ETC EVF720FG739C Manual

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1. PICTURE TUBE

Size

: 17 inch (Flat Slot Mask)

DefIection Angle

: 90°

Neck Diameter

: 29.1 mm

Phosphor

: P22

Slot Pitch

: 0.24 mm

Low Radiation

: TCO-99

Face Treatment

: W-ARASC (Anti-Reflective and

2. SIGNAL

2-1. Horizontal & Vertical Sync

1) Input Voltage Level : Low= ≤0.8V, High= ≥2.1V

2) Sync Polarity

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

2-3. Signal Connector

15 Pin D-Sub Connector

2-4. Scanning Frequency

Horizontal

Vertical

3. POWER SUPPLY

3-1. Power Range

AC 100~240V (Auto Select), 50/60Hz, 2.0A Max.

SPECIFICATIONS

Anti-Static Coating),

Internal Anti-Glare

: Positive or Negative

: 0 ~ 0.7 Vp-p

: 0 Vp-p

: 0.467 Vp-p

: 0.7 Vp-p

: 75 Ω

: R, G, B Analog

: Refer to the Timing Chart

: 30 ~ 95 kHz

: 50 ~ 160 Hz

3-2. Power Consumption

MODE

H/V SYNC

NORMAL (ON)

ON/ON

STAND-BY

OFF/ON

SUSPEND

ON/OFF

OFF

OFF/OFF

4. DISPLAY AREA

4-1. Active Video Area :

• Max Image Size - 325.4 x 244.1mm (12.81" x 9.61")

• Preset Image Size - 310 x 230 mm (12.20" x 9.06")

4-2. Display Color

4-3. Display Resolution : 1600 Dots x 1200Lines

4-4. Video Bandwidth

5. ENVIRONMENT

5-1. Operating Temperature: 10°C ~ 35°C (50°F ~ 95°F)

5-2. Relative Humidity

5-3. Altitude

6. DIMENSIONS (with TILT/SWIVEL)

Width

Depth

Height

7. WEIGHT (with TILT/SWIVEL)

Net Weight

Gross Weight

- 2 -

POWER CONSUMPTION

LED COLOR

less than 130W

GREEN

less than 8W

AMBER

less than 8W

less than 3W

AMBER

: Full Colors

: 203 MHz

(Ambient)

: 8% ~ 80%

(Non-condensing)

: 10,000 ft

: 415.0 mm (16.34")

: 439.0 mm (17.28")

: 435.0 mm (17.13")

: 19.2 kg (42.33 lbs)

: 22.7 kg (50.05 lbs)

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Summary of Contents for ETC EVF720FG739C

