[TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
- From: "Willie Hunter" <williehunter2@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 14 Mar 2004 12:08:32 -0500
Steve, did you get the PDF file I sent to your mailbox?
Willie.
Hunter TV
Detroit,Mich.
>From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
>Date: Sun, 14 Mar 2004 11:58:14 -0500
>
>Sorry George- Was a Typo. I meant LM7809 was the original .
>
>Steve Hearns
>Technotronic Dimensions, NY [USA]
>WWW.TECHNOTRONIC-DIMENSIONS.COM
>1-877-817-9885 (Voice / Fax Toll Free - US Only)
>
>
>----- Original Message -----
>From: "George" <grndmstrg@xxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Sunday, March 14, 2004 3:32 AM
>Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
>
>
>Hold the phone!!!! LM7909 is a negative voltage regulator (-9v) while 7808
>is a positive (+8v) regulator. You might try a 7908 for testing.
>
>George
>Afana Electronics
>Moreno Valley, CA
>----- Original Message -----
>From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Saturday, March 13, 2004 8:13 PM
>Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
>
>
> > Making Progress....I think?
> >
> > I resoldered the Flyback just for the Heck of it. Then I went
> > in and was gonna resolder that V.Reg IC with the Heat Sink on it which
>was
> > Overheating on the Main board. I think its IC4121. It just came apart
>when
>I
> > touched it - the leeds just broke near the Case. Its an LM7909 , and I
>had
>a
> > 7808 Laying around here, so I threw that in with a bigger heat sink
>salvaged
> > from an Old Monitor Chassis.
> >
> >
> > Fired it up with the regular heaters, and I must say the
> > Picture is looking better. Its less Grainy, but I still have too much
>red.
> > Its Just enough to prevent the color WHITE from being produced in the
>mix.
>I
> > shut down, then redid the Wrap on the FBT as Promised. This Time I
>measured
> > the Original Heater was 4.2VAC , and I made enough turns duplicating
>around
> > 3.9-4VAC on the FBT Core gimmick. When I Powered using that, I dont
>really
> > see much a Difference. The Red is still prominent, and reducing the POT
>does
> > not eliminate it totally. Could I have an unsalvagable CRT? Or could a
>Spark
> > Gap or other Component on the CRT PCB cause this? Maybe a bad CRT
>Socket?
> >
> > Also, could perhaps that V.REG IC have damaged other items on the Main
> > Board Like an IC relating to color? Or Could I have a Bad Cap on that
> > causing the problem? The IC does
> > not get as hot with the New Heat Sink, but still quite hot & did not
> > measure the Voltages
> > on it. Everything looks fine, Except there is no White....its pink, even
>the
> > Snow.
> >
> > Willie Hunter Sent me a Print of the CRT PCB - but do not have the
>Chassis
> > Print, nor do I think its in the archives.
> >
> >
> > PS: If it is the CRT, is there a way to "ZAP" that Red Gun somehow to
>try
>to
> > eliminate the Dirt or Junk From it? I rarely get into CRT problems too
>much,
> > so am not sure if junk on a Gun causes that Color to be more prominent?
>I
> > read somewhere along time ago, someone took a 1 Ohm Resistor, and jumped
>I
> > think it to G2 and the suspected Gun some way or another, and was able
>to
> > clear a fault....? The Resistor Opens up , but not before some extra
>juice
> > was able to dislodge the Debris...at least thats how I remember it.
> >
> >
> > Steve Hearns
> > Technotronic Dimensions, NY [USA]
> > WWW.TECHNOTRONIC-DIMENSIONS.COM
> > 1-877-817-9885 (Voice / Fax Toll Free - US Only)
> >
> >
> >
> >
> > ----- Original Message -----
> > From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, March 13, 2004 9:43 AM
> > Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
> >
> >
> > Steve,
> > Try different number of wraps around the fly to achieve the proper
>voltage.
