.1UAC). It first chirped when powered on. I found the HOT (7460 - BU4508DX) shorted, but after I replaced it, the HOT got shorted immediately again after I turned on the TV. I've checked the three H-drive transistors (7462 - PDTC143ZT, 7461 - BC... 4 Sep 2006 03:38

Maitec linx 1500 ups
Hi, I have a Maitec linx 1500 UPS which is work fine for about 5 years. Now it has a problems. It have a bypass-on faulty. Does any one know what is this problem? How to fix this? or any where can I have diagram or manual for it? Thanks Duo ... 29 Aug 2006 00:34

Mitsubishi cs-2710ra vertical problem
My trusted Mitsubishi cs-2710ra died, it displays thin horizontal bar on the middle of the screen. I can see picture elements in the bar . I'm debating if it makes sense to fix it or just trash it. I'll attemt to fix it first by myself but I need help to troubleshoot it. Please help me to troubleshoot it or give ... 22 Sep 2006 22:14