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Acer P221W Product Service Manual

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Product Service Manual – P221W
Service Manual for acer:
P221W
P/N: 9J.0GT12.xxx
Applicable for All Regions
Version: 001
Date:07/11/12
Notice:
- For RO to input specific "Legal Requirement" in specific NS regarding to responsibility and liability
statements.
First Edition (November, 2007)
© Copyright Acer Corporation 2007. All Right Reserved.
- 1 -

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Summary of Contents for Acer P221W

  • Page 1 Applicable for All Regions Version: 001 Date:07/11/12 Notice: - For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability statements. First Edition (November, 2007) © Copyright Acer Corporation 2007. All Right Reserved. - 1 -...

  • Page 2: Table Of Contents

    Content Index Abbreviations & Acronyms..................3 1. About This Manual .....................3 1.1. Trademark ........................3 2. Introduction........................4 2.1. RoHS (2002/95/EC) Requirements ................4 2.2. Safety Notice ........................4 2.3 .Compliance Statement ....................4 2.4. General Descriptions....................4 3. Product Overview.......................5 Operational Specification........................ 6 Operational & Functional Specification..................10 Environment .............................

  • Page 3: Abbreviations & Acronyms

    Abbreviations & Acronyms 1. About This Manual This manual contains information about maintenance and service of acer products. Use this manual to perform diagnostics tests, troubleshoot problems, and align the acer product. 1.1. Trademark The following terms are trademarks of Acer Inc. :...

  • Page 4: Introduction

    2. Introduction This section contains general service information, please read through carefully. It should be stored for easy access place for quick reference. 2.1. RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS. The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal requirement by EU (European Union) for the global electronics industry which sold in EU and some counties also require this requirement.

  • Page 5: Product Overview

    3. Product Overview Introduction P221W is defined as our new 22’W model in acer P series which will be the first acer project in Qisda. P221W is defined as 22’W LCD Monitor supports WSXGA+ resolution with DPMS (Display Power Management System) and acer eColor function. There are dual input types, D-sub, DVI.

  • Page 6: Operational Specification

    Earphone Jack (input connector) supported Microphone function supported Mechanical Tilt base design From -5 to +23 degree VESA wall mounting design Mechanical Rotate design Mechanical Lift base design Kensington compatible lock design Operational Specification 3.2.1 Power supply Item Condition Spec OK N.A Remark √...
  • Page 7 3.2.2 Signal interface Item Condition Spec OK N.A Remark Color: Black √ 15-pin D-Sub Length: 1800 +/- 30 mm Signal Cable Color: Black √ 24-pin DVI-D Length: 1800 +/- 50 mm See Note-1 √ 15-pin D-sub connector For 15-pin D-sub √...
  • Page 8 Signal Assignment Signal Assignment TMDS RX2- Floating TMDS RX2+ +5V Power TMDS Ground Ground Floating Hot Plug Detect Floating TMDS RX0- DDC Clock TMDS RX0+ DDC Data TMDS Ground Floating Floating TMDS RX1- Floating TMDS RX1+ TMDS Ground TMDS Ground TMDS Clock+ Floating TMDS Clock-...
  • Page 9 3.2.6 Support Timings Horizontal Vertical Nominal Resolution Resolution Mode Frequency Frequency Pixel (active dot) (total dot) (KHz) (Hz) Clock (MHz) 640x480@60Hz 800 x 525 31.469 25.175 59.941 640x480@72Hz 832 x 520 37.861 31.500 72.809 640x480@75Hz 840 x 500 37.500 31.500 75.000 640x480@66.66Hz 864x525 30.24...

  • Page 10: Operational & Functional Specification

    Operational & Functional Specification 3.3.1 Video performance *All spec. of monitor need to warm up at least 1hr. Item Condition Spec OK N. Remark Any input resolution modes √ Resolution which are under 1680x1050 1680x1050 Test Condition: Set Contrast at 50, Contrast ratio √...

  • Page 11: Transportation

    Transportation Item Condition Spec N.A Remark Test Specification: 1. Frequency Hertz 5 ~ 250 HZ , PSD Level 0.0054 (G2/Hz) √ (1) Vibration Package, Non-Operating 2. Grms = 1.146 3. Sweep Time : 30 minutes per Axis 4. Axes : X,Y,Z Test Spectrum: 20 Hz 0.0185(g2/Hz) Unpackaged, Non-...

