That is a 3.0 volt, 1/2 watt zener (RD3.0EB1), ref# D442, Mitsubishi part# 264P457050. Pin 13 of IC501 is the V-in pin.
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 [EMAIL PROTECTED] [EMAIL PROTECTED] www.geminicomputertvsecurityalarms.com ----- Original Message ----- From: "LeRoy Westlund" <[EMAIL PROTECTED]> To: "ELECTRONICS PROFESSIONALS LIST" <[EMAIL PROTECTED]> Sent: Friday, March 19, 2004 1:04 PM Subject: [Techs] (2nd try,...different approach).. Mitsubishi CS-40503 need partnumber, or value of D-442 > Hi, > Since nobody seems to have a Service manual on this model, perhaps I can go > a different route to find the correct value of this zener. I'm 99% sure it > will fix my problem, but, I don't want to put the wrong value in the ckt. > If someone has a similar service manual for a Mitsubishi big screen TV, that > uses a TA8739P for a deflection bus IC (in my case it's designated as > IC501),......please check off pin # 13, and see if there is a zener to > ground. That should be the same zener which I desperatly need the value of. > > I spent some time on a Google search for a data sheet on this IC, but, had > no luck getting into a Jap site, without signing up for a password. I don't > care about joining that site. > > TIA > LLW > > LeRoy Westlund > Westlund TV & Electronics > 97 North Main "At least I'll go down > Centerfield, UT 84622-0087 swingin,......what a swingin > Ph./Fax 435-528-3822 way to go." > mailto:[EMAIL PROTECTED] > > -----Original Message----- > From: LeRoy Westlund <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> > Date: Thursday, March 18, 2004 10:34 AM > Subject: [Techs] Mitsubishi CS-40503 need part number, or value of D-442 > > > >Hi members, > >I need a part number, or the value of D-442 (it tests leaky). > >It is a zener diode. The only numbers on the part are: 3-0B1. > >Also a scan of the vertical output ckt. would be helpful, or if someone > >could loan the Service manual to me, might even be better. > > > >TIA, > >LLW > > > >LeRoy Westlund > >Westlund TV & Electronics > >97 North Main "At least I'll go down > >Centerfield, UT 84622-0087 swingin,......what a swingin > >Ph./Fax 435-528-3822 way to go." > >mailto:[EMAIL PROTECTED] > > > > > > > >_______________________________________________ > >Tech Repair CD...order your just $49.00 plus shipping...One year of updates > free. > >www.intrepid-video.com www.tech-repair.net > >Techs mailing list > >[EMAIL PROTECTED] > >http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com > > > > > _______________________________________________ > Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. > www.intrepid-video.com www.tech-repair.net > Techs mailing list > [EMAIL PROTECTED] > http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com > _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com
