On 03 Mar 2004 23:19:42 GMT, (John Del) wrote:

Subject: STK392-180 data, replacement for STK392-110
From: "Leonard G. Caillouet"
.......and have been
told by more than one tech that the STK392-180 is a superior replacement for
the -110 original.

While I don't have the data sheet myself, a supplier I use does have them, and
he's said the 180 is heavier. FWIW, I've used the 180s in place of the 110s
often and they run cool with no problems whatsoever.

I wondered where the -040 fits in? This is used in JVC projectors.
Samsung of newer projectors are using totally on the convergence ICs
to do centering not just convergence since yokes doesn't have
centering rings.

I fixed few of Samsung projector including one with short lap solder
that came apart in blue convergence vertical coil, frying the pair of
resistors across vertical output and owner didn't bring it in, thought
it was part of tv. !?! Original manufacture mistake. Other three
soldered connections between windings & wires were twisted together
properly and sleeved with heatshrink tubing. Left them floating
inside the black yoke shroud. Secured wires hot glue to prevent
stress on the convergence yoke wires.

Samsung latest convergence yoke is silly simple. A ferrite tube with
four sectors of one layer of thick windings (appox 20 turns each), no
centering rings. No wonder those two STK-392-110 ran HOT & baking the
heatsink white stuff rock hard in 6 months.

Cheers,

Wizard



John Del
Wolcott, CT