[TechAssist] Re: Mitsubishi model VS-5052- convergence problem
- From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 20 Jan 2003 16:11:35 -0500
From Mitsubishi:
1. CONVERGENCE WILL NOT ADJUST PROPERLY.CHECK FOR LEAKY OR SHORTED Q8F04
PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE SIGNAL-PCB. 2.
CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE
SIGNAL PCB PART # 264P045040 3. CHECK FOR SHORTED OR LEAKY Q8F02
(PT#260P560040) AND Q8F03 (PT# 260P386010).LOCATED ON THE SIGNAL-PCB.
Also, look carefuly at the board for evidence of cooant leakage. We have
seen some strange problems on these VZ2 sets with coolant on the boards.
Leonard G. Caillouet
Service Manager
Electronics World
Gainesville, FL
352-332-5608
352-332-5668 (fax)
----- Original Message -----
From: <Ttkirkpat@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 20, 2003 2:16 PM
Subject: [TechAssist] Mitsubishi model VS-5052- convergence problem
> Blue adjust is perfect- red vertical is perfect- red horizontal has no
effect
> at all. Red is shifted about 1 and 1/2 inches left horizontally and will
not
> adjust. Replaced convergence ic's twice with no change, also filters in
> convergence circuit. All the resistors have been checked out of circuit
and
> all are perfect. This is a digitally converged unit and by going into
memory
> there still is no change horizontally. + & - voltages are correct all over
> the circuit. I'm beginning to think maybe the digital board has a problem
but
> have found nothing wrong there as yet. Suggestions or help please?! Thanks
> from Mike at the Video Center. My e-mail is ttkirkpat@xxxxxxx
>
>
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