File name E74H_IBM.pdfMODEL: E74 COLOR MONITOR SERVICE MANUAL
CHASSIS NO. : CA-119 CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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CONTENTS
SPECIFICATIONS ... 2 SAFETY PRECAUTIONS ... 3 TIMING CHART ... 4 OPERATING INSTRUCTIONS ... 5 WIRING DIAGRAM ... 6 DISASSEMBLY ... 7 BLOCK DIAGRAM ... 8 DESCRIPTION OF BLOCK DIAGRAM... ..9 ADJUSTMENT ... 11 TROUBLESHOOTING GUIDE ... 13 EXPLODED VIEW... 23 REPLACEMENT PARTS LIST ... 25 PIN CONFIGURATION... 30 SCHEMATIC DIAGRAM ... 34 PRINTED CIRCUIT BOARD... 36
SPECIFICATIONS
1. PICTURE TUBE Size DefIection Angle Neck Diameter Dot Pitch Face Treatment Low Radiation 3-2. Power Consumption : 17 inch : 90° : 29.1 mm : 0.26 mm : W-ARASC (Anti-Reflection and Anti-Static Coating) : MPR II
MODE MAX NORMAL (ON) STAND-BY SUSPEND OFF POWER CONSUMPTION LED COLOR GREEN GREEN AMBER
85 W 73 W less than 15 W less than 15 W less than 5W
2. SIGNAL 2-1. Horizontal & Vertical Sync 1) Input Voltage Level : Low=0~1.2V, High=2.5~5.5V 2) Sync Polarity : Positive or Negative 2-2. Video Input Signal 1) Voltage Level a) Color 0, 0 b) Color 7, 0 c) Color 15, 0 2) Input Impedance 3) Video Color 4) Signal Format
AMBER
: 0 ~ 0.7 Vp-p : 0 Vp-p : 0.467 Vp-p : 0.7 Vp-p : 75 : R, G, B Analog : Refer to the Timing Chart
4. DISPLAY AREA 4-1. Active Video Area : · Max Image Size - 326.7 x 245.5 mm (12.86" x 9.67") · Preset Image Size - 310 x 230 mm (12.20" x 9.06") 4-2. Display Color : Full Colors 4-3. Display Resolution : 1280 x 1024 / 60Hz(Max) (Non-Interlace) 4-4. Video Bandwidth : 110 MHz 5. ENVIRONMENT 5-1. Operating Temperature: 0°C ~ 40°C (Ambient) 5-2. Relative Humidity : 10%~ 80% (Non-condensing) 5-3. Altitude : 3,000 m 6. DIMENSIONS (with TILT/SWIVEL) Width : 400.0 mm (15.74 inch) Depth : 420.0 mm (16.53 inch) Height : 395.0 mm (15.55 inch) 7. WEIGHT (with TILT/SWIVEL) Net Weight : 14.4 kg (31.75 lbs.) Gross Weight : 16.7 kg (36.82 lbs.)
2-3. Signal Connector 3 row 15-pin Connector (Attached) 2-4. Scanning Frequency Horizontal Vertical
: 30 ~ 70 kHz : 50 ~ 160 Hz
3. POWER SUPPLY 3-1. Power Range AC 100~240V, 60Hz, 2.0A Max.
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SAFETY PRECAUTIONS
SAFETY-RELATED COMPONENT WARNING! There are special components used in this color monitor which are important for safety. These parts are marked on the schematic diagram and the replacement parts list. It is essential that these critical parts should be replaced with the manufact |