Table of Contents
Related Manuals for LG 50PG70FD
Summary of Contents for LG 50PG70FD
- Page 1 Internal Use Only website:http://biz.LGservice.com PLASMA TV SERVICE MANUAL CHASSIS : PA81C MODEL : 50PG70FD 50PG70FD-AB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. INPUT MENU ENTER...
-
Page 2: Table Of Contents
SAFETY PRECAUTIONS..................3 SPECIFICATION....................4 ADJUSTMENT INSTRUCTION ................5 TROUBLE SHOOTING..................11 BLOCK DIAGRAM ....................20 EXPLODED VIEW ................... 25 SVC. SHEET .....................27 PRINTED CIRCUIT DIAGRAM................36 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only 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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Specification
Model Market Appliance Remark 50/60PG30FD-AA Australia Safety : IEC/EN60065 50/60PG70FD-AB : CISPR 13 Class B General Specification ( 60” WXGA ) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 5: Adjustment Instruction
This spec. sheet is applied to all of the PA81A, PA81C Caution: Using ‘power on’ button of the control R/C , power chassis manufactured at LG TV Plant all over the world. on TV. All adjustment process is executed one time through RS- 232C. - Page 6 (4) ADC adjustment is executed automatically. Numbers in the red line is week & year manufacture and numbers in the blue line is check sum. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 7: Adjustment Method
3) After turning VR901, voltage of D.M.M adjustment as same as Va voltage which on label of panel right/top. (Deviation; ±0.5V) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 8 Vs voltage which on label of panel right/top (deviation; ±0.5V) (Fig. 3) 42inch Power PCB Assy Voltage Adjustment (Fig. 5) 60inch Full HD Power PCB Assy Voltage Adjustment Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 9 0.313 0.313±0.002 0.313±0.002 0.329 0.329±0.002 0.329±0.002 0.003 0.003 0.003 [ PC(for communication through RS-232C) -> UART Baud rate : 115200 bps Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 10 - R-Cut / G-Cut / B-Cut is set to 64 - Control G-Gain and B-Gain. - Each Gain is limited to 192. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 11: Trouble Shooting
TROUBLE SHOOTING GUIDE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 12 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 13 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 14 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 15 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 16 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 17 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 18 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 19 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 20: Block Diagram
BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 21 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 22 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 23 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 24 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 25: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 26 Copyright©2008 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
-
Page 27: Svc. Sheet
Copyright©2008 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes... - Page 28 Copyright©2008 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes...
- Page 29 Copyright©2008 LG Electronics. Inc. All right reserved. - 30 - LGE Internal Use Only Only for training and service purposes...
- Page 30 Copyright©2008 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only Only for training and service purposes...
- Page 31 Copyright©2008 LG Electronics. Inc. All right reserved. - 32 - LGE Internal Use Only Only for training and service purposes...
- Page 32 Copyright©2008 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...
- Page 33 Copyright©2008 LG Electronics. Inc. All right reserved. - 34 - LGE Internal Use Only Only for training and service purposes...
- Page 34 Copyright©2008 LG Electronics. Inc. All right reserved. - 35 - LGE Internal Use Only Only for training and service purposes...
- Page 35 MAIN(TOP) Copyright©2008 LG Electronics. Inc. All right reserved. - 36 - LGE Internal Use Only Only for training and service purposes...
-
Page 36: Printed Circuit Diagram
MAIN(BOTTOM) Copyright©2008 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes... - Page 37 CONTROL(BOTTOM) CONTROL(TOP) PRE-AMP(TOP) PRE-AMP(BOTTOM) Copyright©2008 LG Electronics. Inc. All right reserved. - 38 - LGE Internal Use Only Only for training and service purposes...
- Page 38 May, 2008 P/NO : MFL48162001 Printed in Korea...