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Panasonic PT-56LCX66 Service Manual Download Page 23

Protection Circuit

2) Fan1, Fan2 or Fan3 stopped detection circuit

MAIN P.C.B. 

LCD DRIVE P.C.B.

(Over voltage Detect)

CN5700

CN2502

19

18

19

18

LAMP STATUS (Error No. 8)

27

85

I2C SERIAL DATA0 

(Error No. 4)

IC5001
(DIGITAL VIDEO SIGNAL 
PROCESS)

I2C SERIAL DATA0

B22

93

SOS2

IC6001 
(MAIN 
MICROCONTROLLER)

POWER P.C.B.

MAIN P.C.B.

1) SOS2 (over voltage/current detect) detection circuit

Normal

SOS

Normal

SOS

DT+9V 

DT+5V 

SW+2.5V

SW+3.3V

IC6001 (MAIN MICROCONTROLLER)

I2C SERIAL DATA

I2C SERIAL CLOCK

I2C SERIAL 

DATA

I2C SERIAL 

CLOCK

117

116

IC2301 (LCD MICROCONTROLLER)

FAN1 LOCK(H)

29

35

36

FAN2 LOCK(H)

30

FAN3 LOCK(H)

31

MAIN P.C.B.

LCD DRIVE P.C.B.

SOS terminal of IC6001 (Main microcontroller) and IC2301 (LCD Microcontroller)

+5V SENS (Error No. 3)

108

+9V SENS

59

+17V SENS

60

+5V SENS

4

+9V

DRIVE

(+7V)

(+8V)

(+7V)

+3.3V

4

2

IC2704

FAN1

FAN2

FAN3

CN2701-1
CN2701-2
CN2701-3

CN2701-3
CN2702-3
CN2703-3

CN2301-2

CN2501-1

CN6002-3

CN2702-2
CN2702-3

CN2702-1

CN2703-1
CN2703-2
CN2703-3

FAN1 LOCK(H)

29

FAN2 LOCK(H)

(Error No. 2)

30

FAN3 LOCK(H)

31

DRIVE

4

2

IC2702

DRIVE

4

2

IC2703

T1401

+5V
REG

2

1

IC1102

+2.5V
REG

2

1

IC1103

DC-DC
CONVERTER

IC1100

Q1102,
Q1105

93

SOS2 (Error No. 1)

CN1514

CN6001

7

9

7

9

MAIN
TRANS.

FULL-WAVE
RECTIFIER

(+9V)

13

15

1

POWER
FACTOR
CORRECTION

AC STOP(L)

89

SW

Q1106,
Q1107

SW

Q1108,
Q1109

Over
current
Detect

CN5700

CN2502

19

18

19

18

IC6001 (MAIN MICROCONTROLLER)

I2C SERIAL DATA

I2C SERIAL CLOCK

I2C SERIAL DATA
I2C SERIAL CLOCK

117

116

IC2301 (LCD MICROCONTROLLER)

35

36

(Error No. 5,6) TEMPERATURE DATA1

64

16

16

(Error No. 11) LAMP COVER OPEN(H)

92

(Error No. 7) FILTER ERROR DETECTION

62

(Error No. 12)

PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16

23

Summary of Contents for PT-56LCX66

Page 1: ...sonic Shikoku Electronics Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 Multi Media Display ORDER NO MKE0605850CE B2 ...

Page 2: ...hods 50 11 Block Diagrams 51 12 Schematic Diagrams 61 12 1 SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES 61 12 2 INTERCONNECTION SCHEMATIC DIAGRAM 62 12 3 FRONT JACK OPERATION SCHEMATIC DIAGRAM 63 12 4 POWER SWITCH THERMISTOR 2 COVER SWITCH SCHEMATIC DIAGRAMS 64 12 5 VOLTAGE CHART 65 13 Printed Circuit Board 67 13 1 FRONT JACK OPERATION P C B POWER SWITCH P C B THERMISTOR 2 P C B COVER SWITCH P...

Page 3: ...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 outlet Do not use an isolation transformer for this check 2 Connect A to exposed metallic part on the set And connect B to a good earth ground as shown in Figure 1 3 Use an AC voltmeter with 1 k...

Page 4: ... a grounded 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 i...

Page 5: ...tand 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 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 ...

Page 6: ...4 Specifications 6 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 ...

