PV152
3-6
PRO1200 ADJUSTMENTS
ADJUSTMENTS
d. Sub Module - Vert Parabol Symetery & Vert Ampli-
tude
Vertical Symetery Adjsutment
1. Connect the oscilloscope to pin 10 of connector J4
on the sub module.
2. Adjust P1 for a
symmetrical
curve of the parabola
signal.
Vertical
Amplitude Adjustment
1. Connect the oscilloscope to pin 10 of connector J4
on the sub module.
2. Adjust P2 for an
amplitude
of the parabola signal of
4.5 Vpp
MAGNETIC FOCUS+HOR SHIFT
Note
: the mentioned adjustments are Horizontal shift
'course' adjustments for the Red and Blue picture tube.
Preparation
Remove A/C and Install PCB Extension
Adjust the Horizontal raster centering controls for Red
and Blue in their mid position by means of the Remote
Control Unit. The numeric indicator under the respec-
tive bar scale indicates 50.
(Refer to the Owner's manual of the projector - Guided
or Random adjustment mode).
Alignment
Use the Horizontal shift controls
P2
for
RED
and
P1
for
BLUE
to shift horizontally the Red and Blue image until
the center coincides with the center of the Green im-
age.
SMPS-2 + G2
1. Adjust for 1020v with P1 at M2 as test Point.
2. Remove A/C and Install PCB Extension
HORIZONTAL AMPLITUDE /SWITCHING
Horizontal Amplitude
1. Decrease the contrast and increase the brightness to
reveal the (background) raster.
2. Provide either an internally or externally generated
source with the highest line frequency to the projec-
tor. See Page 13-2 for Frequency Chart.
4.5 Vpp
Fig. Q
SMPS
RGB Input & Switch
Sync & Vertical Deflection
Horizontal Deflection
Magentic Focus & H-Shift
Internal
Remote
Control
RGB Analog Auto Sync Input
SMPS 2+G2
EHT
Fig. R
Fig. S
Schematic Reference:
Page: 6-15
Sect: D-5
+SHIFT
C54
100K
R8
10
K
R7
22K1
H
>J2[6]
IS
BC559B
Q1
R9
33K2
R10
R11
1K
21
2K
21
-SHIFT
R15
2K
21
R14
1K
21
BC559B
Q2
R12
68
K1
R13
39
K
P1
100K
100K
MAIN SHIFT
ADJUSTMENT
BLUE
MAIN SHIFT
ADJUSTMENT
RED
P2
SMPS
RGB Input & Switch
Sync & Vertical Deflection
Horizontal Deflection
Magentic Focus & H-Shift
Internal
Remote
Control
RGB Analog Auto Sync Input
SMPS 2+G2
EHT
Fig. T
Scan Inversion Switches
Horizontal Width Controls
