[TechAssist] Re: Mitsubishi PTV VS45501A No video to blue CRT
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 13 Jan 2003 07:15:14 -0500
LeRoy,
I have that exact model for service in a customer's home and I too, do NOT
have the manual. In my case, the blue CRT has excessive fluid leak and it
leaked right onto the signal PCB. I would suggest you take a close look for
a CRT leak!
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Saturday, January 11, 2003 2:37 PM
Subject: [TechAssist] Mitsubishi PTV VS45501A No video to blue CRT
>
> Hi Members,
> I am trying to trace the video back from the blue CRT board, to see where
I
> am losing it. I have good video driving the Red, and Green tubes.
> I Have NO video on SG pin 1.
> Also, no video on RM pin 3.
> Also, nothing driving Q222.
> From that point, I am lost with out a schematic.
> I am asumming that the video driver IC is IC200, but, not sure.
> If IC200 is correct, which pins are the RGB outputs, and what is the part
> number for IC200 ? Also, is there anything in between IC200, and Q222,
that
> could block my video, that I need to check ?
>
> Thanks for any help,
> LLW
>
> LeRoy Westlund
> Westlund TV & Electronics " Walk tall,...Walk straight
> 93 North Main and look the world
> Centerfield, UT 84622-0087 right in the eye "
> Ph./Fax 435-528-3822
> mailto:LLW@xxxxxxxxxx
>
>
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