[TechAssist] Re: "fix" update: tuner? philips/ Mag TS2754, 27B800-7562 shuts down, no vert. IC500...]

  • From: "Adolph Gower" <agower@xxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sat, 21 Dec 2002 17:27:01 -0800

Remote Number Is G96SVC , 4835 219 17656,
Adolph Gower
Cordova TV
10275 Old Placerville Rd. #5
Sacramento, Ca. 95827
Source for good used parts.
Ph. (916) 363-6565
Fax (916) 363-7623
----- Original Message -----
From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, December 21, 2002 5:49 AM
Subject: [TechAssist] Re: "fix" update: tuner? philips/ Mag TS2754,
27B800-7562 shuts down, no vert. IC500...]


>
> I have the "service remote". I don't have the customer remote with the
> "smart" button.
> The remote I have is the service remote needed for hotel sets.On my
> service remote there is no such button.
> Phil Bader
>
> Adolph Gower wrote:
> >
> > You must have service remote to save your changes.
> > Adolph Gower
> > Cordova TV
> > 10275 Old Placerville Rd. #5
> > Sacramento, Ca. 95827
> > Source for good used parts.
> > Ph. (916) 363-6565
> > Fax (916) 363-7623
> > ----- Original Message -----
> > From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, December 20, 2002 2:41 PM
> > Subject: [TechAssist] Re: "fix" update: tuner? philips/ Mag TS2754,
> > 27B800-7562 shuts down, no vert. IC500...]
> >
> > >
> > > Entered service mode, copied down all values I found.i did the
"default
> > > to factory settings". This restored my tuner operation.The vert height
> > > was narrow and v. centering needed adjusting. Did that Trouble is,
they
> > > say to save that page values press "smart" on the remote. I only have
> > > the master remote that has no "smart" button. Is there an equiv.
button
> > > I can save this with? Seems after I doo all this even pulling power
> > > (supposedly this saves data) it comes on with the narrow vert hgt
again,
> > > unsaved.I re read all the info on the disc.help...
> > > Phil Bader
> > >
> > > Philip Bader wrote:
> > > >
> > > > see thread below: was shutting down,fixed vert,now no tuner op.
> > > >
> > > > Unsolderd the eeprom chip IC346, powered the set up, and it now
works
> > > > OK. Note the vertical is a bit narrow, and probably several other
> > > > parameters wrong, as the set is working without an EEPROM, so is
working
> > > > under "default" settings.At least I know I must reinitialise, or at
> > > > worst replace the eeprom.Is it possible, and wise to reinstall the
> > > > old,and enter service mode to record the orig. settings for when I
wipe
> > > > out  the chip to start over?
> > > > Phil Bader
> > > >
> > > >  Friday, December 20, 2002 11:47 AM
> > > > update: tuner? philips/ Mag TS2754, 27B800-7562 shuts
> > > > > > down, no vert. IC500...
> > > > > >
> > > > > > I replaced IC500 (TDA9302H), D409 (483513037094, NTE580) and
> > resistor
> > > > > > R420 (1 ohm). This restored vertical and stopped shut down. Now,
the
> > > > > > tuning is off frequency.I select ststions and may hear a bit of
the
> > > > > > audio but sound and pix if off tune. I do have my +33V, +5 and
all
> > other
> > > > > > voltages to tuner (I have the force disc).SCL and SDA have pulse
> > > > > > activity.
> > > > > > Of course I suspect tuner, but any history on this chassis for
this
> > > > > > tuning defect?
> > > > > > Phil Bader
> > > > > >
> > > > > > Philip Bader wrote:
> > > > > > >
> > > > > > > The usual IC500 solder breaks on pins destroy IC500 (TDA9302H)
and
> > Vcc
> > > > > > > resistor to fly R420. What exactly is R420 value? 1 or 10
ohms??
> > > > > > > Phil Bader
> > > > > > > --
> > > >
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> > > --
> > > 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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> --
> 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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>


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