[TechAssist] Re: sharp 25RT59 tearing picture
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 26 Dec 2003 09:32:55 -0500
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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SHARP 25RT59
Color Inop. Also Has Jail Bars
First Electronics Svc
R425 Blanking Resistor 12k-1w. S/B Out Of Circuit To Measure. The Key Is Th
Shape Of Horiz Blanking Pulse At Emitter Of Video Driver. If Dis Torted The
Pulse Is Incorrect. Kills Color & Jail Bars Appear.
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SHARP 25RT59
Jagged Edges - Christmas Tree Effect
Stevestv@xxxxxxx Thanks To Sharpnet
Replace Ic701. To Test Install Jumper From Cap At Bridge Diode Output To
Cathode Of 125v Scr And Bring Up On Variac. If Jagged Edges Gone Replace
Ic701. Rh-Iz0073cezz
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SHARP 25RT59
Video Smear
Billdog
C624 10uf 160v
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SHARP 25RT59
Video Smear
L851 270uh Coil On Crt Pcb
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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@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: <wjstv@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, December 26, 2003 9:25 AM
Subject: [TechAssist] Re: sharp 25RT59 tearing picture
> We used to see a similar problem with the Sharp 25RC119/169/179/219/279
> which was built around the same time as your 25RT59.
>
> The problem was caused by a bad .47mf cap. It is C206 in the 25RC models
and
> looks like it might be C208 in the 25RT model.
>
> Jeff Smith
> Smith TV Service
> 1930 Main St
> Newberry, SC 29108
> 803/276-4946
>
> ----- Original Message -----
> From: Barry MacInnes <foxhole@xxxxxxxxx>
> To: Tech Assist <techassist@xxxxxxxxxxxxx>
> Sent: Friday, December 26, 2003 8:04 AM
> Subject: [TechAssist] sharp 25RT59 tearing picture
>
>
> > Hello techs,
> > This unit has several bars in the sceen that tear horizontally. The
> bars are about 4 inches wide. Has anyone seen this problem?
> > Thank You,
> > Barry
> > TV Service Clinic
> > W Lebanon,NH
> >
>
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