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PV152
3-3
PRO1200 ADJUSTMENTS
ADJUSTMENTS
Set brightness and Contrast level in mid position.
The internal # pattern menu will be displayed if the
internal cross hatch pattern has been selected or if no
source is connected to the projector.
The table below lists 8 fixed factory preset frequencies
available. Another 8 are custom programmable.
Adjust settings with arrow keys.
ENTER
= accept.
Note:
The SMPS must be adjusted when the projector
displays a picture of the internal generated test
pattern or of an input signal at standard line- and
frame frequency.
Adjustment on main board
a) Adjusting Vout P100
1. Connect a voltmeter to the provided test point 'J8'
(+17.2V). Adjust potentiometer P100 for +17.2V on
testpoint.
b) AdjFiL Voltage P70
Important
: P70 is factory pre-adjusted. A readjustment
is
only
necessary after a replacement of a defective
component in the Filament Voltage stabilization cir-
cuit.
Adjustment procedure
: Connect a voltmeter between
the +Fil and -Fil, respectively contact A26 and A27 of
module connector J20. Adjust potentiometer P70 for
+6.6V Filament Voltage.
Adjustments on sub-board
b) Adj14V P1
Note:
P1 is factory pre-adjusted. A readjustment is
only
necessary after a replacement of a defective
component in the +17V drop circuit.
Adjustment procedure: Connect a voltmeter to the anode
of Z6. Adjust potentiometer P1 for +14V on that
anode.
c) Adjusting MAX HOR SIZE/P2
(at standard frequency)
Adjust the Horizontal Size of the displayed picture by
means of the Remote to its maximum (bar scale on
screen indicates
99
). In Random Access Adjustment
Mode go to Horizontal Size Adjustment. Push the
UP/
DOWN
keys to select HSIZE on the Geometry Menu and
then press
ENTER
.
ENTER
will select horizontal size adjustment
EXIT
returns to random access adjustment mode menu
ADJUST
returns to operational mode
1. Adjust horizontal size by the right or left arrow keys on
the remote, until the exact image width is obtained.
For this adjustment set width to
99
.
5K
P100
11K
Z102
5.6V
BA158
GND
C118
1U
R125
D111
Fig. E
Schematic Reference:
Page: 6-2
Sect: C-5
2K74
3K
32
5
00
E
C72
1u
R76
D74
BYV96E
R73
P70
Fig. F
Schematic Reference:
Page: 6-2
Sect: E-8
Fig. G
Schematic Reference:
Page: 6-3
Sect: A-9
+17V
C6
R16
R17
4K7
47K
D6
D7
IN4148
BAT85
IC 3
LF353
7
5
6
4K7
R19
R18
2K2
R20
33
K
R21
5K
6
P1
2K
FACTORY
PREADJUST ED
ADJU14V
ADJUS T FOR
+14V WITH P1
TL431C
Z6
kHz/Hz
SIGNAL TYPE
15.7/60
NTSC 4:3
15.7/60
NTSC 16:9
31.5/60
VGA 400L
31.5/50
VGA 480L
33.7/60
HD 1080i
45.0/60
HD720p
48.3/60
XGA
64.0/60
QUAD 4:3
64.0/60
QUAD 16:9
FREQUENCY CHART