Samsung TXK2550 - No OSD (menu, vol, ch) ----- Need help!

[Tyrone Park]

I have a TXK2550 that has no OSD for menu, volume or channel change.
Tryed changing eeprom, micro, and video/deflection ic, with the same
symptom. Any help is greatly appreciated. Thanks in advance!

TP

 

[David]

Try troubleshooting rather than parts guesses.

Does the micro have everything it needs? hsync,vsync, 60hz ac clock,
good reset, no problems on any clock or data lines?

Is the osd being generated by the micro or being lost at the jungle
ic?

David

 

[Shoreline Electronics]

Check your C903 Trimmer

--
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
[email protected]
==========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd

 

[Tyrone Park]

I don't see a C903, you must have gotten this unit mixed with another!
What part of the circuit should I be looking in?
TP