ACER AL708 LcdWARNING ASAFETY PRECAUTIONS BDIMENSIONS 1GENERAL INFORMATION 2SPECIFICATIONS 3THEORY OF OPERATION 4DISASSEMBLY INSTRUCTIONS 5C

f) Panel Power Sequencing ( PPWR, PBIAS) ( Pin 113~114)20 has two dedicated outputs PPWR and PBIAS ( Pin113 and Pin114) to control LCD power sequen

4.1.3 Power Regulator AIC1563 (U12),LT1117 (U5, U6)The AIC1563 is a monolithic control IC containing the primary functions required for DC to DC conve

4.4 AdapterThis is a general purpose AC / DC adapter which converter 90~240 Vac to a stabilized DC voltage 12 V with rated output current of 4.16A . E

5. DISASSEMBLY INSTRUCTIONS1. Stand& rear cover removal1) remove four large screw "1" from the rear cover2) remove the rear cover3)

4. Inverter board removal1) remove two screw "5"2) remove the Inverter board6. Panel module removal1) remove four screw "6"2) remo

6. CONTROL LOCATIONExamples of on-screen operationA. Brightness / Contrast AdjustmentBrightness. Press the △ and ▽ buttons toadjust the brightness o

Vertical position. Press the △ and ▽ buttonsto move image up and down.Horizontal position. Press the ＜l and l＞button to move image left and right.The

7. NECESSARY EQUIPMENT LISTItem1 Personal Computer with Windows 98 or above version2 Luminance Meter Minolta CA 1103 Video Gnerator : Chroma 2000,2135

8. L7EA (AL708) BLOCK DIAGRAM~1 ~VideoL7EA(AL708) 8-1

8. L7EA (AL708) BLOCK DIAGRAM~2 ~AudioL7EA(AL708) 8-2

SAFETY PRECAUTIONS1. CAUTION: 4-6 Voltage measured must not exceed 1.5 voltNo modification of any circuit should be attempted. RMS, from any

8. L7EA (AL708) BLOCK DIAGRAM-3 ~PowerL7EA(AL708) 8-3

9. CONDUCTOR VIEW 1~3MB board L7EA (AL708) 9-1

Audio boardButton boardL7EA (AL708) 9-2

10. SCHEMATIC DIAGRAM~1 Input connectorC105 0.01u/6HCLK 4R10047K/6VsyncGNDPins 6/7/8 are R/G/Breturn lines resp.U14NC7WZ14P6/NS125346A1GND VCCA2 Y2Y1

10. SCHEMATIC DIAGRAM~2 Scaler gm2120EB4A6D03.3V_DVDDRMADDR2C15715p/412C1190.1u/6R52 10K/6RMDATA3EB7RMADDR15A13RMADDR2R44 22/6R45 22/6GPIO1/PWM1OG6A11

10. SCHEMATIC DIAGRAM~3 ConnectorGNDDARED6C61 15p/412OR0DBGRN6RN1310K12345678R99 22/812C13712p/6C24 15p/412GNDER3R14110K/6DABLU5DBRED6C83 15p/412R144

10. SCHEMATIC DIAGRAM~4 LVDS-IFTXODD3+C722u/25VU2DS90CF383MTDTSSOP565152545556234678101112141516181920223132484746454241403944494336343533513212953191

10. SCHEMATIC DIAGRAM~5 PowerC153330u/16V+5VR53120/812D8RB081L-2021GNDCN4+12V INPUTR36330/812+C68100u/25VGNDGNDL14CX000800000/1206R111330K/6C1430.1u

10. SCHEMATIC DIAGRAM~6 Button boardRIGHQuanta Computer Inc.PROJECT : L7EUPBUTTON-BOARDAL7E22Friday, May 24, 2002TitleSize Document Number RevDate: Sh

10. SCHEMATIC DIAGRAM~7 Audio1H201MTH276D1262345 6789AGNDR_LINER5 0/81 2SPKOUTR+12VZD0417C10.1U/812C41U/50VL1 CX000800000/1206R3 0/81 2MUTECN1ZD005D

1. DIMENSIONS~1 unit : mmFront SideRear SideL7EA (AL708) 1-1

11. TROUBLE SHOOTING HINTS1. No Power2. No Characters , Missing one Color L7EA (AL708) 12-1

3. No AudioL7EA (AL708) 12-2

12. REPLACEMENT PARTS LIST~1Audio boardSymbol PARTS NO. DescripitionCN1 DFHD03MR065 CONN DIP HEADER 3P 1R MR(P1.5,H4.1)CN2 DFHD04MR124 CONN DIP HEADER

13. REPLACEMENT PARTS LIST~4MB boardReference Material DescripitionCN4 DFPJ03MR140 CONN POWER JACK 3P MRFUSE1 DK400WFU001 FUSE SMD 4A/32V,FAST(UL/CSA,

R131R36 CS13304FA06 RESISTOR CHIP 330 1/8W+-1%(0805)R30 CS12004FA02 RESISTOR CHIP 200 1/8W,+-1%(0805)R124 CS00006J205 RESISTOR CHIP 0 1/4W+-5%(3216)RN

C164,C165,C166,C167,C168C169,C170,C171,C172,C173C174,C175,C176,C177,C178C179,C180,C181C5,C6,C7,C8,C40 CC63303MD24 CAP ELEC 33U 16V(+-20%,105C,5*7,LESR

13. SPARTS PARTS LISTPart No. Description Remark1 45LM7AB0008 LM7S AUDIO/B ASSY Audio Board2 33LM7BB0001 LM7S BUTTON/B ASSY Button Board3 31L7EMB0007

1. DIMENSIONS~2 unit : mmBase UnitSide ViewL7EA (AL708) 1-2

2. GENERAL INFORMATION1. OUTLINE 2.8 Superior display performanceThis monitor is 17" multi-scan color LCD display High contrast :

3. SPECIFICATION1. Outline 4.2 Audio : Line-in receptacle1.1 POWER SW, LED,UP.DN,LEFT,RIGHT,SEL and MENU key are located on the f

5. ELECTRICAL SPECIFICATIONS 5.4 Preset Timings5.1 Standard conditions5.2 POWER5.2.1 Power supply5.2.2 Power Management5.5 Signal level and input impe

5.6 Display Area 6. ENVIRONMENTS Display area : 338 x 270 mm5.7 General performance5.7.1 Maximum pixel clock 135 MHz5.7.2 Maximum luminanc

4. THEORY OF OPERATIONThis section describes the function of the LCD monitor per functional block.L7EA monitor includes MB board, audio board (option)