Proview AY965 LCD Service Manual.pdf

965

Service Manual

TABLE OF CONTENTS

SERVICE WARNING ··········································································· 1

A. IMPORTANT SAFETY INSTRUCTION ··········································· 1

B. SPECIFICATIONS ·········································································· 2

C. TIMING CHART ············································································· 3

D. CONTROL LOCATION ··································································· 5

E. CONDUCTION VIEW ····································································· 6

F. ADJUSTMENT PROCEDURE ························································· 8

G. TROUBLE SHOOTING HINTS ························································ 9

H. REPLACEMENT PARTS LIST ······················································· 13

I. BLOCK DIAGRAM ········································································ 18

J. SCHEMATIC DIAGRAM ······························································· 19

WARNING

To prevent from fire or shock hazard,do not expose monitor to any rain or any form of water.High voltage is

inside the monitor so please do not remove the back cover of the cabinet if you are not a qualified

monitor engineer.Contact the local dealer or the nearest Proview branch office if you need help.

A. IMPORTANT SAFETY INSTRUCTION

Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in

the user's manual for this product.

1. Read all of these instructions.

2. Save these instructions.

3. Follow all warnings and instructions a marked on the product.

4. Unplug this product from the wall outlet before cleaning.Do not use liquid cleaners or aerosol

cleaners, use a damp cloth for cleaning.

5. Do not use this product near water.

6. Do not place this product on an unstable cart,stand or tablle.The product may fall,causing serious

damage to the product.

7. Slots and openings in the cabinet and the back or bottom are provided for ventilation,to ensure

reliable operation of the product and to protect it from overheating,those openings must not be

blocked or covered.The openings should never be blocked by placing the product on a bed,sofa, rug,

or other similar surface.This product should not be placed in a built-in installation less proper

ventilation is provided.

8. This products should be operated from the type of power source indicated on the marketin label.

If you are not sure of the type of power available, consult your dealer or local power company

9. This product is equipped with a 3-wire grounding type plug,a plug having a third (grounding)

pin.This plug will only fit into a grounding-type power outlet.This is a safety feature,if you are

unable to insert the plug into the outlet,contact your electrician to replace your obsolete outlet.Do

not defeat the purpose of the grounding-type plug.

10. Do not allow anything to rest on the power cord.Do not locate this product where persons will walk

on the cord.

11. If an extension cord is used with this product,make sure that the total of the ampere ratings on the

product plugged into the extension cord to the waplugged into outlet does not exceed 15 ampere.

12. Never push objects of any kind into this product through cabinet slots as they may touch dangerous

voltage points or short out parts that could result in a risk of fire or electric shock.Never spill liquid

of any kind on the product.

13. Do not attempt to service this product yourself,as opening or removing covers may expose you to

dangerous voltage points or other risks.Refer all servicing to service personnel.

14. Unplug this product from the wall outlet and refer servicing to qualified service personnel under the

following conditions.

a. When the power cord or plug is damaged or frayed.

b. If liquid has been spilled into the product.

c. If the product has been exposed to rain or water.

d. If the product does not operate normally,when the operating instructions are followed.Adjust

only those controls that are covered by the operating instructions since improper adjustment of

other controls may result in damage and will often require extension work by a qualified

technician to restore the product to normal operation.

e. If the product has been dropped or the cabinet has been damaged.

f. If the product exhibits a distinct change in performance,indicating a need for service.

B. SPECIFICATIONS

1. Maximum Resolution

1280 x 1024 @ 75Hz

2. Recommend Resolution

1280 x 1024 @ 60Hz

3. Synchronization Range

Horizontal

Vertical

31 – 80 KHz

60 – 75 Hz

4. Active Display Area

376mm x 301mm

5. Dot Pitch

0.294 x 0.294 mm

6. Support display colors

16.7M

7. Contrast Ratio (Typical)

600 : 1

8. Luminance of White

135MHz

9. Bandwidth

10. User Control

4 Key Switch

11. OSD Function

Brightness, Conrast, H-Pos, V-Pos, H. Size, Phase, Color Select,

Auto, Reset, Language, OSD Adjust, Exit

12. View Angle

Horizontal

Vertical

85 , 85 Degrees

13. Power Source

100 – 240 Vac, 60 / 50 Hz

14. Power Consumption (max.)

15. Connection Type

15 Pin D Type

16. Input Signal

Video

Sync.

Analog R.G.B. , 0.7Vp-p / 75 Ohms

TTL level,positive or negative polarity

17. Color Temperature

Cool (9300 ° K) / Warm (6500 ° K)

18. Dimension (WxHxD)

19. Monitor Weight

8.7Kg

20. Base Operation

Tilt

0 ° / + 15 °

＜ 60W

＜ 5W

22. Signal Connector Pin Assignment

Pin No.

1. Red

9. 5V DC

2. Green

10. Sync. Grou nd

3. Blue

11. Ground

4. Ground

12. SDA (For DDC)

5. Self Test

13. Horizontal Sync.

6. Red Ground

14. Vertical Sync.

7. Green Ground

15. SCL (For DDC)

8. Blue Ground

23. Audio signal

3.5Φ stereo phone jack

2+2W 8Ω Speaker

250cd/m²

60W

500x460x215mm

21. Power Saving

STAND BY

OFF

C.TIMING CHART

Video

Back porch Active display Front porch

Sync.

Sync-width

Total

Preset

Modes

VGA

720X400

VGA

640X480

VESA

640X480

VESA

800X600

VESA

800X600

VESA

800X600

640X480

Pixel clock

(MHz)

28.325

25.175

31.500

36.000

40.000

50.000

H-Frequency

(KHz)

31.472

31.469

37.861

37.500

35.156

37.879

48.077

H-Total ( µ s)

31.774

31.778

26.413

26.667

28.444

26.400

20.800

H-Active Display (µs)

25.419

25.422

20.317

22.222

20.000

16.000

H-Blanking (µs)

6.355

6.356

6.095

6.349

6.222

6.400

4.800

Front Porch (µs)

0.635

0.636

0.762

0.508

0.667

1.000

1.120

H-Sync-width (µs)

3.813

1.270

2.032

2.000

3.200

2.400

H-Back Porch (µs)

1.906

1.907

4.063

3.810

3.556

2.200

1.280

V-Frequency

(Hz)

70.1

59.94

72.81

75.0

56.25

60.3

72.2

V-Total

(ms)

14.267

16.683

13.735

13.333

17.778

16.579

13.853

V-Active Display (ms)

12.710

15.253

12.678

12.800

17.067

15.840

12.480

V-Blanking (ms)

1.557

1.430

1.057

0.533

0.711

0.739

1.373

V-Front Porch (ms)

0.413

0.318

0.238

0.027

0.028

0.026

0.770

V-Sync-width (ms)

0.064

0.079

0.080

0.057

0.106

0.125

V-Back Porch (ms)

1.080

1.049

0.740

0.427

0.626

0.607

0.478

H/V Sync. Polarity

－＋－－－－－－＋＋＋＋＋＋

Interlace

NONE

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