4-2-1 HIGH VOLTAGE ADJUSTMENT
Signal:
1024 x 768 (68 kHz/85 Hz)
Display image: Don’t care
Contrast:
Minimum
Brightness:
Minimum
Limit:
26.5 kV ± 0.2 kV
exception)
26.0 kV ± 0.2 kV for SDD CRT that
the DY type is DMX-1791AT
Measure the hight voltage level at the anode cap.
High voltage should be within the limit as above.
If the high voltage needs adjustment use the
following procedure.
PROCEDURE
1. Turn the power off and disconnect the AC line
cord from the power source.
2. Turn the power on after connecting high
voltage Probe.
3. Using the jig, adjust the high voltage to the
specification.
* High Voltage Adjustment PROCEDURE using Softjig
①
Select matching model name in “Model” field.
➁
Select “ @7: Zero Beam” in menu after
selecting “Extra 1”
➂
Adjust high voltage using control bar after
selecting “HV MIN”
➃
Turn the power off/on after adjustment
finished.
➄
Check the high voltage has been fixed with
adjusted value after reselecting “@7: Zero Beam”.
4-2-2 SCREEN VOLTAGE ADJUSTMENT
CONDITIONS
Signal:
1024 x 768 (68 kHz/85 Hz)
Display image: Don’t care
Contrast:
Minimum
Brightness:
Minimum
Limit:
26.5 kV ± 0.2 kV
Screen Voltage adjustment procedure using softjig
is all the same as 4-2-1 but selecting “G2 CONT”
on the contrary to “HV MIN”.
Table 4-1
4-2-3 CENTER RASTER
Adjust SW401 so that the back raster comes to the
center when you apply each basic mode.
4-2-4 Centering
Centering means to position the center point of
the display in the middle of the display area.
Horizontal size and position and vertical size and
position control the centering of the display.
Adjust the horizontal size and vertical size to their
optimal settings: 306 mm (H) x 230 mm (V) .
Adjust the horizontal position and vertical
position to
≤
4.0 mm of the center point of the
screen.
|A-B|
≤
4.0 mm. |C-D|
≤
4.0 mm.
Figure 4-3. Centering
* In Softjig window, “Geometry” has to be
selected for GD adjustment.
4-2-4 (a) HORIZONTAL SIZE ADJUSTMENT
CONDITIONS
Scanning frequency:
68 kHz/85 Hz
Display image:
Crosshatch pattern
Brightness:
Maximum
Contrast:
Maximum
Use control bar after selecting “H-SIZE” in left
menu to adjust the horizontal size of the display
pattern to 306 mm. (Tolerance: ± 4 mm.)
If “H-SIZE” is not enough to adjust it, select
“SIZE B+” by turns.
4 Alignment and Adjustments
TP17LT
4-3
4-2 Display Control Adjustments
C
A
DISPLAY AREA
EDGE OF BEZEL
B
D
17”
CRT type
Screen Voltage
M41QAR361X11*(*)
M41QAQ261X11*(*)
M41LFQ903X28(L), etc
M41EHN325X160/3F**U
M41EHN323X160/3F**U
M41LLJ507XX43*(F5), (F5W3)
M41LLH507XX43*(F5)
480V
±
10V
500V
±
10V
630V
±
10V
Summary of Contents for TP17LT
Page 2: ...Samsung Electronics Co Ltd March 2000 Printed in Korea P N BH68 00129K 01 ...
Page 8: ...2 Product Specifications 2 4 TP17LT Memo ...
Page 37: ...6 Exploded View and Parts List 6 1 Front Cover CRT Ass y TP17LT 6 3 ...
Page 38: ...6 2 Chassis Stand Ass y 6 Exploded View Parts List 6 4 TP17LT ...
Page 39: ...6 3 Rear Cover Ass y 6 Exploded View Parts List TP17LT 6 5 ...
Page 40: ...Memo 6 Exploded View Parts List 6 6 TP17LT ...
Page 56: ...7 Electrical Parts List 7 16 TP17LT 7 3 Different Parts List CDT ...
Page 58: ...Memo 8 Block Diagrams 8 2 TP17LT ...
Page 59: ...TP17LT 9 1 9 Wiring Diagram ...
Page 60: ...10 1 TP17LT 10 Schematic Diagrams 10 1 SMPS Part Schematic Diagram ...
Page 62: ...10 Schematic Diagrams 10 3 TP17LT 10 2 Micom Part Schematic Diagram ...
Page 64: ...10 Schematic Diagrams 10 5 TP17LT 10 3 H V OSC Vertical Part Schematic Diagram ...
Page 66: ...10 Schematic Diagrams 10 7 TP17LT 10 4 Deflection Part Schematic Diagram ...
Page 68: ...10 Schematic Diagrams 10 9 TP17LT 10 5 Video Part Schematic Diagram ...