Re: Help needed for my Philips monitor

["Michael J. Mahon" <mjmahon@aol.com>]

Toinet wrote:
> Hello gurus,
>
> I bought a IIe with several interesting cards (chat mauve, MS soft
> card, Apple mouse and disk interfaces, printer interface), a HP
> printer, tons of disks, two DIsk II drives and one Philips monitor PCT
> 1201.
>
> The IIe connected to the SCART input of my TV works well and displays
> everything correctly. I then tried the RCA output to the Philips
> monitor and I have nothing but a thin central line. See
> http://www.brutal-deluxe.fr/public/Philips/PHILIPS.JPG (a big file of
> 1.8 MB which displays APPLE ][ or sort-of)
>
> Do you have any ideas of what I can do? As I won't be the screwdriver-
> man-of-the-year, if the work involves replacement of components, then
> it will be thrown away. If that involves opening the case and set
> several potentiometers, then I'll give a try.

The vertical deflection is not working on the monitor.

Sometimes there is a plug on the deflection yoke cable, and this
could simply be a poor contact--unplugging and replugging the
connector will usually fix this.

If there is no connector, or wiggling it doesn't fix it (even
momentarily), then it is likely that the vertical output transistor
has failed (or some other component in that circuit, but I'm guessing
that you wouldn't want to explore that possibility).

An old-style TV repair shop (if you can find one) could fix it pretty
easily.

-michael

NadaNet and AppleCrate II: parallel computing for Apple II computers!
Home page: http://home.comcast.net/~mjmahon

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