LG 42PA4500-UF Service Manual Download Page 23 | Manualshive

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Copyright © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes

LGE Internal Use Only

1. PCB Layout.

GP2R (206 x 183)

LM1 (206 x 141.5)

※

LM1 use internal EDID&HDCP. (LM1 is Removing the EEPROM for EDID&HDCP)

LM1 is optimizing Power block. (LM1 is reducing DC/DC, LDO, power application)

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Summary of Contents for 42PA4500-UF

Page 1: ... eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL67444303 1112 REV00 PLASMA TV SERVICE MANUAL CHASSIS PA21A MODEL 60PA6500 60PA6500 TF CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL ...

Page 2: ...opyright LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 6 BLOCK DIAGRAM 13 EXPLODED VIEW 14 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ...e of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If th...

Page 4: ...models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC 4 Module General Specification 60 2D FHD No Item Specification ...

Page 5: ...3 PAL I II 4 SECAM L L 5 DVB T 6 DVB C EU PAL Market 3 Receiving system Analog Upper Heterodyne Digital COFDM 4 Scart Jack 1EA PAL SECAM 5 Component Input 1EA Y Cb Cr Y Pb Pr 6 RGB Input 1EA RGB PC Analog D Sub 15Pin 7 RS232C 1EA SVC 8 HDMI Input 2 or 3EA HDMI PC HDMI DTV HDMI1 DVI HDMI2 HDMI3 9 Audio Input 2EA RGB DVI Audio Component L R Input 10 SPDIF Out 1 EA SPDIF Out 11 USB 1EA for SVC S W Do...

Page 6: ...ODE 1 Press the POWER ON KEY on R C for adjustment 2 OSD display and screen display PATTERN MODE Set is activated HEAT run without signal generator in this mode Single color pattern WHITE of HEAT RUN MODE uses to check panel Caution If you turn on a still screen more than 20 minutes Especially digital pattern cross hatch pattern an after image may be occur in the black level part of the screen 8 P...

Page 7: ... 1 ADC Enter Service Mode by pushing ADJ key Enter Internal ADC mode by pushing key at 5 ADC Calibration Caution Using power on button of the Adjustment R C power on Multi vision ADC Calibration Protocol RS232 Adjust Sequence aa 00 00 Enter Adjust Mode xb 00 40 Component1 Input 480i ad 00 10 Adjust 480i Comp1 xb 00 60 RGB Input 1024 768 ad 00 10 Adjust 1024 768 RGB aa 00 90 End Adjust mode Require...

Page 8: ... to the module less than 10cm distance keep it with the surface of the Module and Color Analyzer s Prove vertically 80 100 3 Aging time After aging start keep the power on no suspension of power supply and heat run over 5 minutes Using no signal or full white pattern or the others check the back light on Auto adjustment Map RS 232C RS 232C COMMAND CMD ID DATA Wb 00 00 White Balance Start Wb 00 ff ...

Page 9: ... 24C02 by using DDC2B protocol Check whether written EDID data is correct or not For SVC main Ass y EDID have to be downloaded to Insert Process in advance 4 5 EDID DATA 1 All Data HEXA Value 2 Changeable Data Serial No Controlled Data 01 Month Controlled Data 00 Year Controlled Check sum 4 6 EDID DATA Auto Download 1 Press Adj key on the Adj R C 2 Select EDID D L menu 3 By pressing Enter key EDID...

Page 10: ...ss the EYE Key on the adjustment remote controller 2 Check the Sensor DATA It must be under 10 and keep the data longer than 1 5s 3 Check OK Sensor DATA 0 4095 Power Saving Mode 0 12 IF you press IN STAP Button change Green Eye check OSD Input HEX HDMI1 10 HDMI2 20 HDMI3 30 EDID C S data 2D FHD HDMI RGB check sum Hex Block 0 0x63 0x7C Block 1 0x76 HDMI1 0x66 HDMI2 0x56 HDMI3 EDID C S data 2D HD HD...

Page 11: ...by Manufacturing Technology Group 3 Serial number D L must be conformed when it is produced in production line because serial number D L is mandatory by D book 4 0 Manual Download Model Name and Serial Number If the TV set is downloaded By OTA or Service man Sometimes model name or serial number is initialized Not always There is impossible to download by bar code scan so It need Manual download 1...

Page 12: ...ad CI Key 4 When download succeed you can see OK on 6 Each Chassis has it s own MAC Address Please be careful of download Check the method of RS232C Command 1 into the main ass y mode RS232 aa 00 00 2 check the key download for transmitted command RS232 ci 00 10 3 result value normally status for download OKx abnormally status for download NGx 8 SW Download Guide Put a bin to USB Stick and Turn on...

