[TechAssist] Re: MGA CS-2710RA (no chas. no) washed out video
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 7 Jun 2004 18:32:17 -0400
---------------------------------------------------------------
Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
---------------------------------------------------------------
MITSUBISHI CS2710R
Video No Contrast Control
From Mitsubishi
Check C205 Off Pin 33 Of Ic201.(.01uf At 50vdc)
---------------------------------------------------------------
MITSUBISHI CS2710R
Video No Contrast Control
From Mitsubishi
Check For Shorted Diode D210, Located Off Pin #8 Of Fbt. Pcb-Main. Part
#264p045040.
---------------------------------------------------------------
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: <BOSS1996@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, June 07, 2004 2:22 PM
Subject: [TechAssist] MGA CS-2710RA (no chas. no) washed out video
> Has chroma, weak video, brightness too high.
> Here is what I checked. IC201 (LA7655) pin 32, video input, normal
waveform
> and voltage, pin 19, low voltage, distorted video. Pin 29 has low voltage
> (brightness control input?), pin 30 connected to it by a 150k resistor has
somewhat
> higher than normal voltage. Checked 150k resistor and caps in that area.
> Problem will go away as it warms up, freezing components does not appear
to help.
> 200volt source to CRT is correct. Also changed IC201 to no avail.
> Any tips would be appreciated!
> Thanks
>
>
>
>
> Robert Cardoza
> Picture Perfect Electronics
> Pembroke Pines, Fla
> 954-435-5868
>
>
>
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
