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Acer AL2002 AL2002 Service Guide - Page 7

Note : 2.2k, to Ground, Schmitt-Triggers Input, Supported 3.3V device H & V sync. Output.

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D. Flat Panel Connector 6 Go to cover page 3.4. Input Signals (Analog RGB Signal Input): 3.4.1. Video Input Signal Ranges No. Symbol Item Min Normal Max Unit Remark 1 Fh Horizontal Frequency 30 81 kHz Minimum range 2 Fv Vertical Frequency 56 76 Hz Minimum range 3 Fclk Locked Pixel Clock Frequency 165 MHz 4 Vih Hi Level Input 2.0 5.0 V Note 1) 5 Vil Low Level Input 0 0.8 V Note 1) 6 Video RGB Analog Video Level 0.0 0.735 V 75Ω to Ground Note : 2.2kΩ to Ground, Schmitt-Triggers Input, Supported 3.3V device H & V sync. Output.

Section	Page
acer_lcd_al2002w_SM061206V0_ch1_11.pdf	1
Cover Page	1
Important Safety Notice	2
1. Product Overview	3
2. GENERAL REQUIREMENTS	3
2.1 Test Condition	3
2.2 Test Equipment	4
3. ELECTRICAL RELATED INFORMATION	4
3.1. Product Block Diagram	4
3.2. Product Specification	5
3.3. Interface Connectors	5
3.3.1. Power Connector and Cables	5
3.3.2. Signal Connectors and Cable	6
3.3.3. Connector Pin Assignment	6
3.4. Input Signals (Analog RGB Signal Input)	7
3.4.1. Video Input Signal Ranges	7
3.4.2. Video Signal Amplitudes	8
3.4.3. Video Signal Termination Impedance	8
3.4.4. Synchronization (Sync) Signals	8
3.4.5. Sync Signal Levels	8
3.4.6. Sync Signal Loading	8
3.4.7. Abnormal Signal Immunity	8
3.5. Interface Boards (Digital TMDS Input)	9
3.5.1. Introduction	9
3.5.2. Video Signal Amplitudes	9
3.5.3. Video Signal Termination Impedance	9
3.5.4. Signal Connector (DVI-D 24 pin)	9
3.6. User Controls and Indicators	9
3.6.1. Power On / Off Switch	9
3.6.2. Power Indicator LED	9
3.6.3. On-Screen Display	9
3.7. Monitor Modes and Timing Capability	10
3.7.1. Format and Timing	10
3.7.2. Factory Assigned Display Modes	10
3.7.3. Mode Recognition Pull-in	10
3.7.4. User Display Modes	10
3.8. Controller Requirements	11
3.8.1. General Requirements	11
3.8.2. Video Stretching	11
3.8.3. Panel Timing and Interface	11
3.9. DC - AC Inverter Requirements	11
3.10. Power Supply Requirements	11
3.11. Display Communications Channel	12
4. FLAT PANEL	13
4.1. General Requirements	13
4.2. Panel Timings	13
4.3. Polarizer Hardness	13
4.4. Backlight Requirements	13
4.4.1. General Requirements	13
4.4.2. Lamps Startup Time	13
4.5. Defects	14
4.5.1. Visual Inspection	14
4.5.2. Display Degradation	14
4.5.3. Light Leakage	14
4.5.4. Allowable Defects	14
4.5.5. Defect Terminology	14
4.5.6. Smudges, Streaks and Smears	15
4.5.7. LCD Inspection	15
5. Optical Characteristics	15
5.1. Brightness uniformity	15
5.1.1. Panel 9 test points	15
5.1.2. Brightness Uniformity	15
5.2. Contrast ratio (CR)	16
5.3. Response time	16
5.4. Viewing angles	16
5.5. Chromaticity	17
5.6. Brightness	17
6. Environmental Requirements	17
6.1. Temperature Ranges	17
6.2. Humidity	17
6.3. Altitude	17
6.4. Vibration Test Procedure	18
6.4.1. Vibration System	18
6.4.2. Fixturing	18
6.4.3. Test Axes	18
6.4.4. Random Vibration Spectrum	18
6.4.5. Acceptance Criteria	18
7. RGB settings	18
8. Color grayscale linearity	18
9. PACKING EXPLODED DRAWING	19
10. PRODUCT EXPLODED DIAGRAM	20
11. Schematics and Layouts	21
11.1 ACER_AL2002W (T20BAUW-G1)_BLOCK DIAGRAM	21
11.2 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_POWER BOARD	22
11.3 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_TOP	23
11.4 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_POWER SOURCES CIRCUIT	24
11.5 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_VGA&DDC INTERFACE	25
11.6 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_DVI&DDC INTERFACE	26
11.7 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_SCALER GM5766H	27
11.8 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_KEY & PANEL INTERFACE	28
11.9 ACER_AL2002W (T20BAUW-G1)_SCHEMATICS_KEYPAD	29
11.10 ACER_AL2002W (T20BAUW-G1)_LAYOUTS_POWER BOARD	30
11.11 ACER_AL2002W (T20BAUW-G1)_LAYOUTS_INTERFACE BOARD	31
11.12 ACER_AL2002W (T20BAUW-G1)_LAYOUTS_KEYPAD	32
appendix_4_spare_parts_4092531143P.pdf	49

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