  • Page 12: Lcd Characteristics

    Speaker Driver √ (1)Nominal impedance 4 ohm √ (2)Rated input power 1 W/CH √ (3)Frequency response 180~20KHz SPL-10dB √ (4)Output sound pressure level 84 ± 3 dB (1W 0.5M) √ (5)Dimension of box 284x60x27mm Audio Control √ (1)Volume range 0 ~100 levels √...

  • Page 13: User Controls

    From 5 sec to 120 sec √ OSD Lock EMEA/Non-EMEA languages √ Language for Asia/Europe Version √ Recall Recall All √ Mode Acer Empower Mode D-sub √ Input Select √ Sharpness √ Display Information For input timing √ Volume √...

  • Page 14: Mechanical Characteristics

    3.11 Mechanical Characteristics 3.11.1 Dimension Item Condition Spec OK N.A Remark √ Bezel opening 475.76*298.1 mm √ Monitor without Stand W x H x D mm 517.69*399.73*73.68mm 517.69*399.73*170.4 mm √ Monitor with Stand W x H x D mm √ Carton Box (outside) L x W x H mm 570*119*468mm...

  • Page 15: Pallet & Shipment

    3.12 Pallet & Shipment 3.12.1 Container Specification Quantity of products Quantity of Products Quantity of pallet Stowing Type (sets) (sets) (sets) (Every container) (Every Pallet) (Every Container) ontainer Pallet A: 80 Pallet A: 10 Pallet B: Pallet B: With pallet 1760 Pallet A: 80 Pallet A: 22...

  • Page 16: Certification

    3.13 Certification Item Condition Spec OK N.A Remark ISO14000 √ API Doc. 715-C49 Green design Requirement √ Blue Angel German Standard √ E-2000 Switzerland Environment √ USA Standard √ TCO’99 √ TCO’03 √ MPR2 √ Green Mark √ Microsoft Windows PC98/99 √...

  • Page 17: Disassembly /Assembly

    4. Disassembly /Assembly 4.1. Exploded View - 17 -...

  • Page 18: Disassembly /Assembly

    4.2. Disassembly /Assembly Acer P221W DISASSEMBLY FLOW Preparation before disassembly: 1.Clean the room for disassembly; 2.Checking the position that the monitors be placed; 3.Prepare the implement, equipments as bellow: ①forklift ②working table ③electronic screwdriver ④screwdriver ⑤static-free pad ⑥glove ⑦pinafore Picture...
  • Page 19 Unscrew the screws of the ASSY electronic screwdriver Torque:7.5±0.5kg.cm CLMN ("+") electronic screwdriver Unscrew the screw of the Rear Cover Torque:5±1.0kg.cm ("+") Disassembling the rear cover from BZL. Take off TAPE MYLAR AL Pull out the lighting wire from Power BD Disassembling the control-board from BZL.
  • Page 20 Take off three AL tapes Disassembling the SHD 1) Pull out the FFC from Panel 2) Disassembling the SHD electronic screwdriver Unscrew the 6 pieces screws Torque:7±1kg.cm ("+") electronic screwdriver Unscrew the screws Torque:5+0.6kg .cm ("+") - 20 -...

  • Page 21: Level 1 Cosmetic / Appearance / Alignment Service

    5. Level 1 Cosmetic / Appearance / Alignment Service 5.1 Software / Firmware Upgrade Process 5.1.1 Hardware prepared: Hardware Requirement: 1. ISP board x 1 VGA signal input from 15pin D-sub cable of PC or NB. Connect to target monitor Check the Jumpers on the ISP Circuit Board (make sure J5, J6, J7, J8 are set at ping...
  • Page 22 2. DSUB VGA cables x 2 3. Printer cable (with one male connector and another female connector) x 1. 4. PC or Notebook with parallel (printer) port x1. - 22 -...

