[TechAssist] Re: Mitsubishi CS3520R Vertical problems need schematic.
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 27 Dec 2005 17:41:09 -0600
Jerry,
Try this tip:
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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MITSUBISHI CS35203
Vertical No Vert Deflection
From Mitsubishi
Check 12v Supply At Vertical Ic401 Pin 1. If Missing, Suspect Open Coil
L511 (1000 Uh). Located On Pcb-Main At Ic401 Pin 1. Pt# 325c108070
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Also, follow your +26v back to the flyback. Could be D909 is the
rectifier and R917 is the low-ohm resistor between the diode and the
vertical IC. Also, should find a 35-50 volt cap on the line. Can use an
NTE552 for D909. A good guess at R917 would be 1.2 ohm, 1 watt.
HTH,
Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Tue, 27 Dec 2005 15:20:42 -0800 (PST) GERALD GANN
<alpha21century1234@xxxxxxxxxxxxx> writes:
> Mitsubishi CS3520R Vertical problems need schematic.
> Changing vertical IC did not help. No 12 to 10volts on pin 1
> only about 3volts. Also 26, 27volt line pulled way down.
> I found some tips on T/A one said check D-4E1 at pin 1 on
> vertical IC it checked good. The other tip said check D-909 and
> R917. We couldn?t find either one of those anywhere.
> Hoping some one has the schematic in PDF they could send me
> and maybe some other tips. I did find it on servicemanuals.net for
> $23.99 for download but I like free better don?t you. Thanks
> Jerry
> Alpha 21 Electronics
> Granite City, IL 62040
> 618-452-8620
> alpha21century1234@xxxxxxxxxxxxx
>
>
>
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