[TechAssist] Re: Magnavox 25" TVRR2535 chassis 25S102 DEAD need value of R432

  • From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Thu, 23 Jan 2003 07:07:50 -0500

It is on the output side of the 130 volt B+ from the power supply. It is
physically pretty large so it shouldn't be too hard to find.

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: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 23, 2003 1:09 AM
Subject: [TechAssist] Re: Magnavox 25" TVRR2535 chassis 25S102 DEAD need
value of R432


>
> Where is C432?  Do some chassis not have this cap?
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx=20
> =20
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Gemini Computer &
> TV
> Sent: Wednesday, January 22, 2003 5:29 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Magnavox 25" TVRR2535 chassis 25S102 DEAD need
> value of R432
>
>
> Make sure you replace C432 with a 100mfd/250V. Then check these from
> WINSTIPS:
>
> ---------------------------------------------------------------
> Text pasted from WinSTIPS 2.0
> http://www.ServiceSoftware.com
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Bob Farrey   25s101-101
>
> Check Q400 For Short And R432 For Open And Burned
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Osage Tv
>
> Open B+ Fuse 2.5a, R432 1k-1/2w Ok Near Str30130. If Tv Turns Itself On
> Str
> May Be Bad Or The On/Off Circuitry May Be At Fault
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Simpson'S Tv   25s102
>
> D404, R403 1.5 Ohm
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Robinson Electronics
>
> Replace R407 "Open" 100 Ohm, Replace Ic430 Reg. Str30130, Replace Q400
> Tip47 Reg. Transistor.
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Bill Dixon Tv
>
> Q403 & Q502 Shorted, R407 & R408 Open
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Reg Ic Str30130, R432, Q400
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead
>
> Topag Tv  Puerto Rico    20s1
>
> Q403, R407 100 Ohms, R408 100 Ohms, R412 130 Ohms
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead - R407 & R432 Are Burnt
>
> Blue Ribbon Tv & Computers
>
> Replace R407 (100 Ohms) And R432 (1k). Also Replace Q400 (Ecg198), Q403
> (Ecg399) And Ic430 (Str30130)
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead, Fuse Ok
>
> Dash2253
>
> R407 100ohm 1/4 Watt, L502 Open (Can Be Repaired)
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead, Lost Nuteral In Customer Fuse Box,Tv Went Dead Afterwards
>
> Emergency Tv Electronics
>
> Replaced Ic Regulator Str30130. Also Q402 ( 554-1 Or Ecg399). Q502
> H.O.T.
> (597-2 Or D1880 ) ,R432 1k 1/2w,,F401 2.5a Micro Fuse Also Watch Other
> Micro
> Fuse. Emergency Tv Electronics
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead. Fuses Ok, Than Wont Turn Off
>
> Billdog
>
> R407 100 .33w And R438 680k .25w
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead. no click or startup at power on
>
> Bill Batts
>
> Q403 Ecg399 had b-e short, R407 100 ohm open
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Dead. Replaced Q403 & R407 (Common) Then Repeat Failures Again
>
> York Tv
>
> R435 Open Intermittently (Next To R438)
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Power comes on at plugin and will not turn off
>
> J Zack   Chassis: 25s102
>
> R438 680k resistor open
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Power Off Inop    When Plugged In Audio Loud   Pix Scrambled
>
> Gauthier Tv
>
> Q400 483513047072  R432 1k  Str 30130 Replaced All 3 Parts
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Power Supply Problem?
>
> Osage Tv
>
> With Q402-B Grounded..Tv On 1-2 Volts Out Of Reg Ic?, 155v At Input Pi N
> 3,
> Only 9v At Pin 2 S/B 133v, New Reg Didn'T Help.Look For Open R432 1k
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> Power Supply Too High. Set Won'T Shut Off.
>
> Simpson's Tv
>
> Capacitor C432 (100 Mfd @ 200 V) Open. Str30130 Shorted Also.
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> B+ To High (145v) Takes A Minute To Turn Off (15v)
>
> Bay Electronics Inc.
>
> C432 Big Cap In Front Of Flyback  100mf 200v Open B+ Should Toggle From
> 130
> To 15 When Pwr On And Off
>
> ---------------------------------------------------------------
>
> PHILIPS   S1
>
> B+ Too High
>
> Simpson'S Tv
>
> C432 100mf  200v
>
> ---------------------------------------------------------------
>
> Bob Waterman, CET=AE #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: "Mitchs Electronics" <Mitchstv@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, January 22, 2003 8:20 AM
> Subject: [TechAssist] Re: Magnavox 25" TVRR2535 chassis 25S102 DEAD need
> value of R432
>
>
> >
> > Kevin, don't have print on this chassis, but on a STR30130 pin 2 base
> > circuit their is usually a 470k to ground a 47 ohm to a 33mfd/250 volt
> cap
> > and a return resister to B+ input pin 3 of 12k ohm. Hope that helps.
> > Rick Mitchell
> > Mitch's Electronics Ser.Co.
> > Mitchstv@xxxxxxxxxx
> > Lincoln, NE
> > Lincoln, Nebraska 68502
> > ----- Original Message -----
> > From: "Kevin" <kevintv@xxxxxxx>
> > To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, January 22, 2003 3:16 AM
> > Subject: [TechAssist] Magnavox 25" TVRR2535 chassis 25S102 DEAD need
> value
> > of R432
> >
> >
> > Hi fellow techs,
> >
> > This Magnavox RR2535 is dead.  All fuses are good.  I supspect the130
> > volt regulator is bad.  It doesn't test shorted, but R432 off of pin 2
> > of the STR30130 is burnt so I can't read it.  Does anyone know the
> value
> > of R432?  TIA
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
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