[TechAssist] Re: Schematic need for Magnovox 32G700-7585 TP3284C101shutsdown after about 1 hour
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 16 Apr 2004 08:55:02 -0400
I had several of these chassis that several of the flyback pins actually =
seperated from the pads underneath the solder glob. It was undetectable=20
to the eye.I unsoldered all the fly pins, and then I saw on two=20
pins(positioned towards the rear of chassis) the pads were broken away=20
from their traces and floating!. Scraped the traces and soldered wire=20
from trace over and wrapped around the fly pin and soldered. Cured my=20
intermittant. Seems to be a common issue with these.
Phil Bader
Adolph Gower wrote:
>In the past I found on Philips chassis Horizontal driver transformer
>connection at the top were bad, I had overlooked re-soldering the top
>connectors.This was found after 5 trips to customers home.
>Adolph Gower
>Cordova TV
>10275 Old Placerville Rd. Suite 5
>Sacramento, Ca. ZIP 95827
>E-mail agower@xxxxxxxxxxxxxxxxxx
>Phone (916) 363-6565
>Fax (916) 363-7623
>Phone (916) 363-6565
>Fax (916) 363-7623
>E-mail agower@xxxxxxxxxxxxxxxxxx
>Large assortment of used parts
>----- Original Message -----=20
>From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: 2004=C4=EA4=D4=C215=C8=D5 12:36
>Subject: [TechAssist] Schematic need for Magnovox 32G700-7585 TP3284C101=
>shutsdown after about 1 hour
>
>
> =20
>
>>Need a schematic for the G7 chassis .
>>Model is Magnovox TP3284C101
>>Chassis is 32G700 Philips manual 7585
>>
>>Have tried flyback (LOT), diodes menitioned below and vert out IC. All =
to
>> =20
>>
>no
> =20
>
>>effect.
>>On time is somewhat random ranging from about a mininute to over 2 hour=
s,
>>any futher help is appriciated
>>
>>Peter Oliver
>>Tucson Radio TV
>>
>>
>>From: "John at Main TV" <maintv2004@xxxxxxxxxxx>
>>Reply-To: techassist@xxxxxxxxxxxxx
>>To: <techassist@xxxxxxxxxxxxx>
>>Subject: [TechAssist] Re: Magnovox 32G700-7585 TP3284C101 shutsdown aft=
er
>>about 1 hour
>>Date: Sat, 10 Apr 2004 10:56:50 -0600
>>
>>If it shuts down for no good reason I would reset the screen contol. T=
hat
>>is a critical setting for some reason. Turn it up until retrace and th=
e
>>back it off just enough to clear the picture. If that's not it I woul=
d
>>change zener diodes 6631 (BZX79-B18 or 9331-669-30133) and 6638 (BZX79-=
B10
>>or 9331-668-70133). I have heard it said Philips never learned how to
>> =20
>>
>make
> =20
>
>>a reliable zener diode. There is also a shutdown line for loss of
>> =20
>>
>vertical
> =20
>
>>deflection. I think you could see it drop down to a line before going =
off
>>if that was the problem. Let us know what you find. John.
>>
>>John Mielke
>>Main TV
>>636 main St.
>>Longmont, Co
>>phone 303 776 6955
>>fax 303 776 0792
>>maintv2004@xxxxxxxxxxx
>>----- Original Message -----
>>From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Saturday, April 10, 2004 9:18 AM
>>Subject: [TechAssist] Magnovox 32G700-7585 TP3284C101 shutsdown after
>> =20
>>
>about
> =20
>
>>1 hour
>>
>>
>> > Well got this beast back on the bench customer left it after the
>> =20
>>
>estimate
> =20
>
>>so
>> > took a while to get back to it. Ordered the flyback but still acts t=
he
>>same.
>> > Initially it will run 1-2 hours (sometimes only 10 mins) then will t=
urn
>>off,
>> > no blinking led. It can be turned back on simply by pressing power a=
nd
>>will
>> > run between 5 min and an hour +. Haven't found any indication, have
>> > resoldered most major componets, Any more ideas. (this chassis is
>> =20
>>
>almost
> =20
>
>> > identical to the D7 chassis)
>> >
>> > Peter Oliver
>> > Tucson Radio TV
>> >
>> > [TechAssist] Re: Magnovox 32G700-7585 TP3284C101 shutsdown after ~ 1=
>> =20
>>
>hour
> =20
>
>> > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
>> > To: techassist@xxxxxxxxxxxxx
>> > Date: Thu, 11 Mar 2004 19:11:38 +0000
>> > I guess I may have to order one as soldering everthing doesn't help
>> > (assuming the estimate is aproved). Would like it to be a bit more
>> > difinitive. runs anywhare from 10 min to 1 hour before sutting down
>>usually
>> > an hour.
>> >
>> > Peter Oliver
>> > Tucson Radio TV
>> >
>> >
>> > From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
>> > Reply-To: techassist@xxxxxxxxxxxxx
>> > To: <techassist@xxxxxxxxxxxxx>
>> > Subject: [TechAssist] Re: Magnovox 32G700-7585 TP3284C101 shutsdown
>> =20
>>
>after
> =20
>
>>~
>> > 1 hour
>> > Date: Wed, 10 Mar 2004 18:18:48 -0500
>> >
>> > Peter,
>> > From Tech Repair CD:
>> > Philips\TA3284C101 31G700\Press the power button* the set comes on =
for
>> =20
>>
>a
> =20
>
>> > second *then it shuts off. High
>> > voltage comes up to 32K. B+ at 130 V. Vertical output checks
>> > good.\\\31G700\Replace FBT P/N:3128 1382
>> > 0623 cost $16.50 form Tritronics\\\\\\\\
>> >
>> > 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: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
>> > To: <techassist@xxxxxxxxxxxxx>
>> > Sent: Wednesday, March 10, 2004 2:33 PM
>> > Subject: [TechAssist] Magnovox 32G700-7585 TP3284C101 shutsdown afte=
r ~
>> =20
>>
>1
> =20
>
>> > hour
>> >
>> >
>> > Magnovox
>> > TP3284C101
>> > 32G700-7585
>> >
>> >
>> > Set will run about an hour then shutdown can be restared=
by
>> > pushing power (without unplugging) I have seen a few have had runins=
>> =20
>>
>with
> =20
>
>> > this set, does not appear to be a connection. Have started checing H=
V
>>caps
>> > but no luck yet, did see a note in the archinves about bad Flybacks =
but
>> =20
>>
>?
> =20
>
>> > ..... any one had any luck or ideas?
>> >
>> > Peter Oliver
>> > Tucson Radio TV
>> >
>> > _________________________________________________________________
>> > Tax headache? MSN Money provides relief with tax tips, tools, IRS fo=
rms
>>and
>> > more! http://moneycentral.msn.com/tax/workshop/welcome.asp
>> >
>> >
>> >
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--=20
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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