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Acer TD070VA1 Service Manual

7'' tablet
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TD070VA1
SERVICE GUIDE

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Summary of Contents for Acer TD070VA1

  • Page 1 TD070VA1 SERVICE GUIDE...

  • Page 2: Table Of Contents

    Table of Contents Chapter 1. Hardware Specifications and Configurations Features ............Tablet tour.
  • Page 3 TD070VA1 ........

  • Page 4: Revision History

    Updates Copyright Copyright © 2013 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.
  • Page 5 Conventions The following conventions are used in this manual: WARNING: Indicates a potential for personal injury. CAUTION: Indicates a potential loss of data or damage to equipment. IMPORTANT: Indicates information that is important to know for the proper completion of a procedure, choice of an option, or completing a task.
  • Page 6 For Acer-authorized service providers: Your Acer office may have a different part number code than those given in the FRU list of this printed service guide. The list provided by your regional Acer office must be used to order FRU...
  • Page 7 CHAPTER Hardware Specifications and Configurations Hardware Specifications and Configurations ....1-2 Features ............1 -2 Tablet tour .

  • Page 8: Chapter 1. Hardware Specifications And Configurations

    Hardware Specifications and Configurations Features The following is a summary of the computer’s many features: Form Factor • 7” Tablet Operating System • Android 4.2.1 Platform • Cortex-A9 WM8880 1.5GHZ Dual Core Processor System Memory RAM: DDR3 1GB • eMMC: Nand flash 8GB/16GB •...

  • Page 9: Expansion Slot

    Connectivity Wi-Fi • IEEE 802.11 b/g/n Bluetooth • • Micro USB 2.0 port • Support USB 2.0 Client Expansion Slot MicroSD memory card up to 32G • Special Keys and Controls • Capacitive Multi-Touch Screen • Touch controller - 5 point support/ •...

  • Page 10: Power Adapter And Battery

    Power Adapter and Battery Battery • Li-Polymer battery • Capacity: 3000mAh Power Adapter • Voltage range/frequency: 100~ 240V AC, 50/60Hz • DC output: 5V,1.5A Others • Reset hole Green Requirement • Rohs compliance • WEEE compliance • SMT Green process Hardware Specifications and Configurations...

  • Page 11: Tablet Tour

    Tablet tour Front View Figure 1-1. Front View 2 Front View 1 Touch Screen Table 1-1. Front View Item Description Touch Screen 7-inch, 1024 x 600 capacitive touch screen. A 0.3-megapixel camera for video chatting and self-portrait Front Camera images. Hardware Specifications and Configurations...

  • Page 12: Rear View

    Rear View 2 Rear View 1 Speakers Figure 1-2. Rear View Table 1-2. Rear View Description Item Emits stereo audio. Speakers Rear View 1.9M Pixel Rear camera Hardware Specifications and Configurations...

  • Page 13: Bottom View

    Bottom View Figure 1-4. Bottom View Item Description 3.5mm headphone port General 3.5mm headphone Microphone Receives audio input Micro SD port EXT sd card Even the computers to do data exchange Mini USB port Reset Hole Insert a pointed object, such as a paper clip, into the reset hole to reset the tablet to its factory defaults.

  • Page 14: Right View

    Right View Figure 1-5. Right View Table 1-5. Right View Item Description Increases the tablet volume Up volume decreases the tablet volume. Down Volume • Press and hold to turn the tablet on or off. • Press briefly to turn the screen on/off or enter sleep Power Button mode.

  • Page 15: System Block Diagram

    System Block Diagram Figure 1-6. System Block Diagram Hardware Specifications and Configurations...

