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Acer AL1511 Service Manual

Tft color lcd monitor
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Acer AL1511
Service Guide
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  • Page 1 Acer AL1511 Service Guide...
  • Page 2 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 3 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.
  • Page 4 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 5: Revision List

    Revision List Revision Release Date Modify Instruction TPV Model T560KVNHKGAGA Nov.-11-2005 Initial Release T560KVNHKGADAP...
  • Page 6: Table Of Contents

    Table of Contents Revision List ……………………………………………………………………………………………………….4 Table of Contents……………………………………………………………………………………………………5 Chapter 1 Monitor Features……..………………………………………………………………………………………………6 Monitor Features……………………………………………………………………………………………………6 Factory Preset Timing Table………………………………………………………………………………………7 Monitor Block Diagram……………………………………………………………………………………………..8 Main board Block Diagram………………………………………………………………………………………..9 Software Flowchart………………………………………………………………………………………………..10 Main board Layout…………………………………………………………………………………………………12 Front panel………………………………………………………………………………………………………….14 Rear cover…………………………………………………………………………………………………………..15 Chapter 2 Operating Instructions……………………………………………………………………………………………16 External Controls…………………………………………………………………………………………………..16 Front Panel Controls……………………………………………………………………………………………….17 OSD Menu …………………………………………………………………………………………………………18 Hot-Key Menu……………………………………………………………………………………………………..
  • Page 7: Chapter 1 Monitor Features

    Chapter 1 Monitor Features Driving system TFT Color LCD Size 38.1 cm (15.0") Panel Type SVA150XG04TB Display Area 304.128mm(W) X: 228.096mm(H) Pixel pitch 0.297mm(H) x 0.297mm(V) 250cd/m (type) Brightness Contrast Ratio 450:1 (type) LCD Panel Viewable angle 120° (H) /100° (V) (type) Response time 16ms (Tr + Tf) (type) Display Color...
  • Page 8: Factory Preset Timing Table

    Factory Preset Timing Table Horizontal Vertical Video Mode Resolution Frequency (KHz) Frequency (Hz) 640 x 480 31.469 59.940 640 x 480 37.500 75.000 640 x 480 37.861 72.809 800 x 600 35.156 56.250 VESA SVGA 800 x 600 37.879 60.317 800 x 600 46.875 75.000...
  • Page 9: Monitor Block Diagram

    Monitor Block Diagram The LCD Monitor will contain a main board, an inverter/an internal adapter board, a keypad board and an audio board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel and the DC-DC conversion. The Adapter will provide the 12V DC-power to inverter/power board.
  • Page 10: Main Board Block Diagram

    Main Board Block Diagram For T560KVNHKGADAP model MCU (U101) LCD Interface Scalar NT68521A-XFG (U102) (LVDS) NT68F63L (Include MCU, ADC, OSD) (CN104) RGB H-SYNC V-SYNC D-Sub Connector OSD Control X101 EEPROM (CN107) (CRYSTAL 2MHz) Interface AT24C16 (Keypad) (U103) DB15_SDA DB15_SCL EDID-EEPROM M24C02 For T560KVNHKGAGA model MCU (U402)
  • Page 11: Software Flowchart

    Software Flow Chart...
  • Page 12 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 13: Main Board Layout

    Main board Layout For T560KVNHKGADAP model Item Description U102 NT68521A-XFG (Scaler) U101 NT68F63L/G44L-PLU (MCU) X101 CRYSTAL 12MHz HC-49US A (For MCU) CN102 WIRE HARNESS CN107 D-SUB 15P CN105 WAFER 2*6P 2.0MM R/A CN106 PIN HEADER 2*7 R/A U103 AT24C16AN-10SU-2.7 U501 A1C1084-33PE U502 AI1117D-1.8-EI...
  • Page 14 For T560KVNHKGAGA model Item Description U401 NT68523EFG (Scaler) U402 NT68F633 (MCU) X401 CRYSTAL 12MHz HC-49US A CN404 D-SUB 15PIN CONNECTOR U403 M24C16-WMN6TP U405 M24C02-WMN6TP CN101 WAFER 14P 2.0MM DIP CN403 WAFER 16PIN 2.0mm DIP CN701 WAFER 2*6P 2.0MM R/A CN702 PIN HEADER 2*7 R/A...
  • Page 15: Front Panel

    Front Panel Auto Adjust Key/Exit MENU/ENTER < /Volume > /Volume Power Key...
  • Page 16: Rear Cover

    Rear cover Item Description Power cord Signal Cable Audio Cable...
  • Page 17: 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 18: Front Panel Controls

    Front Panel Controls • 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. NOTES • 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 19: Osd Menu

