[TechAssist] Re: FW: Hitachi PTV Widescreen model# 53UWX10B chassis DP-14G convergence problem : FIX
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, <techassist@xxxxxxxxxxxxx>
- Date: Sat, 05 Nov 2005 10:22:51 -0800
we've all been in your shoes............ more than once
Peggs
At 04:54 AM 11/5/05, Gerald Gill wrote:
>Finally a FIX on this one.
>
>I have been struggling with this one since October!
>The problem was what appeared to be a convergence problem that only
>affected the red and green on the left side had a twist to the problem.
>The crosshatch pattern had a split in the gv/gh/rv/rh (never in my life
>have I ever come across such a problem).
>Alvie from Hitachi worked with me on this one. It's funny the simple
>things we over look! I was absolutely convinced I had a convergence
>problem and that was shot when we pulled the convergence plugs off the
>board and the problem was still there, now what?
>Alvie thought it's got to be a horiz drive problem, so I pulled the
>board out and on the bench to take a look at it. Guess what I found; a
>2cmm chip of glass on the board.
>The penny dropped
>
>Pulled the back off and sure enough the mirror was cracked on the left
>side.
>Egg in my face, how the heck did I miss that one?
>I guess this time of year you're rushed and I really hit a mental block
>on this one (it really doesn't help when the customer is calling 3x a
>day either).
>Thanks to Alvie at Hitachi and Bob Waterman to referring this to Alvie.
>I think I let the worst fears get in the way on this one.
>
>Thanks Guys!
>
>
>
>Gerald Gill
>Gillco Electronics Inc
>113 King St East
>Bowmanville, Ont.
>Canada
>(905)623-9312
>
>
>
>-----Original Message-----
>From: Gemini Computer & TV [mailto:geminitv@xxxxxxxxxxx]
>Sent: October 4, 2005 7:06 AM
>To: Alvie Rodgers C. E. T.; gillcoelectronic@xxxxxxxxxx
>Subject: Hitachi PTV Widescreen model# 53UWX10B chassis DP-14G
>convergence problem
>
>Gerald,
>I have forwarded this to Alvie Rodgers from Hitachi to see if he can
>help
>you.
>
>Bob Waterman, CETR #RI-28
>Master Technician License #9109
>Service Manager / Parts Manager
>Gemini Computer, TV, & Security Alarms
>(508)695-7302
>(508)695-7769 FAX
>geminitv@xxxxxxxxxxx
>
>
>----- Original Message -----
>From: "Gerald Gill" <gillcoelectronic@xxxxxxxxxx>
>To: <ServiceTalk@xxxxxxxxxxxxxxxxxxx>
>Sent: Monday, October 03, 2005 5:13 PM
>Subject: [ServiceTalk] Hitachi PTV Widescreen model# 53UWX10B chassis
>DP-14G
>convergence problem
>
>
>Hi All,
>
>Problem: bottom left side convergence is out on the green and red. Note:
>weird thing is the red and green are split, more than just a convergence
>problem. To explain this a little better the green and red lines on the
>left running from top to bottom are fine until it gets just past half
>way down the screen then stops (fades out). Then the green/red lines
>continue down the screen just to the right. Did that explain it?
>
>I went into DCAM and copied the old ROM data into memory, still no good.
>I changed BOTH STK392-110, and again copied the old ROM data into memory
>still no good. All resisters are good. If I go into digital convergence
>adjustments I can align the R/G/B but I still have the split lines on
>the green/red (double image), so aligning the convergence is no darn
>good until I can figure out why the RED and GREEN split like that.
>Anyone ever see this problem before (first for me).
>
>Gerald Gill
>Gillco Electronics Inc
>
>
>
>
>
>
>
>
>
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