User`s guide

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From: Rubywand

011- How do I adjust Focus and Intensity on a blurry GS

RGB Monitor?

These adjustments may also help cure display "bowing", etc..

Intensity and Focus controls are on the High Votage Module (black module

near back of circuit board) inside the case.

Follow procedure outlined earlier for safety (e.g. unplug, wait, wear

goggles, ...) and removing the case.

Note the position of the two controls on the HV Module (at the left, back).

Mark the back of the cover where handy access hole should be. Take the case

cover to another area (i.e. away from the exposed CRT neck). Remove the control

assembly from the right side of the case.

Using a Dremel tool, hole saw, ... cut an approx. 1" diameter hole in the

back of the case. Use this opportunity to give the case interior a good

cleaning. (If you wash it, be very sure it's dry before continuing.)

Reinstall the control assembly.

Put everything back.

Reconnect cable and AC cord. Turn on the computer & monitor. Let it sit 10-

20 minutes. Use the normal side of case controls to get the brightest, 'decent-

focus' picture you can obtain.

Using a plastic TV technician's tool (and flashlight if necessary) adjust

the Intensity and Focus controls (through the hole in back) on the HV module to

get a good looking display.

Work back and forth between the back and side controls. What you're aiming

for is a display with good brightness and sharp focus when the side controls are

near their middle positions.

Cover the back hole using a piece of duct tape, a large sticker, etc.. (The

opening is a potential shock hazard, especially if the monitor is within reach

of children.)

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From: "John F. Reeves" and Sam Goldwasser

012- I need to replace the High Voltage "flyback" power

transistor in my Applecolor monitor. The part bears no

manufacturer's mark, just two lines of text:

D1650