  • Page 16: Specifications Table

    Specifications Table Computer specifications Item Metric Imperial Dimensions Length 191 mm 7.52 in Width 112 mm 4.41 in Height (front to rear) 9.9 mm 0.39 in Weight 289 g 0.64 lb Input power Operating voltage AC Input: 100~ 240V AC, 50/60Hz / DC Output: 5 V Operating current AC Input: 0.3A / DC Output: 2.0A Temperature...
  • Page 17 System Board Major Chips Item Specification Cortex-A9 WM8880 1.5GHZ Dual Core Processor Graphics Processor Mali-400 DP LVDS transmitter DDR3L DDR3 1G ULPI Phy for USB Bluetooth WI-FI802.11B/G/N Wireless GPS Low-Noise Amplifier TOUCH controller ZET6221/GSL1680 eMMC 8G / 16G CAMERA 1.9MP rear camera，0.3MP front camera Thermal Sensor Audio codec Embedded in CPU...
  • Page 18 Processor Item Specification Mali-400 DP Cortex-A9 WM8880 1.5GHZ Dual Core Processor+ CPU package N/A. Processor Specifications Bus Speed Cache Core Item Cores Package Speed (FSB/DMI/QBI) Mfg Tech Size Voltage WM8880 Dual 0.9V-1.2V Core No CPU Fan for this product No BIOS Setup Menu for this product No Keyboard for this product System Memory-DDR3L Item...
  • Page 19 LED 7.0” Item Specification Vendor/model name TD070VA1 Screen Diagonal (mm) 177.8mm Active Area (mm) 153.6(W) × 90.0(H) mm Display resolution (pixels) 1024 × 3(RGB) × 600 Pixel Pitch (mm) 0.05(W) × 0.15(H) mm Typical White Luminance (cd/m2) also called Brightness...
  • Page 20 Rear Camera Item Specification OTHER No MIC OTHER ZC-TV07-2035+0329 S4.0 卓呈 Vendor and model Type 1.9M Mini Card Item Specification Number supported Features 3G Card Item Specification Features Hardware Specifications and Configurations 1-14...
  • Page 21 Wireless Module 802.11b/g/n Specification Item AW-NH520 Chipset 802.11b: 1, 2, 5.5, 11Mbps 802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps Data throughput 802.11n: MCS 0~7 HT20 HT40 Protocol CCXv2/CCXv3/CCXv4/CCXv5, WFAEC Interface SDIO/SPI Battery Item Specification 迪比科 Vendor & model name Battery Type Li-polymer Pack capacity...
  • Page 22 Video Interface Item Specification Chipset N/A (Graphic function is embedded in CPU) Package Interface Compatibility Sampling rate VRAM Item Specification Chipset Memory size Interface USB Port Item Specification USB compliance level USB2.0 Modes Device Speed Low, Full and High Number of USB port(s) 1 port for Device Location Output Current...
  • Page 23 AC Adapter Item Specification Input rating 100Vac to 240 Vac Maximum input AC current 0.3A(RMS) Max. @100Vac & maximum load The inrush current will not cause any components damage Inrush current including input fuse and bridge diode. Meet EPS 2.0 Level V The PSU Average efficiency is greater than 73.9%, measurement @ 25%, 50%, 75% and 100% load with input Efficiency...
  • Page 24 CHAPTER Diagnostic Utilities Diagnostic Utilities ........2-2 Introduction .

  • Page 25: Chapter 2. Diagnostic Utilities

    Diagnostic Utilities Introduction The TD070VA1 has a software tool designed to diagnose problems with its hardware components. Diagnostic Tool SOP On the device, go to the applications screen and look for the diagnostic tool named selftest. Figure 2-1. Device Applications Screen Tap the ACTP icon to start the testing process.

  • Page 26: Main Menu

    Main Menu The diagnostic tool tests the functions of TouchSlope, Five Touch, RGB, Front Camera, Rear Camera, Speaker, Top Mic, SD Card and G-sensor. Select the function(s) you want to test, and then tap OK to start. Figure 2-2. Diagnostic Tool Main Menu 1.
  • Page 27 2. Speaker audio channel Test Click speaker audio channel test, Frist test left channel and then test right channel Figure 2-4. Speaker audio channel Test 3. LCD Test Tap each screen to switch to the next colored screen. The screen sequece are as follows: Red-Green-Blue-Black-Gray 8-Color picture-64 Gray Scale Picture-H Picture-White.
  • Page 28 4. Outer Mic Test Press the Outer Mic Test then press the speaker record test Figure 2-6. Hardware Keys Test 5. Front Camera Test Aim the front side of the device at an object. Tap “capture” to test the picture taking functionality and the quality of the picture.
  • Page 29 6. Earphone test Frist you must Insert the headset, and then Music will play for 30 seconds. When the music stops playing, According to the sound of you judge whether to pass Figure 2-8. Earphone Test 7. Earphone Mic Test Frist you must Insert the headset, and then Tap the screen to start the test.
  • Page 30 8. SD Card Insert an SD card into the device. The test starts automatically. If the SD card read-write capability is successful, a message appears on the screen and the test automatically closes. Otherwise, “can’t find SD card, test fail” appears on the screen. Tap “Failure” if the test fails or “Retest” to redo the test.
  • Page 31 CHAPTER Jumper and Connectors Location Jumper and Connector Locations ......3-2 Mainboard Bottom View ..........3 -2 Mainboard Top View .

