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

  • From: Philip Bader <tjanphyl@xxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Sat, 21 Dec 2002 08:49:06 -0500

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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