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Acer AL2002 AL2002 Service Guide - Page 49

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Model Name: ACER_AL2002W Model Number: 4092531143P Description: T20BNUW-G1(99)#U14(C)_ACER_AL2002W BOARD ASSY'S CKD_ID FOR U.S.A. (LITE-ON Part No.) 0 5112403532P 0 5113102727P 0 5113301834P 0 5113800401P 0 5114300811P DESCRIPTION T20BNUW-G1_ACER_PACKING ASSY T20BNUW-G1(99)_ACER_LCD ASSY T20BNUW-G1_ACER_INTERFACE BD T20BAUW-G_LITEON_FUNCTION KEY BD T20BAUW-G_LITEON_POWER BD CAPACITORS CKD_ID FOR U.S.A. (LITE-ON Part No.) C101 C102 C103 C104 C105 C106 C108 C109 C110 C111 C115 C116 C117 C120 C123 C125 C127 C127 C128 C128 C129 C129 C130 C130 C131 C132 C133 C134 C134 C135 C135 C301 C302 C305 C306 C307 C308 C309 C310 6338110485P 6311522045P 6311522945P 6331133125P30 6338210215P 6338147385P 6331168055P30 6357122355P 6311522945P 6338210215P 6338547115P 6334950912P30 6334910082P30 6338547115P 6334910082P30 6334950912P30 6311433145P10 6311433145P22 6311433145P10 6311433145P22 6311422145P10 6311422145P22 6311422145P10 6311422145P22 6357122355P 6338210215P 6338210215P 6311433145P10 6311433145P22 6311433145P10 6311433145P22 6373410486P01 6373410486P01 6373410486P01 6373410486P01 6311310142P20 6373410486P01 6373410486P01 6311210069P10 DESCRIPTION CAP. CD_UF_0.1_50V_Z_T_Y5V CAP. ALU_uF_22_50V_T_105C_5x11 CAP. ALU_uF_2.2_50V_T_105C_5x11 CAP. CD_pF_330_50V_G_T_NPO_SEC CAP. CD_pF_1000_100V_K_T_X7R CAP. CD_uF_0.047_50V_Z_T_Y5V CAP CD_pF_68_50V_J_T_NPO_SUCCESS CAP. PEM_uF_0.022_50V_J_T CAP. ALU_uF_2.2_50V_T_105C_5x11 CAP. CD_pF_1000_100V_K_T_X7R CAP. CD_pF_470_1000V_K_T_X7R CAP.CD_pF_5_3000V_K_L4P7.5_SL_SUCCESS CAP. CD_pF_10_3000V_K_F_P=7.5_SL_SUCCESS CAP. CD_pF_470_1000V_K_T_X7R CAP. CD_pF_10_3000V_K_F_P=7.5_SL_SUCCESS CAP.CD_pF_5_3000V_K_L4P7.5_SL_SUCCESS CAP.ALU_uF_330_35V_T_105C_10x16_KF/CAPXO CAP.ALU_uF_330_35V_T_105C_10x16_MC CAP.ALU_uF_330_35V_T_105C_10x16_KF/CAPXO CAP.ALU_uF_330_35V_T_105C_10x16_MC CAP.ALU_uF_220_35V_T_105C_10x12.5_KF/CAP CAP.ALU_uF_220_35V_T_105C_10x13_MC CAP.ALU_uF_220_35V_T_105C_10x12.5_KF/CAP CAP.ALU_uF_220_35V_T_105C_10x13_MC CAP. PEM_uF_0.022_50V_J_T CAP. CD_pF_1000_100V_K_T_X7R CAP. CD_pF_1000_100V_K_T_X7R CAP.ALU_uF_330_35V_T_105C_10x16_KF/CAPXO CAP.ALU_uF_330_35V_T_105C_10x16_MC CAP.ALU_uF_330_35V_T_105C_10x16_KF/CAPXO CAP.ALU_uF_330_35V_T_105C_10x16_MC CAP. MC_uF_0.1_25V_Z_Y5V_SMD_603_SMD CAP. MC_uF_0.1_25V_Z_Y5V_SMD_603_SMD CAP. MC_uF_0.1_25V_Z_Y5V_SMD_603_SMD CAP. MC_uF_0.1_25V_Z_Y5V_SMD_603_SMD CAP.ALU_uF_100_25V_L3.5P2.5_105C_6.3x11_ CAP. MC_uF_0.1_25V_Z_Y5V_SMD_603_SMD CAP. MC_uF_0.1_25V_Z_Y5V_SMD_603_SMD CAP. ALU_uF_10_16V_F/P=2/L=4_105C_4X7 Page 1 of 12

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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