  • Page 32: Chapter 3. Jumper And Connector Locations

    Jumper and Connector Locations Mainboard Bottom View Figure 3-1. Mainboard Top Table 3-1. Mainboard Top Jumper and Connectors Item Description Item Description Micro SD Port Reset Button Headphone Jack HDMI Micro USB Jumper and Connector Locations...

  • Page 33: Mainboard Top View

    Mainboard Top View J 19 J 16 J 10 J 13 Figure 3-2. Mainboard Bottom Table 3-2. Mainboard Bottom Jumper and Connectors Item Description Item Description Camera WiFi Antenna LCD Connector Key button Battery Connector Touch Connector Jumper and Connector Locations...
  • Page 34 CHAPTER Troubleshooting Troubleshooting .........4-2 General Information .

  • Page 35: General Information

    NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. Obtain as much detail as possible about the problem.

  • Page 36: Power On Issues

    Power On Issues If the system does not power on, perform the following: Start Swap the BATT Check BATT Swap M/B Figure 4-1. Power On Issues Troubleshooting...

  • Page 37: No Display Issues

    No Display Issues If the system does not display, perform the following: Start Go to power on power on Trouble shooting step Check LCD cable Re-assembly LCD cable assembly ok? Swap LCD panel Check LCD panel Swap M/B Figure 4-2. No Display Issues Troubleshooting...

  • Page 38: Lcd Picture Failure

    LCD Picture Failure If the LCD picture fails, perform the following: Start Re-assembly Check LCD cable LCD cable assembly ok? Swap LCD panel Check LCD panel Swap M/B Figure 4-3. LCD Picture Failure Troubleshooting...

  • Page 39: Touch Screen Failure

    Touch Screen Failure If the touch screen fails, perform the following: Start Check touch Re-assembly touch screen cable assembly screen cable Check touch Swap touch screen panel screen panel Swap M/B Figure 4-4. Touch Screen Failure Troubleshooting...

  • Page 40: Internal Speaker Failure

    Internal Speaker Failure If the internal speakers fail, perform the following: Start Swap SPK Check SPK Swap M/B Figure 4-5. Internal Speaker Failure Troubleshooting...

  • Page 41: Internal Microphone Failure

    Internal Microphone Failure If the internal microphone fails, perform the following: Start Swap Check the Up MIC the Up MIC Swap M/B Figure 4-6. Internal Up Microphone Failure Troubleshooting...

  • Page 42: Extend Earphone Failure

    Extend Earphone Failure If the external earphone fails, perform the following: Start Swap earphone Check earphone fixture fixture Swap M/B Figure 4-7. Extend Earphone Failure Troubleshooting...

  • Page 43: Usb Test Failure

    USB Test Failure If the UBS test fails, perform the following: Start Check USB fixture Swap USB fixture Swap M/B Figure 4-8. USB Test Failure 4-10 Troubleshooting...

  • Page 44: Front Camera Failure

    Camera Failure If the camera fails, perform the following: Start Swap the Check the camera/B Camera/B Swap M/B Figure 4-9. Front Camera Failure Troubleshooting 4-11...

  • Page 45: Wifi Function Test Failure

    WiFi Function Test Failure If the WiFi and Bluetooth function tests fail, perform the following: Start Check the Swap the WiFi antenna antenna Swap M/B Figure 4-10. WiFi & BT Function Test Failure 4-12 Troubleshooting...

  • Page 46: Gps Function Test Failure

    HDMI Function Test Failure If the HDMI function fails, perform the following: Start Swap the Check the HDMI fixture HDMI fixture Swap M/B Figure 4-11. GPS Function Test Failure Troubleshooting 4-13...

  • Page 47: Other Functions Failure

    Other Functions Failure If other functions, such as G-Sensor, SD, Gps,hardware keys, micro-USB, and reset test fail, perform the following: Check the component connection to the mainboard. To test for mainboard fault, swap the mainboard. 4-14 Troubleshooting...
  • Page 48 CHAPTER Service and Maintenance Service and Maintenance Introduction ............... . .5-2 Recommended Equipment .

  • Page 49: Introduction

    Service and Maintenance Introduction This chapter contains general information about the tablet, a list of tools needed to perform the required maintenance and step by step procedures on how to remove and install components from the tablet computer. Recommended Equipment The following tools are required to perform maintenance on the tablet: •...

