Table of Contents
Advertisement
4.
Move the wing nut in the slot of the uncovered Lens to locate
the optimum optical focus point (viewing the picture from the
back side of the screen), re-tighten the wing nut.
5.
Repeat steps 2 through 4 for the 2 other Output Lenses.
Screen (G2)
Adjustment
Procedure
Control
Preset Positions
1.
Picture, Sharpness,
Brightness,
and lqnt set to mid-range.
2.
Color setting at minimum.
3.
Tune the set to unused input (AUX-1 with nothing connected
is good).
4.
Turn
all G2 Controls
(Bottom
Row
on the
Focus/G2
Distribution
Block) to minimum (fully CCW).
5.
Set the Hi-Lite Controls
(on the Signal/Deflection
Module) to
their full clockwise
positions.
6.
Set the
Lo-Lite
Controls
(also
on the Signal/Deflection
Module) to their full counter-clockwise
positions.
7.
Connect
a DC Voltmeter
to the cathode
of the Green CRT
(Pin 8 of the CRT Socket or either end of R210).
8.
Adjust the Sub-Brightness
Control
(R776) to obtain a read-
ing of 195Vdc on the meter.
9.
Remove the DC voltmeter
from the Green cathode.
10.
Looking directly into the Tube Lens, bring up each of the G2
(Screen)
Controls
(bottom
row on the Focus/G2
Distribution
Module) for just barely visible light in each tube.
11.
Proceed
to the Gray Scale Tracking
and Sub-Brightness
Adjustment.
Alternate
Method
1.
Picture, Sharpness,
Brightness
and -Iqnt set to mid-range.
2.
Color setting at minimum.
3.
Tune the set to unused input (AUX-1 with nothing connected
is good).
4.
Turn all G2 Controls
(Bottom
Row on Focus/G2
Distribution
Block) to minimum
(fully CCW).
5.
Set the Hi-Lite
Controls
(On Signal/Deflection
Module)
to
their full clockwise
positions.
6.
Set the Lo-Lite
Controls
(also
on the Signal/Deflection
Module) to their full counter-clockwise
positions.
7.
Short Pins 1 and 6 of the J-Test ConneCtor together.
19
Advertisement
Table of Contents
