[TechAssist] Re: mitsubishi vs-4543
- From: "Shoreline Electronics" <jstielau@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 3 Apr 2005 09:53:06 -0400
Sounds like a convergence issue.
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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MITSUBISHI VZ3
Convergence And Raster Distortion
Check C924 (1000 Ufd 36v 105 C) And C925 (100 Ufd 50 V) In The -24 Volt
Supply Circuit On The Main Pcb.
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MITSUBISHI VZ3
Convergence And Raster Distortion
Check For -5 Vdc To The Convergence Pcb At "Gm" Connector Pin 10, If Low,
Missing Or Noisy, Check C936 (1000 Ufd 16 V) And C935 (100 Ufd 16 V) In
The -8 Volt Supply Circuit On The Main Pcb.
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MITSUBISHI VZ3
Convergence And Raster Distortion
Check For 20 Vpp Vertical Pulse To Pin 9 Of The "Gl" Connector To The
Convergence Pcb, If Missing, Weak Or Distorted, Check Pulse At Source Pin 7
Of Ic401 (Pump Up Output) On The Signal Pcb, If The Pulse Is Not Correct At
Pin 7 Check C402 100 Ufd 50v And Ic401 Part # 270p064020.
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MITSUBISHI VZ3
Convergence And Raster Distortion
Go To The Convergence Menu (Menu 2 3 5 9) And Check The Adjustment Settings
For Convergence. If All Items Are Set At "127". The EPROM Settings Are At
Default. Clear The Convergence Menu And Access The Option Menu (Menu 1 3 7
0) Use The Adjust Button To Select E2reset And Press Qv. This Should Insure
The EPROM Is Clear. At This Time All Adjustments, Convergence Geometry And
Convergence Should Be Done.
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MITSUBISHI VZ3
Video 1/2 Inch White Lines In Picture
Bad C933 100 Ufd Cap Near Power Supply
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MITSUBISHI VZ3
Pincushion Distortion - Top And Bottom Way Out Of Alignment : All 3 Rasters
Jeff Stielau : 4/8/04: Shoreline Electronics
EPROM Corrupted.
Checking The Geo Alignment Data ( Global Green Geometry) , All Values Were
Set For 127
Also , All The Red And Blue Data Values Were Set For 127 Also.
Starts By Realigning Green Raster For Proper Image Geometry , Then Do The
Red And Blue.
Time Consuming.......At Least An Hour Or So For Perfection!
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==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
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----- Original Message -----
From: <Gilbio@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, April 02, 2005 5:10 PM
Subject: [TechAssist] mitsubishi vs-4543
> gooday,have to make service call far away in country MIT's mod#vs-4543 TV
> has
> sound but picture on screen has red strait line down center off to side
> also
> green and blue jaged lines about 2" right down center of screen.has anyone
> seen this before? just trying to get a heads before i got on this call.
> thanks in advance
> GIL LOW
> G L ELECTRONICS
> 6 EMBREY CT
> APPLETON,WI 54915
> 920-739-0007
> 801-749-0016(FAX)
> E-MAIL gilbio@xxxxxxx
> HAVE A GREAT DAY
>
>
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