Panasonic LIFI PT-50LCZ7 Service Manual Download Page 34

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HOW TO REPLACE THE LAMP UNIT

Rear Cover

401

Latch tabs

Fig. D1-1

a. Removal of Rear Cover

1. Remove the Rear Cover by removing the 12 screws then pinching the 3 latch tabs.

Note:
Lamp debris may be noticed in the lamp compartment area after the rear cover is removed.
If present, follow the notes in the disassembly procedure.
if not, disregard these notes.

The Lamp Unit becomes very hot during
operation. When replacing the Lamp Unit,
wait until it has cooled off (1 hour or more).

LAMP CAUTION:

PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7

Summary of Contents for LIFI PT-50LCZ7

Page 1: ...o Ltd All rights reserved Unauthorized copying and distribution is a violation of law PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 PT 50LCZ70 K PT 56LCZ70 K PT 61LCZ70 K Vol 1 Multi Media Display ORDER NO MKE0706852CE B2 ...

Page 2: ...rams 65 12 1 SCHEMATIC DIAGRAM CIRCUIT BOARD LAYOUT NOTES 65 12 2 INTERCONNECTION SCHEMATIC DIAGRAM 66 12 3 POWER SCHEMATIC DIAGRAMS 67 12 4 SD HDMI SCHEMATIC DIAGRAM 68 12 5 REAR JACK SCHEMATIC DIAGRAM 69 12 6 FRONT JACK OPERATION POWER SWITCH TUNER SCHEMATIC DIAGRAM 74 13 Printed Circuit Board 75 13 1 POWER P C B 75 13 2 SD HDMI P C B 76 13 3 REAR JACK P C B 77 13 4 FRONT JACK OPERATION P C B TU...

Page 3: ...meter between the jumpered AC plug and each exposed metallic cabinet part on the receiver such as screwheads connectors etc When the exposed metallic part has a return path to the chassis the reading should be between 1 MΩ and 12 MΩ When the exposed metal does not have a return path to the chassis the reading must be infinity 1 3 Leakage Current Hot Check 1 Plug the AC cord directly into the AC ou...

Page 4: ...rounded tip soldering iron to solder or unsolder ES devices 4 Use only an antistatic solder removal device Some solder removal devices not classified as antistatic ESD protected can generate electrical charge sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its p...

Page 5: ... and service this model Please place orders using the parts list and not the drawing reference numbers If the circuit is changed or modified this information will be followed by supplement service manual to be filed with original service manual 3 2 About Lead Free Solder PbF 5 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 ...

Page 6: ...4 Specifications 6 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 ...

Page 7: ...Abnormal voltage DTV 9V line Abnormal voltage SUB 5V line Abnormal voltage MAIN 3 3V line Communication error between Peaks IC8001 and TV Microcontroller IC6004 Communication error between Peaks IC8001 and TV Microcontroller IC6004 12 Lamp does not light up 9 Lamp failure 10 Abnormal Lamp temperature 11 Lamp communication error 5 IC4501 Audio Amp failure 8 9 10 11 12 13 14 Lamp Fan stops 15 Fan Ca...

Page 8: ...Power Switch Operation P C B SD HDMI P C B Front View Rear View LAMP LED POWER LED Front Door Rear Cover Main P C B Drive P C B Tuner P C B Rear Jack P C B Power P C B RF AMP Power Supply P C B Lamp Unit Lamp Fan Top Duct Unit Front Fan Rear Fan Support Shield PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 8 ...

Page 9: ...ock Demodulator TV Microcontroller GenX4 EEPROM Peaks EEPROM Communication check for I2C bus Display Item ICs Description IC8001 IC5510 IC3001 IC4001 IC4101 TU8201 TU8201 IC8802 IC6004 IC6005 IC8201 DT ADV VSW ADAV ASW TUN1 TUN2 FE GenX 4 MEM1 MEM2 GC5P FPGA IC7101 IC7119 GC FPGA SOS POWER 02 04 SOS LAMP 08 09 0A 0B Copyright 2007 Matsushita Electric Industrial Co Ltd Note If the same SOS error oc...

Page 10: ...B S E L E C T 9 P I C T U R E M E N U S E L E C T V O L A D J U S T V I V I D O N 1 key 2 key CAUTION Do not change any parameters Peaks SOFT Peaks EEP LSI DATA GenX SOFT GenX EEP GenX ROMCOR GC5P EEP FPGA FACTDATA 0 480 0 16 0 00 5b 0 15 60 0 00 00 0 00 00 20 0 3a 12FF FFFF Main Menu SRVICE ADJUST WB ADJ OPTION RM SET SRV TOOL MMD CHK Peaks software version Peaks EEPROM data version TV Microcontr...

Page 11: ...L key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key 3 key 4 key 3 key 4 key 3 key 4 key 3 key 4 key 3 key 4 key 3 key 4 key 3 key 4 key 3 key 4 key Not used for service Not used for service OPT HPOS 0024 OPT HPOS 001F MMD ...

Page 12: ... Ver 0 156 Peaks software Ver 0 480 Read every other number from the left Read every other number from the right INSTALLATION DIMENSIONS DIAGRAM LAMP CAUTION The Lamp Unit becomes very hot during operation When replacing the Lamp Unit wait until it has cooled off 1 hour or more TOP DUCT UNIT NOTE The optical parts will be exposed to the dust in the air when the Top Duct Unit is removed Therefore i...

