NEC MultiSync FP1370 Manuel utilisateur

COLOR MONITOR MultiSync!

!FP1370

MODELS FP1370 (A) / (B)

NEC Corporation 200002

08109341

08109342

SERVICE MANUAL

PART NO. 599910501

WARNING

The SERVICE PERSONNEL should have the appropriate technical training, knowledge and experience

necessary to:

･Be familiar with specialized test equipment, and

･Be careful to follow all safety procedures associated with high voltage CRT circuit designs to minimize

danger to themselves and their coworkers.

To avoid electrical shocks, this equipment should be used with an appropriate power code and be

connected only to a properly grounded AC outlet.

This equipment utilized a micro-gap power switch. Turn off the set by first pushing the front panel

power switch. Next, remove the power cord from the AC outlet.

To prevent fire or shock hazards, do not expose this unit to rain or moisture.

This symbol warns the personnel that un-insulated voltage within the unit may have sufficient

magnitude to cause electric shock.

This symbol alerts the personnel that important literature concerning the operation and

maintenance of this unit has been included.

Therefore, it should be read carefully in order to avoid any problems.

PRODUCT SAFETY CAUTION

1. When parts replacement is required for servicing, always use the manufacturer's specified replacement.

2. Comply with all caution and safety-related notes on the product display chassis and picture tube.

3. When replacing the component, always be certain that all the components are put back in the place.

4. When servicing display monitor unit, it is required that the provided lead dress is used in the high voltage

circuit area.

5. It is also recommended that shatter proof goggles are worn, when removing installing and handling the

picture tube. People not equipped with the proper precautionary measures mentioned should keep the

picture tube away from body while handling.

6. As for a connector, pick and extract housing with fingers properly since a disconnection and improper

contacts may occur, when wires of the connector are led.

7. Use a proper screwdriver. If you use screwdriver that does not fit, you may damage the screws.

8. X-radiation precaution

This product contains critical electrical and mechanical parts essential for X-ray protection.

Normal anode voltage is 27.0 kV at zero beam picture tube current under AC 100-120V/220-240V input,

and anode voltage must not exceed the voltages shown below under any operation condition.

To measure anode voltage set brightness for very dim picture, and use a high impedance volt meter

between chassis and anode lead and measure high voltage.

If high voltage exceeds the specifications on the chassis schematic diagram, take the necessary

corrective action.

Table MAXIMUM ANODE VOLTAGE

beam current at 0 mA at 0.8 mA at 1.4 mA

A/B 34.5 kV 32.5 kV 32.3 kV

9. When you degauss the set with an external degaussing coil, you must keep strictly item “ ※Notes

about degaussing method ” of ADJUSTMENT PROCEDURES.

CONTENTS

Page No.

SPECIFICATIONS 1-1

CONTROLS 2-1

SERIAL NUMBER INFORMATION 3-1

ASSEMBLY 4-1

ADJUSTMENT PROCEDURES 5-1

INSPECTION 6-1

TROUBLE SHOOTING 7-1

CIRCUIT DESCRIPTION 8-1

REPLACEMENT PARTS LIST 9-1

PRINTED WIRING BOARDS 10-1

BLOCK DIAGRAM 11-1

SPECIFICATIONS

Monitor Specifications MultiSync ® FP1370 ™Monitor Notes

Picture Tube Diagonal:

Viewable Image Size:

Radius:

55.3 cm / 22 inch

50.8 cm / 20 inch

57800 mm

90°deflection, 0.24 mm grille pitch,

Medium-Short persistence phosphor,

aperture grille CRT, multi-layered, anti-

static screen coating, semi-dark-tint

screen, and OptiClear screen surface.

Input Signal Video:

Sync: ANALOG 0.7 Vp-p/75 Ohms

Separate sync. TTL Level

Horizontal sync. Positive/Negative

Vertical sync. Positive/Negative

Composite sync. (Positive/Negative) (TTL Level)

Sync on Green video (Positive) 0.7 Vp-p and sync.

(Negative) 0.3 Vp-p

Display Colors Analog input: Unlimited number of Colors Depends on display card used.

Synchronization Horizontal:

Range Vertical: 31 kHz to 130 kHz

55 Hz to 160 Hz Automatically

Automatically

Resolutions Supported

Resolution based on horizontal

and vertical frequencies only

640 x 480 @ 60 to 160 Hz

800 x 600 @ 55 to 160 Hz

832 x 624 @ 55 to 160 Hz

1024 x 768 @ 55 to 154 Hz

1152 x 870 @ 55 to 137 Hz

1280 x 1024 @ 55 to 118 Hz

1600 x 1200 @ 55 to 102Hz …....

1792 x 1344 @ 55 to 91 Hz

1800 x 1440 @ 55 to 85 Hz

1856 x 1392 @ 55 to 88 Hz

1920 x 1440 @ 55 to 85 Hz

2048 x 1536 @ 55 to 80 Hz

Some systems may not support

all modes listed.

