LG 60PM6700 UB Service Manual and Repair Guide

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 : MFL67461803 (1205-REV01) PLASMA TV SERVICE MANUAL CHASSIS : PU22A MODEL : 60PM6700 60PM6700-UB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

- 2 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SPECIFICATION ....................................................................................... 4 ADJUSTMENT INSTRUCTION ................................................................ 5 BLOCK DIAGRAM.................................................................................. 12 EXPLODED VIEW .................................................................................. 13 SCHEMATIC CIRCUIT DIAGRAM ..............................................................

- 3 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 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 Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. General Guidance An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 10 mm away from PCB. Keep wires away from high voltage or high temperature parts. Before returning the receiver to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage 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 the exposed metallic part has a return path to the chassis, the measured resistance should be between 1 MΩ and 5.2 MΩ. 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. Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to 0.5 mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer. Leakage Current Hot Check circuit IMPORTANT SAFETY NOTICE To Instrument's exposed METALLIC PARTS Good Earth Ground such as WATER PIPE, CONDUIT etc. AC Volt-meter SAFETY PRECAUTIONS

- 4 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This spec sheet is applied all of the PDP TV with PU22A chassis. 2. Requirement for Test Each part is tested as below without special appointment. (1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C (2) Relative Humidity: 65 % ± 10 % (3) Power Voltage : Standard input voltage (AC 100-240 V~, 50/60 Hz) * Standard Voltage of each products is marked by 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. Model General Specification No Item Specification Remark 1 Receiving System 1) ATSC / NTSC-M 2 Available Channel 1) VHF : 02~13 2) UHF : 14~69 3) DTV : 02-69 4) CATV : 01~135 5) CADTV : 01~135 3 Input Voltage 1) AC 100 ~ 240V 50/60Hz N.America Mark : 110V, 60Hz 4 Market NORTH AMERICA 5 Screen Size 42 inch HD(1024 × 768) 42PM4700-UA/UB 50 inch HD(1024 × 768) 50PM4700-UA/UB 50 inch FHD(1920 × 1080) 50PM6700-UB/UD, 50PM6900-UE, 50PM9700-UA 60 inch FHD(1920 × 1080) 60PM6700-UB/UD, 60PM6900-UE, 60PM9700-UA 6 Aspect Ratio 16:9 7 Tuning System FS 8 Module PDP42T4#### (1024 × 768) 42PM4700-UA/UB PDP50T4#### (1024 × 768) 50PM4700-UA/UB PDP50R4#### (1920 × 1080) 50PM6700-UB/UD, 50PM6900-UE, 50PM9700-UA PDP60R4#### (1920 × 1080) 60PM6700-UB/UD, 60PM6900-UE, 60PM9700-UA 9 Operating Environment 1) Temp : 0 ~ 40 deg 2) Humidity : ~ 80 % 10 Storage Environment 1) Temp : -20 ~ 60 deg 2) Humidity : ~ 85 %

- 5 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ADJUSTMENT INSTRUCTION 1. Application Range This spec. sheet applies to PU22A chassis applied PDP TV all models manufactured in TV factory. 2. Specification (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument. (2) Adjustment must be done in the correct order. (3) The adjustment must be performed in the circumstance of 25 °C ± 5 °C of temperature and 65±10% of relative humidity if there is no specific designation. (4) The input voltage of the receiver must keep 100~240V, 50/60Hz. (5) The receiver must be operated for about 5 minutes prior to the adjustment when module is in the circumstance of over 15 °C - In case of keeping module is in the circumstance of 0°C, it should be placed in the circumstance of above 15°C for 2 hours - In case of keeping module is in the circumstance of below -20 °C, it should be placed in the circumstance of above 15 °C for 3 hours,. * Caution : When still image is displayed for a period of 20 minutes or longer (especially where W/B scale is strong. Digital pattern 13ch and/or Cross hatch pattern 09ch), there can some afterimage in the black level area. 3. Adjustment items 3.1. PCB Assembly adjustment * Caution : Using ‘power on’ button of the control R/C power on TV (1) MAC Address, ESN and Wide-vine Key Download (2) DFT Process 3.2. Set Assembly Adjustment ■ Power PCB Assembly Voltage adjustment (Va,Vs voltage adjustment) ■ Adjustment of White Balance ■ Serial number download & Model name D/L ■ Checking the Eye-Q Operation ■ LAN port inspection (Ping test) ■ Magic Motion Remote Controller test ■ 3D function test ■ GND and ESD test 3.3. Additional ■ Selection Factory output option ■ S/W Download Guide 4. Board-level adjustment 4.1. MAC Address and ESN and Wide-vine Key Download * Connect TV SET and PC which download keys Writing program by RS232C-Cable (1) Start Program and Click ‘start’ Button to connect TV and PC. (2) When download succeed, you can see “OK” on the screen. * Each Chassis has it’s own MAC Address/ESN/Wide-vine key. Please be careful of download. - RS-232C Port connection Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port 4.2. DFT Process * Depend on situation, Step can be changed. * Condition spec Mode Volume Power Off RF 0 DC On

- 6 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes * ADC Adjustment(Manual) -> GP4 (PU22A/PB22A/PK22A) Chassis don’t need ADC adjust process.The ADC value have been OTP process. but, if you need to adjust ADC manually follow this method. ■ Using instruments - Adjustment remocon, 801GF(802B, 802F, 802R) or MSPG925FA pattern generator (It can output 480i/1080i horizontal 100% color bar pattern signal, and its output level must setting 0.7V±0.1V p-p correctly) (1) Adjustment method 480i Comp1, Adjust 1080p Comp1/ RGB (Factory adjustment) (2) ADC 480i Component1 adjustment (3) Check connection of Component1 (4) MSPG-925FA -> Model: 209, Pattern 65 (5) Set Component 480i mode and 100% Horizontal Color Bar Pattern(HozTV31Bar), then set TV set to Component1 mode and its screen to “NORMAL” (6) Check connection both of Component1 and RGB (7) MSPG-925FA -> Model: 225, Pattern 65 (8) Set Component 1080p mode and 100% Horizontal Color Bar Pattern(HozTV31Bar), then set TV set to Component1 mode and its screen to “NORMAL” (9) After get each the signal, enter the “EZ ADJUST” status with pres ADJUST key of Service remocon. After then select “8. ADC Calibration” with navigator button and press “Enter”. (10) After then select “ADC Type” and set value “OTP -> External” with navigator button. (11) After then press “Start” button. (12) You can see “ADC Component1 Success” (13) Component1 1080p, RGB 1080p Adjust is same method. (14) Component 1080p Adjustment in Component1 input mode. (15) RGB 1080p adjustment in RGB input mode. (16) If you success RGB 1080p Adjust. You can see “ADC RGB-DTV Success 4.3. EDID(The Extended Display Identification Data)/ DDC(Display Data Channel) - It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input. It is a realization of “Plug and Play”. -> GP4 (PU22A/PB22A/PK22A) Chassis don’t need EDID Download process. Whenever TV power on, the EDID data was written on inner memory. 4.3.1. EDID DATA(PCM)_PU22A ■ HDMI [C/S: 98 2F] : For FHD Models EDID Block 0, Bytes 0-127 [00H-7FH] Block Type: EDID 1.4 EDID Block 1, Bytes 128-255 [80H-FFH] Block Type: CEA EDID Timing Extension Version 3 ■ RGB [C/S: B1] : For FHD Models EDID Block 0, Bytes 0-127 [00H-7FH] Block Type: EDID 1.3 < Adjustment pattern : 480i / 1080p 60Hz Pattern > Vender ID C/S1 C/S2 HDMI1 10 98 2F HDMI2 20 98 1F HDMI3 30 98 0F HDMI4 40 98 FF

- 7 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.3.2. EDID DATA(AC-3)_PU22A ■ HDMI [C/S: 98 BD] : For FHD Models EDID Block 0, Bytes 0-127 [00H-7FH] Block Type: EDID 1.3 EDID Block 1, Bytes 128-255 [80H-FFH] Block Type: CEA EDID Timing Extension Version 3 ■ RGB [C/S: B1] : For FHD Models EDID Block 0, Bytes 0-127 [00H-7FH] Block Type: EDID 1.3 5. Final Assembly adj. * Caution : Each PCB assembly must be checked by check JIG set. (Because power PCB Assembly damages to PDP Module, especially be careful) 5.1. POWER Supply Unit PCB Ass'y Va/Vs Voltage adjustment. * Caution : Both Vs and Va voltage adjustment are necessary. 5.1.1. Model name : PU22A 5.1.2. Va/Vs Adjustment Procedure (1) Connect positive(+) terminal of DMM to Vs/Va pin, connect negative(-) terminal to GND. (2) Turning ‘Vs/Va Adjust’ and adjust Vs/Va voltages to a value which is written on a right/top label of a module. (deviation ; ±0.5V) * Caution : Each Power Supply Unit PCB assembly must be checked by check JIG set. (Because power PCB Ass’y damages to PDP Module, especially be careful) * Caution : Set up "RF mode(noise)" before a voltage adjust- ment. 5.2. White Balance adj. 5.2.1. Overview ■ W/B adj. : Objective & How-it-works - Objective: To reduce each Panel’s W/B deviation - How-it-works: When R/G/B gain in the OSD is at 192, it means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value. 5.2.2. Equipment (1) Color Analyzer : CA-210 (NCG: CH 9 / WCG: CH12 /PDP Module:CH10) (2) Adj. Computer (During auto adj., RS-232C protocol is needed) (3) Adj. R/C (4) Video Signal Generator MSPG-925F 720p/216Gray(Model:217, Pattern:78) → Only when internal pattern is not available ■ Color Analyzer Matrix should be calibrated using CS-1000 Vender ID C/S1 C/S2 HDMI1 10 98 BD HDMI2 20 98 AD HDMI3 30 98 9D HDMI4 40 98 8D

- 8 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5.2.3. Equipment connection map 5.2.4. Adj. Command (Protocol) ■ Protocol <Command Format> - LEN: Number of Data Byte to be send - CMD: Command - VAL: FOS Data - CS: Checksum of sent Data - A: Acknowledge Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX] ■ RS-232C Command used during auto-adj. Ex) wb 00 00 -> Begin white balance auto-adj. wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. complete *(wb 00 20(Start), wb 00 2f(End)) -> Off-set adj. wb 00 ff -> End white balance auto-adj. 5.2.5. Adj. method 5.2.5.1. Auto adj. method (1) Set TV in adj. mode using POWER On Key (2) Zero calibrate probe then place it on the center of the Display (3) Connect Cable(RS-232C) (4) Select mode in adj. Program and begin adj. (5) When adj. is complete (OK Sign), check adj. status per mode (Warm, Medium, Cool) (6) Remove probe and RS-232C cable to complete adj. ■ Adj. must begin w/ command “wb 00 00”, and end w/“wb 00 ff”and adj. offset if needed. ■ Offset adjust limit value. Offset Min = 34 (Decimal) Offset Max = 94 (Decimal) 5.2.5.2. Auto adj. Sequence - White Balance Adjust Sequence Start -> Cool_Gain -> Medium_Gain -> Warm_Gain -> End 5.2.5.3. Manual adj. method Dynamic contrast : off Dynamic color : off OPC : Off Energy saving mode : Off ● Test Equipment: CA-210 - Using PDP color temperature, Color Analyzer (CA-210) must use CH 10, which Matrix compensated (White, Red, Green, Blue compensation) with CS-2100. See the Coordination bellowed one. ● Manual adjustment sequence is like bellowed one. - Turn to “Ez-Adjust” mode with press ADJ button of service remocon. - Select “10.Test Pattern” with CH+/- button and press enter. Then set will go on Heat-run mode. Over 30 minutes set let on Heat-run mode. - Let CA-210 to zero calibration and must has gap more 10cm from center of PDP module when adjustment. - Press “ADJ” button of service remocon and select “7.White-Balance” in “Ez-Adjust” then press “►” button of navigation key. (When press “►” button then set will go to full white mode) - Adjust at three mode (Cool, Medium, Warm) - If “cool” mode Let B-Gain to 192 and R, G, B-Cut to 64 and then control R, G gain adjustment High Light adjustment. - If “Medium” and “Warm” mode Let R-Gain to 192 and R, G, B-Cut to 64 and then control G, B gain adjustment High Light adjustment. - All of the three mode Let R-Gain to 192 and R, G, B-Cut to 64 and then control G, B gain adjustment High Light adjustment. - With volume button (+/-) you can adjust. - After all adjustment finished, with Enter (■ key) turn to Ez-Adjust mode. Then with ADJ button, exit from adjustment mode * Attachment: White Balance adjustment coordination and color temperature. RS-232C COMMAND [CMD ID DATA] Meaning wb 00 00 Begin White Balance adj. wb 00 ff End White Balance adj. (internal pattern disappears) 9. White Balance

- 9 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ● Using CS-1000 Equipment. - COOL : T=11000K, ∆uv=0.000, x=0.276 y=0.283 - MEDIUM : T=9300K, ∆uv=0.000, x=0.285 y=0.293 - WARM : T=6500K, ∆uv=0.000, x=0.313 y=0.329 ● When tester will measure on Cool condition, adjust W30 on TV display menu. ● When tester will measure on medium condition, adjust 0 on TV display menu. ● When tester will measure on warm condition, adjust W30 on TV display menu. ● Using CA-210 Equipment. (10 CH) - Contrast value: 216 Gray - Brightness spec. 5.2.6 Reference (White Balance adj. coordinate and color temperature) ■ Standard color coordinate and temperature using CS-1000 ■ Luminance: Full white 216 Gray ■ Standard color coordinate and temperature using CA-210(CH 10) - Gain color coordinate ■ Pattern : Full white 216 Gray 5.3. Serial number download & Model name D/L. (1) Press "Power on" button of a service R/C.(Baud rate : 115200 bps) (2) Connect RS232-C Signal Cable and start ‘Option Check Program Ver3.8’ (3) Scan serial Number and press ‘F5’ button. (4) Check ‘OK’ on program 1) program. (5) Press ‘In start’ button on SVC R/C, check Serial Number and Model Name. 5.4. Checking the EYE-Q Operation. (1) Press 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. 5.4.1. LAN PORT inspection (PING TEST) * In this case Network setting is on Manual Setting. (1) Play the LAN Port Test Program. (2) connect each other LAN Port Jack. (3) Play Test (F9) button and confirm OK Message. (4) remove LAN CABLE Color temperature Test Equipment Color Coordination x y COOL CA-210 0.276 ± 0.002 0.283 ± 0.002 MEDIUM CA-210 0.285 ± 0.002 0.293 ± 0.002 WARM CA-210 0.313 ± 0.002 0.329 ± 0.002 Item White average brightness Brightness uniformity Min 49 -20 Typ 60 Max +20 Unit cd/m² % Remark - 100% Window White Pattern - 100IRE(255Gray) - Picture: Vivid(Medium) - 85IRE(216Gray) 100% Window White Pattern - Picture: Vivid(Medium) Color temperature Color Coordination Temp ∆uv x y COOL 0.276 0.283 11000K 0.0000 MEDIUM 0.285 0.293 9300K 0.0000 WARM 0.313 0.329 6500K 0.0000 Color temperature Color Coordination Temp ∆uv x y COOL 0.276 ± 0.002 0.283 ± 0.002 11000K 0.0000 MEDIUM 0.285 ± 0.002 0.293± 0.002 9300K 0.0000 WARM 0.313 ± 0.002 0.329 ± 0.002 6500K 0.0000 Green Eye-Check(Factory Mode) Sensor Data 9 Power saving mode 1 OK

- 10 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5.5. Magic Motion Remote Controller test - Required Equipment : RF Remote Controller for test * You must confirm the battery power of Remote Controller before test (Recommend that change the battery per every lot) (1) Within 50 cm of the TV set, select the wheel ‘Enter’ button of the controller. (2) You can check the controller LED on and the cursor on the TV Screen. (3) You must remove the pairing with the TV Set by select ‘Mute Key’ on the controller. (4) Then you can check the cursor on the TV screen is disappeared and the controller LED off. 5.6. Wi-Fi Test(Except for PM47*/PM67*) Step 1) Turn on TV Step 2) Select ‘Network Connection’ option in Network Menu. Step 3) Select ‘Start Connection’ Button in ‘Network Connection’. Step 4) If the system finds any AP like blow PIC, it is working well. 5.7. 3D Function Test (Pattern Generator MSPG-3233, HDMI mode NO. 371 , pattern No. 81) (1) Please input 3D test pattern like below (2) Enter 3D mode , then select side by side (If you don’t wear a 3D Glasses, you will see the picture like below) <  < <  <