Page 13: ... the cooling fan is still operating MODEL PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 PT 50LCZ70 K PT 56LCZ70 K PT 61LCZ70 K NOT USED MARK A B C D E F G H I PT Note Refer to Item 3 of Schematic Diagram Notes of Schematic Diagram and Circuit Board Layout Notes for mark PT Self Check 2 SELF CHECK 0 480 00 16 MEM2 OK DT ADV VSW ADAV ASW TUN1 TUN2 FE GenX4 MEM1 OK OK OK OK OK OK OK ...

Page 14: ...t all wires leads and clampers are placed in their original position It is important for the best operation of the unit Note Use extreme care especially for the following OPT TV Unit AC Cord Rear Fan Fig 9 1 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 14 ...

Page 15: ...riginal position It is important for the best operation of the unit Note Use extreme care especially for the following CN6701 From Rear Jack P C B Non Fabric Tape CN4501 From Speaker CN8201 From SD HDMI P C B Fig 9 2 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 15 ...

Page 16: ...original position It is important for the best operation of the unit Note Use extreme care especially for the following CN5503 From SD HDMI P C B CN8970 From Main P C B CN3502 From Front Jack Operation P C B Fig 9 3 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 16 ...

Page 17: ...lly for the following CN3501 From Main P C B CN1102 From Thermal Fuse CN6003 From Power Switch Operation P C B CN1101 From Power P C B CN6005 From Lamp Unit Clamp CN1 From Power P C B CN2754 From OPT Fan CN6801 From Main P C B CN2753 Lamp Fan CN151 From Lamp Unit CN2752 From Rear Fan CN2751 From Front Fan Fig 9 4 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 17 ...

Page 18: ...d clampers are placed in their original position It is important for the best operation of the unit Note Use extreme care especially for the following OPT TV Unit Top Duct Unit Fig 9 5 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 18 ...

Page 19: ...ver Unit Front Jack Operation P C B Power Switch Operation P C B SD HDMI P C B Front View Rear View LAMP LED POWER LED Front Door Rear Cover Main P C B Drive P C B Tuner P C B Rear Jack P C B Power P C B RF AMP Power Supply P C B Lamp Unit Lamp Fan Top Duct Unit Front Fan Rear Fan Support Shield PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 19 ...

Page 20: ... voltage DTV 9V line Abnormal voltage SUB 5V line Abnormal voltage MAIN 3 3V line Communication error between Peaks IC8001 and TV Microcontroller IC6004 Communication error between Peaks IC8001 and TV Microcontroller IC6004 12 Lamp does not light up 9 Lamp failure 10 Abnormal Lamp temperature 11 Lamp communication error 5 IC4501 Audio Amp failure 8 9 10 11 12 13 14 Lamp Fan stops 15 Fan Case Unit ...

Page 21: ...C IC4501 AUDIO POWER AMP IC1101 IC1102 IC1205 IC8001 PEAKS 30 57 34 SOUND SOS H PANEL SOS L PANEL STATUS SOS L SOUND SOS L PANEL SOS L PANEL STATUS SOS L 72 48 13 9 AC STOP L 12 6 10 11 5 L6 SOS L 114 G1 CN6005 7 67 FAN SOS CN3001 29 117 14 9 2 IC1107 5V REG 2 1 IC1107 5V REG 2 1 IC1105 1 8V REG 2 1 SUB 1 8V DTV 9V SUB 3 3V SUB 1 2V MAIN 3 3V IC1002 FEED BACK IC1003 SHUNT REG 1 3 8 9 10 11 CN1003 ...

Page 22: ... Abnormal temperature for Audio amp IC4501 Normal SOS SOS 0V on SUB 5V line MAIN P C B IC6004 TV MICROCONTROLLER SUB 5V SENS 34 SUB 5V 9V Normal SOS DC DC CONVERTER SOS 0V on MAIN 3 3V line MAIN P C B IC6004 TV MICROCONTROLLER MAIN 3 3V SENS 57 MAIN 3 3V 9V Normal SOS Normal SOS Q4502 Communication error between Peaks IC8001 andTV microcontroller IC6004 detection circuit POWER Indicator seven blin...

Page 23: ... LCD 17V line detection circuit POWER Indicator ten blinks SOS 0V on LCD 17V line MAIN P C B POWER P C B IC6004 TV MICROCONTROLLER LCD 17V SENS 10 LCD 17 V SUB 5 V 17V CN1101 CN1003 9 9 Normal SOS MAIN P C B POWER P C B RF AMP POWER SUPPLY P C B LAMP UNIT IC6004 TV MICROCONTROLLER LAMP ON H 88 CN6005 2 LAMP TXD 66 1 LAMP RXD LAMP ON H LAMP TXD SUB 5V LAMP RXD 26V GND AC IN AC IN 67 7 3 RL802 Q806 ...

Page 24: ...ICROCONTROLLER FAN SOS LAMP FAN SOS OPT FAN SOS FRONT FAN SOS REAR FAN SOS NORMAL REAR JACK P C B CONNECTION ERROR FRONT REAR FAN SD CONTROL FROM TV MICROCONTROLLER IC6004 OPT FAN SD CONTROL FROM TV MICROCONTROLLER IC6004 APPROX 0V APPROX 0 5V APPROX 1 3V APPROX 2V APPROX 2 8V APPROX 3 3V 117 9V 9V FRONT FAN CN2751 1 CN2751 2 CN2751 3 REAR FAN CN2752 1 CN2752 2 CN2752 3 OPT FAN CN2754 1 CN2754 2 C...

