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Acer AL501 Manual
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Acer AL501 Manual

Acer AL501 Manual

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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
A. Adjustment of Switching Regulator (Adapter) ........................................................................................... 6
4. ADJUSTMENT OF BOARDS.......................................................................................... 7
A. Connection Method ................................................................................................................................... 7
5. VL-531 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-531 CONTROL PANEL BOARD............................................................................. 14
A. Description............................................................................................................................................... 14
B. Connector and Switch Locations ............................................................................................................. 14
C. Connector type ........................................................................................................................................ 14
D. Connector pin Assignment ...................................................................................................................... 15
7. VP-531 POWER BOARD.............................................................................................. 17
A. Description............................................................................................................................................... 17
B. Electrical characteristics .......................................................................................................................... 17
C. Connector locations................................................................................................................................. 18
8. CIRCUIT DESCRPTION ............................................................................................... 20
A. Micro-Controller Circuit............................................................................................................................ 20
B. Circuit of Plug and Play ........................................................................................................................... 20
C. System Clock........................................................................................................................................... 20
D. Image Engine (Zoom).............................................................................................................................. 20
E. Power Regulator...................................................................................................................................... 20
9. INTRODUCTION ........................................................................................................... 21
A. Front Panel Control And Led ................................................................................................................... 21
B. Rear Panel Connector Input Signals ....................................................................................................... 22
10.TROUBLESHOOTING................................................................................................. 23
A. Main Procedure ....................................................................................................................................... 23
APPENDIX A: PARATS LISTS............................................................................28
APPENDIX B: DISPLAY UNIT ASSEMBLY...........................................................35
APPENDIX C: P.C.B.A ASSEMBLY.................................................................. ...40
...................................................................... 6
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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.

  • Page 2: Electrical Requirements

    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 DC 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 end of AC power adapter, and not include audio at power-saving state The stand-by, suspend and off mode recover to on mode about 3 seconds.

  • 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. Inverter Cable 4. Control Cable 5. LCD Lamp Cable 5. VL-531 DISPLAY CONTROL BOARD A.

  • Page 8: Block Diagram (Control Ckt)

    C. Block Diagram (Control CKT) 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. Other features include a brand new high-end scaler, Active Color Management, a flexible OSD, Autoadjust, SureSync and independent monitoring of the analog interface.

  • 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 DDC-SDA DDC-SCL Comment Red Video Input. Green Video Input. Blue Video Input. Ground Ground Ground. Ground. Ground DDC Power Input. Ground DDC 2B Data Horizontal Sync Input.
  • Page 11 Terminal No. Symbol Function VDD1 Digital Power Input (DC+3.3V) VDD1 Digital Power Input (DC+3.3V) Ground Ground Odd-dot Blue Data bit 5 (MSB) Odd-dot Blue Data bit 4 Odd-dot Blue Data bit 3 Odd-dot Blue Data bit 2 Odd-dot Blue Data bit 1 Odd-dot Blue Data bit 0 Ground Odd-dot Green Data bit 5 (MSB)
  • Page 12 F-3 CN2 Terminal No. Symbol VDD2 Analog Power Input (DC+9V) VDD2 Analog Power Input (DC+9V) Even-dot Blue Data bit 5(MSB) Even-dot Blue Data bit 4 Even-dot Blue Data bit 3 Even-dot Blue Data bit 2 Even-dot Blue Data bit 1 Even-dot Blue Data bit 0 (LSB) Even-dot Green Data bit 5 (MSB) Even-dot Green Data bit 4...
  • Page 13 F-4 J2 Pin NO. Signal NONE LED-Y LED-G KEY-UP KEY-Down KEY-R KEY-L KEY-POWER F-5 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 VL531 power input...

  • Page 14: Vk-531 Control Panel Board

    6. VK-531 Control Panel Board A. Description The VK-531 is designed to offer an user interfaced control panel which passes and receives signals to and from VP-531 power board . B. Connector and Switch Locations C. Connector type Location Type 96113-1013 Maker Number of pins...

  • Page 15: 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 Comment Power saving mode. Monitor on mode. Ground Function select up to VL-531 Function select down to VL-531 Function select right to VL-531 Function select left to VL-531 Power ON/OFF signal to VL-531...
  • Page 16 Switch definition Location Definition Power ON/OFF Function select by clockwise direction Function select by counter-clockwise direction Adjust up Adjust down D-3 LED definition Location Definition Green for ON mode; Yellow for DC power off; stand by; suspend and off mode.

  • Page 17: Vp-531 Power Board

    7. VP-531 POWER BOARD A. Description The VP-531 power board is designed for lighting up the back-lights of LCD module. B. Electrical characteristics B-1 FOR HANNSTAR PANEL INPUT VOLTAGE INPUT CURRENT NO LOAD 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...

