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Summary of Contents for LG 34UC79G
- Page 1 Internal Use Only LED MONITOR SERVICE MANUAL SERVICE MANUAL CHASSIS : LM61B MODEL : 34UC79G 34UC79G-BG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : P/NO : MFL68920199 (1608-REV00)
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Page 2: Table Of Contents
TROUBLESHOOTING GUIDE ............... 10 BLOCK DIAGRAM ................. 11 EXPLODED VIEW .................. 12 DISASSEMBLY ..................13 SCHEMATIC CIRCUIT DIAGRAM ........... APPENDIX - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Safety Precautions
An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Specification
Weight : 0.09kg±10%, Power Input: AC90~264V 47~63Hz Output: DC 19V 3.42A, 65W Adapter Color : Black, Weight : 0.289kg±10% - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 5 1080 H(Pixels) 368.83 135.6 2720 2560 2560x1080 V(Lines) 1130 1080 H(Pixels) 442.6 162.72 2720 2560 2560x1080 V(Lines) 1130 1080 - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 6 31.47 720x480P 31.47 1280x720P 1920x1080P 67.5 1280x720P 37.5 1920x1080P 56.25 2560x1080P 56.25 2560x1080P 720x576P 31.25 1920x1080I 33.75 1920x1080I 28.125 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 7: Adjustment Instruction
Save Warm(6500K) Color by commanding COLOR SAVE (0x14h) (EDID V1.4 Only) Command code. Physical Ad- **** 10/20 dress (HDMI 1/2) ** Protocol : DDC 2AB - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 8 5. Signal composition for adjustment Module name LM340WW2(SS)(A1) 5.1. I2C (100K BPS) 5.2. COMMUNICATION START # Until ACK BIT goes LOW, Repeat it. - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 9 ■ 8-byte write L : 0x00,0x10,….0x70 5.6.5. EDID Read - DDC2B Command.(A0/A1) - 128 Byte transfer of EDID Buffer of MICOM - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 10: Troubleshooting Guide
6) USB Hub IC : function of HUB to the PC, should be connect to the PC USB-A/B cable. Location No. : IC901 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 11: Block Diagram
BLOCK DIAGRAM - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 12: Exploded View
Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 13: Disassembly
1) Lay the set by the Curved PAD in Box 5) Disassemble the Back Cover (By using JIG) 2) Disassemble the Stand after pull the button to down - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 14 6) Disconnect LED Cable , Control Assemble (Latch Type) ,E-Dp Cable 7) Remove the screw. (17EA) - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 15 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SIGNAL INPUT THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 16 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN IC / Key THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 17 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN IC-CAP THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 18 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 19 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AMP / HP THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 20 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LED Driver IC LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. USB HUB LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
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