Page 25: ...ermal fuse detection circuit IC6004 TV MICROCONTROLLER 1 TV SUB ON H MAIN P C B POWER P C B POWER P C B Over current detection circuit IC1001 SWITCHING CONTROL T1002 Over current detect SWITCHING TRANSFORMER OVER CURRENT DETECT DRIVE CONTROL 9 14 5 CN1003 CN1101 8 8 CN1102 1 2 RL801 Q801 RL802 Q806 AC LINE FILTER AC LINE FILTER F801 8A 125V F1001 6 3A 125V AC IN 12V 12V STBY 7V TO RF AMP POWER SUP...

Page 26: ...5V line SUB 1 8V line SUB 3 3V line SUB 1 2V line DDR 3 3V line FHD 1 2V line The following voltage lines on the Main P C B is over voltage DT 9V line SUB 5V line SUB 1 8V line SUB 3 3V line SUB 1 2V line DDR 3 3V line FHD 1 2V line POWER Indicator one blink POWER Indicator two blinks POWER Indicator three blinks POWER Indicator four blinks POWER Indicator six blinks POWER Indicator seven blinks P...

Page 27: ...everal times Wait 5 minutes before retrying 2 If still NG replace the Lamp Unit 1 Try to turn on the power several times Wait 5 minutes before retrying 2 If still NG check that Connector CN1 and CN151 on the RF AMP Power Supply P C B are connected firmly 3 If still NG unplug the AC Cord and disconnect CN151 connector cable and check voltage at Pin 1 2 or 3 of CN151 on the RF AMP Power Supply P C B...

Page 28: ...ed to the next step Turn the power on Is there a snap sound of the Relay turning ON Relay RL801 RL802 on the Power P C B YES NO YES NO Does the Power Indicator D6803 on the Power Switch Operation P C B flash green The Power P C B is defective Replace the Power P C B Power Lamp Indicator flashes continuously Refer to How to solve problems indicated by the Error Indication Perform troubleshooting Pi...

Page 29: ...ace the Front Jack Operation P C B or the OPT TV Unit Only PC input is NG Replace the OPT TV Unit Only HDMI3 or SD Card input is NG All inputs are NG Replace the SD HDMI P C B or the OPT TV Unit ABNORMAL PICTURE No Picture Color Black and White picture Abnormal Picture Color Unsynchronized Picture Dark Picture HOW TO DETERMINE WHICH P C B IS DEFECTIVE Replace the OPT TV Unit or the Rear Jack P C B...

Page 30: ...er failure NO Still NG NO YES Replace the R CH Speaker Does the BALANCE screen becomes center position Set to the center position Swap the Speaker Connectors to confirm the Speaker failure NO Still NG NO YES No sound from built in R CH Speaker only Press MENU key on the remote and select Audio in MENU screen Then press OK Only Audio1 OR Audio2 input is NG Only Tuner input is NG Only Audio3 input i...

Page 31: ...01 DRIVE P C B MAIN P C B REAR JACK P C B TUNER P C B FRONT JACK OPERATION P C B SD HDMI P C B IC2901 CN2901 CN7001 CN3501 TUNER CN8801 SD CARD CN3502 CN3001 CN5503 CN9804 CN8201 CN9802 CN3001 CN3501 CN6701 COMPONENT IN 1 2 VIDEO IN 1 2 HDMI IN 3 HDMI IN 1 PC IN HDMI IN 2 VIDEO IN 3 S VIDEO IN CN8970 CN2001 CN2101 CN2201 IC2902 LCD VIDEO PROCESS INTERNAL PATTERN FOR LCD CHK LVDS REC IC7119 IC7101 ...

Page 32: ... M D C H K F R E Q 1 2 M A I N S E L E C T 3 4 S U B S E L E C T 9 P I C T U R E M E N U S E L E C T V O L A D J U S T V I V I D O N VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key Internal Pattern for LCD CHK Figure A Internal Pattern for GC CHK Figure B VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key VOL key ...

Page 33: ...oft material under the P C Boards or Unit to prevent damage b When reinstalling ensure that the connectors are connected firmly and electrical components have not been damaged c Do not supply power to the unit during disassembly and reassembly HOW TO REPLACE THE LAMP UNIT a Removal of Rear Cover b Removal of OPT TV Unit c Removal of Lamp Shield Case Ass y with Fans d Removal of Lamp Unit e Removal...

Page 34: ... Lamp debris may be noticed in the lamp compartment area after the rear cover is removed If present follow the notes in the disassembly procedure if not disregard these notes The Lamp Unit becomes very hot during operation When replacing the Lamp Unit wait until it has cooled off 1 hour or more LAMP CAUTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 34 ...

Page 35: ...the right Support Shield by releasing the Locking Tab 2 1 Remove the 4 screws 2 Disconnect Connectors CN3502 Ope CN4501 Speaker CN5503 SD CN6003 Power SW and CN8201 HDMI Before trying to remove the OPT TV Unit check the area under the Lamp shown by the arrow in the following picture Note If debris is present clean the debris with a vacuum cleaner 1 Spread blanket or drop cloth or similar material ...

Page 36: ...PT TV Unit OPT TV Unit Cabinet Note If debris is present remove all dust and debris with a vacuum cleaner Fig D1 3 3 Pull out the OPT TV Unit PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 36 ...