> >
> > Jeff Dougherty
> > Intrepid Video TV/VCR
> > 263 S Front St
> > Steelton PA 17113
> > fax...717-564-4952
> > www.intrepid-video.com www.tech-repair.net
> >
> > ----- Original Message -----
> > From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, March 12, 2004 10:51 PM
> > Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
> >
> >
> > Hi Willie:
> >
> > Yes, I had done that before , and still had a problem with
>the
> > Pix.....although a different one. What threw me off was when I hooked
>the
> > normal Heaters back up, and measured the Voltage on my 4-5 Turns of Wire
>on
> > the FBt core, I had lost it....it was less than 1VAC. Thats when I
>started
> > doubting the Flyback. I guess I will Rewind it again, and measure it. It
>was
> > awfully strange.
> >
> > Steve Hearns
> > Technotronic Dimensions, NY [USA]
> > WWW.TECHNOTRONIC-DIMENSIONS.COM
> > 1-877-817-9885 (Voice / Fax Toll Free - US Only)
> >
> > ----- Original Message -----
> > From: "Willie Hunter" <williehunter2@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, March 12, 2004 9:29 PM
> > Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
> >
> >
> > Nothing is wrong with the G2 Voltage.what you have is a bad
>tube.Isolating
> > the heaters from
> > the circuit and put about 3 or 4 of wire around the flyback core will
>act
>as
> > a booster.
> > but the filament has to be totally disconnected from the rest of the
> > circuit.
> > Willie.
> > Hunter tv
> >
> >
> > >From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
> > >Date: Fri, 12 Mar 2004 21:12:45 -0500
> > >
> > >Hi Bob:
> > >
> > > Thanks for the Tip. I now believe the FBT is for the
>Most
> > >part OK. the Focus becomes sort of "tight" near the final 80-90% of the
> > >Rotation of the Control when turning it, but have seen this before on
>other
> > >Sets, so I think its ok. The Screen seems sort of Weak, as it too
>needs
>to
> > >be near 80-90% of Maximum for it to have a Decent level, but for the
>most
> > >part Acceptable.....unless this is a 'weak' flyback? Would not too the
>HV
> > >be
> > >lower than usual, and could that explain why I have NO white at all? I
>have
> > >no HV Proba (yet) , and I posted in another message my G2 I believe is
> > >394VDC....its the Grey Wire from the Flyback, not the Red Focus wire. I
> > >dont
> > >do too many Repairs on sets which require extensive Voltage
>measurements,
> > >so
> > >excuse me if my references are not correct. I think the Grey is the G2
>but
> > >not sure.
> > >
> > >
> > >Regards,
> > >
> > >Steve Hearns
> > >Technotronic Dimensions, NY [USA]
> > >WWW.TECHNOTRONIC-DIMENSIONS.COM
> > >1-877-817-9885 (Voice / Fax Toll Free - US Only)
> > >
> > >
> > >----- Original Message -----
> > >From: "Bob@Bobs tv" <woodman1@xxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Friday, March 12, 2004 1:41 PM
> > >Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
> > >
> > >
> > >Steve,
> > > There are three pots on the CRT board R-B-G..That module was
>used
> > >on Zenith's L-M line along with the A63/A68 picture tubes that
> > >failed...Another point a bad tube or spark gap in CRT socket can cause
>the
> > >focus/screen controls to fail on the HOT..
>
> > >Bob,
> > >
> > >Bobs TV Worcester, ma
> > >
> > >woodman1@xxxxxxxx
> > >
> > >Main 508-853-1482
> > >Fax 508-853-1480
> > >----- Original Message -----
> > >From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Thursday, March 11, 2004 10:24 PM
> > >Subject: [TechAssist] Re: Wards /Zenith 9-1407 TV Model MWM2553Y
> > >
> > >
> > > > Willie:
> > > >
> > > > I didnt see an option for RED or any color for that matter
>in
> > >the
> > > > menu. I did notice that none of the color controls (IE :TINT) in the
> > >menu
> > > > change the color at all - but the sliders move when you actuate
>them.
> > >Same
> > > > for Brightness.
> > > >
> > > > I rehooked up the Tap from the FBT to the heaters ust to
> > >compare,
> > > > and I had a sort of loud hissing noise like HV escaping somewhere
>near
> > >the
> > > > neck. The Pix looked more out of Focus, so I reattached the normal
> > >heaters
> > >,
> > > > but now my Tap which was putting out like 4.5V, now is putting out
>less
> > >than
> > > > 1 VAC. Could the Flyback have weakened during my test ? I notice Now
>the
> > > > Focus Pot has to be near all the way CW to get decent Focus, and so
>does
> > >the
> > > > Screen Control in order to get a fair Brightness. Flyback is a
>95-4372.