  • Page 50: Maintenance Flowchart

    Maintenance Flowchart The flowchart in Figure 5-1 provides a graphic representation of the module removal and installation sequences. It provides information on what components need to be removed and installed during servicing Micro SD Card Rear Cover WiFi Antenna Battery Key Function Mainboard Camera...

  • Page 51: Getting Started

    Getting Started The flowchart (Figure page identifies sections illustrating the entire removal and 5-1, 5-3) installation sequence. Observe the order of the sequence to avoid damage to any of the hardware components. Perform the following prior to performing any maintenance procedures: Place the system on a flat work surface.

  • Page 52: Micro Sd Card Removal

    Micro SD Card Removal Press the Micro SD Card. Figure 5-3. Press the Micro SD Card The micro SD card bounce out, and then remove the card. Figure 5-4. Removing the Micro SD Card Service and Maintenance...

  • Page 53: Micro Sd Card Installation

    Micro SD Card Installation Push the micro SD card into the slot until it clicks into place. Figure 5-6. Installing the Micro SD Card Service and Maintenance...

  • Page 54: Rear Cover Removal

    Rear Cover Removal SD Card Removal on page Prerequisite: Down the screen, the left hand grasp product upper portion to make it stable to live, the right hand button stay at the bottom of the cover (the power outlet), pull upward direction, make the cover card hook drop（the only place）.

  • Page 55: Mainboard Removal

    Mainboard Removal Under the lid off, will exhibit 1 ring motherboard A.B.C three FPC card buckle upward pull (90 degrees), can take out FPC outward, then here is 2, marked as D.E.F for demolition. Note: Dismantle the FPC, need to Note: Card buckle launch the upward pull (90...

  • Page 56: Tp Removal

    Remove the camera module,MIC,WIFI ANTENNA Remove the camera module, and then the battery will be removed. REMOVE Camera REMOVE WIFI Antenna RECMOVE Remove the camera module Figure 5-11. TP Removal 6. Demolition of TP, electric blower first transferred to the 50 to 60 centigrade, and then heating around the perimeter of TP, heated to can use the small iron move after TP, then put the box before the two horns in a downward direction pressure, clamp products, as a fulcrum, to touch the cock, and then use the card to the opening, remove along the whole week...

  • Page 57: Lcd Removal

    LCD Removal Demolition of LCD, before the first pull lower left corner, at the bottom of the card hook out of the open LCD again from two side of the card hook will be removed, remove the LCD Demolition LCD Figure 5-13.
  • Page 58 Rear cover Installation Before installing the rear cover, make sure the following are installed: • LCD (if not, perform LCD on page 5-20). • TP (if not, perform TP on page 5-23). • Mainboard (if not, perform Mainboard Installation on page 5-29).
  • Page 59 Connect the LCD cable connector to the mainboard connector. Figure 5-19. Connecting the LCD Cable Connect the camera cable connector to the mainboard connector.. Figure 5-20. Connect the camera cable Service and Maintenance 5-12...
  • Page 60 Connect the cable connector to the mainboard connector. Key Function Figure 5-21. Connect the cable Key Function Press the antenna connector to the mainboard connector. WIFI Figure 5-22. Press the antenna connector WIFI 5-13 Service and Maintenance...
  • Page 61 Connect the battery to the mainboard connector Figure 5-23. Installing the Lower Case (2 of 4) Align and snap the left side latches to attach the lower case to the bezel. Figure 5-24. Installing the Rear Cover (1 of 4) Service and Maintenance 5-14...
  • Page 62 . Snap the right side latches Figure 5-25. Installing the Rear Cover( 2of 4) Snap the bottom side latches. Figure 5-26. Installing the Rear Cover (3 of 4) Snap the top side latches to completely secure the rear cover to the bezel. Figure 5-27.

  • Page 63: Lcd Installation

    LCD Installation LCD Installation（Take out the LCD, took side and oblique direction will be highlighted by LCD FPC through the cover, then place on the left side of the LCD to cover on the same side here is a. button at the bottom of the two CARDS, make its location, and then corresponding icon on the right side cover c.d.2 positioning card hook to respectively on the LCD, makes it sink to the bottom of the positioning card hook）...
  • Page 64 TP Installation Take out the touch screen, reverse placed on the workbench. Tear protective film, and then in the figure 3 stickers position in turn tear apart。 Note: check the location surface cleaning, and static electricity protection tools and wear gloves operation, check the material whether is consistent, and keep the surface of the LCD cleaning, avoid surface dust...