Page 37: ... disconnect Connector CN1102 2 Disconnect Connectors CN1 CN151 CN2751 CN2752 CN2753 CN6005 and release from the clampers Fig D1 4 453 453 453 453 453 453 453 453 482 CN1102 Thermal Fuse CN1 CN2753 CN151 CN2752 CN6005 Clampers CN2751 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 37 ...

Page 38: ...t up Lamp Shield Case Ass y with Fans Note Clean the surface of the plate under the Lamp with a vacuum cleaner 3 Remove the Lamp Shield Case Ass y with Fans by removing the 8 screws PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 38 ...

Page 39: ...moving the Lamp Unit The Lamp Unit becomes very hot during operation When replacing the Lamp Unit wait until it has cooled off 1 hour or more LAMP CAUTION d Removal of Lamp Unit 1 Disconnect two connector cables from the Lamp Ass y 2 Remove the Lamp Ass y by removing the 6 screws PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 39 ...

Page 40: ...Stay Plate The Lamp Unit includes the Lamp Fan Lamp Unit Lamp Support Shield Bottom View Fig D1 7 3 Remove the 4 plates Lamp Stay Plate Lamp Bracket Top Lamp Support Shield and Lamp Bracket Under by removing the 11 screws PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 40 ...

Page 41: ... 494 493 Lamp Fan Name Plate Fig D1 8 e Removal of Lamp Fan 1 Remove the Lamp Fan from the Lamp Ass y by removing the 7 screws using the Hex Wrench 2 5 mm PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 41 ...

Page 42: ...ing the Lamp Shield Case Ass y with Fans wire the Lamp Fan Cable and the Front Fan Cable as shown Lamp Shield Case Ass y with Fans Lamp Fan Cable Front Fan Cable Pass Pass Place Clamp Fig D1 9 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 42 ...

Page 43: ...sing the Locking Tab 2 1 Remove the 4 screws 2 Disconnect Connectors CN3502 Ope CN4501 Speaker CN5503 SD CN6003 Power SW and CN8201 HDMI Locking Tab Support Shield 401 CN4501 CN8201 CN6003 CN5503 CN3502 401 478 401 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 43 ...

Page 44: ...Fig D2 2 3 Pull out the OPT TV Unit Pull OPT TV Unit OPT TV Unit Cabinet PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 44 ...

Page 45: ...479 479 Spacer RF AMP Power Supply P C B CN151 CN1 REMOVAL OF THE FRONT FAN AND THE REAR FAN 1 Remove the OPT TV Unit Refer to Steps 1 2 in REMOVAL OF THE OPT TV UNIT 2 Disconnect Connector CN2752 and remove the Rear Fan by removing the 2 screws 3 Disconnect Connector CN2751 and remove the Front Fan by removing the 2 screws Fig D3 2 Rear Fan Front Fan CN2751 CN2752 404 404 404 404 Name Plate Name ...

Page 46: ... 1 Remove the Rear Jack Holder by removing the 6 screws 2 Disconnect Connectors CN2751 CN2752 CN2753 CN2754 3 Disconnect Connector CN3501 and remove the Rear Jack P C B by removing the 5 screws Fig D4 1 479 479 479 Tuner P C B CN8970 452 452 453 453 453 453 453 453 453 453 453 CN3501 Rear Jack Holder Rear Jack P C B CN2751 CN2752 CN2753 CN2754 Slide PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56...

Page 47: ...eld together while releasing the 6 locking tabs Fig D4 2 453 453 453 453 453 CN1 CN1101 Clamper Clamper Slide Power P C B with Shield forward Locking Tabs Power P C B with Shield Locking Tab Main PCB Shield Case Bottom Lift up to release PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 47 ...

Page 48: ... the Power P C B by removing the 5 screws and the 2 spacers then disconnect the AC Cord Fig D4 3 479 479 479 479 479 Spacers AC Cord Power P C B PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 48 ...

Page 49: ...e Rear Cover Refer to Step a in HOW TO REPLACE THE LAMP UNIT 2 For 50 inch models Fig D5 1a 1 Open the Front Door about 45 degrees and then pull it out gently 2 Remove the 3 screws 50 inch model PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 49 ...

Page 50: ...the front cover and the portion of the side with fingers and pull forward slightly at the portion and pull downward slightly at the portion Then do in the same way to remove the front cover 1 3 4 1 2 2 2 1 1 3 4 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 50 ...

Page 51: ...g D5 1b 1 Open the Front Door about 45 degrees and then pull it out gently 2 Remove the 3 screws 56 61 inch model 2 For 56 61 inch models PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 51 ...

Page 52: ... with fingers and pull forward slightly at the portion and pull downward slightly at the portion to release locking tabs There are X3 locking tabs Then do in the same way 1 3 4 1 2 2 5 4 While pulling forward slightly at the center of the front cover portion release the locking tabs A X2 at both ends of the front cover one by one to remove the front cover 1 5 5 2 1 1 3 4 Locking tabs X3 PT 50LCZ70...

Page 53: ...irm the tabs X8 on the top of the front cover are in position while sliding up 2 Then press upward slightly at the following portions X3 of the bottom of the front cover in the order shown below to lock the locking tabs Portion A Tab 3 inch 7 inch 3 inch 50 inch model 3 2 1 Fig D5 3a PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 53 ...

Page 54: ...iewing from the front and no bend on the bottom portions viewing from side 4 Install the Front Door and the 3 screws 3 inch No Gap Confirm there is no bend of the bottom side viewing from the sides The bend can be seen if the locking is not good enough 45 degree 1 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 54 ...

Page 55: ... the locking tabs A X2 in proper position Locking tab A Locking tab A Locking tab A 56 61 inch model Tab 2 Then slide the front cover upward Confirm the tabs X8 on the top of the front cover are in position while sliding up PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 55 ...

Page 56: ...es at the following portion to lock completely Confirm there is no gap on the top viewing from the front and no bend on the bottom portions viewing from side 5 Install the Front Door and the 3 screws 3 2 1 3 Then press upward slightly at the following portions X3 of the bottom of the front cover in the order shown below to lock the locking tabs PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 ...

Page 57: ...emove the 5 screws from front side 2 Lift up the Display Fig D5 2 401 401 401 401 401 1 2 3 4 5 Display Tighten the 5 screws in order 1 2 3 4 5 Reassembly Note PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 57 ...

Page 58: ...F THE SCREEN UNIT FROM THE DISPLAY 1 Remove the Display Refer to Steps 1 3 in REMOVAL OF THE DISPLAY 2 Remove the Screen Unit by removing the 14 screws Fig D6 1 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 58 ...

Page 59: ...n the Fresnel Lens and the Lenticular Screen Due to this risk it is strongly recommended to replace the Screen Unit as a unit Fig D6 2 465 Escutcheon Sub Unit Lenticular Screen Fresnel Lens Serial No Label Screen Support Corner Screen Support Corner Serial No Label of Lenticular Screen Front Serial No Label of Fresnel Lens Screen Support H Unit Screen Support V Unit Screen Support V Unit Screen Su...

Page 60: ...he rear cover assembled 2 Turn the power on To release this mode 1 After changing the value of OPT HPOS OPT VPOS the adjustment data will be written to the EEPROM 2 Press 1 key to return to the Main Menu or turn off the power 3 Install the Front Cover Unit with the screws and the Front Door Main Menu SRVICE ADJUST WB ADJ OPTION RM SET SRV TOOL MMD CHK Peaks SOFT Peaks EEP LSI DATA GenX SOFT GenX E...

Page 61: ...e Projection Unit Screw Twist Twist Screw Screw Screw Front View Fig M1 5 2 Adjust the Projection Lens by twisting so that the long line g and the long line h are within 4 dots The long line g and the long line h will be almost aligned horizontally G H G within 4 dots H long line g long line h MMD CHK 2 8 OPT HPOS 0024 Note If the Projection Lens is twisted left the Focus Screen twists left If the...

Page 62: ...ymmetrical to B by pressing the VOLUME UP DOWN key on the remote to change the value C width c width c width d width a width b width a width b D B A width d MMD CHK 2 8 G H B E I C K J D L F A OPT HPOS 0024 5 Confirm that all A B C D E F G H I J K L are each almost symmetrical 6 If not adjust the OPT HPOS and OPT VPOS repeat steps 1 6 until the picture is in the correct position 7 After changing t...

Page 63: ...surfaces must not be wiped with a cloth THE MIRROR Remove any dirt with an air blower or wipe with a clean soft dry cloth If wiped too forcefully the surface of the Mirror can be damaged If wiping with a clean dry cloth does not remove the dirt the Mirror must be replaced Fig 6 1 THE PROJECTION LENS Use lens cleaning paper and cleaner available at your local camera shop etc Dampen the cleaning pap...

Page 64: ... 3 4 10 3 4 11 0 12 3 4 13 0 14 0 15 3 3 16 3 3 17 5 2 18 0 19 0 20 3 4 21 0 22 3 4 23 24 0 25 3 3 26 0 27 3 3 28 3 3 29 30 CN6003 1 4 7 2 3 4 3 0 4 3 4 5 6 0 7 0 8 0 CN6005 1 0 WF8 2 5 1 3 5 2 4 5 6 0 7 0 1 WF9 CN8201 1 3 3 2 0 3 0 4 0 5 3 3 6 0 7 3 3 8 3 3 9 3 3 10 3 3 11 3 3 12 3 3 CN8801 1 2 3 2 4 2 3 0 4 31 6 5 2 3 6 5 1 7 0 8 5 1 9 0 10 1 8 11 0 12 2 9 13 0 14 0 15 0 16 0 17 5 1 18 0 19 5 1 ...

Page 65: ...10 0 WF4 11 0 WF5 12 0 WF6 13 0 14 0 WF4 15 0 WF5 16 0 WF6 17 0 18 4 2 WF7 19 4 6 20 4 6 21 2 2 22 2 2 23 4 5 24 4 5 25 0 26 0 27 0 28 1 3 29 2 9 30 3 4 31 1 3 32 5 0 33 5 0 34 9 0 35 0 REAR JACK P C B TUNER P C B CN8801 1 2 3 2 4 2 3 0 4 31 6 5 2 3 6 5 1 7 0 8 5 1 9 0 10 1 8 11 0 12 2 9 13 0 14 0 15 0 16 0 17 5 1 18 0 19 5 1 20 3 3 RF AMP POWER SUPPLY P C B CN1 1 2 AC120 CN151 1 26 0 2 26 0 3 26 ...

Page 66: ... p 0 2 V 20 µs V1 1 00 Vp p 0 2 V 20 µs V1 0 70 Vp p 0 2 V 20 µs V1 0 70 Vp p 0 2 V 20 µs V1 2 00 Vp p 0 5 V 20 µs WF1 WF2 WF3 WF4 WF5 WF6 WF7 WF8 WF9 V1 1 50 Vp p 0 5 V 5 ms V1 3 40 Vp p 1 V 5 ms PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 66 ...

Page 67: ...R DATA 40bit SIGNAL PROCESS FOR LCD PANEL IC2901 IC2902 B DATA 40bit G DATA 40bit PC IN POWER REMOTE SENSOR OPERATION BUTTON LAMP DRIVE DRIVE 3 3V POWER SW IC5501 EEPROM HDMI SW EQUALIZER IC5503 EQUALIZER IC9801 HDMI INTERFACE AD CONVERTER IC5510 TMDS DATA CLOCK TMDS DATA CLOCK I2C SERIAL DATA CLOCK I2C SERIAL DATA CLOCK I2C SERIAL DATA CLOCK HDMI IN1 AV IN HDMI1 INFORMATION DATA TMDS DATA CLOCK D...

Page 68: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 68 ...

Page 69: ...c Diagrams Example 6 2V Zener Voltage 2 How to identify Connectors Each connector is labeled with a Connector No and Pin No Indicating what it is connected to in other words its counter part Use the interconnection schematic diagram to find the connection between associated connectors Example The connections between P C B s are shown below POWER SUPPLY P C B MAIN P C B The Number of pins of the Co...

Page 70: ...N851 2 Pins AUDIO OUT R CH AUDIO OUT L CH VIDEO OUT AUDIO IN 2 R CH AUDIO IN 2 L CH VIDEO IN 2 AUDIO IN 1 R CH AUDIO IN 1 L CH S VIDEO IN 1 VIDEO IN 1 COMPONENT AUDIO IN 1 L CH COMPONENT AUDIO IN 1 R CH COMPONENT AUDIO IN 2 L CH COMPONENT AUDIO IN 2 R CH COMPONENT IN 1 Y PB PR COMPONENT IN 2 Y PB PR CN2101 CN2201 CN3502 CN4501 CN2901 FRONT JACK OPERATION P C B AUDIO IN 3 R CH AUDIO IN 3 L CH VIDEO...

Page 71: ...11 10k R1012 1k R1021 0 R1008 5600 R812 10k R822 100k R1027 5600 R1001 10k RL801 K6B1CGA00055 D1017 MAZ43000MF C1035 PT C1009 2200p 2kV RL802 K6B1CGA00055 R827 5600 R826 2700 D852 B0EAKP000012 C852 PT Q806 SWITCHING SWITCHING 2SD1819AHL R1026 0 82 7W D1018 PT C1015 330u 35V C1025 330u 35V D1011 B0JBSK000017 D1010 B0JBSK000017 C0DBZHG00012 IC1004 1 Vc 2 VIN 3 GND 4 Vo 5 SENSE 6 GND C1036 47u 50V C1...

Page 72: ...10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 CN9803 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 CN9801 SD CARD SLOT 1 DAT3 2 CMD 3 GND 4 VCC 5 CLK 6 GND 7 DAT0 8 DAT1 9 DAT2 10 CD 11 COM 12 WP L9801 J0JHC0000045 L9805 J0JHC0000045 L9807 J0JHC0000031 L9806 J0JHC0000031 L9810 PT L9809 J0JHC0000031 L9804 J0JHC0000045 L9808 PT TP9807 TP9805 TP9808 TP981...

Page 73: ...W G R G JK3509 W G R G JK3507 W G R G JK3501 S VIDEO IN1 VIDEO IN1 AUDIO IN1 L AUDIO IN1 R VIDEO IN2 AUDIO IN2 L AUDIO IN2 R VIDEO OUT COMPONENT Y1 COMPONENT AUDIO IN1 L COMPONENT AUDIO IN1 R COMPONENT AUDIO IN2 L COMPONENT AUDIO IN2 R DVI AUDIO IN2 L DVI AUDIO IN2 R COMPONENT PB1 COMPONENT PR1 COMPONENT Y2 COMPONENT PB2 COMPONENT PR2 AUDIO OUT L AUDIO OUT R C Y G Y G C G G V V G L L G R SW R R G ...

Page 74: ...0BBBA000022 CMPARATOR 1 2 3 4 5 6 7 8 Q2755 2SD0601A0L R2765 R2786 1k R2790 10k R2785 10k R2782 56k R2788 1k R2783 15k R2779 56k R2776 6800 C4125 C4122 PT PT R2780 22k R2781 56k JS2753 PT R2789 150k R2784 18k R2787 270k Q2756 SDA_ 5V V1_S_DET V1_V V1_Y THERMO V2_V D1_PB GND D2_PB GND GND TNR_R_AUDIO MAIN_R DTV_R V1_C GND V3_V MAIN_L TNR_L_AUDIO DTV_L A_MON_MUTE D1_Y D1_PR MON_V D2_Y D2_PR FAN_SD_C...

Page 75: ...D3526 JK3503 V V G L L G R R G JK3502 V V G L L G R R G JK3506 GR GR G B B G R R G JK3504 GR GR G B B G R R G JK3505 W G R G JK3507 W G R G JK3501 S VIDEO IN1 VIDEO IN1 AUDIO IN1 L AUDIO IN1 R VIDEO IN2 AUDIO IN2 L AUDIO IN2 R VIDEO OUT COMPONENT Y1 COMPONENT AUDIO IN1 L COMPONENT AUDIO IN1 R COMPONENT AUDIO IN2 L COMPONENT AUDIO IN2 R COMPONENT PB1 COMPONENT PR1 COMPONENT Y2 COMPONENT PB2 COMPONE...

Page 76: ... R2755 56k R2756 10k C4107 1u KB C4109 1u KB C4110 1u KB C4104 1u KB C4111 1u KB C4108 1u KB C4105 C4106 1u KB C4103 1u KB C4101 100u 16V L4101 J0JHC0000078 R4108 R4111 R4109 R4107 R4104 R4103 R4106 R4110 R2761 100 R2763 100 R2764 100 R2762 100 C0DBEKG00003 IC2751 1 Vc 2 VIN 3 GND 4 Vout 5 ADJ 6 GND CN2757 1 2 R2773 R2772 R2775 R2778 27k D R2777 120k D R2769 27k D C0DBEKG00003 IC2753 1 Vc 2 VIN 3 ...

Page 77: ...2 32 LOUT1 33 ROUT1 34 ADR 35 SCL 36 SDA 37 O2 38 BIAS 39 L11 40 R11 41 L12 42 R12 43 L13 44 R13 JK3506 GR GR G B B G R R G JK3509 W G R G JK3507 W G R G COMPONENT AUDIO IN1 R COMPONENT AUDIO IN2 L COMPONENT AUDIO IN2 R DVI AUDIO IN2 L DVI AUDIO IN2 R COMPONENT Y2 COMPONENT PB2 COMPONENT PR2 L4101 J0JHC0000078 Q4103 2SD0601ARL Q4102 2SD0601ARL Q4101 2SB0709A0L R3517 75 R4149 180k R3515 75 R4148 10...

Page 78: ...Q6802 2SB1218A0L Q6803 2SB1218A0L SW6801 POWER EVQ11G05R R6812 10k R6811 10k Q6804 2SD1819A0L LED DRIVE LED DRIVE LED DRIVE R6815 10k R6816 10k C6801 47u 6 3V RD R6807 0 R6808 100 R6806 470 CN6801 1 2 3 4 5 6 7 8 R6804 180 R6805 100 RM6801 INFRARED RECEIVER UNIT B3RAD00001431 Q6801 BUFFER 2SD0601A0L R6801 22k R6802 100 R6803 PT D6802 B3AAA0000975 TO MAIN P C B CN6003 STANDBY LAMP VIDEO SIGNAL AUDI...

Page 79: ... Q806 RL801 R826 D809 Q801 D802 C809 C807 TP803 D814 C804 TP813 R1027 D812 C1028 C1029 C1027 TP1006 L1011 C1025 C1015 D1017 R1031 R1030 R1029 C1036 C1019 C1018 L1013 TP1003 T801 C814 D811 C810 Q805 R820 R821 R812 R811 Q803 TP810 C1023 E C B TP802 R802 D801 TP805 R1023 Q1001 TP801 CN804 R822 Q804 R823 R818 R813 C815 C1031 C1021 R1024 TP1004 L1012 IC1004 R1028 1 5 C1037 L1015 L1010 L1014 L1007 PR100...

Page 80: ...17 TP9818 R9832 R9901 C9830 CN9802 1 2 29 30 1 11 12 10 8 7 6 5 4 3 2 SD CARD SLOT 9 1 12 CN9801 TP9814 1 19 LSJB3241 C E B C E B C E B R9854 R9853 R9859 R9851 R9860 R9857 R9856 R9855 R9865 R9873 R9864 R9872 R9858 R9868 R9863 R9876 C9831 R9870 R9871 R9869 R9877 R9866 R9867 R9850 R9861 R9889 R9888 R9891 R9890 C9840 R9899 R9894 R9895 R9812 R9882 R9808 Q9804 R9807 R9806 C9806 R9833 R9805 R9813 TP9813...

Page 81: ...R4139 R4140 R3519 C3508 R3517 R3518 C3509 R3516 R3515 R3513 C3510 R3511 C3506 R3507 C3504 R3508 R3510 R3509 C3505 R3506 R3502 R3501 C3502 R3504 C3512 R3521 R3522 C3513 R3503 R3512 C3507 C4139 C4140 D3544 D3543 D3542 D3541 JK3507 JK3506 JK3505 JK3504 JK3503 JK3502 JK3501 S VHS IN 1 VIDEO IN 1 AUDIO IN 1 L AUDIO IN 1 R VIDEO IN 2 AUDIO IN 2 L AUDIO IN 2 R VIDEO OUT AUDIO OUT L AUDIO OUT R COMPONENT ...

Page 82: ...P VOL DOWN TV VIDEO OK MENU SW6703 SW6702 SW6701 SW6705 SW6706 SW6707 LSJB3231 W8977 W8976 W8975 W8974 W8973 W8972 CN8970 R8972 C8983 JS8970 JS8971 JS8972 W8982 C8979 W8981 R8974 R8973 C8978 R8971 C8977 R8970 C8984 L8971 TU8970 L8972 C8981 C8982 C8975 C8974 C8972 1 C8970 C8971 W8980 W8978 W8979 L8973 L8970 C8973 C8976 C8980 1 2 19 20 21 LSJB3233 TUNER P C B LSEP3233A POWER SWITCH OPERATION P C B L...

Page 83: ...14 Exploded Views 14 1 MAIN PARTS SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 83 ...

Page 84: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 84 ...

Page 85: ...14 2 BASE BODY SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 85 ...

Page 86: ...14 3 DISPLAY SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 86 ...

Page 87: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 87 ...

Page 88: ...14 4 SCREEN SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 88 ...

Page 89: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 89 ...

Page 90: ...14 5 OPT TV UNIT SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 90 ...