NEC cites recommended resolution

at 85 Hz for optimal display

performance

Active Display Area Horizontal:

(Factory Setting) Vertical: 396 mm/15.6 inches

297 mm/11.7 inches Dependent upon signal timing used,

and does not include border area.

Active Display Area

(Full Scan) 406 mm/16.0 inches

305 mm/12.0 inches Dependent upon signal timing used,

and does not include border area.

Power Supply AC 100 - 120 V / 220 - 240 V, 50/60 Hz

Current Rating 2.4A @ 100 - 120 V / 1.1A@ 220-240 V

Dimensions 483 mm (W) x 501 mm (H) x 472 mm (D)

19.0 inches (W) x 19.7 inches (H) x 18.6 inches (D)

Weight 32.4 kg

71.4 lbs

Environmental Considerations

Operating Temperature:

Humidity:

Altitude:

Torage Temperature:

Humidity:

Altitude:

10ﾟC to + 35ﾟC / + 50ﾟF to + 90ﾟF

30% to 80%

3,000 m / 10,000 Feet

-20ﾟC to + 60ﾟC / + 4ﾟF to + 140ﾟF

10% to 90%

13,700 m / 45,000 Feet

NOTE: Technical specifications are subject to change without notice.

1-1

CONTROLS

OSMTM (ON-Screen Manager) control buttons on the front of the monitor function as follows:

Main Menu Sub-Menu

EXIT Exits the OSM menu. Exits to the OSM controls main menu.

▲

▲▲

▲/▼

▼▼

▼Moves the highlighted area up/down to

select one of the controls. Moves the highlighted area up/down to select

one of the controls.

－

－－

－/＋

＋＋

＋Moves the highlighted area left/right to

select one of the controls. Moves the bar in the - or + direction to

decrease or increase the adjustment.

PROCEED Has no function. Only executes control or enters sub, sub-

menu.

RESET Resets all the controls within the

highlighted menu to the factory setting. Resets the highlighted control to the factory

setting.

NOTE : When RESET is pressed in the main and sub-menu, a warning window will appear allowing you to

cancel the reset function.

When OSM controls are activated, icons are displayed at the top of the menu.

If an arrow ( ) is displayed in a sub-menu, it indicates further choices are available.

To enter a sub, sub-menu, press PROCEED.

Brightness/Contrast Controls

Brightness : Adjusts the overall image and background screen brightness.

Contrast : Adjusts the image brightness in relation to the background.

Degauss : Eliminates the buildup of stray magnetic fields which alter the correct scan of the electron

beams and affect the purity of the screen colors, focus, and convergence. When activated, your screen

image will jump and waver a bit as the screen is demagnetized.

Caution : Please allow a minimum of 20 minutes to elapse between uses of the Degauss Control.

Size and Position Controls

Auto Adjust : Automatically adjusts the horizontal and vertical size and position settings for applicable

signal timings.

Left/Right : Moves the image horizontally (left or right).

Down/Up : Moves the image vertically (up or down).

Narrow/Wide : Decreases or increases the horizontal size of the image.

Short/Tall : Decreases or increases the vertical size of the image.

R G B Color Control / AccuColor RControl System

Color Presets 1 through 5 selects the desired color setting. The bar is replaced by the color setting

choice from 1 to 5. Each color setting is adjusted at the factory to the stated Kelvin. If a setting is

adjusted, the name of the setting will change from Kelvin to Custom.

Red, Green, Blue : NEC’s AccuColor Control System decreases or increases the monitor’s red, green,

or blue color guns depending upon which is selected. The change in color will appear on screen and

the direction (decrease or increase) will be shown by the bars.

2-1

Geometry Controls

Geometry Controls Menu

The Geometry controls allow you to adjust the curvature or angle of the sides of your display.

Sides In/Out (pincushion): Decreases or increases the curvature of the sides either inward or outward.

Sides Left/Right (pincushion balance): Decreases or increases the curvature of the sides either to

the left or right.

Sides Tilt (parallelogram) : Decreases or increases the tilt of the sides either to the left or right.

Sides Align (trapezoidal) : Decreases or increases the bottom of the screen to be the same as the top.

Rotate (raster rotation) : Rotates the entire display clockwise or counterclockwise.

Tools 1

Moiré Canceler: Moiré is a wavy pattern which can sometimes appear on the screen. The pattern is

repetitive and superimposed as rippled images. When running certain applications, the wavy pattern is

more evident than in others. To reduce moiré, adjust the ON/Level by using the –/+ CONTROL buttons.

Basic Convergence: Aligns all three colors(R,G,B) to form a single color(white). The purpose of this

control is to ensure that a white line drawn on the screen is as crisp and clear as possible.

