AOC LM960 User manual

AOC LM960
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19” LCD Monitor
EN9600
LM960S
LM960
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS
BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF
THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE LIABILITY FOR CHANGES,
ERRORS OR OMISSIONS.
MANUFACTURE DATE: Aug-24-2005
SERVICE MANUAL
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AOC LM960
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REVISION DATE MODIFIACTION
A00 Aug-24-2005
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AOC LM960
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TABLE OF CONTENTS
Revision List ---------------------------------------------------------------------------------- 02
Table of Contents ---------------------------------------------------------------------------------------- 03
1. Monitor Specifications --------------------------------------------------------------------------------04
2.LCD Monitor Description -----------------------------------------------------------------------05
3.Operation Instructions --------------------------------------------------------------------------06
3.1 General Instructions -----------------------------------------------------------------------06
3.2 Control Button ------------------------------------------------------------------------------06
3.3 Adjusting The Picture ---------------------------------------------------------------------07～08
4. Input/Output Specification ------------------------------------------------------------------- 09
4.1 Input Signal Connector -------------------------------------------------------------------09
4.2 Factory Preset Display Modes ----------------------------------------------------------10
4.3 Power Supply Requirements ------------------------------------------------------------10
5.Panel Specification----------------------------------------------------------------------------------12
5.1 General Feature ----------------------------------------------------------------------------12
5.2 Optical Characteristics --------------------------------------------------------------------13
6. Block Diagram -----------------------------------------------------------------------------------13
6.1 Monitor Exploded View ------------------------------------------------------------------13
6.2 Software Flow Chart -----------------------------------------------------------------------14～15
6.3 Electrical Block Diagram -----------------------------------------------------------------16～17
7. Schematic -----------------------------------------------------------------------------------------18
7.1 Scalar Board ---------------------------------------------------------------------------------18～23
7.2 Power Board -------------------------------------------------------------------------24～26
8. PCB Layout ---------------------------------------------------------------------------------------27
8.1 Main Board ----------------------------------------------------------------------------------27
8.2 Power Board --------------------------------------------------------------------------------28
8.3 KEY Board ------------------------------------------------------------------------------ 28
9. Maintainability -----------------------------------------------------------------------------------29
9.1 Equipments and Tools Requirements -------------------------------------------------29
9.2 Trouble Shooting ---------------------------------------------------------------------------30～35
10. White-Balance, Luminance Adjustment ----------------------------------------------- 36
11. Check List after replacing LCD Main board----------------------------------------------- 37～39
12. EDID Content ---------------------------------------------------------------40
13. BOM List ----------------------------------------------------------------------------------41～54
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AOC LM960
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1. MONITOR SPECIFICATIONS
Driving system TFT LCD
Size 48cm(19")
Type HSD190ME12 (HSD)
Pixel pitch 0.294mm(H) x 0.294mm(V)
Viewing angle 140(H) 130(V) (R>10)
Luminance 250cd/m2
Contrast Ratio 500:1
Response time 16ms (typ)
LCD Panel
Display colors 16.2 million Colors
R G B Analog 0.7Vp-p
H/V separate TTL level
H/V composite TTL level
Horizontal frequency 30kHz–83kHz
Vertical rate 55-75Hz
Input signals
Recommend resolution 1280 x 1024@75HZ
ON MODEL ≤50W
Power consumption OFF MODEL ≤2W
Power supply AC voltage 100~240VAC,47~63Hz
Operating condition Temperature 5-50°C
Storage Condition Temperature -20-60°C
Dimension Unpackaged 423 mm (W) x 429mm (H) x 215mm (D)
Maximum Screen Size Horizontal: 376.32mm，Vertical: 301.056mm
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AOC LM960
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2. LCD MONITOR DESCRIPTION
The LCD MONITOR will contain a main board, a power board and a keypad board which house the flat panel control
logic, brightness control logic and DDC.
The power board will provideAC to DC Inverter voltage to drive the backlight of panel and the main board chips each
voltage.
PWPC board
(
Include: ada
p
ter, inverter
)
Flat Panel and
CCFL backlight
Main Board
Keyboard
RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFT Drive.
AC-IN
100V-240V Video signal, DDC
Monitor Block Diagram
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3. OPERATING INSTRUCTIONS
3.1 GENERAL INSTRUCTIONS
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the
monitor. By changing these settings, the picture can be adjusted to your personal preferences.
•The power cord should be connected.
•Connect the video cable from the monitor to the video card.
•Press the power button to turn on the monitor position. The power indicator will light up.
3.2 FRONT PANEL CONTROL
1. MENU / ENTER 2. / Contrast
3. Power Button/ LED 4. / Brightness
5. AutoAdjustbutton/Exit
FRONT PANEL CONTROL
•Power Button:
Press this button to turn the monitor ON or OFF.
