[TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA picture distorting
- From: "Shaun" <satguy@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 28 Sep 2005 16:16:58 -0600
Dag is connected, I found now that Q661 ABL transistor according to my sams
says the base should be 17.0 vdc my set measures between 2-4 volts dc. I
replaced Q661 but no change. I have 18 vdc on the other side of D661 and 26
vdc from the 26 volt source this set is driving me crazy.
Shaun
Advanced Electronics
224 West Riverview Ave.
Fort Morgan, CO 80701
----- Original Message -----
From: <daryls_tv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, September 28, 2005 3:32 PM
Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA picture
distorting
> Shaun,
> I don't know if this is the same as your set but I had a strange symptom
si=
> milar to yours that turned out to be the ground connector from the CRT dag
=
> was not connected to the proper place. The connector it goes to is just
in=
> front of the flyback as you are looking from the back. Usually it is a
si=
> ngle white wire but I have seen them in black as well. I think it is in
the=
> ABL circuit.
> HTH
> Daryl
> Daryl's TV
> 2402 Wyoming Ave.
> El Paso, TX 79903
> 915-565-9184 Voice/Fax
> daryls_tv@xxxxxxx
> www.angelfire.com/tv2/daryls_tv
> ----- Original Message -----
> From: Shaun <satguy@xxxxxxxxxxxxx>
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA picture
d=
> istorting
> Date: Wed, 28 Sep 2005 15:16:46 -0600
>
> >=20
> > I am still in the dark on this dog. I replaced C431, C432, IC430, Q400,
> > C432, C431, Q530, Z530, Z405 and the picture still jumps around wiggles
a=
> nd
> > really freaks out when the screen has a white background. I noticed that
=
> the
> > 130 volt line is down to 125 volts but the most noticeable voltage that
is
> > off is Q530 the collector is 2.1 vdc and should be POINT 2 volts that's
.=
> 2.
> > When I turn down the ac to the set this voltage goes down to about .3
and
> > the picture stops shacking I really don't know where else to look. HELP
> >=20
> > Shaun
> >=20
> > Advanced Electronics
> > 224 West Riverview Ave.
> > Fort Morgan, CO 80701
> > ----- Original Message -----
> > From: "John Conti" <contitv@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, September 01, 2005 8:58 AM
> > Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA
picture
> > distorting
> >=20
> >=20
> > > Shaun, are your still working on the cs4535a101. If so did you replace
=
> the
> > > main filter c405 (470/200v) and also check r433 (270k) and r432 (1000
> > > ohm).And c432 should not be getting hot.
> > > Let me know how you came out. Also next to c432 make sure those two
lar=
> ge
> > > resistors are solder good they get hot and solder becomes bad. also
make
> > > sure there value has not changed.
> > >
> > > John
> > > Conti,sTV
> > > Texas
> > >
> > >
> > >
> > >
> > > >From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > >Reply-To: techassist@xxxxxxxxxxxxx
> > > >To: <techassist@xxxxxxxxxxxxx>
> > > >Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA
pict=
> ure
> > > >distorting
> > > >Date: Tue, 30 Aug 2005 17:28:15 -0600
> > > >
> > > >Still working on this dog getting no where, I notice the horz tearing
=
> and
> > > >picture bouncing especially when on the news when the weather boxes
are
> > up
> > > >with the numbers and temps on the screen. Only time I see a
difference=
> in
> > > >is
> > > >when I freeze mist Q510 or in that area but I have checked everything
=
> in
> > > >that area anyway back to the bench.
> > > >
> > > >Shaun
> > > >
> > > >Advanced Electronics
> > > >224 West Riverview Ave.
> > > >Fort Morgan, CO 80701
> > > >----- Original Message -----
> > > >From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > >To: <techassist@xxxxxxxxxxxxx>
> > > >Sent: Tuesday, August 30, 2005 11:38 AM
> > > >Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA
pict=
> ure
> > > >distorting
> > > >
> > > >
> > > > > I replaced C431, but C432 still runs hot to the touch does anyone
k=
> now
> > > >if
> > > > > this is normal in this set?
> > > > > I think after C432 heats up that's when the picture goes bad but I
> > have
> > > > > replaced IC430, Q400, C432, C431 and still C432 gets too hot in my
> > > >opinion.
