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-   -   Toshiba TP50H15 Dead (https://www.diybanter.com/electronics-repair/38463-re-toshiba-tp50h15-dead.html)

David September 12th 03 10:35 PM

Toshiba TP50H15 Dead
 
Lots of protect circuit possibilities. Troubleshoot them one at a
time.
Do a Goole Groups Archive search at this newsgroup for "Toshiba
shutdown", "Toshiba RPTV", etc as many older Toshiba RPTV hints and
tips on the most common shutdown problems have been posted some time
ago (about 3 to 4 years ago).

Back when I had access to the shop where I worked hints and tips I
posted several tricks here.

David

"Fishhead" wrote in message ...
Toshiba RPTV Dead. Power Light Blinks But Set Won'T Fully Power Up.The set
acts like its going to powerup, then clicks off.Replaced convergence amps
(Stk392-110). No help. I did find a possible open winding in T862.Any other
ideas??Thank for any


Fishhead September 17th 03 09:52 PM

Toshiba TP50H15 Dead
 
Thanks for the helpful tips!
It ended up being the convergence amps. When I reassembled the unit, I
forgot a plug. **DOH!!** The set works great now!!
Brad
"David" wrote in message
om ...
The set is in protect shutdown and you need to take special precautions
prior to attempting the troubleshooting of the failure.
Things I have seen cause this failu
1. Corrupted eeprom data. ******
2. lock up on clock or data lines, especially in the tuner.
3. blown audio output ic
4. failure on the dpc circuit board, increased resistor value or pin
circuit problem. ****
5. convergence output failure *****
6. digital convergence module failure, for those with it, also d/a
converter failure on those without the full module
7. shorted yoke windings ******
8. arcing high voltage cap ******
9. high voltage splitter
10. failed picture tube, shorted ****
11. vertical output ic failure *****
12. high voltage regulator op-amp
13. switch mode power supply regulation failure
14. flyback
The ones with the extra stars are the failures I see more often than the
others.
David

"Fishhead" wrote in message

...
Toshiba RPTV Dead. Power Light Blinks But Set Won'T Fully Power Up.The

set
acts like its going to powerup, then clicks off.Replaced convergence

amps
(Stk392-110). No help. I did find a possible open winding in T862.Any

other
ideas??Thank for any






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