Page 13: ... 13 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes BLOCK DIAGRAM ...

Page 14: ...PLODED VIEW Many electrical and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without per...

Page 15: ...1 16W 5 L101 EU 120 ohm Q114 RSR025P03 EU S D G CI_TS_DATA 0 PCM_A 10 R150 10K EU Q104 MMBT3904 NXP EU E B C AR101 33 EU R113 75 EU R110 0 READY C107 5600pF 50V EU R130 33 EU 1 16W 5 AV SC1_CVBS_IN 5V D112 1 MMBD6100 MULTI A2 C A1 CI_ADDR 2 DTV MNT_VOUT PCM_A 1 CI_OE PCM_5V_CTL R138 2K EU R198 10K READY REG R151 10K EU BUF1_FE_TS_VAL_ERR R154 5 6K EU R111 10K EU CI_TS_CLK R116 470K EU SC_RE1 AR104...

Page 16: ...A_3 D2 _HDMI3 R240 1K SIDE_HDMI_2 R252 75 BSS83 Q203 READY S B D G JK202 SIDE_HDMI_2 14 13 5 D1_GND 20 BODY_SHIELD 12 11 2 D2_GND 19 18 10 CK 4 D1 1 D2 17 9 D0 8 D0_GND 3 D2 16 7 D0 6 D1 15 R233 100K USA R205 33 R228 10K USA CK _HDMI3 5V_DET_HDMI_1 R245 33 SIDE_HDMI_2 3 3V R286 10K SIDE_HDMI_1 R208 33 HDMI_1 5V_HDMI_1 D0 _HDMI2 HPD1 TN CEC_REMOTE 3 3V R243 0 JK210 XRJV 01V 0 D12 080 ET_NET 1 1 2 2...

Page 17: ...V R317 82 R310 1K RF_SWITCH 3 3V_TU R30622 TU_SDA FE_TS_DATA 0 7 R302 0 DVB_T2 2 5V_TU TU303 TDSN_B001F SBTVD 1 RF_S W_CTL 2 RESET 3 SCL 4 SDA 5 B1 3 3V 6 SIF 7 B2 1 8V 8 CVBS 9 NC_1 10 NC_2 11 NC_3 12 B3 3 3V 13 B4 1 23V 14 NC_4 15 GND 16 ERROR 17 SYNC 18 VALID 19 MCLK 20 D0 21 D1 22 D2 23 D3 24 D4 25 D5 26 D6 27 D7 28 SHIELD TU302 TDSS G101D DVB_T C 5 3 3V 11 DIF N 2 RESET 10 DIF P 4 SDA 1 NC 9 ...

Page 18: ..._13 E19 GND_14 E22 GND_15 F8 GND_16 F17 GND_17 F18 GND_18 F19 GND_19 G8 GND_20 H8 GND_21 N22 GND_22 N21 GND_23 N20 GND_24 M22 GND_25 M21 GND_26 M20 GND_27 F10 GND_28 V15 GND_29 W16 GND_30 V8 GND_31 T18 GND_32 G10 GND_33 G11 GND_34 G12 GND_35 G13 GND_36 G14 GND_37 G17 GND_38 G18 GND_39 G19 GND_40 G24 GND_41 H11 GND_42 H12 GND_43 H13 GND_44 H14 GND_45 H15 GND_46 H16 GND_47 H17 GND_48 H18 GND_49 H19 ...

Page 19: ...31 I O2 32 I O3 33 NC_20 34 NC_21 35 NC_22 36 VSS_2 37 VCC_2 38 NC_23 39 NC_24 40 NC_25 41 I O4 42 I O5 43 I O6 44 I O7 45 NC_26 46 NC_27 47 NC_28 48 NC_29 17 ALE 3 NC_3 6 NC_6 16 CLE 15 NC_10 14 NC_9 13 VSS_1 12 VCC_1 11 NC_8 10 NC_7 9 CE 8 RE 7 R B 4 NC_4 5 NC_5 25 NC_16 24 NC_15 23 NC_14 2 NC_2 22 NC_13 21 NC_12 1 NC_1 20 NC_11 19 WP 18 WE A TMA13 H5TQ1G63DFR H9C IC501 A0 N3 A1 P7 A2 P3 A3 N2 A...