Use the Horizontal control to adjust the alignment of the white lines in the up/down direction.

Use the Vertical control to adjust the alignment of the white lines in the left/right direction.

Area Convergence: A small window will appear to indicate the area of adjustment - Top Horizontal,

Top Vertical, Bottom Horizontal or Bottom Vertical.

Corner Correction: Allows you to adjust the geometry of the corners of your display - Top, Top

Balance, Bottom or Bottom Balance.

Linearity: This selection allows you to adjust the spacing of the area on the screen. The purpose of

this control is to ensure that a one-inch circle is a true one-inch circle wherever it is on the screen.

The best way to determine the vertical linearity is as follows:

Draw equally spaced horizontal lines using a drawing application that has a ruler.

Use the Vertical Balance control to adjust the lines near the top and bottom of your screen.

Use the Vertical control to adjust the spacing between the lines near the center and top of your screen.

GlobalSync®Control: Eliminates picture impurities that may result from the earth’s magnetic field.

While in the sub-menus(GlobalSync, Top Left, Top Right, Bottom Left or Bottom Right), use the -/+

control buttons to fine tune the GlobalSync corrections.

Note: NEC recommends that you perform GlobalSync correction while running a typical application

such as a spreadsheet or text document.

Sharpness: Allows you to adjust the clarity of the image, based on the quality of the signal received

from the computer.

Use a full text document to make this adjustment.

Cycle through the four sharpness settings and select the one that provides the sharpness focus and

contrast of the text.

Factory Preset: Selecting Factory Preset allows you a reset most OSM™ control settings back to the

factory settings. A warning statement will appear to confirm that you do want to reset ALL settings.

Individual settings can be reset by highlighting the control to be reset and pressing the RESET button.

2-2

Tools 2

Language: OSM control menus are available in seven languages.

OSM Position: You can choose where you would like the OSM controls menu to appear on your

screen. Selecting OSM Position allows you to manually adjust the OSM controls menu left, right, up or

down.

OSM Turn Off: The OSM controls menu will stay on as long as it is in use. In the OSM Turn Off sub-

menu, you can select how long the monitor waits after the last touch of a button for the OSM controls

menu to disappear. The preset choices are 10, 20, 30, 60 and 120 seconds.

OSM Lock Out: This control completely locks out access to all OSM controls functions except

Brightness and Contrast. When attempting to activate OSM controls while in the lock out mode, a

screen will appear indicating that OSM controls are locked out. To activate the OSM Lock Out function,

press PROCEED, then press ▲

▲▲

▲and hold down simultaneously. To deactivate the OSM Lock Out,

press PROCEED, then press ▲

▲▲

▲and hold down simultaneously.

IPM™ System Off Mode: Enable: The IPM System works normally and all stages of energy savings

are utilized.

Disable: The Off Mode of the IPM System is not used.

NOTE: For standard systems and graphics boards, keep the factory setting at ENABLE.

EdgeLockTM Control: Operating your monitor at a non-standard timing may cause images to appear

darker than normal or have color distortion. Use of the EdgeLock control will adjust images to their

normal state.

Refresh Notifier: A message will advise you if the refresh rate of the signal being applied to the

monitor by the computer is too low. For further information, please refer to your display card or system

manual.

Information

Display Mode: Indicates the current mode and frequency setting of the monitor.

Fitness Tips: The fitness Tips provide you with helpful reminders to periodically rest your eyes. You

may select how frequently the remainders are displayed based upon your individual needs. Select an

interval from 15,30,45,60,90 or 120 minutes for the tips to appear. When the tips appear, follow the

advice of the tips and press EXIT to clear.

Monitor Info: Indicates the model and serial numbers of your monitor.

2-3

SERIAL NUMBER INFORMATION

Refer to the serial number information shown below.

□　□　□　□　□　□　□　□　□

Manufactured Year :

( Last digit )

Manufactured Month :

January to September 1 to 9

October X

November Y

December Z

Factory mark :

GEORGIA Line 1 “K”

Line 2 “L”

Line 3 “M”

Line 4 “N”

MEXICO “A”

EX.) SERIAL NUMBER LABEL

Model : FP1370

Serial No. :

00001 ~ on ward

( Start from 00001 ~ when

month is changed. )

Model mark …A

3-1

4-1

ASSEMBLY

・Before you disassemble the set, turn off power and pull out the power plug.

・Use the appropriate screwdrivers that fits the screws. If you use screwdriver that does not fit, you may

break the screws.

・Disassembly is the opposite process of assembly.

・

Carefully discharge the CRT anode potential by grounding to coating dag before removing Anode Cap.

REMARK SYMBOL

Clamp the EMF COIL with

CLAMPER. (4 point)

The thick of the EMF COIL is

placed between A and B .

132

REMARK SYMBOL

Forming(Corner Coil) 133

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