Summary of TM-70
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Service manual t t m m - - 7 7 0 0
Page 2: Copyrights
Copyrights i copyrights ©2009 all rights reserved. The information in this document is subject to change without prior notice in order to improve reliability, design and function and does not represent a commitment on the part of the manufacturer. This document contains proprietary information prote...
Page 3: Contents
Contents ii contents copyrights .................................................................................................I liability disclaimer ...................................................................................I contents..........................................................
Page 4: Before You Start
Chapter 1 1 1. 1. Before you start 1. Please unplug the power cable before you start to work. 2. Please read and follow the instructions in this document carefully. Failure to follow these instructions could damage your device and void the warranty. 1.1. Tools suggested all procedures in this docume...
Page 5: Separate The Device
Chapter 2 2 2. 2. Separate the device 1. Remove the right hinge cover and the left hinge cover as shown below. 2. Loosen and remove the two screws by #1 phillips screwdriver as shown below.. 3. Open the device..
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Chapter 2 3 4. Unplug the power connector, speaker cable, vga cable and the touch cable as shown below. 5. Unplug the led indicator connector and remove the led connecter. 6. Loosen the four screws fixing the hinge. 7. Separate the device..
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Chapter 3 4 3. 3. Base unit and back cover dissemble 1. Loosen the four screws to remove the four rubber pads by #1 phillips screwdriver. 2. Remove the base chassis. 3. Unplug the connector and cut the white belt as shown..
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Chapter 3 5 4. Loosen the two screws and remove the metal cover. 5. Loosen the six screws and remove the emi cover. 6. Remove the black tape as shown below. Now you can pull the power connector, speaker cable, vga cable and the touch cable out from the base unit..
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Chapter 3 6 7. Unplug the power cable. 8. Unplug the ac inlet as shown below. 9. Loosen and remove the two screws fixing the power adapter bracket by #1 phillips screwdriver. 10. Remover the power adapter and the power adapter bracket..
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Chapter 3 7 11. Loosen and remove the two screws fixing the ac inlet bracket by #1 phillips screwdriver. 12. Loosen and remove the screw fixing the grounding wire by #1 phillips screwdriver. 13. Remove the ac inlet..
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Chapter 3 8 14. Loosen the two screws and remove the control board. 15. Loosen the six screws as shown. 16. Remove the base unit..
Page 12: The Main Unit
Chapter 4 9 4. 4. The main unit 4.1. Electrical component dissemble 1. Unplug the inverter cable from the ad board. 2. Unplug the speaker cable from the ad board. 3. Unplug the power cable from the ad board..
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Chapter 5 10 4. Unplug the touch cable from the bridge board. 5. Unplug the connecter from the inverter. 6. Loosen the two screws and remove the inverter as shown. 7. Unplug the two cables from the touch control board..
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Chapter 4 11 8. Loosen the four screws and remove the touch control board as shown. 9. Loosen the four screws and remove the bridge board as shown. 10. Loosen the four screws and remove the ad board as shown..
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Chapter 5 12 4.2. Lcd panel assembly dissemble 1. Loosen the two screws fixing the led lens by #1 phillips screwdriver and remover the led lens as shown below. 2. Loosen and remove the ten screws fixing the back cover by #1 phillips screwdriver. 3. Remove the lcd panel assembly as shown below..
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Chapter 4 13 4. Loosen the four screws fixing the speaker assembly and remove the speaker assembly. 5. Loosen the four screws and cut the white belt as shown below..
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Chapter 5 14 6. Loosen the two screws fixing the touch panel other sides as shown below. 7. Remove the touch panel, and now you can access the lcd panel. 8. Loosen the four screws and separate the bracket from the lcd panel..
Page 18: Troubleshooting
Chapter 5 15 5. 5 troubleshooting symptom check points detail steps no power 1. Power cord 2. Power supply 3. Power button cable 4. A/d board 1. Check power cord is well plugged or not 2. If yes to item 1, check power supply led is on with green light. 3. If yes to item2, check power cord to m/b wel...
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Chapter 5 16 symptom check points detail steps lcd turn black 1. Inverter cable 2.Inverter to lcd cable 3. A/d board to lcd cable 4. Inverter board 5. A/d board 1. Shut down power, 2. Open rear cover, open emi chassis, check if inverter cable well connected between a/d board and inverter board 3. If...