    OSD Menu 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. Press < or >to change the settings of the current function. 5.
  • Page 20 Warm Recall Warm Color Temperature from EEPROM. Cool Recall Cool Color Temperature from EEPROM. User / Red User/Green Adjusts Red/Green/Blue intensity. User / Blue English 繁體中文 Deutsch Français Multi-language Selection Español Italiano 简体中文 日本語 H. Position Adjust the horizontal position of the OSD. V.
  • Page 21: Hot-Key Menu

    Hot-Key Menu (option): a. Outline: b. The description for Hot-Key function: Item Operation Icon Description Adjustment Reset Range Value Volume When the OSD is closed, press Left or Volume of Audio adjustment. The Audio 0-100 Right button will be Volume Hot-Key will be Mute when volume=0.
  • Page 22: 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 DDC1/2B Feature This monitor is equipped with VESA DDC1/2B 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 23: Chapter 3 Machine Disassembly

    Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and troubleshooting. 1. The screws for the different components vary in size. During the disassembly process, group the screws NOTE: with the corresponding components to avoid mismatch when putting back the components. 2.
  • Page 24 front panel 1. Remove 4 screws in the rear cover. Tool: For remove the cover Stand up the monitor, make the front up, then find out the hooks’ position, use the tool (like the picture or other card) to insert it to disassemble the monitor, then the front panel can be removed.
  • Page 25 1. Remove the screw on the shield. Remove the shield 2. Remove the 2 screws for VGA connector. Push the shield parallel along the arrowhead direction.
  • Page 26 1. Remove the 4 screws Remove the main board 2. Disconnect the connectors. Remove the Remove the 2 screws audio board...
  • Page 27 Remove the Remove the 5 screws power board Disconnect the 2-wire harness connector for power and lamps. Disconnect the wire harness 1. Lay the panel left side up. Remove the 2. Remove the four screws (left main frame and right, total 4).
  • Page 28 The end...
  • Page 29: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting This chapter provides troubleshooting information for the AL1511: Main Board Defect Mode Failure Analysis Repair Testing Missing Line Abnormal Display Bright Dot Dark Dot Light Leakage Mura Check Panel Change Panel Image Sticking Dot Defect Brightness Spot...
  • Page 30 Defect Mode Failure Analysis Repair Testing Noise Check Single Change Single Flicker Check Main board Change Main board Change Panel Check Panel Abnormal Check Main board Change Main board Gray Check Panel Change Panel Check LVD Cable Change LVD Cable R\G\B Check Single Change Single...
  • Page 31 Defect Mode Failure Analysis Repair Testing Change Keyboard or LED Off Display Main board or wire Abnormal Change Keyboard or LED Dark Main board Change Keyboard or LED Abnormal Main board or wire Change Keyboard or LED Flicker Main board or wire Abnormal Check Wires Change Wires...
  • Page 32 Power Board 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 1) Check IC902, IC903 2) 2) Check Q901, Q902, ZD901 circuit Check D910, D912...
  • Page 33 No Backlight Check C201 (+) =12V Check 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 (-) have the output of square wave at short time. Check Q203/Q205/Q207/D201 Check the resonant wave of pin2 &...
  • Page 34 Key Board OSD is unstable or not working Is Keypad board connecting normally? Connect Keypad Board Is Button Switch normally? Replace Button Switch Is Keypad board normally? Replace Keypad Board Check main board...
  • Page 35: Chapter 5 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) Pin No. Description Pi N No. Description + 5V Green Logic Ground Blue Monitor Ground Monitor Ground DDC-Serial Data DDC-Return H-Sync...
  • Page 36: Chapter 6 Fru (Field Replacement Unit) List

    ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines.
  • Page 37: Exploded Diagram

    Exploded Diagram...
  • Page 38 Note: above picture show the description of the following component Picture Description Front panel Shield Main Frame Panel Rear cover...
  • Page 39 Hinge Stand base Main board PWPC board Audio board Key board...
  • Page 40 Mylar Speakers Signal cable Audio cable (option) Power code Inverter board cable LVDS cable...
  • Page 41 Main frame screws Rear cover screws Ground rush screw Hinge cover screws D-sub screws Main/Power/Audio Board screws...
  • Page 42: Chapter 7 Schematic Diagram