Page 7: ...5 Location of Controls and Components 5 1 Operation Instructions PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 7 ...

Page 8: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 8 ...

Page 9: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 9 ...

Page 10: ...5 2 Replacement of Lamp PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 10 ...

Page 11: ... Picture Menu will be changed to OFF automatically When the unit is turned off and turned back on Dynamic Iris OFF setting remains Lamp LED will not flash as long as Dynamic Iris setting in Adv adjust of Picture Menu is set to ON manually 1 H10SOS2 AC ON OFF AC ON OFF Power ON OFF Power ON OFF Power ON OFF Power ON OFF Clean Air Filter H20FANST H30DT9V H50GC4PR H70LAMCV H80LCDDV 2 3 4 6 7 SOS2 Ove...

Page 12: ...se Air Filter Air Filter Air Filter Projection Unit Top Duct 3 Lamp Cover Front Cover Unit Power Switch P C B Front View Rear View Optical Cover LAMP LED TEMP LED POWER LED Rear Cover Hall S P C B Main P C B Digital Tuner P C B TV Unit Digital Tuner P C B SD Card P C B Base P C B Front Jack Operation P C B Power P C B Iris P C B Fan 3 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 12 ...

Page 13: ...E USER S LOCATION When removing the Projection Unit remove the Lamp Unit and the Top Duct 3 Unit from the Projection Unit and keep them Then reinstall this Lamp Unit and the Top Duct 3 Unit into the new Projection Unit Top Duct 3 Unit 421 421 Knob Projection Unit 21 Lamp Unit LVDS Cable TO DISTINGUISH THE PROJECTION UNIT The only difference between the 52 56 inch model and 61 inch model of the Pro...

Page 14: ...Lamp is turned OFF When this OSD display appears remove the Projection Unit from rear and clean the air filters gently on the Projection Unit AIR FILTER CLEANING IS RECOMMANDED AT THIS TIME FIRST TURN THE UNIT OFF PLEASE CALL FOR SERVICE UNIT WILL BE TURNED OFF AFTER 1 MINUTE RESET USER S MEMORY FUNCTIONS Be sure to reset the user s memory After replacing the Digital Tuner P C B If the secret code...

Page 15: ...ect CURRENT LAMP in Service Mode 1 4 2 Press the VOLUME UP DOWN key on the remote to change to the original value value A that was noted before removing the Main P C B or the TV Unit at the user s location Value A Changeable Service Mode 1 4 S E R V I C E M o d e 1 4 L A M P O P E R A T I O N T I M E C U R R E N T L A M P 2 0 0 0 h O S D D I S P O N L O N C O U N T 1 5 3 B K S V 4 8 B F 9 D 7 2 B ...

Page 16: ... 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 AC Cord Projection Unit Base Body Unit TV Unit with Digital Tuner P C B Fig 9 1 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 16 ...

Page 17: ...t operation of the unit Note Use extreme care especially for the following CN6000 From Power P C B Clamper CN4501 From Power P C B CN5700 From LCD Drive P C B CN6008 From LCD Drive P C B CN6001 From Power Switch P C B CN6002 From Power P C B Speaker Connectors Fig 9 2 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 17 ...

Page 18: ...From Hall S P C B CN2502 From Main P C B Clamper Clampers Clamper CN2702 From Fan 2 CN2703 From Fan 3 CN2501 From Cover Switch P C B CN2303 No connection CN2701 From Fan 1 CN2705 To Iris P C B CN1001 AC Cord CN1522 From Main P C B CN1514 From Main P C B CN1520 From Thermal Fuse CN2301 From Thermistor 2 P C B CN1516 From Base P C B Clamper Clamper Clamper Clamper Clamper CN9501 No connection CN2704...

Page 19: ...mportant for the best operation of the unit Note Use extreme care especially for the following Lamp Connector Power Switch P C B Speaker Connector P2821 Thermistor 2 P C B CN6801 From Main P C B Fan3 Hook Clamper Clamper Clamper Thermal Fuse Fig 9 4 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 19 ...

Page 20: ...It is important for the best operation of the unit Note Use extreme care especially for the following Clampers CN6701 From Base C B A CN3901 From Base C B A DT10 From SD Card P C B Hook Clamper Clamper TV Unit with Digital Tuner P C B Fig 9 5 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 20 ...