> > > > > I scoped the emitter of Q400 and it is 130 volts DC with 1.5 v p-p
=
> all
> > > >the
> > > > > other voltages near the regulator are good. Can anyone help with
th=
> is
> > > >dog?
> > > > >
> > > > > Shaun
> > > > >
> > > > > Advanced Electronics
> > > > > 224 West Riverview Ave.
> > > > > Fort Morgan, CO 80701
> > > > > ----- Original Message -----
> > > > > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Tuesday, August 30, 2005 9:49 AM
> > > > > Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis 25S104-00AA
> > > >picture
> > > > > distorting
> > > > >
> > > > >
> > > > > > Replace C431 as well (3.3mfd/200V).
> > > > > >
> > > > > > Bob Waterman, CET=AE #RI-28
> > > > > > Master Technician License #9109
> > > > > > Service Manager / Parts Manager
> > > > > > Gemini Computer, TV, & Security Alarms
> > > > > > (508)695-7302
> > > > > > (508)695-7769 FAX
> > > > > > geminitv@xxxxxxxxxxx
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Lindsey Altman" <athomeservice@xxxxxxxxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Tuesday, August 30, 2005 11:45 AM
> > > > > > Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis
25S104-00AA
> > > >picture
> > > > > > distorting
> > > > > >
> > > > > >
> > > > > > Hi Shaun,
> > > > > >
> > > > > > If it has a PIP module there are caps under the top most
boa=
> rd
> > in
> > > >=3D
> > > > > > it
> > > > > > that you should replace. They are all 100uf if memory serves me
> > right.
> > > > > >
> > > > > > HTH,
> > > > > > Lindsey
> > > > > >
> > > > > > Lindsey Altman
> > > > > > At Home Service Company
> > > > > > 440 Cedar Ave.
> > > > > > Claxton, Georgia 30417
> > > > > > 912-739-1019
> > > > > > athomeservice@xxxxxxxxxxxxx
> > > > > >
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: techassist-bounce@xxxxxxxxxxxxx
> > > > > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Shaun
> > > > > > Sent: Monday, August 29, 2005 10:33 PM
> > > > > > To: techassist@xxxxxxxxxxxxx
> > > > > > Subject: [TechAssist] Re: Magnavox CS4535A101 Chassis
25S104-00AA=
> =3D
> > > > > > picture
> > > > > > distorting
> > > > > >
> > > > > > Something I just noticed C432 (100 mfd 200 Volt) is getting
fairly
> > > >warm
> > > >=3D
> > > > > > so I
> > > > > > replaced with another new one and that one is getting pretty
warm
> > > >also.
> > > >=3D
> > > > > > I
> > > > > > also replaced the regulator STR30130 and still no help.
> > > > > >
> > > > > > Shaun
> > > > > >
> > > > > > Advanced Electronics
> > > > > > 224 West Riverview Ave.
> > > > > > Fort Morgan, CO 80701
> > > > > > ----- Original Message -----=3D20
> > > > > > From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > > > > To: "tech" <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Monday, August 29, 2005 7:25 PM
> > > > > > Subject: [TechAssist] Magnavox CS4535A101 Chassis 25S104-00AA
> > picture
> > > > > > distorting
> > > > > >
> > > > > >
> > > > > > > This set has a strange picture wiggle only on the left side
and
> > only
> > > >=3D
> > > > > > after
> > > > > > > it warms up and usually only with a bright screen or words on
t=
> he
> > =3D
> > > > > > screen.
> > > > > > I
> > > > > > > replaced the C432 100 mfd 200 volt and I replace Q510 because
w=
> hen
> > =3D
> > > > > > heated
> > > > > > it
> > > > > > > caused the picture to distort. No help so I am assuming it is
=
> =3D
> > > > > > something
> > > > > > near
> > > > > > > Q510. Has anyone seen this before?
> > > > > > >
> > > > > > > Shaun
> > > > > > >
> > > > > > > Advanced Electronics
> > > > > > > 224 West Riverview Ave.
> > > > > > > Fort Morgan, CO 80701
> > > > > > >
> > > > > > > =3D
> > > > >
> > > > >
> > >
> >
> -----------------------------------------------------------------------=
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