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SH970I
Service Manual
TABLE OF CONTENTS
SERVICE WARNING· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 A. I M P O R T A N T S A F E T Y I N S T R U C T I O N · · · · · · · · · · · · · · · · · · · · · 1 B. S P E C I F I C A T I O N S · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 C. T I M I N G C H A R T · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 3 D. C O N T R O L L O C A T I O N · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5 E. CONDUCTION VIEW· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6 F. ADJUSTMENT PROCEDURE· · · · · · · · · · · · · · · · · · · · · · · · · · · ·· · · · 11 G. T R O U B L E S H O O T I N G H I N T S · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 2 H. B L O C K D I A G R A M · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 6 I. S C H E M A T I C D I A G R A M · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 7
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 2. Recommend Resolution 3. Synchronization Range Horizontal Vertical 4. Active Display Area 5. Dot Pitch 6. Support display colors 7. Contrast Ratio (Typical) 8.Luminance of White 9. Bandwidth 10. User Control 11. OSD Function CR=5 12. View Angle Horizontal Vertical 13. Power Source 14. Power Consumption 15. Connection Type 16. Input Signal Video Sync. 17. Color Temperature 18. Dimension (WxHxD) 19. Monitor Weight 20. Base Operation Tilt 21. Power Saving ON STAND BY OFF 22. Signal Connector Pin Assignment Pin No. 1. Red 2. Green 3. Blue 4. Ground 5. Self Test 6. Red Ground 7. Green Ground 8. Blue Ground 3.5 stereo phone jack Input Sensitivity : 200mV 2.5+2.5W 8 Speaker 9. VDD from PC for DDC 10. Sync. Ground 11. Ground 12. SDA (For DDC) 13. Horizontal Sync. 14. Vertical Sync. 15. SCL (For DDC) 1280*1024 @ 75Hz 1280*1024 @ 60Hz 30 81 KHz 56 75 Hz 337.9mm (H) x 270.3mm (V) 0.264(H) x 0.264(V) mm 16.7M color 450:1 260cd/m˛ 135MHz 4 Key Switch Brightness, Conrast, H-Pos, V-Pos, H. Size, Phase, Color Select, Auto, Reset, Language, OSD Adjust, Exit +-70 Degrees +-70 Degrees 90-264 Vac 60 / 50 Hz 48W (max.) 15 Pin D Type Analog R.G.B. , 0.7Vp-p / 75 Ohms TTL level,positive or negative polarity Cool / Warm 452mm x 465mm x 142mm 4.8Kg 0 / + 15 degree 50W 5W 5W
23. Audio signal
C.TIMING CHART
D Video B Sync. A E A: Period B: Active C: Sync Width D: Back Porch E: Front porch
C
Preset Modes
VGA 640X480
*VGA 640X480
VESA 640X480
VESA 640X480
VGA 720X400
VESA 800X600
VESA 800X600
VESA 800X600
VESA 800X600
*MAC 832X624
Dot Rate F.H
A-period B-Active C-Sync.width
25.175MHz 31.340MHz 31.500MHz 31.500MHz 28.322MHz 36.000MHz 40.000MHz 50.000MHz 49.500MHz 55.000MHz 31.469KHz 34.978KHz 37.861KHz 37.500KHz 31.469KHz 35.156KHz 37.879KHz 48.077KHz 46.875KHz 49.107KHz 31.778us 25.422us 3.813us 1.589us 0.954us 59.941Hz 16.683ms 15.253ms 0.064ms 0.794ms 0.572ms 28.590us 20.421us 2.042us 3.063us 3.064us 66.625Hz 15.009ms 13.723ms 0.086ms 1.115ms 0.085ms 26.413us 20.317us 1.270us 3.810us 1.016us 72.810Hz 13.734ms 12.678ms 0.079ms 0.528ms 0.449ms 26.667us 20.317us 2.032us 3.810us 0.508us 75.000Hz 13.333ms 12.800ms 0.080ms 0.427ms 0.026ms 31.777us 25.422us 3.813us 1.907us 0.635us 70.087Hz 14.268ms 12.711ms 0.064ms 1.112ms 0.381ms 28.444us 22.222us 2.000us 3.556us 0.666us 56.250Hz 17.778ms 17.067ms 0.057ms 0.626ms 0.028ms 26.400us 20.000us 3.200us 2.200us 1us 60.317Hz 16.579ms 15.840ms 0.106ms 0.607ms 0.026ms 20.800us 16.000us 2.400us 1.280us 1.12us 72.188Hz 13.853ms 12.480ms 0.125ms 0.478ms 0.77ms 21.333us 16.162us 1.616us 3.232us 0.323us 75.000Hz 13.333ms 12.800ms 0.064ms 0.448ms 0.021ms 20.364us 15.127us 2.182us 1.745us 1.31us 75.087Hz 13.318ms 12.707ms 0.061ms 0.428ms 0.122ms
D-Back
Porch
E-Front
Porch F . V A-Period B-Active C-Sync.width D-Back Porch E-Front Porch H/V SYNC
NON
Interlaced
NON
NON
NON
NON
NON
NON
NON
NON
NON
Preset Modes
VESA VESA VESA VESA VESA 1024X768 1024X768 1024X768 1280X1024 1280X1024 65.000MHz 48.363KHz 75.000MH 78.750MHz 108.00MhZ 135.00MHz z 56.476KH 60.023KHz 63.98KHz 79.976KHz z 15.630us 11.852us 1.037us 2.296us 0.444us 60.020Hz 16.661ms 16.005ms 0.047ms 0.594ms 0.016ms 12.504us 9.481us 1.067us 1.837us 0.119us 75.025Hz 13.329ms 12.804ms 0.038ms 0.475ms 0.013ms
Dot Rate F.H
A-period B-Active C-Sync.width th D-Back Porch E-Front Porch F . V A-Period B-Active C-Sync.width D-Back Porch E-Front Porch H/V SYNC Interlaced
20.677us 17.707us 16.660us 15.754us 13.653us 13.003us 2.092us 2.462us 0.369us 1.813us 1.920us 0.321us 1.219us 2.235us 0.203us
60.004Hz 70.069Hz 75.029Hz 16.666ms 14.272ms 13.328ms 15.880ms 13.599ms 12.795ms 0.124ms 0.600ms 0.062ms 0.106ms 0.513ms 0.054ms 0.050ms 0.466ms 0.017ms
NON
NON
NON
NON
NON
D. CONTROL LOCATION
Font control panel
1. 2. 3. 4. 5.