Page 21: ...this unit LCD Drive P C B Thermal Fuse Air Filter Air Filter Air Filter Projection Unit Top Duct 3 Lamp Cover Front Cover Unit Power Switch P C B Front View Rear View Optical Cover LAMP LED TEMP LED POWER LED Rear Cover Hall S P C B Main P C B Digital Tuner P C B TV Unit Digital Tuner P C B SD Card P C B Base P C B Front Jack Operation P C B Power P C B Iris P C B Fan 3 PT 52LCX66 PT 56LCX66 PT 61...

Page 22: ...e Menu will be changed to OFF automatically When the unit is turned off and turned back on Dynamic Iris OFF setting remains Lamp LED will not flash as long as Dynamic Iris setting in Adv adjust of Picture Menu is set to ON manually 1 H10SOS2 AC ON OFF AC ON OFF Power ON OFF Power ON OFF Power ON OFF Power ON OFF Clean Air Filter H20FANST H30DT9V H50GC4PR H70LAMCV H80LCDDV 2 3 4 6 7 SOS2 Over volta...

Page 23: ...or No 3 108 9V SENS 59 17V SENS 60 5V SENS 4 9V DRIVE 7V 8V 7V 3 3V 4 2 IC2704 FAN1 FAN2 FAN3 CN2701 1 CN2701 2 CN2701 3 CN2701 3 CN2702 3 CN2703 3 CN2301 2 CN2501 1 CN6002 3 CN2702 2 CN2702 3 CN2702 1 CN2703 1 CN2703 2 CN2703 3 FAN1 LOCK H 29 FAN2 LOCK H Error No 2 30 FAN3 LOCK H 31 DRIVE 4 2 IC2702 DRIVE 4 2 IC2703 T1401 5V REG 2 1 IC1102 2 5V REG 2 1 IC1103 DC DC CONVERTER IC1100 Q1102 Q1105 93...

Page 24: ...CROCONTROLLER 5V SENS 108 9V 5V REG 2 1 IC1102 MAIN P C B LCD DRIVE P C B CN5700 CN2502 19 18 19 18 Normal SOS IC6001 MAIN MICROCONTROLLER I2C SERIAL DATA I2C SERIAL CLOCK I2C SERIAL DATA I2C SERIAL CLOCK 61 61 IC2301 LCD MICROCONTROLLER 35 36 FILTER ERROR DETECTION 62 9V FAN1 CN2701 1 CN2701 2 CN2701 3 DRIVE 4 2 IC2702 3 2 1 IC2705 5 6 Temperature Sensor error shorted open or abnormal detection c...

Page 25: ...DATA I2C SERIAL CLOCK 117 116 35 36 11 Lamp cover open detection circuit MAIN P C B LCD DRIVE P C B COVER SWITCH P C B CN5700 CN2502 16 16 CN2501 P2912 1 2 1 2 IC6001 MAIN MICROCONTROLLER LAMP COVER OPEN H SW2911 COVER SW 92 Q6011 Q6001 Q6000 Q1602 MAIN P C B LCD DRIVE P C B IRIS UNIT IRIS P C B 9 10 Iris Mechanism hardware error Iris calibration error detection circuit CN5700 CN2502 CN2705 CN9502...

Page 26: ...1002 IC1003 IC1405 IC1407 LOGIC IC1933 IC1934 IC1935 LOGIC 17V AMP 18V 200V TO BALLAST 30V 9V Q1305 T1405 Q1303 Q1304 IC6006 Q1601 STBY 3 3V RESET CN1401 AC stop detection circuit POWER P C B POWER P C B MAIN P C B POWER CONTROL CIRCUIT 1 POWER CONTROL CIRCUIT 2 POWER CONTROL CIRCUIT 2 2 CN1514 CN6000 2 2 1 4 2 4 IC6001 MAIN MICROCONTROLLER AC STOP L 89 2 POWER CONTROL CIRCUIT 2 AC STOP L AC STOP ...

Page 27: ... place the unit in humid or dusty location or areas exposed to smoke or steam surrounding temperature should be between 0 C 32 F and 35 C 95 F and humidity should be between 20 and 80 with no condensation The vents are not blocked It is recommended that a gap of at least 10 cm is left all around the unit even when it is placed inside a cabinet or between shelves 2 Check if the fans are operating p...