  • Page 23: Firmware Upgrade Procedure

    5.1.2 Firmware Upgrade Procedure Step 1: Un-zip Port95nt and install into your computer. Step 2: Un-zip ISP application tool (RTDTool) Step 3: Press “RTD 2120 ISP” button to execute firmware program application. Step 4: Press “64K” button to load *series*.hex file and press “64~96” button to load *extend*.hex file from your computer.
  • Page 24 Step 5: Select “Erase” option and execute lightning button first, and then select “Auto” option and execute lightning button to start upgrade firmware to the monitor. Note: you can change program speed bar to meet your equipment speed if program firmware fail.
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  • Page 26: Turn Off Burn In

    5.1.3 Turn Off Burn In IF the monitor without signal input has Burn In pattern. As the following figure ENTER and RIGHT to Burn In Off Press “MENU” and “>” key at the same time to exit Burn in mode(factory mode),and soft power key off/on restart the monitor.
  • Page 27 5.1.4 Update EDID Update VGA EDID Step 1: Remove D-sub pin 5 Step 2: Connect monitor power cord and D-sub cable - 27 -...
  • Page 28 Step3: Open EDID Tool and Select EDID file Step4: Write EDID - 28 -...
  • Page 29 Update VGA EDID Step 1: Use D-sub to DVI adapter - 29 -...
  • Page 30 Or use D-sub to DVI patch cable Step 2: Connect monitor power cord and D-sub to DVI patch cabl Step3: The same as the step before Step4: The same as the step before - 30 -...

  • Page 31: Level 2 Circuit Board And Standard Parts Replacement

    6. Level 2 Circuit Board and Standard Parts Replacement 6.1 Block diagram P221W consists of a main body and a stand (base). The main body contains a AUO TFT LCD module with 4 CCFL lamps, a power board (includes AC/DC 、 DC/DC 、...

  • Page 32: Trouble Shooting Guide

    6.2. Trouble Shooting Guide 6.2.1 No Display or display is unstable 1. Interface Board Screen is Blank and blue. Power LED is Follow instructions from OSD dialog OSD shown when key pressed? Proceed to “Check Control Board”. Keypad OK? Proceed to “Check Power Board”.
  • Page 33 2. Control Board Checking Contorl Board Working ? Replug the control wire, then retry Button switch and traces Replace the OK ? Control Board, then retry Transistors and Bead to Replace the components, then Control board OK ? retry Replace a new interface board - 33 -...
  • Page 34 3. Scalar Scalar failed to output data Are all the power and Power or the ground pins ground pins at the correct has bad contacts voltage level? DSUB Connector Are the correct RGB and Are the signals presented Hsync signal fed to or PC failure on DSub connector? Scalar ?
  • Page 35 4. Check LCD Module LCD module fail LCD module fail To display To display image image No Picture No Picture White Screen White Screen Bad Connection Bad Connection Connection between LVDS cable and or connector, or connector, LCM connector LVDS cable LVDS cable OK ? Lamp connector OK ?
  • Page 36 5. Power Board Functions: Backlight did not shine Replace PF801 Check PF801 +19V OK ? OK ? 3.3V, +5.0V Replace Check Q851 Q851 Q852 Q852 OK? Replace Check CN701 Check F601, Q601 PIN2 R612, R615, Check I/F BD F601, Q601, (BL-ON) is HI ? R623 R612...

