[TechAssist] Re: Samsung TV - TXE2749 - KCT52A - EPROM Question (FIXED)
- From: <agower@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 4 Apr 2005 21:09:10 -0700
I have 2 of the ESR units that you are talking about will sell both of them
name your price!!
agower@xxxxxxxxxxxxx
Cordova TV
Adolph Gower
3415 Comet Court
Sacramento, Ca. 95827-2924
Phone: (916) 698-6565
Fax: (916) 363-8359
----- Original Message -----
From: "J. Knoll" <jaystv@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: 2005Äê4ÔÂ4ÈÕ 16:48
Subject: [TechAssist] Re: Samsung TV - TXE2749 - KCT52A - EPROM Question
(FIXED)
> Jonas,
> Did your esr meter fail? What kind of esr meter do you use? I have
> found testing the value of an electrolytic is less important than
> testing for esr. I have an old analog esr meter made by a company that
> has been out of business now for years, Creative Electronics out of
> Michigan. If I had known they were going to close down I would have
> bought another from them. They were very well made units. I have seen
> some of the newer ones and am not impressed with the quality.
> --
> Jay Knoll TechAssist Monitor
> TechAssist
> 225 Monticello Ave.
> Clarksburg WV, 26301
> www.tech-assist.org www.techassist.net
> -------------------------------------------------------
> PS:
> If replying to this email, please include all previous correspondence.
> It is the only way we can get the full picture. Thank You!!!
>
> On Apr 4, 2005 7:35 PM, jonas miglinas <miglinasj@xxxxxxxxxxx> wrote:
>> Hello David,
>>
>> I read again your original thread, and saw that Eric Manuel suggested to
>> replace C816 1000uf/25v (thanks Eric). I replaced it and VOILA, set fired
>> up. I had esr'd it originally and it was ok, the value was at 945 and I
>> thought it was close enough. So I dusted off my Sprague Tel-Ohmike and
>> checked it under a load, and sure enough, it craps out at about 10.5v. I
>> replaced all the original ic's back into the set and has been running as
>> it
>> should for three hours now.
>> I saw that you had changed that cap also, may want to check it again. If
>> still no 12v, unsolder pin 1 of IC 853 and see if the 12v comes up. I
>> found
>> originally a 100uf/16v(that is tied inton this IC) down to about 40uf
>> (damn,
>> I don't remember the location #, but it's in front of IC 853). Let me
>> know
>> if you need the location #.
>>
>> Jonas Miglinas
>> Miglinas TV
>> Chicago
>> ----- Original Message -----
>> From: "jonas miglinas" <miglinasj@xxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Sunday, April 03, 2005 3:10 PM
>> Subject: [TechAssist] Re: Samsung TV - TXE2749 - KCT52A - EPROM Question
>>
>> > Hello David,
>> >
>> > I am experiencing the exact same problem. No start because the 12v and
>> > 5v
>> > supplies are missing. Have changed IC 852 and HC 802?(not at the office
>> and
>> > not sure of the numbers). When I take out either one of these the 12v
>> comes
>> > back. Decided to check the micro, and saw the VDD at .6v at standby.
>> > Unsoldered, and the 5v came up. I have a spare chassis I saved that
>> > came
>> > with a brocken crt and board, and swapped out the the micro. Set came
>> > on
>> at
>> > once and I thought I had it. I turned the set off and on about 5-6
>> > times,
>> > unplugged it, yep you guessed it, same thing.
>> > Worked on this set about three hours saturday without a schematic and
>> > decided to search the Tech Assist archives when I ran across your
>> > thread.
>> I
>> > have to exchange a couple of Thomson HD sets tomorrow(crt's not
>> > available)
>> > so I won't be able to attack this set till Tuesday.
>> > Of course I'll let you know what I find.
>> > Client doesn't want to spend more than $100 so I won't spend too much
>> > more
>> > time, unless this gets my goat.
>> > Maybe there is somethig in Winstips for this model, or these models
>> > which
>> > should be close:
>> > TXE2545
>> > TXE2546
>> > TXE2549
>> > TXE2745
>> > TXE2746
>> >
>> > Jonas Miglinas
>> > Miglinas TV
>> > Chicago
>> >
>> > ----- Original Message -----
>> > From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
>> > To: <techassist@xxxxxxxxxxxxx>
>> > Sent: Sunday, April 03, 2005 11:28 AM
>> > Subject: [TechAssist] Re: Samsung TV - TXE2749 - KCT52A - EPROM
>> > Question
>> >
>> >
>> > > Jonas,
>> > >
>> > > Are you experiencing the same problem I am with this TV? Please let
>> > > me
>> > > know, perhaps between the two of us we can figure this out!
>> > >
>> > > David Lessard
>> > > Mr_fixit@xxxxxxxxxxxx
>> > > Alexandria, Ontario, Canada
>> > >
>> > > -----Original Message-----
>> > > From: techassist-bounce@xxxxxxxxxxxxx
>> > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Eric Manuel
>> > > Sent: Sunday, April 03, 2005 9:39 AM
>> > > To: techassist@xxxxxxxxxxxxx
>> > > Subject: [TechAssist] Re: Samsung TV - TXE2749 - KCT52A - EPROM
>> > > Question
>> > >
>> > > Hi Jonas put an eeprom from a rca set then plug the tv in leave it
>> > > for 3
>> > >
>> > > or 4 minutes to give the micro time to write the eeprom.Works for
>> > > me..Eric
>> > >
>> > >
>> > > Eric
>> > > E M Electronics
>> > > Deer Lake Nfld
>> > > Canada
>> > > tvman@xxxxxxxxxxxxxxx
>> > >
>> > > jonas miglinas wrote:
>> > > > Hello David,
>> > > >
>> > > > Did the eeprom switch work? I just came across the same model as
>> > > > yours
>> > > and
>> > > > was wondering if you gave up on it?
>> > > >
>> > > > Jonas Miglinas
>> > > > Miglinas TV
>> > > > Chicago
>> > > > ----- Original Message -----
>> > > > From: "Eric Manuel" <tvman@xxxxxxxxxxxxxxx>
>> > > > To: <techassist@xxxxxxxxxxxxx>
>> > > > Sent: Tuesday, March 29, 2005 7:42 AM
>> > > > Subject: [TechAssist] Re: Samsung TV - TXE2749 - KCT52A - EPROM
>> > > Question
>> > > >
>> > > >
>> > > >
>> > > >>Hi David you can put in an Eeprom from a rca tv and it should work
>> > > >>as
>> > > >>long as the micro is ok.All the samsung eeprom I
>> > > >>seen was blank as the settings are stored in the micro
>> > > >>
>> > > >>
>> > > >> Eric
>> > > >>E M Electronics
>> > > >>Deer Lake Nfld
>> > > >>Canada
>> > > >>tvman@xxxxxxxxxxxxxxx
>> > > >>
>> > > >>David wrote:
>> > > >>
>> > > >>>What are the symptoms of a defective EEPROM on this chassis? No
>> > > startup?
>> > > >>>With the EPROM removed should I see mirco data activity?
>> > > >>>
>> > > >>>David Lessard
>> > > >>>Mr_fixit@xxxxxxxxxxxx
>> > > >>>Alexandria, Ontario, Canada
>> > > >>>
>> > > >>>
>> > > >>
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