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MTG-XX02XT/XN Publication A. Issue 1
SERVICE AND OPERATION MANUAL
OPEN FRAME XVGA COLOR MONITORS
This monitor has been designed and manufactured to deliver high performance video. For continued peak Performance
use safe operation, only high quality TOVIS replacement parts or their exact specified Equivalent When servicing.
MTG- XX02XT/XN
MTG-1702XT/XN : 17INCH, FST
MTG-1902XT/XN : 19INCH, FST
Information in this publication current as of Jun, 2003.
Information subject to change as display technology advance.
This publication produced by TOVIS Engineering Division.
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Summary of Contents for Tovis MTG-02XT/XN Series
- Page 1 Information subject to change as display technology advance. This publication produced by TOVIS Engineering Division. This monitor has been designed and manufactured to deliver high performance video. For continued peak Performance use safe operation, only high quality TOVIS replacement parts or their exact specified Equivalent When servicing.
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Page 2: Safety Precautions And Warnings
SAFETY PRECAUTIONS AND WARNINGS Service Warning CRT Warning This display contains HIGH VOLTAGE capable All picture tubes used in TOVIS monitors are of delivering LETHAL quantities of energy. equipped with an integral implosion protection Service should only be attempted by trained system. - Page 3 PERFORMANCE AND OPERATING DATA 1. Power Supply 6. Leakage Current *Power Input: 100VAC ~ 254VAC, 50/60Hz To chassis ground, at 220VAC, 50Hz (Line/Neutral in *Fuse Rating: 250V, 50T 3.15A common) *Power Consumption: - 0.195mA Maximum Size 17” 19” 7. High Pot W(Max) Line/Neutral in common to secondary/chassis, 1500VAC 60Hz for 1 second...
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Page 4: Warranty
PERFORMANCE AND OPERATING DATA 17. Display Stability for Temperature The temperature is cycled from 25°C to 0°C, and from 25°C to 50°C the video size and centering drift will not exceed 5mm horizontally or 4mm vertically. (Measured after a 20 min. warm-up period at 25°C) 18. - Page 5 USER ADJUSTABLE CONTROLS There are four switches on the control panel. OSD Controls Adjustable controls allow the best display status for : User’s control. individual preferences A. BRIGHTNESS ADJUSTMENT Key Function 1) Press the “MODE” key then Main-Menu OSD come out as below Figure.
- Page 6 USER ADJUSTABLE CONTROLS K. COLOR ADJUSTMENT 2) Select the “COLOR” by pressing “SEL” key, then the color Sub-Menu OSD comes out as below Press the “MODE” key then Main-Menu OSD come out figure as below figure. 3) Search “USER” using “UP/DOWN” key (“COLOR1” and “COLOR2”...
- Page 7 “COLOR”, “CONTRAST” “RECALL” as item B. “Exit and save” “BRIGHTNESS” have to fix maximum. (It’s a TOVIS’s reference condition.) 2) At the factory mode, search “COLOR” using “UP/DOWN” key. 3) Select “COLOR” by pressing “SEL” key then color sub-menu comes out as top below figure.
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Page 8: Block Diagram
BLOCK DIAGRAM... -
Page 9: Troubleshooting Chart
TROUBLE SHOOTING CHART NO VIDEO NO POWER NO POWER NO VIDEO CHECK CHECK C101 SIGNAL CABLE AC LEVEL CHECK& CHECK& REPLACEMENT REPLACEMENT F101, SIGNAL CABLE POWER CORD CHECK C104 CHECK IC401 #21,24,26 PULSE DC LEVEL CHECK& REPLACEMENT CHECK IC401 BD101, PFC #23 DC LEVEL &... - Page 10 TROUBLE SHOOTING CHART NO RASTER NO RASTER CHECK H/V & G2 CHECK Q319 WAVEFORM CHECK & CHECK REPLACEMENT G1 & DC 80V FBT, CRT CHECK Q319-Base CHECK & CHECK & REPLACEMENT REPLACEMENT Q507 Q311, Q313 CHECK & REPLACEMENT Q307, Q309, Q310 CONTRAST BRIGHTNESS CONTRAST...
- Page 11 SERVICE NOTICS...
- Page 12 INTEGRATED CIRCUIT DIAGRAM IC201 (u-COM) KS88C6348...
- Page 13 INTEGRATED CIRCUIT DIAGRAM IC501 (IC HORIZONTAL&VERTICAL OSC.) TDA9109A IC401 (IC VERTICAL OUTPUT) KA2142...
- Page 14 INTEGRATED CIRCUIT DIAGRAM IC801 (IC VIDEO PRE-AMP.) KA2500B IC802 (IC VIDEO MAIN AMP.) LM2407...
- Page 15 INTEGRATED CIRCUIT DIAGRAM IC803 (IC ON SCREEN DISPLAY) S5D2508A IC101 (IC SWITCHING REGULATOR) STR-F6656...
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