[TechAssist] . PHILIPS 55PP9401 Strange Convergence Problem
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: "Techassist" <techassist@xxxxxxxxxxxxx>
- Date: Fri, 24 Dec 2004 13:50:05 -0500
Jeff,
Probable cause loss of horizontal sweep, bad connections good culprit. Also
if the beam current on one of the CRT's went high, it could collapse and
burn CRT's.
Steve
At 09:17 PM 12/23/04 -0500, you wrote:
>He found burns in all CRT's..seems kind of odd, but he posted pictures:
>Blue http://htv1.tripod.com/images/bcrtline.jpg
>Green http://htv1.tripod.com/images/gcrtline.jpg
>Red http://htv1.tripod.com/images/rcrtline.jpg
>
>Jeff
>--
>Intrepid Video TV/VCR Repair
>263 S Front St, Steelton PA 17113
>717-939-7708; (F) 717-564-4952
>www.intrepid-video.com www.tech-repair.net
>----- Original Message -----
>From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
>To: <TECHSUPPORT@xxxxxxxxxxxxxxxx>
>Sent: Thursday, December 23, 2004 8:04 AM
>Subject: PHILIPS 55PP9401 Strange Convergence Problem
>
>
>I'm posting this for another tech. I thought this was a very unique problem.
>Has anyone seen this before? You have to check the link out and notice the
>streaks coming from the top
>appear to be the same length, if the convergence would be lined up.
>
>Jeff
>--
>Intrepid Video TV/VCR Repair
>263 S Front St, Steelton PA 17113
>717-939-7708; (F) 717-564-4952
>www.intrepid-video.com www.tech-repair.net
>
>The convergence went wacky supposedly after the TV
>was moved from one side of the room to the other.
>
>Found cracked solder connections on convergence amps
>pins and 2 open resistors, RK62 3.3 ohm and RK54
>1.8 ohms. There was some improvement, picture wasn't
>quite as bowed at top. Convergence won't converge
>using the auto "intellisense". Still has a slight bow
>top and bottom also. At this time I also noticed 3
>streaks coming down from the middle at top of picture
>and 1 coming up from the bottom. This picture shows
>it better than I can describe it.
>http://htv1.tripod.com/images/philipsstreaks.jpg
>
>I then replaced the STK amps and saw no improvement.
>Supply voltages on the amps seem OK.
>
>I don't have the manual on this unit but at this point
>I don't know if that would even help. Oh, one other thing,
>the raster had more green in it after the convergence
>went off like the grayscale is off.
>
>Sure could use a little direction on this beast.
>Thanks,
>
>Jon Garver
>Heritage Television Service
>
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