[TechAssist] Re: Mitsubishi VS45501, chassis VZ4, dim picture.

  • From: "Shoreline Electronics" <jstielau@xxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 13 Nov 2005 09:11:27 -0500

Pip failure would not affect OSD.

==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
========================

----- Original Message ----- 
From: "Rochester TV" <rochester.tv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, November 12, 2005 2:03 PM
Subject: [TechAssist] Re: Mitsubishi VS45501, chassis VZ4, dim picture.


> You have to bypass the pip module, just not remove it.There are a few
> capacitor's that couple the lumanance and chromance signals.
>
> ----- Original Message ----- 
> From: "John Mielke" <maintv2004@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, November 12, 2005 11:40 AM
> Subject: [TechAssist] Mitsubishi VS45501, chassis VZ4, dim picture.
>
>
>>I have a Mitsubishi VS45501, chassis VZ4 made in 1997 that has a dim
>>picture
>> that is too bright.  It does not have retrace and does not shutdown.  The
>> customer said the problem started gradually.  I have replaced IC200
>> (CXA2095S) per winstips and checked all the electrolytics and transistors
>> around that IC.  The brightness and contrast controls change the OSD bars
>> but there is no change in the picture.  Color and tint controls work
>> normally.  I removed the PIP module and the picture is still bright, of
>> course with no video, and the OSD is still dim.  Has anyone seen this
>> before?  TIA, John.
>> John Mielke
>> Main TV
>> 636 Main St
>> Longmont, Co 80501
>> 303 776 6955
>> 303 776 0792 fax
>> www.longmontmaintv.com
>> maintv2004@xxxxxxxxxxx
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>
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