Page 28: ...d to the next step Is there a snap sound of the Relay turning ON Relay RL1902 RL1903 on the Power P C B YES NO YES NO Does the Power LED D6801 on the Power Switch P C B flash green Replace the Power P C B Turn the power ON Error 1 13 occurs Refer to ERROR INDICATION INFORMATION Refer to How to solve problems indicated by the Error Indication of LED Perform troubleshooting The Power LED D6801 goes ...

Page 29: ... input is NG Only Video3 input is NG Replace the TV Unit Front Jack Operation P C B or Base P C B Only PC input is NG Replace the TV Unit Main P C B Digital Tuner SD Card input is NG All inputs are NG Replace the Digital Tuner P C B or TV Unit Main P C B ABNORMAL PICTURE No Picture Color Black and White picture Abnormal Picture Color Unsynchronized Picture Dark Picture HOW TO DETERMINE WHICH P C B...

Page 30: ...eplace the TV Unit Base P C B 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 Replace the TV Unit Base P C B 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 2 input is ...

Page 31: ...2 DT10 P9005 P9003 CN6003 CN3000 CN3102 CN2502 CN5700 CN3901 TUNER MAIN P C B LCD DRIVE P C B PC IN HDMI IN 1 2 COMPONENT IN 1 2 VIDEO IN 1 2 S VIDEO IN 1 2 VIDEO IN 3 S VIDEO IN 3 Picture adjust menu Circuit shown in gray Main menu 1 Input the signal and display it Input picture is not displayed normally 2 Press MENU key to display the Main menu 3 Press OK key to select Picture adjust menu 4 If t...

Page 32: ... and dress the wires as they were originally Note a Place a cloth or some other soft 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 REMOVAL OF THE TV UNIT AND THE DIGITAL TUNER P C B FROM THE CABINET REMOVAL...

Page 33: ...THE DIGITAL TUNER P C B FROM THE CABINET 1 Remove the Rear Cover Unit by removing the 13 Screws 401 then pinching the 3 latch tabs latch tabs Rear Cover Unit 401 Fig D1 1 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 33 ...

Page 34: ...ate R by removing the 2 Screws 401 402 3 1 Remove the 2 Screws 402 on the Connecting Plate F and remove the Screw 401 on the left side of the TV Unit 2 Disconnect Connectors CN4501 CN6000 CN6001 CN6002 CN6008 and the 2 Speaker Connectors and release from the clampers 3 To access the GND Wire of the LVDS Cable slide the TV Unit with the Digital Tuner P C B along the Guide Tabs 4 Remove the Screw 40...

Page 35: ...ar Jack Holder by removing the 6 or 7 PT 52 56LCX16 PT 52 61LCX66 K PT 56LCX15 K Screws 402 452 and releasing the Locking Tab Fig D1 3 Grasping the center of both sides of the sheet or cable with your fingers slowly and steadily pull the LVDS Cable straight out from the connector Do not joggle the LVDS cable while disconnecting Reconnecting is done in the same manner Note CN5700 or CN2502 Sheets b...

Page 36: ...FROM THE CABINET 2 1 Remove the 2 Screws 402 on the Connecting Plate F 2 Remove the 4 Screws 401 on the Projection Unit 3 Slide the Projection Unit along the Groove 401 401 401 401 402 402 Connecting Plate F 401 401 401 401 Slide Projection Unit Connecting Plate F Groove Bottom View of Projection Unit 402 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 36 ...

Page 37: ... the screen 2 Remove the Lamp Unit by turning the Knob Top Duct 3 Unit 421 421 Knob Projection Unit 21 LVDS Cable Lamp Unit Fig D2 2 Replacement Note of Projection Unit 1 After replacing the Projection Unit be sure to perform ADJUSTMENT of Projection Unit Refer to WHEN INSTALLING THE PROJECTION UNIT OR THE BASE BODY UNIT INTO THE UNIT AT THE USER S LOCATION 2 These parts will be necessary when rep...

Page 38: ... 2 Remove the 5 Screws 454 from front side and remove the Display Fig D3 454 454 454 454 454 Display Front Cover Unit Base Body Unit Replacement Note After replacing the Base Body Unit be sure to perform ADJUSTMENT of Projection Unit Refer to WHEN INSTALLING THE PROJECTION UNIT OR THE BASE BODY UNIT INTO THE UNIT AT THE USER S LOCATION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 38 ...

Page 39: ...r by removing the 2 Screws 451 Fig D4 1 402 402 421 421 421 421 Open With Power P C B Power PCB Mount Metal opened Lamp Knob Power P C B Power PCB Mount Metal Power PCB Mount Metal Power P C B Lamp Connector CN1522 From Main P C B CN1001 AC Cord CN1514 From Main P C B CN1520 From Thermal Fuse 451 451 402 402 421 421 421 421 CN1516 From Base P C B This screw is deleted on a running change basis Thi...

Page 40: ... 479 479 Power P C B Power PCB Mount Metal spacer C1810 High voltage generated approx 400 V High voltage exists on the Power P C B While removing Power P C B do not touch any parts on the board Hold the edge of the board when removing it CAUTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 40 ...

Page 41: ... mark and the connector Then remove the Main P C B by removing the screws mark 4 Remove the Base P C B by removing the screws mark 359 81 75 76 77 81 81 81 95 82 74 80 359 80 25 95 95 95 479 479 479 479 479 402 402 402 402 402 402 402 E10 452 402 402 452 452 402 402 402 452 81 84 229 E60 E20 85 E50 84 84 84 84 84 72 479 402 479 479 479 479 752 452 D E F G H Main P C B Base P C B Front Jack Operati...

Page 42: ...5 1 Replacement Note for 56 inch Screen Unit Because there are two types of 56 inch Screen Unit a label T or K is indicated on the Screen Unit When servicing a 56 inch Screen Unit remove the Front Cover Unit and confirm the label on the unit Then order the correct parts according to the above chart PT 56LCX66 Screen Unit LSYK1871 is compatible with the Screen Unit LSYK1888 as a unit PT 56LCX16 PT ...

Page 43: ... in the Screen Unit are not compatible a label T or K is indicated on the Screen Unit When servicing individual parts of a 56 inch Screen Unit remove the Front Cover Unit and confirm the label on the Screen Unit Then order the correct parts according to the above chart 465 Escutcheon Lenticular Screen Fresnel Lens Serial No Label Screen Angle V Units Screen Angle H Units Serial No Label of Lenticu...

Page 44: ... is fragile Handle with extreme care Fig D6 1 Reassembly Notes for Mirror Install the Mirror using the following procedures 1 Hold the edge of the Mirror and insert the Mirror from the top into the Back Cover slots carefully When handling the Mirror do not touch the Mirror surface 2 Install the 2 Mirror Holder H Units and the 2 Mirror Holder V Units on the Mirror and tighten the 8 Screws 401 Mirro...

Page 45: ...irror Install the Mirror using the following procedures 1 Hold the edge of the Mirror and insert the Mirror from the top into the Back Cover slots carefully When handling the Mirror do not touch the Mirror surface 2 Install the 3 Mirror Holder H Units and the 2 Mirror Holder V Units on the Mirror and tighten the 10 Screws 401 Mirror Mirror Holder V Units Mirror Holder H Units 401 401 401 401 401 B...

Page 46: ... to Step 1 in REMOVAL OF THE TV UNIT AND THE DIGITAL TUNER P C B FROM THE CABINET 2 1 Remove the 2 Screws 465 and disconnect Connector CN6801 2 Remove the Power Switch P C B from the rear CN6801 Power Switch P C B 465 465 Fig D7 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 46 ...

Page 47: ...dition WORK MODE will appear on the screen C C O R G A M W B A L P U S H R E C A L L V C R W O R K M O D E Work Mode Fig M1 2 4 Press the VCR key to go to VCR mode then the RECALL key on the remote for more than 1 second FACTORY ADJUST will appear on the screen Factory Adjust mode F A C T O R Y A D J U S T 1 1 M 1 0 2 0 I 1 0 V I D E O A D J S O U N D F A N O T H E R P A R T I A L D T B O A R D D ...

Page 48: ... is twisted left the Focus Screen twists left If the Projection Lens is twisted right the Focus Screen twists right 3 Tighten the 4 Screws while fixing the Projection Lens a Focus Adjustment 1 Confirm that each of the pixels in the nine portions are clearly visible 2 If not loosen the Knob on the Projection Lens until the Knob can be moved Up Down Front View Knob Tighten Loosen Fig M1 6 3 Adjust t...

Page 49: ...cal to B by pressing the VOLUME UP DOWN key on the remote to change the value Focus Screen G H B E I C K J D C width c width c width d width a width b width a width b D L F A B A width d O P T H P O S I F 6 O P T V P O S I 0 2 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 HPOSI and OPT VPOSI repeat steps 1 6 until the picture is in the correct posit...

Page 50: ...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 paper with cleaner and gently wipe the surface of the lens from the center out...

Page 51: ...ATION BUTTON KEY MATRIX FRONT JACK OPERATION P C B CN6701 BASE P C B CN3103 CN3101 LAMP TEMP DRIVE DRIVE DRIVE 3 3V POWER SW GC4PRO AUDIO IN 1 L R AUDIO IN 2 L R COMPONENT AUDIO IN 1 L R COMPONENT AUDIO IN 1 L R COMPONENT AUDIO IN 2 L R AUDIO IN 1 L R AUDIO IN 2 L R AUDIO IN 3 L R HDMI AUDIO IN 1 L R TUNER AUDIO IN L R HDMI AUDIO IN L R HDMI AUDIO IN 2 L R PC AUDIO IN L R HDMI AUDIO IN 1 L R HDMI ...

Page 52: ...1522 1 CN1522 3 TO FROM SYSTEM CONTROL BLOCK DIAGRAM CN6002 LAMP ON H LAMP STATUS LAMP ON L OFF H CONTINUE POWER SUPPLY BLOCK DIAGRAM 2 2 CN4501 CONTINUE POWER SUPPLY BLOCK DIAGRAM 2 2 CN6000 RL1903 MAIN RELAY RL1902 SUB RELAY R1005 RUSH CURRENT PROTECTOR F1001 6 3A 250V CN1001 1 CN1001 2 AC IN T1801 T1302 C1810 DRIVE TRANS IC1409 12V REG IC1408 12V REG T1405 CURRENT SENSOR TRANS SWITCHING CONTROL...

Page 53: ...ER P C B POWER SW P C B ERROR VOLTAGE DETECT DT 30V DT 9V DT 5V CN6701 1 CN4501 2 CN6801 4 STBY 3 3V STBY 5V IRIS P C B CN9502 1 9V 5V IC1104 5V REG 5 4 TP1102 TP1117 TP1116 VOLTAGE LINE 9V DT MORE THAN 11V MORE THAN 8V MORE THAN 5V MORE THAN 5V 5V DT 3 3V 2 5V ERROR VOLTAGE 3 3V Q1102 Q1105 3 4 5 6 22 23 1 2 24 25 19 18 VCC ON OFF CONTROL SWITCHING OVER CURR LIMITER CONSTANT VOLTAGE CONTROL 16 15...

Page 54: ...4 TP3101 IC5800 D A CONVERTER D A AUDIO DATA INTERFACE Y UV H SYNC V SYNC HDMI CLOCK 123 126 129 132 141 142 XOR MASK MODE CONTROL AUDIO DATA DECODER MAIN CLOCK GENERATOR YUV CONVERTER COLOR RANGE SCALING COLOR SPACE CONVERSION UP DOWN CONVERSION 27MHz 74 25MHz FREQUENCY MODE 480i 480p 720p 1080i IC5804 OP AMP 6 7 2 1 8 110 113 116 119 133 136 2 3 121 D A HDMI AUDIO R POWER DOWN L TO AUDIO BLOCK D...

Page 55: ...5 B16 C14 C16 A18 A19 B17 B19 C17 C19 CLOCK 129MHz LVDS DATA A TO VIDEO II SIGNAL PATH BLOCK DIAGRAM CN2502 LVDS DATA A LVDS DATA B LVDS DATA B LVDS DATA C LVDS DATA C LVDS DATA D LVDS DATA D LVDS CLOCK LVDS CLOCK 64M MEMORY 31 51 52 IP CONVERTER PICTURE CONTROL MULTI WINDOW PICTURE IN PICTURE SPLIT SCREEN SEARCH SCALER 720p CONVERTER OSD MIX TTL PARALLEL TO LVDS SERIAL CONVERTER PLL VCC 9 26 34 4...