Page 20: ...V C681 1000pF 50V R642 22 C660 0 1uF 50V C628 4700pF 50V C639 22pF 50V READY R661 10K 1 25V_TU 1 8V_TU R624 2K 5V_ON C649 0 01uF R622 0 R656 47K 1 C677 0 22uF 50V AUD_MASTER_CLK DCON_EN R635 10K C674 0 22uF 50V DCON_EN L606 CIS21J121 3 3V R655 100K 1 5V R657 43K 1 C643 0 1uF 50V R633 10K R626 0 C620 10uF 25V P600 SMAW200 H18S1 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 15 10 5 19 R634 56K R650 33K R666 ...

Page 21: ......

Page 22: ... reserved Only for training and service purposes LGE Internal Use Only GP2R LM1 Training Manual Table of contents 1 PCB layout 2 GP2R vs LM1 3 GP2R Block Power I2C 4 LM1 Block Power I2C 5 LM1 SOC Power sequence 6 Memory test 7 Pen touch overview ...

Page 23: ...rved Only for training and service purposes LGE Internal Use Only 1 PCB Layout GP2R 206 x 183 LM1 206 x 141 5 LM1 use internal EDID HDCP LM1 is Removing the EEPROM for EDID HDCP LM1 is optimizing Power block LM1 is reducing DC DC LDO power application ...

Page 24: ...x141 5 change PCB Size smaller than GP2R Main IC S7R S7LR Internal sub Micom PM block Jack Layout Slim Depth Slim Depth Same Sub Assy PZ Tool PA Tool GP2R 15pin LM1 8pin PSU 50R3 XP5 B d 50R4 UP1 B d Reduce power on time SW GP2R LM1 PDP only code JIG GP2R LM1 Support DFT JIG Develop new WAFER and CABLE 12 years Power Wafer 18P 18P Stand by 0 3W Stand by 3 5V O O Stand by 3 5V 12V_secondary X X Not...

Page 25: ...V_ST 4 845 5 355 5 01 86 0 009 5V_ST_EN 4 845 5 355 5 00 17 0 710 3 3V_AVDD 3 14 3 6 3 31 0 5 15 0 285 2 5V_AVDD 2 38 2 62 2 53 20 0 200 1 5V_DDR_IN 1 425 1 575 1 57 1 5V 5 20 0 310 1 26V_VDDC 1 2 1 32 1 27 30 0 770 3 3V_ST 3 234 3 366 3 30 0 5 19 0 024 17V 16 15 17 85 17 03 1 09A 1 420 5V_TU 4 75 5 25 4 99 None 20 0 170 5V 4 845 5 355 5 03 57 2 600 3 3V_TU 3 15 3 46 3 26 None 26 0 320 1 2V_TU 1 2...

Page 26: ...6 3V C608 0 1u 16V L602 2A C615 0 1u 16V C609 10u 16V C611 0 1u 16V C610 10u 16V C612 0 1u 16V C637 10u 10V C647 10u 10V C650 0 1u 16V C651 10u 10V C652 10u 10V C653 0 1u 16V 2 5V_AVDD IC604 TJ3964 C616 22u 6 3V C623 0 1u 16V S7_MPLL IC503 S FLASH MX25L8005M2I 15G C552 0 1u 16V SUB ASSY 3 3V_AVDD 2 5V_AVDD 17V IC303 Audio AMP STA338BWG13TR 5V_TU IC605 TPA54319 L610 2A C636 0 01u 50V C341 68u 35V C...

Page 27: ... C659 22u 6 3V C660 0 1u 16V C661 0 1u 16V L100 2A C126 0 1u 16V C128 0 1u 16V IC101 74LCX244 C120 0 1u 16V IC303 Audio AMP C332 0 1u 50V C103 22u 10V C104 0 1u 16V SPDIF C235 0 1u 16V L708 2A C725 10u 16V C728 0 1u 16V C746 10u 10V C747 10u 10V C748 0 1u 16V L710 2A 1 0V 0 1u 16V 13ea C750 0 1u 16V C753 22u 16V C754 0 1u 16V 3 3V_3D C735 0 1u 16V IC707 AZ1117ST C751 0 1u 16V 1 8V R834 0Ω1 10W C75...

Page 28: ...ts reserved Only for training and service purposes LGE Internal Use Only IC600 3 3V_AVDD AZ1085S IC604 2 5V_AVDD TJ3964S 3 3 LDO DC DC Start up Vin Vout Vin Vout IC602 1 5V_DDR_IN TPS54319 Vin Ve n Vo Io IC603 1 26V_VDDC TPS54319 Vin Ve n Vo Io ...