  • Page 37: Circuit Operation Theory

    II. Block diagram P221W consists of a main body and a stand (base). The main body contains a AUO TFT LCD module with 4 CCFL lamps, a power board (includes AC/DC 、 DC/DC 、 inverter and panel power source), a control board and an interface board. The block diagram is shown as below.
  • Page 38 III. Circuit Implementations: THE MAIN BODY: A-1.) Interface board block diagram: (a) Circuit operations: The scaling IC has OSD and auto detecting input timing functions. OSD offers adjustable functions to the end-users. Auto detecting timing function can detect change modes. It outputs the digital R-G-B data, pixel clock and control signal to TCON of the LCD module.
  • Page 39 EEPROM: We use 24C16 EEPROM to store monitor user data and user preset timings. There are 16 user timing modes are automatically saved in it. Each timing mode is allocated with 22 bytes of memory space for information such as Sync frequencies, polarities… etc. PC can access the EEPROM data indirectly through the SDA and SCL channels of DVI and D-sub (IIC communication).
  • Page 40 #1 EMI Filter This circuit (fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC, VDE, VCCI standard requirements. Fig. 2 #2 Rectifier and filter AC Voltage (90-264V) is rectified and filtered by BD601, C605 (See Fig 3) and the DC Output voltage is 1.4*(AC input).
  • Page 41 #3 Switching element and Isolation power transformer When the Q601 turns on, energy is stored in the transformer. During Q601 turn-off period, the stored energy is delivered to the secondary of transformer. R607, C607 and D601 is a snubber circuit. R625/R626/R627/R628 is current sense resistors to control output power.
  • Page 42 #4 Rectifier and filter D701/D702 and C701/C702/C703 are used to produce DC output. R701/R702/C704/C705 are used to suppress high Frequency switching spikes. (See Fig.5) D701 Y G862C15RSC D702 V-INVERTER Y G862C15RSC T601 R701 C704 C705 C701 C702 C703 470U 35V 470U 35V 470U 35V RC1820...
  • Page 43 #5 PWM Controller The PWM controller NCP1203 implements a standard current mode architecture. With an internal structure operating at a fixed 60KHz where the switch time is detected by the peak current set-point. When the current set-point falls below a given value, the output power demand diminished, the IC automatically enters the so-called skip cycle mode and provides excellent efficiency.
  • Page 44 #6 Feedback circuit PC123 is a photo-coupler and TL431 is a shunt regulation. They are used to detect the output voltage change and be the primary and secondary isolation. When output voltage changes, the feedback voltage will be compared and duty cycle will be decided to control the correct output voltage.
  • Page 45 A-4.) Inverter Circuit Operation Theory An Intelligent CCFL Inverter Controller --- TL1451 The TL1451 is a high-performance, cost-effective CCFL (Cold Cathode Fluorescent Lamp) controller designed for driving large-size Liquid Crystal Display (LCD) applications requiring 2 to 6 CCFLs. The TL1451 provides two drive signals for most power conversion topologies while maintaining high-efficiency operation.
  • Page 46 Push-Pull Configuration C827 R814 R815 1U Z C806 C810 C816 680P J 680P J 27P J T801 DRVA C817 27P J Q808 IRLR3410PBF DRVB 1J.26049.031 Q809 IRLR3410PBF Fig. 8 Fig. 1 the Q808, Q809 and T801 form a full-bridge configuration. When Q808 turn on, then Q809 turn off Q808 turn off, then Q809 turn on.
  • Page 47 Feed-back Circuit TP801 CN801 TP802 C814 C816 5P D 2062204102 27P J C846 T801 0.01U K D805 BAV99 C817 27P J D809 BAV99 C815 C838 3.3N J 4700P J R819 1J.26049.031 D806 BAV99 R820 3.3K F C837 R827 R825 0.033U K 422 F 422 F C819...

  • Page 48: Spare Parts List

    CSN FRONT EPS P22XW Dummy Packing 4G.0GT02.001 CSN BACK EPS P22XW Dummy Packing 4G.0GT01.001 QSG ACER P221W P22XW Dummy Packing 5B.0GT01.001 CD MANUAL ACER P221W P22XW Dummy Packing 5K.05406.501 CABLE DVI-D/DVI-D 1.8M Dummy Packing 5K.L2H06.511 CABLE SIGNAL/C H+V OD_5.5 1.8M - 48 -...

  • Page 49: Appendix 1 - Screw List / Torque

    Appendix 1 – Screw List / Torque STANDARD SCREW TORQUE SPEC. MOUNTING TORQUE HOLE SIZE Screw ITEM DESCRIPTION MATERIAL (KG-CM) (MM) Head ∅2.68±0.03 8F.00273.6R0 SCRW TAP PH F/10WSH M3*6L METAL None tread ： 8 C-ZN ～ 10 Have tread:6 ～ 8 Aluminum:4~5 ∅2.68±0.03 8F.VZ524.6R0 SCRW TAP FLAT+EXT M3*6L C-...

  • Page 50: Appendix 2 - Physical Dimension Front View And Side View

    Appendix 2 – Physical Dimension Front View and Side view Fig. 1 Physical Dimension Front View and Side view - 50 -...

  • Page 51: Appendix 3 - Control Board

    Appendix 3 – Control Board - 51 -...

  • Page 52: Appendix 4 - Interface Board

    Appendix 4 – Interface Board - 52 -...
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  • Page 58: Appendix 5 - Power Board

    Appendix 5 – Power Board - 58 -...
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