•Power Indicator:
Blue — Power On mode.
Orange —Off mode.
•MENU / ENTER :
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD
menu when in Brightness/ ContrastAdjust OSD status.
•Brightness / :
Adjust brightness or function adjust.
•Contrast / :
Adjust contrast or function adjusts.
•Auto Adjust button / Exit:
1.When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu).
2. When OSD menu is in off status, press this button for 2 seconds to activate the Auto Adjustment function.
The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus.
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3.3 ADJUSTING THE PICTURE
THE DESCRIPTION FOR CONTROL FUNCTION:
Main Menu
Item
Main
Menu
Icon
Sub Menu
Item
Sub Menu
Icon Description Adjust Range Reset Value
Contrast Contrast from Digital-register. 0-100 Recall Cool
Contrast Value
Luminance Brightness Backlight Adjustment 0-100 Recall Cool
Brightness Value
Focus
Adjust Picture Phase to reduce
Horizontal-Line noise 0-100 Do Auto Config
Image Setup Clock
Adjust picture Clock to reduce
Vertical-Line noise. 0-100 Do Auto Config
H. Position
Adjust the horizontal position of the
picture. 0-100 Do Auto Config
Image
Position V. Position
Adjust the vertical position of the
picture. 0-100 Do Auto Config
C1 N/A
Recall warm C1 Temperature from
EEPROM. N/A
C2 N/A
Recall cool C2 Temperature from
EEPROM. N/A
User / Red Red Gain from Digital-register. 0-100
User /
Green Green Gain from Digital-register. 0-100
User / Blue Blue Gain from Digital-register. 0-100
The Color
Temperature will
be set to Cool.
The User R/G/B
value (default is
100) will not be
Modified by Reset
function.
Color Temp.
sRGB N/A Recall sRGB from EEPROM. N/A sRGB
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AOC LM960
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Yes N/A
A
uto Adjust the H/V Position, Focus
and Clock of picture. N/A N/A
Auto Config
(Analog-Only
Model) No N/A
Do not execute Auto Config, return
to main menu. N/A N/A
H. Position
Adjust the horizontal position of the
OSD. 0-100 50
V. Position
Adjust the vertical position of the
OSD. 0-100 50
OSD Setup
OSD
Timeout Adjust the OSD timeout. 10-120 10
English N/A Set OSD display language to
English. N/A
Deutsch N/A Set OSD display language to
German. N/A
Français N/A Set OSD display language to
French. N/A
Español N/A Set OSD display language to Spain. N/A
Language
Italiano N/A Set OSD display language to Italian. N/A
The Language
will be set to
English.
Information Information N/A
Show the resolution, H/V frequency
and input port of current input
timing.
N/A N/A
Yes N/A
Clear each old status of
Auto-configuration and set the color
temperature to Cool.
N/A N/A
Reset
No N/A
Do not execute reset, return to main
menu. N/A N/A
Exit N/A N/A Exit OSD N/A N/A
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4. INPUT/OUTPUT SPECIFICATION
4.1 INPUT SIGNAL CONNECTOR
ANALOG D-SUB CONNECTOR
PIN NO. DESCRIPTION PI N NO. DESCRIPTION
1. Red 9. +5V
2. Green 10. Detect Cable
3. Blue 11. TXD
4. RXD 12. DDC-Serial Data
5. Ground 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
VGA connector layout
15
610
11 15
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AOC LM960
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4.2 FACTORY PRESET DISPLAY MODES
STANDARD RESOLUTION HORIZONTAL
FREQUENCY
VERTICAL
FREQUENCY
Dos-mode 720 x 400 31.47kHz 70.0Hz
640 × 480 31.47kHz 60.0Hz
VGA 640 × 480 37.50kHz 75.0Hz
800 × 600 37.879kHz 60.0Hz
SVGA 800 × 600 46.875kHz 75.0Hz
1024 × 768 48.363kHz 60.0Hz
1024 × 768 56.476kHz 70.0Hz
XGA
1024 × 768 60.021kHz 75.0Hz
1280 × 1024 64.000kHz 60.0Hz
SXGA 1280 × 1024 80.000kHz 75.0Hz
4.3 POWER SUPPLY REQUIREMENT
A/C Line voltage range : 100 V ~ 240 V
A/C Line frequency range : 50 ±3Hz, 60 ±3Hz
Current : 1.5A max at 100V; 0.8A max at 240 V
Peak surge current : < 55A peak at 240 VAC and cold starting
Leakage current : < 3.5mA
Power line surge : No advance effects (no loss of information or defect)
with a maximum of 1 half-wave missing per second
Voltage : 5VDC ± 5％;12VDC ± 5％
CURRENT : 1.5Amp (5V) ；2 Amp (12V)
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