> > > >
> > > > Steve Hearns
> > > > Technotronic Dimensions, NY [USA]
> > > > WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > > 1-877-817-9885 (Voice / Fax Toll Free - US Only)
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Willie Hunter" <williehunter2@xxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Thursday, March 11, 2004 9:45 PM
> > > > Subject: [TechAssist] Re: Fw: Wards Signature 2000 TV Model MWM2553Y
> > > >
> > > >
> > > > Go to setup and adjust the red.
> > > > Willie.
> > > > Hunter TV
> > > >
> > > >
> > > > >From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > > > >Reply-To: techassist@xxxxxxxxxxxxx
> > > > >To: <techassist@xxxxxxxxxxxxx>
> > > > >Subject: [TechAssist] Re: Fw: Wards Signature 2000 TV Model
>MWM2553Y
> > > > >Date: Thu, 11 Mar 2004 21:09:44 -0500
> > > > >
> > > > >Replaced Q5106, and tried wire around FBT core for heater. Retrace
>was
> > > > >gone,
> > > > >color improved, but still Streaky and unbalanced. Found R5110 open.
> > > > >Replaced, took off the heater boost , and put regular Heaters back
>on.
> > > > >Color
> > > > >much better, balanced, no streaks, but too much red....hardly any
>blue
> > >or
> > > > >Green. Replaced other 2 120K resistors for the other 2 Colors like
> > >R5110
> > > > >was
> > > > >for , still have too much red, and hardly any blue or green. Is
>this
>a
> > >Bad
> > > > >CRT ? Any way to determine it without a CRT checker / Rejuvinator?
> > > > >
> > > > >Steve Hearns
> > > > >Technotronic Dimensions, NY [USA]
> > > > >WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > > >1-877-817-9885 (Voice / Fax Toll Free - US Only)
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >----- Original Message -----
> > > > >From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > > > >To: "Tech_Assist.ORG" <techassist@xxxxxxxxxxxxx>
> > > > >Sent: Thursday, March 11, 2004 6:41 PM
> > > > >Subject: [TechAssist] Fw: Wards Signature 2000 TV Model MWM2553Y
> > > > >
> > > > >
> > > > >Just Found a Sticker on the Chassis: 9-1407 and Q5106 Reading 200
>Ohms
> > >E-C
> > > > >Both ways.
> > > > >Going to replace it, and Winstips Says to Isolate the Heaters with
>5
> > >Turns
> > > > >around the FBT core with with 20 Ga. Wire.
> > > > >
> > > > >I see this CRT is commonly bad.
> > > > >
> > > > >Steve Hearns
> > > > >Technotronic Dimensions, NY [USA]
> > > > >WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > > >1-877-817-9885 (Voice / Fax Toll Free - US Only)
> > > > >
> > > > >
> > > > >----- Original Message -----
> > > > >From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > > > >To: <techassist@xxxxxxxxxxxxx>
> > > > >Sent: Thursday, March 11, 2004 6:08 PM
> > > > >Subject: Wards Signature 2000 TV Model MWM2553Y
> > > > >
> > > > >
> > > > >|
> > > > >| Not Sure what chassis this is the Same as? It has a Zenith CRT
> > >A63ADG31X
> > > > >,
> > > > >| with ZENITH Stamped in the rubber FBT Anode Cup. Safe to say its
>a
> > >Zenith
> > > > >| Chassis, but Which? CRT seems to be 25-27 Inches.
> > > > >|
> > > > >| Powers up ok, but Colors are Dim, overall Dim / unbalanced
> > >Colors....as
> > > > >if
> > > > >| the Gamma is missing. IC4121 is getting real hot, and its Clip on
> > >Heat
> > > > >Sink
> > > > >| is loose. Not sure if its related.
> > > > >|
> > > > >| Mfr'd Aug. 1994. Any help appreciated, Thanks.
> > > > >|
> > > > >| Steve Hearns
> > > > >| Technotronic Dimensions, NY [USA]
> > > > >| WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > > >| 1-877-817-9885 (Voice / Fax Toll Free - US Only)
> > > > >|
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
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