[TechAssist] Re: 46" LXI, M#54460 (Philips) mfg.3/88--DEAD

Daryl,

That old set is loaded with problems.  When I worked for Sears, both
boards would be replaced.  Not bad when they were $75 each.  Then, all of
a sudden, they were $150 each.  Who knows what they want now?  They were
notorious for bad connections that take out the HOT and Q10 on the power
supply module.  Also, have found bad flybacks, which NAP will not sell. 
Must buy board.

We quit taking those old dogs in a couple years ago.  Worth a shot if a
lot of resoldering and a few parts restores it, providing the customer is
willing to pay the piper.  Then again, they are noted for fluid
contamination in the crt's, especially the blue and green tubes.  Examine
them before you go further.  If bad fluid, give the set back.


Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL  32563
850-934-8324 (Voice) 850-932-0819 (Fax)


On Thu, 29 Aug 2002 18:01:02 -0600 "D Thunhurst" <dthunhurst@xxxxxxx>
writes:
> 
> Hi,
> I have and oldie that is giving me some problems due to the lack of
> familiarity. It is labeled LXI and built by Philips 3/88.
> Found fuse open and Q10 on power supply module 705442-3 shorted.  I 
> also
> found Q10 on deflection module shorted.  I resoldered the usual poor
> connections (including the ones that are black under the solder).  
> Esr'd the
> electro's, checked the low value resistors and diodes.  Found 
> nothing else
> bad.  I tried firing the set up by using a light bulb in place of 
> the fuse
> but it would only cause the bulb to flash once and turn off.  I know 
> that
> some of the SMPS's don't work when using that method, so I put a 
> breaker
> instead. Instant trip.... so I'm sure something is drawing too much 
> current.
> It just will not stay on long enough to get any voltage readings.  I 
> checked
> all of the supply lines for shorts but didn't find any.  I know some 
> of
> those early Philips sets were noted for bad flybacks but I don't 
> think this
> one is bad as the horiz. output transistor is good.
> I tried powering up the set with the divider disconnected, also 
> later tried
> the tubes and yokes undone, as well as disabling the audio circuit.  
> All no
> help.
> At last check over on everything again, the Q10's are still good and 
> I am no
> further along on this beast as I was a few days ago.
> Any help or suggestions greatly appreciated.
> Daryl
> Daryl's TV
> 3310 Dyer St.
> El Paso, TX 79930
> 915-565-9184
> 915-564-1024 Fax
> http://dynacomp.freeyellow.com
> 
> ------------------------------------------
> To REMOVE your email address, click here:
>   http://www.tech-assist.org/unsubb.html
> To CHANGE your email address, click here:
>   http://www.tech-assist.org/change.html
> ------------------------------------------
> ***NEW*** Tips Added Instantly!!!***
> Submit Repair Tips here: 
> http://www.tech-assist.org/secure/tip/
> 


________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/web/.
------------------------------------------
To REMOVE your email address, click here:
  http://www.tech-assist.org/unsubb.html
To CHANGE your email address, click here:
  http://www.tech-assist.org/change.html
------------------------------------------
***NEW*** Tips Added Instantly!!!***
Submit Repair Tips here: 
http://www.tech-assist.org/secure/tip/

Other related posts: