LG 60PK750 Page 48 Service Manual Download

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< SPDIF waveform – sample >
- Defend on the input signal.

Making

전자

- 6-2

Revision

PDP TV

Input

Block

Optical Audio Problem

Check Signal (JK1000 #3)

Check SPDIF signal (R1051)

Replace BCM(IC100)

Check 5V #2 on JK1003

12/15

Check Q501 Output (L516)

2010. 2 . 22

Summary of Contents for 60PK750

Page 1: ...S READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS PA02A MODEL 60PK750 60PK750 AA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL63289204 1004 REV00 ...

Page 2: ...nly Copyright 2010 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 11 EXPLODED VIEW 12 SVC SHEET ...

Page 3: ...t s Neck 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 the exposed met...

Page 4: ...ation by part number in accordance with SBOM 5 The receiver must be operated for about 20 minutes prior to the adjustment V Test Method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC V Module Specification 1 60 FHD 60PK750 AA Australia New Zealand LG Model Name Market Place Brand Model Name 60PK750 AA Remark Safety IEC EN60065 EMI CI...

Page 5: ...PK 50R TA PAL SECAM BG DK PAL I 3 Receiving system Analog Upper Heterodyne Digital COFDM 4 Video Input 2EA PAL SECAM NTSC 5 Component Input 2EA Y Cb Cr Y Pb Pr 6 RGB Input RGB PC Analog D Sub 15Pin 7 HDMI Input 4EA HDMI PC HDMI1 DVI 1 2 3 4 HDMI DTV Upper 70 tool But under 60 tool HDMI 3EA 8 Audio Input 5 EA RGB DVI Audio Component AV L R Input 9 SPDIF Out 1 EA SPDIF Out 10 USB 2 0 For SVC S W Dow...

Page 6: ...n the circumstance of above 15 C for 3 hours O After RGB Full White in HEAT RUN Mode the receiver must be operated prior to the adjustment O Enter into HEAT RUN MODE 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 yo...

Page 7: ...1 Press the ADJ KEY on R C and enter EZ ADJUST 2 Select 5 EDID D L by using D E CH and press ENTER V 3 Select Start and press navigation key G 4 EDID download is executed automatically 5 Press EXIT key on R C Caution Never connect HDMI D sub Cable when the user download EDID V Use the proper cables below for EDID Writing Edid data and Model option download RS232 7 LGE Internal Use Only Copyright 2...

Page 8: ...gram for Measuring refer to fig 4 Adjustment method 1 Va adjustment 1 Connect terminal of D M M to Va pin of P811 connect terminal to GND pin of P811 2 After turning VR901 voltage of D M M adjustment as same as Va voltage which on label of panel right top deviation 0 5V 2 Vs adjustment 1 Connect terminal of D M M to Vs pin of P811 connect terminal to GND pin of P811 2 After turning VR951 voltage o...

Page 9: ...ight like floodlight around is blocked Illumination is less than 10ux 2 Measure and adjust after sticking the Color Analyzer CA 100 CA210 to the side of the module 3 Aging time After aging start keep the Power on no suspension of power supply and heat run over 5 minutes 4 4 Serial number download Model name D L and Check Tool Option 1 Press Power on button of a service R C Baud rate 115200 bps 2 C...

Page 10: ...Stick If your downloaded program version in USB Stick is Low it didn t work But your downloaded version is High USB data is automatically detecting 3 Show the message Copying files from memory 4 Updating is staring 5 Updating Completed The TV will restart automatically After turn on TV Please press IN STOP button on ADJ Remote control IF you don t have ADJ R C enter Factory Reset in OPTION MENU 6 ...

Page 12: ...70 591 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 permissi...

Page 13: ...ERROR_DET 10K R104 10K R101 10K R109 10K R110 10MHz X100 120K R176 1 0 1uF 50V C1 4 7K R82 FLASH_WP 10K R21 22 R18 22 R19 0 R20 READY 10K R165 LGE3556C C0 VERSION IC100 GPIO_00 N26 GPIO_01 L26 GPIO_02 N25 GPIO_03 L25 GPIO_04 K27 GPIO_05 K28 GPIO_06 K24 GPIO_07 K26 GPIO_08 K25 GPIO_09 AA27 GPIO_10 AA28 GPIO_11 AA26 GPIO_12 L1 GPIO_13 L3 GPIO_14 L2 GPIO_15 Y25 GPIO_16 Y26 GPIO_17 M27 GPIO_18 AA25 GP...

Page 14: ...MDL_SDA 002 G4 22 READY R270 3 3V_MULTI 0 015uF C213 0 15uF C222 0 015uF C214 0 015uF C206 0 015uF C220 0 015uF C207 0 015uF C208 0 015uF C209 0 015uF C210 0 015uF C211 0 015uF C212 0 0 4 7 u F C232 0 0 4 7 u F C235 0 0 4 7 u F C240 0 0 4 7 u F C242 0 0 4 7 u F C265 0 0 4 7 u F C266 0 0 4 7 u F C268 0 0 4 7 u F C269 0 0 4 7 u F C271 0 0 4 7 u F C272 0 4 7 u F C230 0 4 7 u F C238 0 4 7 u F C244 0 4...

Page 15: ...INCM_CVBS4 AG13 SD_SIF1 AF17 SD_INCM_SIF1 AG17 SD_FB AD15 SD_FS AE16 SD_FS2 AE17 PLL_VAFE_AVDD1P2 AB16 PLL_VAFE_AVSS AA15 PLL_VAFE_TESTOUT AC16 RGB_HSYNC AG3 RGB_VSYNC AF4 I2S_CLK_IN AE18 I2S_CLK_OUT AF18 I2S_DATA_IN AD17 I2S_DATA_OUT AH19 I2S_LR_IN AD18 I2S_LR_OUT AG18 AUD_LEFT0_N AG26 AUD_LEFT0_P AH26 AUD_AVDD2P5_0 AF23 AUD_AVSS_0_1 AA20 AUD_AVSS_0_2 AB21 AUD_AVSS_0_3 AC22 AUD_AVSS_0_4 AC23 AUD_...

Page 16: ...SS_1 A3 VSS_2 E3 VSS_3 J1 VSS_4 K9 VREF E2 VDDL E1 VSSDL E7 LGE3556C C0 VERSION IC100 DDR_BVDD0 A6 DDR_BVDD1 A24 DDR_BVSS0 B7 DDR_BVSS1 B24 DDR_PLL_TEST F20 DDR_PLL_LDO B23 DDR01_CKE B17 DDR_COMP C22 DDR01_ODT E16 DDR_EXT_CLK C23 DDR0_CLK B12 DDR0_CLKB C12 DDR1_CLK A13 DDR1_CLKB A12 DDR01_A00 B15 DDR01_A01 E14 DDR01_A02 A15 DDR01_A03 D15 DDR0_A04 E13 DDR0_A05 E12 DDR0_A06 F13 DDR01_A07 C14 DDR01_A...

Page 17: ...6N 3 6uH L502 120 ohm MLB 201209 0120P N2 L518 100uF 16V C565 0 1uF 16V C561 A3 3V MLB 201209 0120P N2 0LCML00003B L509 A2 5V AZ1085S 3 3TR E1 0IPMG78341A IC505 1 ADJ GND 2 OUTPUT 3 INPUT 910 1 R531 6 6 5 1 R532 1K 1 R533 AZ1085S ADJTR E1 0IPMG78346A IC503 1 ADJ GND 2 OUTPUT 3 INPUT MLB 201209 0120P N2 0LCML00003B L516 MLB 201209 0120P N2 0LCML00003B L504 SMAW200 H18S1 P500 14 9 4 18 13 8 3 17 12 ...

Page 18: ...2 E B C 3 3V_TU GND 0 1uF 16V C618 10 R613 1 2K R623 READY 0 1uF 16V C606 1 2V_TU AZ1117H ADJTRE1 EH11A IC600 2 OUTPUT 3 INPUT 1 ADJ GND CIC21J501NE L602 22uF 10V C620 10uF 10V C621 0 1uF 16V C611 0 READY R605 0 R607 0 1uF 16V C617 0 1uF 16V C3062 READY 3 3V_TU 3 3V_MULTI TDTJ S001D TU600 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 9 SIF 8 NC IF_TP 3 B ...

Page 19: ...IAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 2K READY R706 0 R700 READY 0 R705 1 16W 0 5 READY R710 22K R714 22K R703 33 R708 33 R704 33 R707 0 01uF C704 22pF READY R742 0 1uF C703 1000pF 50V READY C700 22pF READY R739 22pF READY R741 22pF READY R740 1000pF READY C702 33pF READY C707 33pF READY C706 0 01uF C711 0 1uF C715 0 0 4 7 ...

Page 20: ...PD 49 SDA SEL1 50 SCL SEL0 51 XTAL_IN 52 XTAL_OUT 53 INT HP_CTRL 54 CDEC_STBY 55 VDDS 3V3 56 VSS_7 57 CEC 58 RXC_HPD 59 RXC_5V 60 RXC_DDCC_DAT 61 RXC_DDC_CLK 62 RXC_C 63 RXC_C 64 VDDH 3V3 _5 65 RXC_D0 66 RXC_D0 67 VSS_8 68 RXC_D1 69 RXC_D1 70 VDDH 3V3 _6 71 RXC_D2 72 RXC_D2 73 VSS_9 74 R12K 75 VDDH 1V8 _2 76 RXD_HPD 77 RXD_5V 78 RXD_DDC_DAT 79 RXD_DDC_CLK 80 RXD_DC 81 RXD_DC 82 VDDH 3V3 _7 83 RXD_...

Page 21: ... 5 6 7 8 9 10 4 7K R937 1K R917 0 1uF 16V C914 READY 10K R911 270pF 50V C901 READY 10 R902 220pF 50V C906 READY 220pF 50V C908 READY 10 R903 220pF 50V C905 READY 4 7pF C915 READY 4 7pF C913 READY 4 7pF C912 READY MLB 201209 0120P N2 L900 0 R915 0 R916 100 R922 18pF 50V C919 18pF 50V C918 22 R946 22 R947 10K R941 10K R938 4 7K R939 0 R929 0 R930 PEJ027 01 JK900 6B T_TERMINAL2 7B B_TERMINAL2 5 T_SPR...

Page 22: ...1004 0 R1005 3 3V_MULTI 5 1V D1002 30V D1000 0 R1010 5 1V D1032 1uF 25V C1006 5 1V D1031 10 A5 COMP2_L_IN 5 1V D1030 5 1V D1029 3 3V_MULTI 5 1V D1028 270nH L1000 100pF C1005 READY 0 R1002 27pF 50V C1026 3 3V_MULTI 9 G4 COMP2_DET 0 R1011 5 1V D1027 10 A5 COMP2_R_IN 5 1V D1026 27pF 50V C1003 5 1V D1025 27pF 50V C1034 5 1V D1024 5 1V D1023 REAR_AV_IN 11 C4 270nH L1005 1K R1016 11 D3 COMP2_Pr 5 1V D10...

Page 23: ...BT_DM RTR030P02 Q1103 BLUE_TOOTH S D G BT_ON OFF 4 7K R1114 BLUE_TOOTH 0 READY R1103 2SC3052 Q1101 BLUE_TOOTHE B C 47K R1107 47K R1105 BLUE_TOOTH 0 R1145 0 R1143 USB1_CTL_HUB 0 R1146 READY USB1_OCD_HUB 0 R1122 READY 0 R1144 READY USB2_CTL_HUB USB2_OCD_HUB 0 READY R1123 USB1_OCD_HUB USB1_CTL_HUB USB2_OCD_HUB USB2_CTL_HUB RST_HUB 004 E17 001 Y15 USB DOWN STREAM KJA UB 4 0004 EAG41945401 P1101 1 2 3 ...

Page 24: ...7V_WIRELESS WIRELESS_DL_RX 2 2K WIRELESSMODEL R1225 IR_PASS 47K R1230 WIRELESS MODEL 2 2uF WIRELESSMODEL C1212 1K WIRELESS MODEL R1210 3 3V_ST IR_PASS 4 7K WIRELESS MODEL R1213 47K R1226 WIRELESS MODEL 1 4W 3216 0 WIRELESS MODEL R1229 0 01uF 50V WIRELESS MODEL C1213 2SC3052 Q1203 WIRELESS MODEL E B C WIRELESS_SCL 3 3V_MULTI BLM18PG121SN1D WIRELESS MODEL L1201 3 3V_VA KJA PH 3 0168 P1201 WIRELESS M...

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Page 26: ... No sound 2 3 Mal discharge Noise dark picture 3 4 Picture broken Freezing 4 5 Vertical bar Horizontal Bar 5 6 B Power Problem No Power Not turn on 6 7 Turn off Instant under watching 7 8 C Sound Problem No sound Sound distortion 8 9 E General function Problem Remote control Local switch checking 9 First of all Check whether there is SVC Bulletin in GCSC System for these model ...

Page 27: ...oltage on Power Board Control Board Check B 5V Y 1 Check Control Board LED on Crystal X101 1 8V 3V 5V FET Rom update 2 Replace Control B D SVC R C Pattern Check Sound Sound OK Y Close Y Move No Picture No sound Section Check LVDS Cable Replace Main B D Normal N Y N Move Power problem Section Normal Normal Move Power problem Section N First of all Check whether all of cable between board was insert...

Page 28: ...lose Y Check LVDS Cable Replace Main B D Normal Y N Replace Main B D Normal Check Input signal RF Cable connection SCART Cable connection HDMI Cable connection Component Cable Normal Y N Repair Replace IR B D Check Vs Va Normal Check voltage VY VSC VZB Y N Move Power problem Section Normal Y Check B Voltage on Power Board Control Board Check B 5V Normal 1 Check Control Board LED on Crystal X101 1 ...

Page 29: ...re problem Type Check voltage VY VSC Y Sus B D Normal Picture Replace Y Sus B D Normal Picture Y N 1 Check Control B D 2 Replace Board Normal Picture Check Y Drive B D Replace B D Y Close N Dark Picture Normal Picture Y Replace Module N Close 1 Check Z Sus Board 2 Replace Board Check Picture mode setting Picture Noise Normal Picture Y N Close Y N Check RF Cable Connection Check Tuner Replace Norma...

Page 30: ...ments have problem or not By connecting RF Cable at other equipment DVD Player Set Top Box Different maker TV etc SVC Bulletin Replace Main B D Check Tuner soldering Normal Picture Y N Y Close Normal Picture Y Close Menu Setup Booster By using Digital signal level meter By using Diagnostics menu on OSD Menu Press Red Key on R C Enter Signal Test Signal strength Normal over 50 Signal Quality Normal...

Page 31: ...lace Module If Main B D doesn t cause N Y Close 1 Connector re connection 2 Eliminate foreign material on Connector N CTRL B D Control board Check connection of Connector COF TCP on CTRL B D X B D Check connection of Connector FPC on Y Drive B D 1 Connector re connection 2 Eliminate foreign material on FPC 1 Check Y Drive B D 2 Replace Board Normal Picture N Y Close Replace Module 1 Check CTRL B D...

