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LG 50PB560B Service Manual
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LG 50PB560B Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : PU41A
MODEL : 50PB560B
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL68001102 (1310-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
50PB560B-UA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PU41A MODEL : 50PB560B 50PB560B-UA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL68001102 (1310-REV00) Printed in Korea...
  • Page 2 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............5 BLOCK DIAGRAM .................. 12 EXPLODED VIEW .................. 13 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3 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 2) Humidity : ~ 80 % Storage Environment 1) Temp : -20 ~ 60 deg 2) Humidity : ~ 85 % - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 ■ EDID (The Extended Display Identification Data ) ■ Color Temperature (White Balance) Adjustment ■ Make sure RS-232C control ■ Selection Factory output option - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 ● You can see “ADC Component Success” ● Component1 1080p Adjust is same method. ● Component 1080p Adjustment in Component input mode - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 ■ It only needs to PCM EDID D/L for North America Product. (PU41A) < For write EDID data, setting Jig and another instruments > ■ EDID data (Model name = LG TV) <HD> -MODEL NAME : 50PB560B -PCM (C/S : 0x3D, 0x0D)
  • Page 8 - See Working Guide if you want more information about EDID communication. < connection Diagram for Adjustment White balance > - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 ● “wb 00 ff”: End of white balance adjustment (inner pattern - MEDIUM : T=9300K, ∆uv=0.000, x=0.285 y=0.293 disappear) - WARM : T=6500K, ∆uv=0.000, x=0.313 y=0.329 - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 (3) After turning VR502,voltage of D.M.M adjustment as same as Va voltage which on label of panel left/top (deviation; ±0.5V) - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 *US, *CC, *WM Tool option 1 20740 20740 Tool option 2 1286 1286 Tool option 3 40969 40969 Country - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 BLOCK DIAGRAM Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 12 - Only for training and service purposes...
  • Page 13 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
  • Page 14 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. JACK INTERFACE Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR Tuner block THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 2012-06-201 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 2012-06-01 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR Memory.LVDS,IR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 2012-06-01 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Power,AMP Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 Digital TV Audio Trouble Shooting Analog TV Audio Trouble Shooting Component / RGB / AV Audio Trouble Shooting HDMI Audio Trouble Shooting USB Trouble Shooting Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 (External Input) (Audio Out) (Micom) Main IC inner PM AV1_LR I2S_S7LR TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 Maybe Serial Flash Memory problem at IC505 Check signal transition Maybe NAND Flash Memory or IC504 IC400 have troubles Check DDR Memory /Replace one Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1/) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 Electrical Specifications Power Supply Sequence Check CAS Input Signal Timing Specification Control Signal Register It should satisfy the Pixel Clock on CAS. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 * Module I2C check By Slave By Master By Slave * 조정메뉴 Module ver. 확인 Master : Image Board Slave : PDP Module Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 * Tuner I2C check * ChangeTuner type at adjust menu Check IF Signal pin Maybe Tuner has problems Maybe Mstar IC400 has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 Replace one of Check Tuner Power IC608,L606 (3.3V,1.1V) & Recheck Check CVBS Signal Maybe Tuner has problems Maybe Mstar IC400 has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1/2, RGB) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 R106/R107/R108 R106/R107/R108 (Termination resistor) & Recheck Check Component Signal R429/R436/R438 Replace it R446/R444/R434 Main IC Input Maybe Mstar IC400 has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 Check CVBS Signal R424/426 R424/426 & Recheck Check CVBS Signal Replace one of R4425 R4285& Recheck Maybe Mstar IC400 has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 Check HDMI Cable Check HDMI Jack Replace Jack JK200,JK201 Check I2C Signal(EEPROM) Replace It & Recheck R231/R2246, R207/R2208 Maybe Mstar IC400 has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 Replace It & Recheck (IC101) R628 * Amp. I2C check Check Mstar S7R I2S Output Replace It & Recheck AR600 Maybe Mstar IC400 has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1/ (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 Check video output trouble shooting Maybe Mster internal audio DSP has Follow procedure All source audio problems. trouble shooting Replace It Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 Follow procedure All source audio problems. < SIF waveform – sample > trouble shooting Replace It - Defend on the input signal. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 Check Jack JK211,JK202,JK205 Replace Jack Maybe Mstar audio block has Follow procedure All source audio problems. trouble shooting Replace It Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 Follow procedure HDMI video Check video output trouble shooting Maybe Mstar audio block has Follow procedure All source audio problems. trouble shooting Replace it Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 46 Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) AV1_LR I2S_S7R TAS5733 COMP1_LR EXT_IN (Comp1) (USB) HDMI_Rear(D port) SIDE HDMI_PORT Side USB Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 - USB power could be disabled by inrushing current - In this case, remove the device and try to reboot the TV (AC power off/on) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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