Page 56: ... 4 70 79 64 65 V REF 7V V REF 9 3V 64 65 V REF 7V V REF 9 3V 64 65 3 3V 15 5V TP2004 IC2004 PIN49 LINE VCC VCC 18 28 ETC 16 80 49 51 53 55 57 59 3 4 70 79 3 4 5 6 7 5 6 7 5 6 7 70 79 48 10 40 41 42 43 44 5 6 8 35 33 32 31 25 29 28 27 26 20 19 18 17 16 15 14 CN2002 1 CN2002 2 CN2002 3 CN2002 4 15 CN2002 16 CN2002 17 CN2002 18 CN2002 19 CN2002 20 CN2002 21 CN2002 22 CN2002 23 CN2002 24 CN2002 25 CN2...

Page 57: ...TER IC4002 AUDIO SW WITH 2 HDMI INPUT WITH 1 HDMI INPUT SERIAL I F 12 288MHz CLOCK AUDIO SW R CH TV LINE 3 LINE 1 LINE 2 COMPONENT 1 COMPONENT 2 HDMI D TV LINE 3 LINE 1 LINE 2 COMPONENT 1 COMPONENT 2 HDMI D 9 10 11 12 1 2 VCC 7 VCC 9V 5 VCC 6 FRONT JACK OPERATION P C B CN3102 10 CN3102 12 CN3901 9 CN3901 11 CN3000 1 CN3103 1 CN3000 7 CN3103 7 CN3000 4 CN3103 4 CN3000 2 CN3103 2 CN3000 8 CN3103 8 C...

Page 58: ...SS I2C SERIAL CLOCK0 I2C SERIAL DATA0 82 81 RESET L 78 IC5001 DIGITAL VIDEO SIGNAL PROCESS IC6002 I2C SERIAL CLOCK0 I2C SERIAL DATA0 A23 B22 RESET L RESET L D1 D6 RESET L 102 20 RESET L 93 SOS2 95 LOW B SW 26 AC SW ON H SOS2 LOW B SW AC STOP L AC SW ON H POWER LED R ON L 114 LAMP LED ON H 22 TEMP LED ON H 21 KEY DATA 0 96 KEY DATA 1 97 D6801 POWER RED GREEN OPERATION BUTTON FRONT JACK OPERATION P ...

Page 59: ...R 1 P S CONVERTER CONDENSER LENS INTEGRATOR 2 UV IR FILTER IRIS MECHANISM UNIT RELAY LENS 1 RELAY LENS 2 RELAY LENS 1 UV ABSORPTION FILTER FIELD LENS GREEN TRIMMING FILTER GREEN FIELD LENS RED TRIMMING FILTER RED DICHROIC MIRROR RED DICHROIC MIRROR GREEN FULL MIRROR BLUE FULL MIRROR BLUE FULL MIRROR RED LIGHT IN POLARIZER RED UNIT LIGHT IN POLARIZER BLUE LIGHT IN POLARIZER BLUE UNIT LIGHT IN POLAR...

Page 60: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 60 ...

Page 61: ...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 Connector Connector No on Main P C B P1503 P3004 10 Pins Ref No of the con...

Page 62: ... Pins AUDIO OUT R CH AUDIO OUT L CH VIDEO OUT AUDIO IN 2 R CH AUDIO IN 2 L CH VIDEO IN 2 S 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 CN2002 CN2003 14 CN2704 8 Pins 8 Pins CN2303 D E CN2303 USED FOR ADJUSTMENT OF LCD DRIVE P C...

Page 63: ...3903 0 L3902 0 L3901 0 R3904 100 R3903 75 R3902 75 R3901 75 R6702 1200 R6703 1500 R6704 2700 R6705 5600 R6706 18k R6707 1200 TP6701 TP6702 TP6703 TP6704 TP6705 TP6706 TP6707 TP6708 SW6701 PT SW6702 EVQ11G05R SW6704 EVQ11G05R SW6706 EVQ11G05R SW6707 EVQ11G05R SW6708 EVQ11G05R SW6705 EVQ11G05R SW6703 EVQ11G05R CN4591 1 2 3 4 5 6 7 RM6701 PNA4618M14VT VOUT GND VCC R6701 100 C3901 PT CN6701 1 2 3 4 5 ...

