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TOVIS P/N

MTG-1972XN

DATE

2002.03.11

REV NO.

0

TOVIS

Color Monitor Service Manual

PAGE

9/30

19

1

AMP 19pin connector

NO. DESCRIPTION NO. DESCRIPTION

1 11

TOUCH_RxD

2

VIDEO RED

12

NET GND

3

VIDEO BLUE

13

AC GND

4 VIDEO

GREEN 14

AC2

5 HOR-SYNC 15

AC1

6 VER-SYNC 16 A

GND

7

VIDEO GND

17

+13V DC(A)

8 18

AC2

9 TOUCH_TxD 19

AC1

10

6. CONTROLS AND ADJUSTMENTS

There are four switches on the control panel.
Adjustable controls allow the best display status for individual preferences.

6-1.

Key Function

①

MODE

MODE - Call the Main-Menu OSD.

②

SEL/DEGAUSS

SEL – Select the function (sub-Menu OSD) on the Main- Menu OSD.
DEGAUSS – Do degaussing in state that the OSD isn’t displayed.

③

DOWN/UP

-When the Main-Menu is displayed, can search each function using these
Keys.
-When the Sub-Menu is displayed (after select the function), can change
each state of the screen using these keys.

TOVIS CO., LTD.

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Содержание MTG-1972XN

Страница 1: ...TOVIS P N MTG 1972XN DATE 03 11 02 REV NO 0 TOVIS IGT P N 69925100 PAGE 1 30 Color Monitor Service Manual MODEL MTG 1972XN FOR IGT AUSTRALIA TOVIS CO LTD...

Страница 2: ...or Service Manual PAGE 2 30 I N D E X 1 SAFETY PRECAUTIONS 3 2 SPECIFICATIONS 4 3 TECHNICAL FEATURES 5 4 TIMING CHART 6 5 SET UP 8 6 CONTROLS AND ADJUSTMENTS 9 7 ADJUSTMENT SPECIFICATION 18 8 DESCRIPT...

Страница 3: ...replacing these components read the parts list in this manual carefully 1 3 When replacing the chassis in the cabinet always be certain that all the protective devices are installed properly such as...

Страница 4: ...ntal Sync TTL Level Positive or Negative pulse Scanning 28Khz 70KHz Vertical Input TTL Level Positive or Negative pulse Scanning 40 160Hz 2 3 Power Supply Power Input AC100 240V 60 50Hz Fuse Rating 25...

Страница 5: ...otection circuit operates in order to prevent the components from electrical shock or other risks 3 4 Override function Is designed for the normal display when the monitor is powered on without connec...

Страница 6: ...Hz A 31 778 31 778 28 251 26 667 B 3 813 3 813 3 920 2 032 C 1 907 1 589 1 247 3 810 D 25 422 25 422 22 806 20 317 E 0 636 0 318 0 170 0 508 H POL NEGATIVE NEGATIVE POSITIVE NEGATIVE FH 70 087Hz 59 94...

Страница 7: ...677 B 3 200 1 616 2 400 2 231 C 2 200 3 232 1 280 1 615 D 20 000 16 162 16 000 15 754 E 1 000 0 323 1 119 0 998 H POL POSITIVE POSITIVE POSITIVE NEGATIVE FV 60 317Hz 75 000Hz 72 188Hz 60 004Hz A 16 57...

Страница 8: ...0 020Hz 84 997Hz A 11 756ms 14 272ms 13 328ms 16 638ms 11 765ms B 0 056ms 0 106ms 0 050ms 0 047ms 0 044ms C 0 503ms 0 513ms 0 466ms 0 594ms 0 524ms D 11 179ms 13 599ms 12 795ms 16 005ms 11 183ms E 0 0...

Страница 9: ...ROLS AND ADJUSTMENTS There are four switches on the control panel Adjustable controls allow the best display status for individual preferences 6 1 Key Function MODE MODE Call the Main Menu OSD SEL DEG...

Страница 10: ...e Vertical Position Vertical Size Side Pincushion Trapezoid Pin Balance Parallelogram MAIN PCB VR control VR501 VR301 FBT Sub Bright H V Adjustment Focus and Screen 6 3 OSD Controls User s control A B...

Страница 11: ...tment Press the MODE key then The BRIGHTNESS OSD color changes from red to yellow and the changed brightness value is saved automatically 6 If you want to adjust other functions sub menu Search your S...

Страница 12: ...SIZE ADJUST SAME WAY AS ABOVE E V POSITION ADJUST SAME WAY AS ABOVE F V SIZE ADJUST SAME WAY AS ABOVE G PINCUSHION ADJUST SAME WAY AS ABOVE H TRAPEZOID ADJUST SAME WAY AS ABOVE I PARALLELOG ADJUST SA...

Страница 13: ...olor ex RED goes to red color 6 Adjust RED GREEN or BLUE using UP DOWN key 7 Press MODE key to finish the color adjustment then the OSD goes back to Main Menu 8 Press the MODE key again to finish the...