  • Page 65: Mainboard Installation

    Mainboard Installation Installation the mainboard on the Cover components Put the motherboard in the corresponding position At the interface location Twist screws in this location Figure 5-28. Installation the mainboard Installation the speaker on the front cover. Figure 5-29. Installation the speaker Service and Maintenance 5-18...

  • Page 66: Wifi Antenna Installation

    WIFI Antenna Installation Figure 5-30. WIFI Antenna Installation 5-19 Service and Maintenance...
  • Page 67 Function Installation Install the Key Function to its slot on the front cover. Figure 5-31. Installing Key Function Service and Maintenance 5-20...

  • Page 68: Camera Module Installation

    Camera Installation Install the camera to its slot on the front cover. Figure 5-33. Install the camera 5-21 Service and Maintenance...

  • Page 69: Battery Installation

    Battery Installation Install the battery to its slot on the front cover. Figure 5-34. Install the battery Service and Maintenance 5-22...
  • Page 70 CHAPTER Field Replaceable Unit List FRU (Field Replaceable Unit) List ......6-2 Exploded Diagram ..........6-3 FRU List .

  • Page 71: Chapter 6. Fru (Field Replaceable Unit) List

    FRU (Field Replaceable Unit) List This chapter provides the FRU (Field Replaceable Unit) listing in global configurations for the TD070VA1 TAB. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: When ordering FRU parts, check the most up-to-date information available on the regional web or channel.

  • Page 72: Exploded Diagram

    Exploded Diagram Table 6-1. Main Assembly Exploded Diagram Figure 6-1. Main Assembly Exploded Diagram FRU (Field Replaceable Unit) List...

  • Page 73: Fru List

    PC+ABS+20%mineral tiber R0 white powerful VER/BRA TD070VA1 CKET ASSEMBL LCD COVER (WHITE) 60.L4EN9.001 TOUCH PANEL TD070VA1 WM8880,Cortex A9 Dual,1.5Ghz 1G 8G 0.3M+1.9M WLAN 3000mAh White Acer MP MODULE W/FRONT COVER Moudle 60.L4EN9.002 CMOS CAMERA CMOS camera module/ OTHER No MIC OTHER 57.L4EN9.001 MODULE (W/ ZC-TV07-2035+0329 S4.0...

  • Page 74: Fru List

    FRU List Brand Code 3Nod PN Picture Adapter 423050100140 欧陆通 Adapter 423050100150 欧陆通 Adapter 423050100220 欧陆通 欧陆通 Plug 423000000140 欧陆通 Plug 423000000130 FRU (Field Replaceable Unit) List...
  • Page 75 LEVEL CATEGORY Acer PN Acer Description Picture ADAPTER 10W ADS-10BA UL ADAPTER 25.L4EN9.001 Battery DBK AP14W Polymer 1S1P DBK 1 cell 3000mAh Main Dummy P/N for Tab7 BATTERY KT.0010D.001 USB2.0 CABLE 80mm (FOR ADAPTER) CABLE 50.L4EN9.001 CABLE 50.L4EN9.002 ANTENNA WIFI 104mm...

  • Page 76: Screw List

    MAIN BOARD CPU WM8880/1.5G DDR3L/1G eMMC/16G WIFI MAINBOARD NB.L4E11.002 MAIN BOARD CPU WM8880/1.5G DDR3L/1G eMMC/8G WIFI MAINBOARD NB.L4E11.001 SCREW 86.L4EN9.001 SCREW MISCELLANEOUS 47.L4EN9.001 GASKET - HDMI MISCELLANEO 47.L4EN9.002 GASKET - TF CARD MISCELLANEO 47.L4EN9.003 GASKET - BACK of MB MISCELLANEO AL FOIL - BACK COVER 47.L4EN9.004...
  • Page 77 CHAPTER Test Compatible Components Test Compatible Components ......7-2 Android OS Environment Test ........7-2...

  • Page 78: Chapter 7. Test Compatible Components

    Test Compatible Components This computer’s compatibility is tested and verified by Acer’s internal testing department. All of its system functions are tested under Android OS environment. Refer to the following lists for components, adapter cards, and peripherals which have passed these tests.

  • Page 79: Chapter 8. Online Support Information

    This section describes online technical support services available to help users repair their Acer Systems. For distributors, dealers, ASP or TPM, please refer the technical queries to a local Acer branch office. Acer Branch Offices and Regional Business Units may access our website. However some information sources will require a user i.d.

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