[rca2000]

I have fixed MANY of the rca TOB sets( tuner -on-board), and I find them FAR better than Zenith sets, at least the "90 to "98 Zenith sets, with Goldstar crt's. those Zeniths tended to lose crt's at an alarming rate, in as little as 2 years( and that was the RULE, not the EXCEPTION), whwre as I have probaly only seen around 10 of the Rca crt's bad in modern sets(1990-2003), and they will produce a GREAT picture(when they work). I admit ,the TOB was NOT a good idea, but, once that issue is resolved, and the connections in the horizontal driver/flyback area are resolved, one has a GOOD set, that will perform for years.

As for the EEprom programming proceedure, do this::

hold down "menu", and while holding it, hit "power", and then"volume". this will bring the service parameters on the screen. ues the volume buttton to run the number on the right side of the screen to "76". this will access to the adjustment menu. use the channel buttons to go up and down the menu, to adjust the items such as greyscale, geometery, etc. (WARNING!!DO NOT ,REPEAT, NOT ALLOW PARAMETER 1, THE HORIZONTAL AFC, TO FALL BELOW VALUE "11",OR THE SET WILL SHUT DOWN, FROM TOO LOW A HORIZ. FREQUENCY!)It should be "13 or so, until the picture is "almost" in sync.

On the ctc 175,177,187,176,the second through fourth parameters are for h-width, and pincushion(27and up size), 5 and 6 are vertical linearty and height, 7through 9 are crt bias, and 10through 12 are crt drive. 13 is the tuner and agc alignment pass code, but do not go to this, unless you have to. To get to the tuner alignment, use value"77" and then ,one can move on, to 14 to 29, and THEN, to get to parameter 100 -on, use "78" for the pass code(BUT, THIS IS THE ACTUAL TUNER ALIGNMENT, AND SHOULD NOT BE ATTEMPTED, WITH OUT A TAGOO1A ALIGNMENT TOOL, OR A "CHEAT SHEET", LIKE THE ONE PUBLISHED BY ES&T MAGAZINE, A FEW YEARS AGO).

By the way, many EEproms are out there,from sources like Dalbani and MCM , with the tuner values pre-programmed( works in 95% of cases), and this makes repair EASY.

Hope this helps someone.