Install the old EEPROM onto the new (replacement) SSB. Country TV Ron Miller Inez, TX. 77968 ----- Original Message ----- From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, November 18, 2003 2:08 PM Subject: [TechAssist] Re: Magnavox 60P8241,PTV915 proj. shuts off after 1min,getting worse] > 2nd Update after calling Philips technical (see my bottom orig post): > I called Philips,Ken was very helpful. > I mentioned the shut down after an hour, then half hour,etc, getting > worse. Also mentioned the channel number OSD bouncing all over the > screen just before it shut down, then the two blinks of the power button > LED after shut down. > Ken did say this is typical of the SSB board (PH313912725881). He says > the two blinks error means vertical protect.But since the picture was > stable, and only the OSD flipped vertically, then not a deflection > issue. That SSB with the micro on it was sending bad signal and > triggering the vertical protect shutdown. He just about bet the farm on > that. The OSD flip, stable p[icture, two blinks, all point to that board > he said. > I guess I will figure the estimate with the SSB and see. > I understand with changing the SSB board, convergence has to all be > redone. I would like some feedback as to the time for that, so as to > adjust my cost estimate properly. > And does anyone have the PDF on this? I will need info to enter service > mode,adjust,etc. > I will let the group know my results. > Either cheers or tears! > ;-) > Phil Bader > > > > Update: > The last time it shut down, I noticed the OSD characters were all over > the screen jumping. (not the picture, the OSD channel number). Would > this small "SSB: next to the tuner do this? > I am just paranoid ordering a 150.00 board as an "experiment". > I will contunue to selectivle heat areas of the chassis to isolate the > offending area. > ;-) > Phil Bader > Jan Phyl TV Inc. > > Philip Bader wrote: > > > > This is in ref to my 60P8241, PTV910 chassis. > > Since my last post, I pulled the SSB (part# on board: 313912725881/NLA/ > > alt#: PH3912725881. cost 151.62 out, 101.62 exch.)This is the upright > > board with the white ribbon cable going to an edge connector at it's top > > edge, this board is located beside the tuner, with SMD electrolytics and > > flat packs on it. > > I carefully inspected it and used my Dick Smith ESR cap tester. I found > > all SMD electrolytics clean, no leaks and acceptable ESR measurements. > > For the moment I don't think the commonly bad SSB here is the culprit. > > Customer smokes, and had nasty thick dust all over boards which I > > vacuumed away.I reinstalled customer's SSB and powered set up.I flexed > > all boards as it ran, does not seem connection related.It does seem it > > temperature related. It ran all day until a few hours ago, shut off, and > > the power button flashes a series of two blinks, pause, then two > > blinks... > > > > > > > > Philip, > > > > Just completed a PTV915 with same problem. Replaced > > > > the SSB, a common problem. You will need to redo the > > > > convergence after replacing. Also try adjusting the g2 > > > > voltages 1st, in case they are off. I read each of the > > > > g2 voltages to see if they are the same. Be aware that > > > > the set will shut off when reading the g2 volts, at > > > > least they did using a Fluke Model 70. Of course, > > > > other problems could be causing shutdown. My 3rd guess > > > > would be to change the LSB if shutdown continues. > > > George > Johnson TV > > > > > --- Philip Bader <tjanphyl@xxxxxxxxxxxxxxx> wrote: > > > > > Magnavox projection TV model 60P8241, chassis# > > > > > PTV910, made in 2001. > > > > > Started out taking several hours of good operation, > > > > > then it would shut > > > > > off, LED flashing. After months ,customer said it's > > > > > taking less time. > > > > > (30 min). > > > > > I find very little in the archives on this 2001 year > > > > > 60" TV. > > > > > Need any histories or info on this model/symptom. > > > > > Thanks, > > > > > Phil Bader > > > > > > > **************************************************************************** * > Classifieds! 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