Table of Contents
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1. ELECTRICAL REQUIREMENTS.................................................................................... 2
A. LCD Panel Specification............................................................................................................................ 2
B. CONTROLS .............................................................................................................................................. 3
C. Power Management .................................................................................................................................. 3
D. Display Modes FOR Inspections ............................................................................................................... 5
2. ADJUSTMENT CONDITIONS......................................................................................... 6
A. Measuring Apparatuses Used ................................................................................................................... 6
B. Input Signal................................................................................................................................................ 6
C. Indication ................................................................................................................................................... 6
4. ADJUSTMENT OF BOARDS.......................................................................................... 7
A. Connection Method ................................................................................................................................... 7
5. VL-547 DISPLAY CONTROL BOARD............................................................................ 7
A. Description................................................................................................................................................. 7
B. Features .................................................................................................................................................... 7
C. Block Diagram (Control CKT).................................................................................................................... 8
D. Connector Locations.................................................................................................................................. 9
E. Connector Type ......................................................................................................................................... 9
F. Connector pin assignment....................................................................................................................... 10
6. VK-546 CONTROL PANEL BOARD............................................................................. 13
A. Description............................................................................................................................................... 13
B. Connector and Switch Locations ............................................................................................................. 13
C. Connector type ........................................................................................................................................ 13
D. Connector pin Assignment ...................................................................................................................... 14
7. POWER BOARD........................................................................................................... 15
A. Description............................................................................................................................................... 15
B. Electrical characteristics .......................................................................................................................... 15
C. Connector locations................................................................................................................................. 16
8. CIRCUIT DESCRPTION ............................................................................................... 17
A. Micro-Controller Circuit............................................................................................................................ 17
B. Circuit of Plug and Play ........................................................................................................................... 17
C. System Clock........................................................................................................................................... 17
D. Image Engine (Zoom).............................................................................................................................. 17
E. Power Regulator...................................................................................................................................... 17
9. INTRODUCTION ........................................................................................................... 18
A. Front Panel Control and Led ................................................................................................................... 18
B. Rear Panel connector Input Signals ........................................................................................................ 19
10.TROUBLESHOOTING................................................................................................. 20
A. Main Procedure ....................................................................................................................................... 20
APPENDIX A: DISPLAY UNIT ASSEMBLY.................................................................... 25
APPENDIX A: DISPLAY UNIT ASSEMBLY..................................................................... 35
...................................................................... 6
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Table of Contents
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Summary of Contents for Acer AL511
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Page 1: Table Of Contents
1. ELECTRICAL REQUIREMENTS... 2 A. LCD Panel Specification... 2 B. CONTROLS ... 3 C. Power Management ... 3 D. Display Modes FOR Inspections ... 5 2. ADJUSTMENT CONDITIONS... 6 A. Measuring Apparatuses Used ... 6 B. Input Signal... 6 C. Indication ... 6 3. -
Page 2: Electrical Requirements
1. 1. ELECTRICAL REQUIREMENTS A. LCD Panel Specification Display: Compatibility: Synchronization Frequencies: Resolution: Active Display Area: Viewing Angles: Display Colors: Power Supply: Power Consumption: Environmental: 15 inch (15” viewable image size): active matrix: thin film transistor (TFT): liquid crystal display (LCD): 0.297 mm dot pitch: R.G.B. Vertical stripe 200 cd//m white luminance, typical: 300:1 contrast ratio, typical... -
Page 3: Controls
B. CONTROLS B-1 Control panel (monitor front panel) 1. Power LED, ( Please refer to C-2 LED definition table) 2. Adjust decrease. 3. Adjust increase 4. Function select counter-clockwise. 5. Function select clockwise. 6. Power ON/OFF switch, push to ON and push to OFF. (toggle switch) C. - Page 4 C-2 LED definition Table State On mode Stand-by Suspend Off mode power off disconnection C-3 Power Consumption Meet VESA DPMS Proposal On mode Stand-by Suspend Off mode DC power off disconnection Measured from AC input, and not include audio at power-saving state The stand-by, suspend and off mode recover to on mode about 3 seconds.