Power Button 2. LED (Power Display) Menu Button Select Button Auto Button
E. CONDUCTION VIEW
MAIN (Component Side)
BOARD
MAIN BOARD (Component Side)
MAIN BOARD (Solid Side)
F. ADJUSTMENT PROCEDURE
ITEM Program Menu.
Test Meter Test Point Pattern Digital Voltmeter CN7 Crosshatch Pattern (31.5KHz,640x480)
Operation
Check Value
B+ Check A
1. Plug power cable into the adapter, check adapter power indicator light up green. 2. Make sure the voltage of the power plug (CN7) on the main PCB to the value shown at right.
12.0V ±0.2V
Power Saving Wattmeter Check PC or Pattern B generator Crosshatch Pattern (31.5KHz,640x480) Into Factory PC or Pattern mode generator C Crosshatch Pattern (31.5KHz,640x480)
1. Unplug the signal cable into the monitor. 2. Turn the power switch of the monitor ON. 3. Check monitor power indicator light up orange. 4. Make sure the wattmeter value shown at right. 5. OSD will be display "NO SIGNAL" Picture. 1. Hold < key,then turn the power switch of the monitor OFF. 2. Hold > key,then turn the power switch of the monitor ON. 3. You can into factory adjustment mode. 1. Press and relese the MENU knob to activate the OSD menu. 2. Move the OSD to the AUTO function,press MENU key auto adjuat display mode to its utmost performance according to VGA setting. 3. In the event of the display image needs further adjustment
< 2.5W
Auto mode Check D
PC or Pattern generator Crosshatch Pattern (1024x768/60Hz)
E
White Balance Adjust
PC or Pattern generator White Pattern (1024x768/60Hz)
1. Move the OSD to the COLOR mode (AUTO COLOR). 2. set color is 9300°K using the OSD,Check the value shown at right. Y = 220±0.1FL x = 0.283±0.01 y = 0.297±0.01 3. set color is 6500°K using the OSD,Check the value shown at right. Y = 220±0.1FL x = 0.313±0.01 y = 0.329±0.01 1. Move the OSD to the LANGUAGE mode. 2. You can choose one of the eight language you need.
OSD F Language Setting
PC or Pattern generator
G. TROUBLE SHOOTING HINTS
No Display ( Black )
LED ON ?
NO
Power adapter ?
NO
Change adapter
YES
YES
Push the power ON/OFF switch
LED Color change ?
NO
YES
Back light ON?
NO
YES
To Step 2
Check main board U2/Pin2
Check the CN1/Pin1 of Inverter
High Voltage !
Hi / Lo under push power sw?
+12V ?
YES YES
NO
Make sure the connection of Inverter is fine
NO
To Step 2
NO
Display ?
A
Check F1(Fuse) of inverter
YES
B
Nice Job !
A
B
Check the connection of CN8 cable
NO
Hi / Lo under push power sw?
YES
Change the main board
Display ?
YES
Change the Inverter
NO
Nice Job ! Display ?
YES
Change the main board
NO
Nice Job !
To Step 2
Step 2
Check the main board 12V ?
NO
Check F1,D5
YES NO
+5.0 V ?
Check U10,U11,TR1
YES
Check the main board U7 / Pin 5 ?
YES
YES
Check U7
H/V input Signal ?
YES
Change U9
NO
Check H/V Signal
Display ?
NO
Change Signal Cable
YES
Nice Job !
No display (White)
Check the main board 5V ?
NO
Check U10,U11,TR1
YES
+3.3V ?
NO
Check U8,U13
YES
Check the main board U9/Pin3 ?
NO
Check 3.3V Circuit
YES YES
H/V Input Signal ?
NO
Change U9
Check H/V Signal
Display ?
NO
Change Signal Cable
YES
Nice Job ! .
H. BLOCK DIAGRAM
VSYNC HSYNC
VGA-IN 12PIN
C O N N E N T
ADC
SCALER
8 R0~R7
LVDS
8 RA0~RA7 8 GA0~GA7 10 EVEN
LCD PANEL(LVDS)
3 {R.G.B} DDC-SDA DDC-SCL
8 G0~G7 8 BA0~BA7 8 B0~B7 8 RB0~RB7 8 GB0~GB7
D-DE
LVDS
D.D.C
24C21
EEPROM
CRYSTAL
8 BB0~BB7
10 ODD
24C16 EEPROM
12M HZ MCU INVERTER
BLK-ON/OFF BRIGHTNESS
HI VOLTAGE
POWER
SWITCH POWER SUPPLY AND REGULATOR
SDA SCL
8PIN 3V 5V CRYSTAL
C O N N E N T
12V
12V
POWER ADAPTER
12M HZ 12V
Title
FUNCTION KEY
BLOCK DIAGRAM
Document Number
Size B Date:
ORION
Rev B
Tuesday, October 23, 2001
Sheet
1
of
1
I.SCHEMATIC DIAGRA
.
Memu.