LG 27GK750F Service Manual
Chassis: lm71f
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Also See for 27GK750F:
- Owner's manual (44 pages) ,
- Owner's manual (44 pages) ,
- Owner's manual (38 pages)
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Summary of Contents for LG 27GK750F
- Page 1 Internal Use Only LED MONITOR SERVICE MANUAL SERVICE MANUAL CHASSIS : LM71F MODEL :27GK750F CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69406833(1709-REV00)
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Page 2: Table Of Contents
SPECIFICATION ..................4 Firmware Upgrade Method ............... 8 BLOCK DIAGRAM ................. 14 EXPLODED VIEW .................. 15 DISASSEMBLY ..................16 TROUBLE SHOOTING GUIDE .............. 18 - 2 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes... -
Page 3: Safety Precautions
When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes... -
Page 4: Specification
Cable HDMI Weight : 0.091kg± 10% P/N : EAD63954401 CABLE : 100Ω± 10 Ω CONNECTOR : 100 Ω± 15 Ω -4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 5 Factory calibration report 0.002kg Checked SET accessory / Refer to BOM P/No Specification Applying module list EAJ64287601 M270HTN(AUO) Checked Copyright © LG Electronics. Inc. All rights reserved. -5 - LGE Internal Use Only Only for training and service purposes...
- Page 6 1920 148.50 1920 x 1080 V(Lines) 1125 1080 H(Pixels) 166.59 2080 1920 346.50 1920 x 1080 V(Lines) 143.98 1157 1080 Copyright © LG Electronics. Inc. All rights reserved. -6 - LGE Internal Use Only Only for training and service purposes...
- Page 7 6.1.3 HDMI Video input Factory support Horizontal Vertical mode frequency frequency (Preset Mode) (KHz) (Hz) 480P 31.5 720P 1080P 67.5 -7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 8: Firmware Upgrade Method
How to download monitor Firmware How to do ISP Step1. Connect Realtek Jig to the monitor and PC. r and PC. Step2. Install like as attached file. - Page 9 How to download monitor Firmware Step3. Run “RTDToll” Step4. [ISP] Icon Click...
- Page 10 How to download monitor Firmware Step5. Check “Access method”. LG Monitor JIG(P/N RAD33028001) [LG Monitor JIG: FTDIUsb]...
- Page 11 How to download monitor Firmware Step6. Option Check Enter [ Communication Option ] menu and then uncheck the [ Check ACK] Set User data(FE2P) area select option...
- Page 12 How to download monitor Firmware Step7. Following below step 1 Check the Bank 0 checkbox 2 Click [ … ] button 3 select the SW update file( *.bin or *. hex) and then click [ open ] button.
- Page 13 How to download monitor Firmware Step8. ISP Click Thunder icon button you see the progress bar and the status window. after finishing SW update, you see the [success] message on status window.
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Page 14: Block Diagram
BLOCK DIAGRAM Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 15: Exploded View
Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. -15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 16: Disassembly
Fig.2 Disassemble the Stand body with pulling down the button. Fig 3 Remove the Screw(4EA) and disassemble the back cover Fig 4 Disassemble the back cover (Latch Type) . - 16 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes... - Page 17 ■ Disassemble method Fig.6 Disassemble the C/A and Joy stick assy Fig 5 Remove the Cable(3EA)、Tape(2EA) and disassemble metal frame. - 17 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes...
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Page 18: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER Copyright © 2010 LG Electronics. Inc. All right reserved. -18 - LGE Internal Use Only Only for training and service purposes... - Page 19 2. NO SCREEN ON Copyright © 2010 LG Electronics. Inc. All right reserved. -19 - LGE Internal Use Only Only for training and service purposes...
- Page 20 3. No Video Copyright © 2010 LG Electronics. Inc. All right reserved. -20 - LGE Internal Use Only Only for training and service purposes...
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