    Chapter 7 Schematic Diagram Main Board For T560KVNHKGADAP model R103 R101 4.7k MCU_VDD BL_EN D101 BL_BRIGHT BAT54C R104 DDC_VDD C101 DGND U101 R107 PC2/SOGI VSYNC1 MCU_VS C102 4.7k MCU_HS PC1*/DP HSYNC1 DGND 47u/16V MUTE PC0*/DM PC3/PWM0 RSTB PC4/PWM1 RSTN C103 PC5/PWM2/PATTO AMP_STBY 0.1u...
  • Page 43 CN109 DGND T0M/ARSBP3 CN110 CN108 T0M/ARSBP3 T0P/ARSBN3 DGND T0P/ARSBN3 30PIN/1.0mm BRSRN3 T1M/ARSGP0 T1M/ARSGP0 ARSBP1 BRSRP3 T1P/ARSGN0 T1P/ARSGN0 ARSBN1 T2M/ARSGP1 T2M/ARSGP1 BRSRN2 T2P/ARSGN1 T2P/ARSGN1 ARSBP2 BRSRP2 ARSBN2 TCLK1M/ARSGP2 TCLK1M/ARSGP2 BRSRN1 TCLK1P/ARSGN2 TCLK1P/ARSGN2 T0M/ARSBP3 BRSRP1 T3M/ARSGP3 T3M/ARSGP3 T0P/ARSBN3 T3P/ARSGN3 T3P/ARSGN3 BRSGN3 T4M/ARSRP0 T4M/ARSRP0 T2M/ARSGP1 BRSGP3...
  • Page 44 CONNECTOR FOR POWER/INVERTER BOARD 2.0 mm U501 3.3V AIC1084-33 CASE CN105 VOUT BL_EN BL_BRIGHT C154 C157 C158 0.1u C155 C156 6*2PIN/2.0mm 220p 220p 100u/16V 0.1u C159 C161 C160 C162 100u/16V 0.1u 100u/16V 0.1u DGND DGND DGND DGND DGND DGND DGND DGND U502 2.5V...
  • Page 45 L101 ADC_VAA 3.3V 3.3V B0805/600 3.3V L102 PLL_VAA 2.5V B0805/600 C129 C130 C131 C132 C133 C149 C151 C120 C121 C122 C123 C124 C125 C126 C134 C135 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 47u/16V 0.1u 0.1u 0.1u 0.1u 47u/16V 0.1u 0.1u 0.1u DGND...
  • Page 46 ADC_VAA D105 ADC_GND BAV99 DDC_SCL R166 B_IN+ L108 DDC_SDA B0805/0 R167 C182 D108 D109 100p 5.6V 5.6V R168 B_IN- DGND R199 ADC_GND ADC_VAA VGA_DET DDC_VDD CN100 ADC_GND VGA_VS VGA_HS CN107 DB15 D106 DB_R+ VGA_CONN D114 BAV99 DB_G+ 5.6V DB_B+ SOGI M_RXD DDC_VDD DGND...
  • Page 47: For T560Kvnhkgaga Model

    For T560KVNHKGAGA model D420 D419 BAV99 BAT54C MCU_VDD MCU_VDD C401 DGND 0.1UF U403 C403 AT24C16 0.1u C402 47u/16V SCLK LEDB DGND DGND LEDG R401 R402 R403 R404 R405 R471 LEDA 4.7k 4.7k 4.7k 4.7k 4.7k DGND 24C02_WP MUTE CN401 STANDBY PANEL_EN BL_EN R406...
  • Page 48 C419 100u/16V FB401 ADC_VAA 1.8V 3.3V B0805/600 1.8V 3.3V FB402 3.3V B0805/1k DVI_AVCC C420 10u/10V DGND C421 C422 C423 C424 C425 C426 C427 C428 C429 C430 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u DVI_AVCC 3.3V DGND DGND ADC_VAA ADC_GND DGND...
  • Page 49 CN101 TCLK1M TCLK1P TCLK2M TCLK2P PANEL_VDD 12*2PIN/2.0mm DGND DGND Title 715L1699-B Size Document Number PANEL CONNECTER Date: Wednesday, August 03, 2005 Sheet...
  • Page 50 D701 U701 3.3V SS14 AIC1084-33 CONNECTOR FOR CASE POWER/INVERTER VOUT BOARD 2.0mm C702 C701 C703 0.1u 100u/16V 0.1u D702 CN701 GS1D BL_EN BL_BRIGHT DGND U702 R706 AIC1117-18 1.8V CASE 6x2PIN/2.0mm VOUT C704 C706 C705 C707 100u/16V 0.1u 100u/16V 0.1u DGND DGND DGND DGND...
  • Page 51 Include DVI (optional, only for Dual-input model) DDC_SCL DDC_SCL D418 3.3V DDC_SDA BAV70 DDC_VDD DDC_SDA DGND C452 D404 DGND 0.1UF ZD401 ZD402 BAV99 FB404 5.6V 5.6V DDC_VDD B0805/30 R475 R478 R445 B_IN0+ U405 4.7k 4.7k DGND AT24C02 R447 24C02_WP R449 24C02_WP DDC_SCL SCLK...
  • Page 52: Power Board

    Power Board...