Страница 14: ...ES Factory control This monitor has two adjustment modes One is for the user s own adjustments and other is for factory adjustments only Factory adjustments may be required during repair Incorrect fac...

Страница 15: ...B Exit and save 1 After finishing the adjustment search RECALL using the UP DOWN key 2 Press the SEL key until the OSD disappears then the adjusted value is saved Exit from the factory mode C Adjustme...

Страница 16: ...justment and BIAS means low beam area s adjustment 5 Select any item wanted by pressing SEL key then the OSD changes to under sub menu as right below figure 6 Adjust color temperature using UP DOWN an...

Страница 17: ...TOVIS P N MTG 1972XN DATE 2002 03 11 REV NO 0 TOVIS Color Monitor Service Manual PAGE 17 30 9300 GAIN 9300 BIAS 6500 GAIN 6500 BIAS At RG GG GAIN BG CO OR At RB GB BIAS BB SEL and UP DOWN TOVIS CO LTD...

Страница 18: ...he crosshatch pattern with the 48KHz 1024 768 mode 2 After connecting a digital voltage meter to the each pin of D316 anode and cathode adjust FBT B voltage to 114V 1 0V using VR301 7 3 2 G2 Voltage a...

Страница 19: ...pattern with 31KHz 640 480 mode 2 Adjust the color temperature to be X 0 281 0 015 and Y 0 311 0 015 by R G B gain on OSD menu 3 Adjust CONTRAST to be 60FT 5 FT 7 3 6 Purity and Convergence Adjustmen...

Страница 20: ...he 4 Pole Magnets to change the angle between them See figure 1 and superimpose red and blue vertical lines in the center area of the picture screen Turn both tabs at the same time keeping their angle...

Страница 21: ...Vf Hz Resolution Hf kHz Vf Hz CS3 38 CS2 39 CS1 40 SUS 4 1 31 70 720x400 28 32 9 68 72 L L L H 2 31 60 640x480 58 62 L L L H 3 35 86 1024x768 33 35 9 84 88 H L L H 4 38 75 640x480 36 40 9 73 77 H H L...

Страница 22: ...C301 and it is used for H scan voltage control driver 5 X ray protection When the fly back voltage rises up to unacceptable level X ray protection is activated X ray input pin 13 of IC601 is above 4V...

Страница 23: ...1 Line driver stage As a driver device small MOSFET Q307 IRF630 is used The driver transformer T302 is equipped with a snubber circuit R327 C309 at the primary side to damp excessive ringing 8 5 2 Ho...

Страница 24: ...is increased contrast is set at the certain limited level 28FL in white pattern that is set by inner voltage of IC401 8 8 Video amplification section 8 8 1 Video pre amplifier IC401 Input video signa...

Страница 25: ...e Manual PAGE 25 30 9 TROUBLE SHOOTING 9 1 NO POWER NO POWER CHECK C101 AC LEVEL NO CHECK REPLACE F101 POWER CORD F101 YES CHECK C104 DC LEVEL NO CHECK REPLACE BD101 YES CHECK IC101 1 WAVEFORM NO CHEC...

Страница 26: ...0 9 2 NO VIDEO NO VIDEO CHECK SIGNAL CABLE CHECK IC401 21 24 26 PULSE CHECK IC401 23 DC LEVEL 18 19 PULSE CHECK REPLACE IC601 Q204 NO YES CHECK REPLACE SIGNAL CABLE NO NO YES YES CHECK REPLACE IC401 C...

Страница 27: ...itor Service Manual PAGE 27 30 9 3 NO RASTER NO RASTER YES CHECK REPLACE Q113 Q307 D315 CHECK HV G2 CHECK Q308 WAVEFORM CHECK G1 DC 80V CHECK L304 DC 55V CHECK REPLACE FBT CRT NO NO YES CHECK REPLACE...

Страница 28: ...nitor Service Manual PAGE 28 30 9 4 TROUBLE IN HORIZONTAL SIZE YES CHECK IC601 19 WAVEFORM CHECK Q309 COLLECTOR WAVEFORM H SIZE NO CHECK REPLACE IC601 CHECK REPLACE Q309 NO YES CHECK IC301 24 WAVEFORM...

Страница 29: ...1 REV NO 0 TOVIS Color Monitor Service Manual PAGE 29 30 9 5 TROUBLE IN CONTRAST CONTRAST CHECK IC401 12 VOLTAGE NO CHECK REPLACE IC401 R518 ZD501 YES CHECK IC401 18 WAVEFORM NO CHECK REPLACE IC601 YE...

Страница 30: ...72XN DATE 2002 03 11 REV NO 0 TOVIS Color Monitor Service Manual PAGE 30 30 9 6 TROUBLE IN BRIGHTNESS BRIGHTNESS CHECK G1 VOLTAGE NO CHECK REPLACE Q202 YES CHECK C504 VOLTAGE NO CHECK REPLACE R520 D50...

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