Page 91: ...14 6 LAMP UNIT SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 91 ...

Page 92: ...14 7 PACKING PARTS AND ACCESSORIES SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 92 ...

Page 93: ...s whose Ref Nos are the same are interchangeable as replacement parts Any of these parts may be ordered and used as a replacement part 15 1 2 Mechanical Replacement Notes 1 Section No of parts shown in Exploded Views are indicated in the Remarks column 2 Abbreviation RTL Retention Time Limited This indicates that the retention time is limited for this item After the discontinuation of this item in...

Page 94: ...G 4 52 LSGP0560 LENTICULAR SCREEN B E H 4 52 LSGP0562 LENTICULAR SCREEN C F I 4 53 LSGP0555 FRESNEL LENS A D G 4 53 LSGP0559 FRESNEL LENS B E H 4 53 LSGP0561 FRESNEL LENS C F I 4 54 LSXA0886 SCREEN SUPPORT H UNIT 4 55 LSXA0945 SCREEN SUPPORT V UNIT A D G 4 55 LSXA0887 SCREEN SUPPORT V UNIT B C E F H I 4 56 TBMA220 PANASONIC BADGE 4 57 LSGV0137 BACK COVER A D G 3 57 LSGV0139 BACK COVER B E H 3 57 L...

Page 95: ... 15 3 ELECTRICAL REPLACEMENT PARTS LIST Definition of Parts supplier 1 All parts are supplied from PSTC NPC PRINTED CIRCUIT BOARD ASSEMBLY Ref No Part No Part Name Description Remarks E20 LSEP3231A FRONT JACK OPERATION P C B RTL E30 LSEP3232A POWER SWITCH OPERATION P C B RTL E40 LSXA0915 SD HDMI P C B E S D RTL E50 LSEP3237B POWER P C B RTL E60 LSEP3230A REAR JACK P C B RTL E70 LSEP3233A TUNER P C...

Page 96: ...2F2000L SMALL CAPACITY SILICON RECTIFIER DIODES D9814 MA22F2000L SMALL CAPACITY SILICON RECTIFIER DIODES RESISTORS Ref No Part No Part Name Description Remarks R9801 ERJ3GEYJ103V MGF CHIP 1 16W 10K R9802 ERJ3GEYJ103V MGF CHIP 1 16W 10K R9803 ERJ3GEYJ103V MGF CHIP 1 16W 10K R9804 ERJ3GEYJ472V MGF CHIP 1 16W 4 7K R9805 ERJ3GEYJ472V MGF CHIP 1 16W 4 7K R9806 ERJ3GEYJ473V MGF CHIP 1 16W 47K R9807 ERJ3...

Page 97: ...E SI D811 MA3X152E0L DIODE SI CHIP D814 MAZ42700MF DIODE ZENER 27V D852 B0EAKP000012 DIODE SI D1001 B0EBNT000008 DIODE SI D1002 MAZ71200BC DIODE ZENER 12V D1003 B0HAJL000001 DIODE SI D1004 MAZ73000BC DIODE ZENER 300V D1006 B0EAKV000052 DIODE SI D1007 B0HAJL000001 DIODE SI D1008 B0JCME000041 DIODE SI CHIP D1009 MAZ40910HF DIODE ZENER 9 4V D1010 B0JBSK000017 DIODE SI D1011 B0JBSK000017 DIODE SI D101...

Page 98: ...LSSC0766 HEAT SINK 15 3 5 REAR JACK P C B INTEGRATED CIRCUITS Ref No Part No Part Name Description Remarks IC2751 C0DBEKG00003 IC LINEAR IC2753 C0DBEKG00003 IC LINEAR IC2754 C0DBEKG00003 IC LINEAR IC2756 C0BBBA000022 IC LINEAR IC4101 AN15862A VT ICS FOR VIDEO AUDIO TRANSISTORS Ref No Part No Part Name Description Remarks Q2751 2SD1819AHL TRANSISTOR SI NPN CHIP or Q2751 B1ABCF000020 TRANSISTOR SI N...

Page 99: ...W 180K R4150 ERJ6GEYJ184V MGF CHIP 1 10W 180K CAPACITORS Ref No Part No Part Name Description Remarks C2753 F1H1E104A030 C CHIP 25V 0 1UF C2754 F1H1E104A030 C CHIP 25V 0 1UF C2755 F1H1E104A030 C CHIP 25V 0 1UF C2756 F1H1E104A030 C CHIP 25V 0 1UF C2757 F1H1E104A030 C CHIP 25V 0 1UF C2758 F1H1E104A030 C CHIP 25V 0 1UF Ref No Part No Part Name Description Remarks C2759 F1H1E104A030 C CHIP 25V 0 1UF C...

Page 100: ... 6 3V 330UF C8974 F1H1C104A065 C CHIP 16V 0 1UF C8975 ECJ1VB1H103K C CHIP 50V 0 01UF C8976 F2A1H560B358 ELECTROLYTIC 50V 56UF C8977 ECJ1VC1H820J C CHIP 50V 82PF C8978 ECJ1VC1H820J C CHIP 50V 82PF C8979 ECJ1VC1H100C C CHIP 50V 10PF C8980 F2A0J331B003 ELECTROLYTIC 6 3V 330UF C8981 F1H1C104A065 C CHIP 16V 0 1UF C8982 F1H1H102A219 C CHIP 50V 1000PF C8984 ECJ1VC1H101J C CHIP 50V 100PF COILS Ref No Part...

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