Page 29: ...Copyright 2011 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only IC606 3 3V AZ1085S Vin Vout 3 4 LDO DC DC Start up IC605 5V_TU TPS54231 Vin Ve n Vo Io ...

Page 30: ...R 0x38 Ch5 AMP_SDA AMP_SCL 3 3 V 2K R360 R359 U1 TGPIO1 DNGAIN TGPIO0 UPGAIN U2 LG8300 0x74 Ch4 LG8300 0x74 Ch4 F13 G14 P_SCL P_SDA MODULE 0x1C Ch4 MODULE 0x1C Ch4 3 3 V_A VDD MODULE_SCL 3DF_SCL 3 3K R1412 R1411 I2S_IN_SD GPIO176 SPDIF_IN GPIO177 MODULE_SDA 3DF_SDA 4 7K R780 R781 ISP ISP DDCA_CK UART0_RX DDCA_DA UART0_TX B5 A5 RGB_DDC_SCL RGB_DDC_SDA EEPROM RGB 0xA0 Ch8 EEPROM RGB 0xA0 Ch8 5 0 V_S...

Page 31: ...3 3A AP2191 USB 3 5V St 3 3V ST AP2121 LM1 Power Block Amp 1 26V Core AOZ1073 3A 1 5V DDR AOZ1073 3A 2 5V LDO 3 3V AVDD LDO 3A 1 25V Tuner LDO 3 3V Standby LDO AP2121 FET SW GP2R Power Block 5 1V 17V St 5V 5V Tuner TPS54231 2A Amp 3 3V Multi LDO 3A 1V 3D core AOZ1073 3A 3 3V 3D LDO 3A 1 8V 3D DDR LDO AP2191 USB DC DC 4 LDO 7 DC DC 2 LDO 4 3 3V Multi TPS54327 3A 1 25V _TU LDO 1A 1 8V Tuner LDO 1A 2...

Page 32: ..._CI C643 0 1uF 50V 1608 C638 C646 0 1uF 50V 1608 Audio AMP C627 10uF 6 3V 1608 L604 120 Ohm 2A 1608 3 3V_TU C614 0 1uF 16V 1005 C615 10uF 16V 6 3V 3216 1608 change Tuner 3 3V to 1 8V AP1117E18G 850mW C631 10uF 6 3V 1608 C618 0 1uF 16V 1005 L101 120 Ohm 2A 1608 C137 0 1uF 16V 1005 Spec 850mV 16mVrms 283mVpp Spec 165mV 8 66mVrms 37 5mVpp Spec 165mV 23 4mVrms 166 6mVpp Spec 165mV 8 5mVrms 186 6mVpp S...

Page 33: ...uF 16V 1005 C554 10uF 10V 6 3V 2012 1608 change C552 0 1uF 16V 1005 Spec 165mV 9 7mVrms 67 5mVpp C605 10uF 6 3V 1608 x3 0 1uF 16V 1005 C427 10uF 10V 6 3V 2012 1608 0 00636 change LM1 C682 0 1uF 16V 1005 L613 120 Ohm 2A 1608 C671 10uF 10V 6 3V 2012 1608 change x3 120 Ohm 2A 1608 1 25V_TU C625 10uF 6 3V 1608 3 3V to 1 25V AP1117EG 13 mW 3 3V to 2 5V TJ3940S 2 5V 714mW LM1 C685 10uF 6 3V 1608 C684 0 ...

Page 34: ...5 V 4 3 P_5V L600 120 Ohm 5A 2012 C608 10uF 10V 16V 2012 3216 0 0005 change 5V C610 0 1uF 16V 1005 USB OCD SPDIF C219 0 1uF 16V 1005 Spec 250mV 7mVrms 70mVpp MOFET Switch L100 120 Ohm 2A 1608 C104 0 1uF 16V 1005 PCMCI C101 0 1uF 16V 1005 5V_CI_ON C100 22uF 10V 16V 3216 3225 0 017 change Spec 250mV 31mVrms 135 4mVpp ...

Page 35: ... 10uF 10V 6 3V 2012 1608 change L606 120 Ohm 5A 2012 C653 4 10uF 25V 3225 C651 56 22uF 16V 3225 1 5V_DDR_IN LM1 MIU0 1 L500 500 Ohm 3A C544 10uF 10V 6 3V 2012 1608 change C545 0 1uF 16V 1005 VCC_1 5V_DDR DDR1 2 x2 1000pF 50V 1005 x2 0 1uF 16V 1005 C467 1000pF 50V 1005 L412 120 Ohm 2A 1608 x4 10uF 10V 6 3V 2012 1608 change x4 0 1uF 16V 1005 5V to 1 1V TPS65253RH D adjustable 0 25 C468 1uF 10V 1005 ...

