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Acer AL1516 Service Manual

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Acer AL1516
Service Guide

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Table of Contents
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  • Page 1 Acer AL1516 Service Guide...
  • Page 2 Service Guide Version and Revision Version Release Date Revision TPV Model Name April -17-2006 Initial release T566KV5HKGAENP...
  • Page 3 Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software.
  • Page 4 DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines. Warning: (For FCC Certified Models) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
  • Page 5 Precautions Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.
  • Page 6: Table Of Contents

    Table Of Contents ……………………………………… Chapter 1 Monitor Features Induction ……………………………………… Electrical Requirements ……………………………………… LCD Monitor General Specification ……………………………………… LCD Panel Specification ……………………………………… Support Timing ……………………………………… Block Diagram ……………………………………… Main Board Diagram ……………………………………… Software Flow chart ……………………………………… Main Board Layout ……………………………………… Front Bezel ………………………………………...
  • Page 7: Chapter 1 Monitor Features

    This will alleviate the growing health concerns. It is also a space saving design, allowing more desktop space, and comparing to the traditional CRT monitor, it consumes less power and gets less weight in addition MTBF target is 50k hours or more. Chart of AL1516 Panel SVA150XG04TB...
  • Page 8: Electrical Requirements

    Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light 225 lux 40 cm in front of LCD panel Viewing distance Warm up time All specifications 30 minutes Fully functional 5 seconds Measuring equipment Chroma 7120 signal generator or equivalent, directly Connected to the monitor under test.
  • Page 9: Lcd Monitor General Specification

    LCD Monitor General Specification 15 “ active matrix color TFT LCD Panel type SVA150XG04TB 304.128mm (W) × 228.96mm(H) Display size 0.297mm(H) × 0.297mm(V) Pixel pitch 1024(H) × 768(V) Pixel Pixel Contrast ratio 450:1(typ.) Brightness 250 cd/m (typ.) Response time (Tr+Tf) 16ms Display color 16.7M...
  • Page 10: Lcd Panel Specification

    LCD Panel Specification LCD Panel Model ( SVA150XG04TB Display Type active matrix color TFT LCD Pixel 1024(H)×768(V) Pixel 304.128mm (W) × 228.96mm(H) Display Area 0.297mm(H) × 0.297mm(V) Pixel Pitch Display Color 16.7M Colors Lamp Frequency 55KHz(max.) Lamp Current 7.5mArms (typ.) Weight 1000g (typ.) Optical Specifications...
  • Page 11: Support Timing

    Supported Timing...
  • Page 12: Block Diagram

    Monitor Block Diagram The LCD MONITOR will contain a main board; a power board, keypad board and which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel. Flat Panel and CCFL Drive CCFL backlight Power Board...
  • Page 13: Main Board Diagram

    Main Board Diagram LCD Interface SST25VF010A-33-4C-SAE Scaler TSUM16AK Crystal (U402) 14.318MHZ (Include: MCU, ADC, OSD etc) (X401) (U401) EEPROM M24C16 D-SUB Connector OSD Control (U403) (CN405) Interface (Keypad) (CN403) EEPROM M24C02 (U404)
  • Page 14: Software Flow Chart

    Software Flow Chart...
  • Page 15 Remark: 1) MCU initializes. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode.
  • Page 16: Main Board Layout

    Main Board Layout Label Part NO Description CN405 088G 35315F H D-SUB 15PIN CN101 033G8027 14 H WAFER U401 056G 562100 TSUM16AK X401 093G 22 53 CRYSTAL 14.318MHzHC-49US U402 056G1133 74 SST25VF010A-33-4C-SAE U403 056G113356A 24LC16B/SNG SOIC-8PIN U404 056G113334A 24LC02B/SNG SOIC-8PIN U702 056G 563 21 AP1084K33LA...
  • Page 17: Front Bezel

    Front Bezel External Controls Front Panel Control Item Description Item Description Auto Adjust / Exit MENU/ENTER < Power Indicator > Power Button...
  • Page 18: Rear Bezel

    Rear Bezel Turn off your computer before performing the procedure below. 1. Plug the power cable of your monitor into a nearby outlet. Plug the other end of the power cord into the PC port. 2. Connect one end of the 15-pin VGA cable to the back of the monitor and connect the other end to the computer’s D-Sub port.
  • Page 19: Chapter 2 Operating Instructions

    Chapter 2 Operating Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. •...
  • Page 20: Front Panel Controls

    Front Panel Control • /Power Button: Press this button to turn the monitor ON or OFF. And display the monitor’s state. • Power Indicator: Green – Power on mode. Orange – Off mode. • Menu / Enter: Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD menu when in Volume Adjust OSD status.
  • Page 21: Adjusting The Picture

    Adjusting the Picture a. How to Adjust a Setting 1. Press the MENU-button to activate the OSD window. 2. Press < or > to select the desired function. 3. Press the MENU-button to select the function that you want to adjust. 4.
  • Page 22 b. The Description For Control Function...
  • Page 24: Osd Message

    OSD Message a. Outline b. The Description For OSD Message Item Description Auto Config When Analog signal input, if User Press Hot-Key “Auto”, will show Please Wait This message, and the monitor do the auto config function. When the Hsync Frequency, Vsync Frequency or Resolution is out of Input Not The monitor support range will show this message.
  • Page 25: Logo

    Logo When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.
  • Page 26: Chapter 3 Machine Disassembly

    Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance. Disassembly Procedure Disassemble the base 1. Remove hinge cover. (Fig 1) 2. Remove four screws to release stand base. (Fig 2) Fig 1 Fig 2...
  • Page 27 Disassemble the front cover and rear bezel Remove five screws to release back cover and front bezel. (Fig 3) Remove connector wire with keyboard and main board. (Fig 4) Fig 3 Fig 4...
  • Page 28 Disassemble the shield Remove two screws to release the shield. (Fig 5) (Remove the shield as arrow direction). Fig 5...
  • Page 29 Disassemble the main board 1. Remove three screws to release main board. (Fig 6) 2. Remove connector wire with main board and panel. (Fig 7) Fig 6 Fig 7...
  • Page 30 Remove connector wire with main board and power board. (Fig 8) 4. Remove connector wire with main board and KEPC board. (Fig 9) Fig 8 Fig 9...
  • Page 31 Disassemble the power board 1. Remove four screws to release power board. (Fig 10) 2. Remove connector wire with power board and panel. (Fig 11) Fig 10 Fig 11...
  • Page 32 Disassemble the panel Remove four screws to release metal frame. (Fig 12) Fig 12...
  • Page 33: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting This chapter provides troubleshooting information for the AL1516: The way of accessing to the factory mode: Firstly, turn off the power and remove the power plug, then press the menu key and plug in at the same time, finally, press the menu again will activate the factory mode, the factory OSD will be at the left top of the screen.
  • Page 34 2. No picture (LED is orange) No picture Measure U701 PIN2=3.3V U702 PIN2=3.3V Replace U701, U702 X401 oscillate waveforms are normal Replace X401 Check if the sync signal from computer is output and video cable is connected normally Input the sync signal of computer, or change the cable Replace U401...
  • Page 35 3. Keypad Board OSD is unstable or not working Connect Keypad Board Is Keypad board connecting normally? Is Button Switch normally? Replace Button Switch Is Keypad board normally? Replace Keypad Board Check main board...
  • Page 36 Power Board 4. No Power No power Check AC line Volt 110V or 220V Check AC line Check the voltage of C905(+) Check F901, bridge rectified circuit Check start voltage for the pin3 of IC901 Check R906, R907,IC901 Check the auxiliary voltage is between 10V-16V Check IC902,IC903 Check Q901, Q902, ZD901 circuit Check D910, D912...
  • Page 37 5. No Backlight Check C201 (+) =12V Change F902 Check ON/OFF signal Check Interface board Check U201 pin9=12V ? Change Q201 or Q202 Check the pin1 of U201 have saw tooth wave Change U201 Check D201 (-) has the output of square wave at short time. Check Q203/Q205/Q207/D201 Check the resonant wave of pin2 &...
  • Page 38: Connector Information

    Chapter 5 Connector Information The following figure shows the connector locations on the monitor board: 15 – Pin Color Display Signal Cable (D-sub)
  • Page 39: Chapter 6 Fru (Field Replacement Unit) List

    FRU parts for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.
  • Page 40: Exploded Diagram

    Exploded Diagram (Model: AL1516)
  • Page 41 Part List Above picture show the description of the following component. Item Picture Description Part No. BACK COVER Q34G0007 RX B STAND 034G1576 RX B BEZEL Q34G0006AQW B BASE T34G1579 RX B SHIELD Q85G0006 1 S PANEL 750GLD504TB...
  • Page 42: Schematic Diagram

    Chapter 7 Schematic Diagram TSUM16AK SCHEMATIC XGA/SXGA LVDS OUTPUT GNDR GNDR GNDG GNDG GNDB GNDB HSYNC HSYNC VCC1.8 VCC3.3 +12V VSYNC VSYNC DDCA_SDA DDCA_SDA DDCA_SCL DDCA_SCL DET_VGA DET_VGA DDC_WP DDC_WP VCC1.8 Vcc3.3 +12V CLK+ CLK+ CLK- CLK- DDCD_SDA DDCD_SDA DDCD_SCL DDCD_SCL DET_DVI DET_DVI...
  • Page 43 SOT-223 U701 VCTRL +3V3 NC/LT1117-18 R702 +3V3   1/16W C701 C703 C704 VCC1.8 100uF/25V C702 VCC1.8 4.7uF/16V D701 BL_ADJ(DC) 0V ~ 3.3V 4.7K 1N4148 0V ~ 5V 4.7K 4.7K MMBT3904 R703 Q702 BL_ADJ   1/16W P W M D702 CHT2907 1N4148 C705 1uF/16V...
  • Page 44 CN405   FB410 1/16W DB15 RED+   R434 1/16W C432 0.047uF RED- GREEN+ FB411   1/16W R435   1/16W C433 0.047uF GREEN- BLUE+     FB412 1/16W R436 1/16W C434 0.047uF BLUE-   PC5V R437 1/16W C435 0.047uF PC5V R438 VGA_CON  ...
  • Page 45 VDVI VMPLL VPLL AVDD VDDP VDDC VCC1.8 FB401 VDDC VCC3.3 FB402 AVDD VCC1.8 600 OHM VCC3.3 600 OHM C403 C407 U401 VCC3.3 4.7uF/16V 0.1uF VCTRL VCTRL C404 C405 C406 0.1uF 0.1uF 0.1uF NC/LVACKP/NC RIN0P NC/LVACKM/NC GNDR RIN0N RA1P/LVA2P/RA2 R489 R490 GIN0P RA1N/LVA2M/RA3 GNDG...
  • Page 46 PB[0..5] PB[0..5] CN102 CN103 PA[0..7] RB1P PA[0..7] PA[0..7] RB1N PA[0..7] LVACKP FB0N RB2P RA3N RB3N LVACKM FB0P RA1P RB2N RA3P RB3P LVA2P RA1N RB3P RA2P LVA2M FB1N RB3N RA2N RB2N LVA1P FB1P RA2N RA2P RB2P LVA1M PB[6..11] RA3P PB[6..11] LVA0P RA3N RA1N FB2N...
  • Page 47: Power Board

    Power board (adapter + inverter)

This manual is also suitable for:

Al1517