Page 32: ...ol Normal Close Y N Y Repair Replace IR B D N Check Power cord was inserted properly Check Repair Mechanical Power switch on Local control of TV N Normal Close Y Check ST BY 5V on Power Board Normal Voltage N Normal Signal Y Check Power B D Replace Power B D Check AC DET Signal on Power B D Check RL_ON Signal on Power B D N Normal Signal Y Check Main B D Replace Main B D Check the other pin s Outp...

Page 33: ... Y Sus N Power LED Green Y Check Power B D Replace Power B D 1 Check Y Sus Z Sus Board especially Short or Open 2 Replace defective B D To check Power B D Protection Check Power Off History RCU Off Turn off Under watching Off Timer Set Off timer Function off KEY Off 2HOUR Off NO Signal Off Y N Don t appear Power Off History Move No Power problem Section This is not problem Normal operation 2010 2 ...

Page 34: ...c N Normal Sound N Y Close Y 2 Sound distortion sound drop Check Input signal Cable connection Cable open RF external HDMI SCART Normal Sound Y Close Check AVL off on Clear voiceⅡ off on Y Normal Sound N Close N Problem in all input Problem in only DTV Case 1 Problem in external input Case 2 SCART HDMI Check whether Problem happen in same output of other equipments or not By connecting same output...

Page 35: ...rating When turn off light in room Check Replace Battery of R C Check Repair Cable connection Connector solder Normal operating Check B 5V On Main B D Normal Voltage Close N N Check 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem Check IR Output signal Normal Signal N Y Repair Replace IR B D N Replace Main B D Y Y N Check R C Operation Normal operating Y Check Re...

Page 36: ... Symptom L Input Block Page Remark 1 Power Problem Power up Boot fail 1 2 Video Probelm Digital TV 2 3 Analog TV 3 4 Component 4 5 RGB D SUB 5 6 AV Scart CVBS 6 7 HDMI 7 8 Audio Problem All Input 8 9 Digital TV HDMI 9 10 Analog TV 10 11 Component AV RGB 11 12 Optical Audio 12 13 No USB All Input 13 15 Bluetooth Problem Bluetooth Problem 15 ...

Page 37: ...er connector OK Replace Power board Y N Y Check L507 Voltage Level 1 2V Replace L507 Y N Check IC505 pin2 Voltage Level 3 3V Replace IC505 N Check IC503 pin2 Output Voltage Level 2 5V Replace IC503 N Y Making 전자 6 2 Revision 1 15 PDP TV Symptom Power Up Boot Fail 2010 2 22 ...

Page 38: ...L601 1 2V L600 Check Voltage 5V IC503 Output 3V IC505 Output 2 5V IC503 Output 1 2V IC601 Output Y N Check Video color Check Monitor Out Video Scart out Check other input OSD Check IIC Line Check SCL SDA1 Line N Maybe Tuner has problems Replace Tuner N Y Check TP Clock Data Sync Replace Tuner N Y N Y Check Module N Y Change BCM IC100 ⓐ Y Go to ⓐ 2010 2 22 ...

Page 39: ...n the input signal Making 전자 6 2 Revision PDP TV Input Block Analog TV Video Problem Check RF Cable Check CVBS signal TU601 11 Pin Replace Tuner TU601 Y N Check IC503 Output Voltage L502 Y N Y Replace BCM IC100 Check 5V voltage on TU601 Pin3 3 15 2010 2 22 ...

Page 40: ...ut Block Component Video Problem Check input signal format Is it supported Check signal on C338 C339 C340 Y Check the damage of JK1000 And Replace Connector N Y Replace BCM IC100 Y Check Component Cable Measured signals depend on the input signal 4 15 2010 2 22 ...

Page 41: ...ignal format Is it supported Check signal Hsync Vsync R953 R959 Check IC903 Input Output Check signal C332 C333 C334 Y N Check P900 Replace connector P900 Y N Y Replace C332 C333 C334 N Replace Mstar IC100 Y Check RGB Cable conductors for damage Y Measured signals depend on the input signal 5 15 2010 2 22 ...