Page 36: ...l Use Only S T B Y 4 5 STBY 5V to 3 3V AP2121N 3 3 0 3A C600 10uF 10V 16V 2012 3216 0 0005 change C601 0 1uF 16V 1005 C604 1uF 6 3V 1005 3 3V_ST L406 120 Ohm 2A 1608 C469 0 1uF 16V 1005 Spec 250mV 23mVrms 150mVpp RS232C C228 0 1uF 16V 1005 LM1 C556 0 1uF 16V 1005 Serial Flash C547 0 1uF 16V 1005 SUB Ass y ...

Page 37: ...N_BCK GPIO150 I2C_SCKM2 DDCR_CK GPIO72 I2C_SDAM2 DDCR_DA GPIO71 IC400 AE6 AD6 AB5 AB3 D9 D7 D8 C8 P23 P24 TU_SCL TU_SDA AMP_SCL AMP_SDA P_SCL P_SDA SUB_SCL SUB_SDA I2C_SCL I2C_SDA P500 LVDS TU300 TDSS G201D IC300 STA368BWG P501 KEY IR PIN8 3 3V_TU R3082 2K R309 2 2K 3 3V R624 2K R623 2K 3 3V_AVDD R468 3 3K R466 3 3K 3 3V_ST R539 4 7K R538 4 7K SCL_3 3V_MOD SDA_3 3V_MOD IC503 EEPROM IC502 HDCP OTP ...

Page 38: ...service purposes LGE Internal Use Only 5 GP4 LM1 SOC Power Sequence Procedure Hot Point SOC_RESET 3 3V_AVDD 1 10V_VDDC 1 5V_DDR_IN 3 3V_AVDD 1 10V_VDDC 1 5V_DDR_IN 0ms Multi_PWR 288ms Spec before all pwr input raise SOC_RESET SOC_RESET timing and Power sequence are ok Threshold ...

Page 39: ...hts reserved Only for training and service purposes LGE Internal Use Only Solution Value of Capacitor and resister 1 2 0CK226DC67A 22uF 6 3V 0 0117 Cap Æ 22uF Resister Æ 100 3 3V_AVDD SOC_RESET Threshold 5 GP4 LM1 SOC Power Sequence Procedure ...

Page 40: ...011 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only STEP1 Setting like below Red box STEP2 Call direct MIU Auto BIST function from Menu 6 Memory margin test DDR ...

Page 41: ...ervice purposes LGE Internal Use Only STEP3 Setting like below and push Start DQS Red box STEP4 below picture is test result Red box is timing margin Normal operating board has timing margin 7 9 If timing margin under 7 it s some problem DDR or Main MIU 6 Memory margin test DDR ...

Page 42: ...Copyright 2011 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 7 Pen touch overview Installation_Pentouch Program ...

Page 43: ...Copyright 2011 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 7 Pen touch overview Installation_Pentouch Program ...

Page 44: ...rograms Check the LG Pentouch Multi touch Driver or Pentouch TV 2 Check USB Dongle Driver in Device Manager LG Pentouch Multi touch Driver MultiTouch LG Pentouch Multi touch Driver BUS LG Pentouch Multi touch Driver Dongle the Dongle Driver should be displayed when connected USB Dongle 7 1 Pen touch overview Check the installation status ...

Page 45: ...Copyright 2011 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 7 2 Pen touch overview Pairing between Touch Pen and Dongle ...

Page 46: ...Copyright 2011 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 7 3 Pen touch overview Pairing between Touch Pen and Dongle ...

Page 47: ...r the mouse to start the Pentouch program Pressing the Home button on the touch pen works in the same way as right clicking the mouse Viewing the Screen Settings I mage shown may differ from your monitor If you press the OK button on the remote control the screen shown below appears to indicate that the screen settings have been updated successfully The text Pentouch should be displayed to indicat...

Page 48: ...B Dongle RF Wireless communication 2 4GHz Principle 2 The position data processed Pentouch TV Application looks like PC mouse Step 1 USB Dongle receive the position data Step 2 USB Dongle Driver parsing the positon Step 3 Pentouch TV application drawing and click function Step 4 The result was displayed PDP TV through HDMI or RGB cable The HDMI or RGB signal is PC s output that configuration set b...

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