Page 1 SPECIFICATIONS 1. PICTURE TUBE 3-2. Power Consumption Size : 17 inch (Flat Slot Mask) MODE H/V SYNC POWER CONSUMPTION LED COLOR DefIection Angle : 90° Neck Diameter : 29.1 mm less than 130W NORMAL (ON) ON/ON GREEN Phosphor : P22 less than 8W STAND-BY OFF/ON...
Page 2: Timing Chart
TIMING CHART << Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Sync Sync Duration Total Period Video Active Front Porch Blanking Time Back Porch Mode Resolution Frequency Sort Polarity Time (A) 60.023 K 1.219 16.660 13.003...
Page 3: Control Locations
CONTROL LOCATIONS Control Function Ref. No. Control Function Ref. No. OSD SELECT/ADJUSTMENT (LEFT) SW131 POWER SWITCH OSD BUTTON SET BUTTON B + ADJUSTMENT OSD SELECT/ADJUSTMENT (RIGHT) VR901 RASTER CENTER SELECT OSD SELECT/ADJUSTMENT (DOWN) SW701 HIGH-VOLTAGE ADJUSTMENT OSD SELECT/ADJUSTMENT (UP) VR701 - 8 -...
Page 4 DISASSEMBLY 1. TILT/SWIVEL REMOVAL 1) Set the monitor face downward. 2) Pressing the latch (a), carefully remove the Tilt/Swivel by pulling it upward. 2. BACK COVER REMOVAL 1) Remove four screws (a) from the Back Cover. 2) Slide the Back Cover away from the Front Cabinet of the monitor.
Page 5 4. TOTAL CHASSIS ASSEMBLY REMOVAL 1) Disconnect P901 (Degaussing pin), P701 (DY pin), P202 (Tilt pin), and P201 (Purity pin) from the Main PCB. 2) Disconnect P308 (GND Wire), P304, P304 from the Video PCB. 3) Carefully separate the CDT Board Assembly from the CDT neck.
Page 6: Main Bracket Removal
6. BOTTOM BRACKET REMOVAL 1) Remove four screws (a). 2) Remove the Bottom Bracket. Main Bracket Bottom Bracket 7. MAIN BRACKET REMOVAL 1) Remove eight screws (a). 2) Release four latches (d) from the Main Board Assembly. 3) Remove the Bottom Bracket. Main Bracket - 12 -...
Page 7: General Information
ADJUSTMENT GENERAL INFORMATION 4. Adjustment for Factory Mode (Preset Mode). 1) Display cross hatch pattern at Mode 1. All adjustment are thoroughly checked and corrected 2) Run alignment program for EVF720 on the IBM when the monitor leaves the factory, but sometimes compatible PC.
Page 8 ± 0.02FL of ± 1FL of 7) Adjust Screen control on the FBT to 0.15 15) Adjust SUB-CONTRAST command to 55 the raster luminance. the box pattren (70x70 mm). ± 8) Adjust R-BIAS and G-BIAS command to x=0.283 16) Display color 15,0 full white patten at Mode 8. 17) COLOR ADJ.
Page 9: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK TROUBLE IN FUSE OK? FUSE (F901) CHECK C907 (+) VOLTAGE? TROUBLE IN 140Vdc (AC=100V) D901 310Vdc (AC=220V) CHECK IC903 PIN 3 TROUBLE IN WAVEFORM COME IC903 OUT? CHECK IC901 PIN 3 TROUBLE IN WAVEFORM COME IC901...
Page 10 2. NO CHARACTER NO CHARACTER CHECK TROUBLE IN IC302 PIN 3, 8, 12 (12V), P302, PIN 17 (5V)? 5V, 12V LINE TROUBLE IN CHECK PC SIGNAL, IC302 PIN 2, 6, 11 ? SIGNAL CABLE CHECK TROUBLE IN IC302 PIN 29, 32, 35 ? IC302 CHECK TROUBLE IN...
Page 11 3. NO RASTER NO VIDEO (POWER INDICATOR GREEN or ORANGE) CHECK ORANGE POWER INDICATOR TROUBLE IN GREEN or ORANGE ? P302 SIGNAL CABLE GREEN MIN. ROTATE SCREEN CHECK (Counter-clockwise) CONTROL KNOB TO SCREEN CONTROL CLOCKWISE KNOB OF FBT CHECK VOLTAGE AT D912 CATHODE (190V) TROUBLE IN PRIMARY D909 CATHODE (85V)
Page 12: No Vertical Deflection
4. NO VERTICAL DEFLECTION NO V-DEFLECTION (ONE HORIZONTAL LINE) CHECK TROUBLE IN IC601 PIN 2 (15V) ? T901 PIN 15 CHECK TROUBLE IN IC601 PIN 4 T901 PIN 16 (-12V)? CHECK TROUBLE IN IC701 PIN 12, 13 IC701 (SAWTOOTH WAVE)? TROUBLE IN IC601, V-CIRCUIT - 21 -...
Page 13 5. TROUBLE IN DPM STAND-BY/SUSPEND/ OFF MODE FAILURE CHECK CHECK PC, IC401 (MICOM) NO H / V SYNC SIGNAL (PC IS NOT GOING INTO PIN 8, 9 (H/V INPUT) DPM MODE) SIGNAL? INPUT H/V SYNC CHECK TROUBLE IN IC401 PIN 13, 14 X401, IC401 WAVEFORM? CHECK...
Page 14 6. NO DEGAUSSING BUTTON MUST BE PRESSED.) NO DEGAUSSING CHECK TROUBLE IN IC401 PIN 20 IC401 (MICOM) (5V)? CHECK TROUBLE IN Q908 COLLECTOR D914 VOLTAGE (0.5V)? CHECK TROUBLE IN P903? P901 CHECK TROUBLE IN RL901? RL901 TROUBLE IN TH901, DEGAUSSING COIL - 23 -...
Page 15 7. NO TILT (ROTATION ) NO TILT (ROTATION) CHECK TROUBLE IN R213 VOLTAGE D913 (12V) ? CHECK Q202, Q208, TROUBLE IN Q205, Q204 ? Q202, Q208, Q205, Q204 CHECK TROUBLE IN IC401 ? IC401 TROUBLE IN P202, TILT COIL CONNECTOR, TILT COIL - 24 -...
Page 16 8. TROUBLE IN OSD NO OSD CHECK TROUBLE IN IC301 PIN 4, 17 P302 (5V) ? CHECK IC301 PIN 5 TROUBLE IN (NEGATIVE H-PULSE P302 COMES IN ?) CHECK IC301 PIN 18 TROUBLE IN (NEGATIVE V-PULSE P302 COMES IN?) CHECK IC301 PIN 8, 7 TROUBLE IN (IS THERE ANY SIGNAL...
Page 17: Block Diagram
BLOCK DIAGRAM - 13 -...
Page 18: Description Of Block Diagram
H and V sync. select DEGAUSS on the OSD menu. 3) The Micom controls each OSD function signals. (H-size, H-position, V-size, etc.) 3. SMPS (Switching Mode Power Supply). This circuit works with power of 110-240Vac 4) The controlled data of each mode is stored in IC402.
Page 19 11. High Voltage Output & FBT (Flyback Transformer). 17. Static Convergence Control Circuit. This circuit corrects the convergence of the screen by The high voltage output circuit is used for generating supplying the convergence signal to the 4H (STC) coil pulse wave to the primary coil of the FBT (Flyback which is attached to the CDT near the deflection.
Page 20: Wiring Diagram
WIRING DIAGRAM - 9 -...
Page 22: Exploded View
EXPLODED VIEW EXPLODED VIEW PARTS LIST Ref. No. Part No. Description Q'ty Material 3091TKC042A CABINET ASS'Y LGC GN5001TF UL94-5V 2423GC3E41A CDT, M41QBF423X 11N6LD 6868T17004B CDT EARTH 339-002D SCREW ASS’Y, PHP+5x30BP+GW18 4951TKS054A METAL FRAME ASS’Y AL (t=1.0) 6140TC2010A DEGAUSSING COIL 6174Z-1018F FBT, FMMTC-M1018F 6200TJB003B AC SOCKET...