Page 42: ... Is it supported Check signal line JK1002 Video R359 JK1001 Video C432 C433 C434 RGB C326 CVBS Replace Resistor or Cap Check AV port of JK1002 Side JK1001 Rear Replace connector N Replace BCM IC100 Check AV Cable for damage or open conductors Measured signals depend on the input signal Y Y Y Y N 6 15 2010 2 22 ...

Page 43: ...heck input signal format Is it supported Check EDID D L Re Download EDID Check HDMI Cable for damage or open conductors Check R867 R874 HDMI Switch Output Replace Connector Replace IC802 Replace BCM IC100 Y Y Y Y Y N N Check JK800 J801 J802 for proper connection or damage N 7 15 2010 2 22 ...

Page 44: ...aker Y N Check Connector P1000 Replace P1000 Y N Check SCL SDA R707 R708 Replace R707 708 N Y Check IC700 Status PDN 19 Reset 25 is High Check Reset R704 PDN R702 They must be High 3 3V Y N Check IC700 Power 17V L704 3 3V L702 L703 Check 17V P500 1 2 3 3V IC505 2 Y N Y Check BCM I2S Output R114 21 22 23 on IC700 Replace BCM IC100 N 8 15 Replace AMP IC700 Y 2010 2 22 ...

Page 45: ...cedure All source audio trouble shooting Check EDID Download Re download EDID data Digital TV Check video output Follow procedure All source audio trouble shooting Follow procedure digital TV video trouble shooting Y N HDMI Y N 9 15 Check video output Follow procedure HDMI video trouble shooting Y N 2010 2 22 ...

Page 46: ...log TV Audio Problem Check video output Follow procedure All source audio trouble shooting Y Follow procedure analog TV video trouble shooting N Replace BCM IC IC100 Check 2 on TU601 for 5V Check IC504 output Voltage N Y Check SIF signal C602 Replace TU601 N Y Check SIF signal C301 Check SIF line N Y Y 10 15 2010 2 22 ...

Page 47: ...05 R1006 JK1001 SCART R1024 R1025 JK702 RGB R931 R933 JK900 Side AV R1039 R1040 Replace the Resistor Check IC100 signal JK1000 Component R209 R210 JK1001 SCART R212 R213 JK702 RGB R216 R217 JK900 Side AV R214 R215 Replace the Resistor Follow procedure All source audio trouble shooting Making 전자 6 2 Revision PDP TV Input Block Component AV RGB Audio Problem Y Y Y N N N 11 15 2010 2 22 ...

Page 48: ...eform sample Defend on the input signal Making 전자 6 2 Revision PDP TV Input Block Optical Audio Problem N Check Signal JK1000 3 Check SPDIF signal R1051 Replace BCM IC100 Check 5V 2 on JK1003 Y 12 15 N Check Q501 Output L516 Y 2010 2 22 ...

Page 49: ...ISP_EN R253 Check R27 and MICOM Check LVDS Cable damage or open connectors Check LVDS DATA Replace Cable Check Vs Va 5V 17V on Power Board Replace Power Board Check LED blanking When press a key on R C Follow Power Up Boot Fail Y Y Y Y N N N N 13 15 Change BCM IC100 N Check Module condition Y 2010 2 22 ...

Page 50: ...mage or open conductors Check C1116 C1117 voltage 5V Y N Check IC1102 1103 8 status is high Check P1101 P1102 Replace Connector Y N Check R1133 R1134 R1137 R1138 Y Replace Capacitor N N Replace the Resistor 14 15 Check USB Module condition Y Y Y Check R200 R201 N Replace IC1100 Y Change BCM IC100 2010 2 22 ...

Page 51: ...king 전자 6 2 Revision PDP TV Input Block Bluetooth Problem Check B T Version on INSTART MENU Check R204 R205 N N Check P1100 Check 10 P1100 is 3 3V Replace Connector Y N Change BCM IC100 13 15 Replace Bluetooth Module Y N 2010 2 22 ...

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