  • Page 18: Connector Locations

    C. Connector locations C-1 Connector type VP-531 Location Type J920,J960 SM02 (8.0)B-BHS-1 96113-0702 J801 SCD-014-I Maker E&T Number of pins...
  • Page 19 C-2 Connector pin assignment C.2.1 J920 & J960 VP-531 Pin NO. Signal C.2.2 J3 Pin NO. Signal MUTE1 Vbr: C.2.3 J801 DC 12V INPUT Pin No. PIN1 PIN2 Comment Low voltage (common) High voltage for lamp Comment Back-light ON/OFF control , high active(3.3V) Audio mute (No use) BRITE Brightness (0-3.4V) control from VL-531 0.7V for min.

  • Page 20: 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 21: 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 22: Rear Panel Connector Input Signals

    B. Rear Panel connector Input Signals Rear Panel Cable and Connector Item Cable / Connector Signal Connector Power Connector Function Connectors the video cable Connectors the adapter cable...

  • Page 23: Troubleshooting

    10. TROUBLESHOOTING A. Main Procedure...
  • Page 24 A-1 Power Circuit Troubleshooting...
  • Page 25 A-2 Backlights Troubleshooting...
  • Page 26 A-3 Performance Troubleshooting...
  • Page 27 A-4 Function Troubleshooting...

  • Page 28: Appendix A: Parats Lists

    APPENDIX A: PARTS LISTS...
  • Page 29 A. FRU BOM A-1 453A5730021 --PCBA Inverter board A-2 454A6930011 --PCBA Key/Board...
  • Page 30 A-3 461A5730052 --Firmware Ctrl board...
  • Page 31 B. BOM LIST Line Level Part 1LVS558HA201 LVS558 2453A5730021 　 2454A6930011 　 2461A5751053 　 2AC600019000 　 2DA3S558V210 　 2DC020147800 　 2DC020148600 　 2DC150009600 　 2NA200150000 　 　 　 　 　 3ECVS5513000 　 3ECVS5532000 　 3ECVS5543000 　 3EEVS5523000 　 3EEVS5542000 　 3FAVS5512100 　...
  • Page 32 3ECVS5513000 　 3ECVS5532000 　 3ECVS5543000 　 3EEVS5523000 　 3EEVS5542000 　 3FAVS5512000 　 3FAVS5517100 　 3FCVS5521000 　 　 　 　 　 2EJ4VS580100 　 2HB2VS580100 　 HDABOVS580 　 2HF6TCO99000 　 2HGTCO990000 　 2HGTCO990100 　 2HK3CM870100 　 1DC190021100 　 1GA060080000 　 1PK100005310 　 　...
  • Page 33 H-CON SET CORE NET WIR SET 　 CHASSIS NECK BRKT HINGE EMI SHIELD VESA MOUNTING LCD COVER LCD BEZEL A'SSY (ACER) VS5517 STAND NECK 　 RATING NP-W/W CARTON USER'S MANUAL TCO99 (NOTICE SHEET) TCO99 LABEL TCO99 LABEL PE BAG CB ASY AC ADAP 　...
  • Page 34 H-CON SET CORE NET WIR SET 　 　 CHASSIS NECK BRKT HINGE EMI SHIELD VESA MOUNTING LCD COVER LCD BEZEL A'SSY (ACER) VS5517 STAND NECK 　 　 RATING NP-W/W CARTON USER'S MANUAL TCO99 (NOTICE SHEET) TCO99 LABEL TCO99 LABEL PE BAG...

  • Page 35: Appendix B: Display Unit Assembly

    VS5543 SK-7 1.6t EMI SHIELD VS5523 TIN 0.3t VESA MOUNTING VS5542 SECC 0.8t LCD COVER VS5512 ABS 94HB WG LCD BEZEL A'SSY VS5517 (ACER) STAND NECK VS5521 ABS 94HB WG 　 　 　 RATING NP-PRC N-VS558-ABO UFGC C CARTON C-VS5558-ABO W/W C...
  • Page 36 　 SA024210300 　 SA090500000 　 SA741250209 　 SB7700200T5 　 SP02E002100 　 BD114P3M010 　 SA002610000 　 Line Level Part Model 1LVS558HA107 AL501 2453A5730021 　 2454A6930011 　 2461A5730052 　 2AC600019000 　 2DA3S558V210 　 2DC020147800 　 2DC020148600 　 2DC150009600 　 2NA200150000 　 　...
  • Page 37 2HF6TCO99000 　 2HGTCO990000 　 2HGTCO990100 　 2HK3CM870100 　 1DC190021100 　 1PK100006810 　 　 　 　 　 2FCVS5522000 　 2FJVS5515000 　 2FJVS5516000 　 Top 20 4SA009600000 　 4SBF45320000 　 4SC4LZ62C0T1 　 4SE013333KT0 　 4SP051005900 　 3DE611000607 　 5PK060000200 　 5SA007810010 　 5SA008100300 　...

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