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Page 5: Display Modes For Inspections
D. Display Modes FOR Inspections D-1 Supported Timing(for Not supported timing will go to power saving mode)T FH(KHZ) TIMING FV(HZ) POLARITY 31.469 640x350 VGA-350 70.087 24.83 640x400 NEC PC9801 56.42 31.469 640x400 VGA-GRAPH 70.087 31.5 640x400 NEC PC9821 70.15 31.469 640x480 VGA-480 59.94... -
Page 6: Adjustment Conditions
2. ADJUSTMENT CONDITIONS A. Measuring Apparatuses Used Necessary measuring equipment that for the adjustment of LA-1221JMW’s MAIN PWB are following items. Adjusted Video Generator. Oscilloscope (more than 4 channels required) DC voltmeter B. Input Signal Input signal by using video signal generator with VGA Card port for this adjustment. C. -
Page 7: Adjustment Of Boards
4. ADJUSTMENT OF BOARDS Equipment is connected with boards to be inspected before adjustments. Refer to diagram below. A. Connection Method 1. R.G.B Signal Cable 2. DC Power Cable 3. LCD Lamp Cables 4. Control Cable 5. VL-547 DISPLAY CONTROL BOARD A. -
Page 8: Block Diagram (Control Ckt)
C. Block Diagram (Control CKT) System Level Interface with Integrated Timing Controller C-1 Sage Operation The s9050-100 is highly-integrated display processors. It has an ADC/PLL block and a microprocessor integrated on a single chip. The cost-effective s9050-100 is suitable for the XGA and the s9050 for the SXGA market segment with smaller memory requirements. -
Page 9: Connector Locations
D. Connector Locations E. Connector Type Location Type DZ11A91-L8 P1.524 96113-1003 96113-0703 98210-4011 98210-4011 Maker Number of pins FEMALE E&T E&T E&T E&T... -
Page 10: Connector Pin Assignment
F. Connector pin assignment F-1 CN1 Pin NO. Signal R-Video G-Video B-Video Ground Ground Ground Ground Ground 5V-DCC Ground Ground DDC-SDA DDC-SCL Comment Red Video Input. Green Video Input. Blue Video Input. Ground Ground Ground. Ground. Ground DDC Power Input. Ground Ground DDC 2B Data... - Page 12 F-3 J2 Pin NO. Signal NONE LED-Y LED-G KEY-UP KEY-Down KEY-R KEY-L KEY-POWER F-4 J3 Pin NO. Signal BLON MUTE BRIGHT Comment Power saving mode Monitor is ON Function select counter-clockwise key Function select counter-clockwise key Adjust up key Adjust down key Power ON/OFF key Comment VL547 power input...
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Page 13: Vk-546 Control Panel Board
6. VK-546 Control Panel Board A. Description The VK-546 is designed to offer an user interfaced control panel which passes and receives signals to and from power board . B. Connector and Switch Locations C. Connector type Location Type 96113-1013 Maker Number of pins E&T... -
Page 14: Connector Pin Assignment
D. Connector pin Assignment D-1 J5 Pin NO. Signal NONE LED-Y LED-G 4,10 KEY-UP KEY-DOWN KEY-R KEY-L KEY-PWR D-2 Switch definition Location Definition Function select by clockwise direction Adjust down Adjust up Function select by counter-clockwise direction Power ON/OFF D-3 LED definition Location Definition Green for ON mode;... -
Page 15: Power Board
7. POWER BOARD A. Description There are three kind of circuits in this power board-AC/AC, inverter and audio B. Electrical characteristics B-1 FOR HANNSTAR PANEL INPUT VOLTAGE INPUT CURRENT BACKLIGHT VOLTAGE LAMP CURRENT DRIVING FREQUENCY EFFICIENCY Operating Life Time Note: Life time(Hr) can be defined as the time in which it continues to operate under the condition: Ta=25±3°C, I... -
Page 16: Connector Locations
C. Connector locations PK100007500 PK100007510 CON1 CON2 J802 INLET C-1 Connector type Location Type CON1 SM02(8.0)B-BHS-1 CON2 SM02(8.0)B-BHS-1 J802 CON3 96113-00703 C-2 Connector pin assisnment C.2.1 CON1 & CON2 Pin NO Signal C.2.2 CON3 Pin NO Signal Mute Vhri CON3 Maker E&T Comment... -
Page 17: Circuit Descrption
8. CIRCUIT DESCRPTION A. Micro-Controller Circuit The U5 (s9050-100) is a system controller. The Y1 is 14.318MHz XTAL. B. Circuit of Plug and Play Plug and play allows the serial communication of host PC and peripherals offering minimal configurations to end users. This monitor supports DDC2B communication protocal. SDATA and VCLK are input to U4 (24LC21A). -
Page 18: Introduction
9. INTRODUCTION A. Front Panel Control and Led Item Control DC Power Switch DC Power-On Indicator Function Select Buttons Adjustment Control Buttons Front Panel Controls Function Press the power switch to switch the monitor ON/OFF. LED lights Green color --- Power is ON. LED lights Yellow --- Monitor is in "Power Saving Mode". -
Page 19: Rear Panel Connector Input Signals
B. Rear Panel connector Input Signals Item Cable / Connector Signal Cable 2 AC IN Power Connect Rear Panel Cable and Connector Connect the video port Connect the AC power cord Function... -
Page 20: Troubleshooting
10. TROUBLESHOOTING A. Main Procedure... - Page 21 A-1 Power Circuit Troubleshooting...
- Page 22 A-2 Backlights Troubleshooting...
- Page 23 A-3 Performance Troubleshooting...
- Page 24 A-4 Function Troubleshooting...
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