Page 64: ...S COVER SWITCH SCHEMATIC DIAGRAM SW2911 K0L1BA000114 1 3 2 4 P2912 2 1 J2911 PT COVER SW GND TO LCD DRIVE P C B CN2501 LAMP COVER SW LINKTOVOLTAGE CHART G R P_LED_R P_LED_G TEMP_LED LAMP_LED KEY_IN_2 STBY_3 3V IRIS_LED GND D6801 B3AGA0000072 R6801 10k R6802 10k Q6802 2SB1218A0L Q6803 2SB1218A0L SW6801 EVQ11G05R R6806 10k R6805 POWER 10k R6807 10k Q6804 2SD1819A0LXXS0000 R6808 10k Q6805 2SD1819A0L ...

Page 65: ...TAGE PIN NO VOLTAGE PIN NO VOLTAGE PIN NO VOLTAGE PIN NO VOLTAGE PIN NO VOLTAGE PIN NO VOLTAGE PIN NO VOLTAGE VOLTAGE CHART PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 Q6802 E 3 4 C 3 2 B 2 6 Q6803 E 3 4 C 1 5 B 3 4 Q6804 E 0 C 3 3 B 0 Q6805 E 0 C 3 3 B 0 CN6801 1 2 3 3 3 0 3 4 3 4 5 0 6 0 7 0 1 8 0 POWER SWITCH P C B PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 65 ...

Page 66: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 66 ...

Page 67: ...P C B LSEP3200A POWER SWITCH P C B LSEP3201A THERMISTOR 2 P C B LSEP3137B COVER SWITCH P C B LSEP3160A NOTE FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES REFER TO BEGINNING OF SCHEMATIC SECTION NOTE CIRCUIT BOARD LAYOUT INCLUDES COMPONENTS WHICH ARE NOT USED PLEASE REFER TO THE SCHEMATIC DIAGRAM AND PARTS LIST FOR PROPER PARTS CONTENT IMPORTANT SAFETY NOTICE COMPONENTS IDENTIFIED BY THE SIG...

Page 68: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 68 ...

Page 69: ...14 Exploded Views 14 1 MAIN PARTS SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 69 ...

Page 70: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 70 ...

Page 71: ...14 2 BASE BODY SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 71 ...

Page 72: ...14 3 DISPLAY SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 72 ...

Page 73: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 73 ...

Page 74: ...14 4 SCREEN SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 74 ...

Page 75: ...PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 75 ...

Page 76: ...14 5 PROJECTION SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 76 ...

Page 77: ...14 6 TV UNIT SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 77 ...

Page 78: ...14 7 PACKING PARTS AND ACCESSORIES SECTION PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 78 ...

Page 79: ...interchangeable as replacement parts Any of these parts may be ordered and used as a replacement part 15 1 2 Main Parts 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 production it will no longer be ...

Page 80: ...0313 ESCUTCHEON A 4 51 LSYK1880 ESCUTCHEON UNIT B 4 51 LSYK1875 ESCUTCHEON UNIT C 4 51 LSGY0326 ESCUTCHEON D 4 51 LSYK1881 ESCUTCHEON UNIT E 4 52 LSGP0528 LENTICULAR SCREEN A D 4 52 LSGP0548 LENTICULAR SCREEN B E Refer to Replacement Note for 56 inch Screen Unit in Disassembly and Assembly Instructions 4 or 52 LSGP0502 LENTICULAR SCREEN B E Refer to Replacement Note for 56 inch Screen Unit in Disa...

Page 81: ...8FFJ TAPPING SCREW STEEL 6 454 XTV4 16AFJK TAPPING SCREW STEEL 1 465 XTV4 12AFJ TAPPING SCREW STEEL 2 3 4 478 LSHD0099 FJ SCREW W WASHER STEEL 2 479 XYE3 FJ8FJ SCREW W WASHER STEEL 5 6 480 XTW3 8TFJ TAPPING SCREW STEEL 1 750 VZFS0006 CLAMPER 5 PSEC 752 LSLQ0307 FERRITE CORE 6 762 LSJA0533 CONNECTOR CABLE W PLUG 5 PSEC E10 LSXA0774 MAIN P C B A B C 6 RTL E10 LSXA0790 MAIN P C B D E 6 RTL E20 LSEP31...

Page 82: ...903 ERJ3GEYJ750V MGF CHIP 1 16W 75 R3904 ERJ3GEYJ101V MGF CHIP 1 16W 100 R6701 ERJ3GEYJ101V MGF CHIP 1 16W 100 R6702 ERJ3GEYJ122V MGF CHIP 1 16W 1 2K R6703 ERJ3GEYJ152V MGF CHIP 1 16W 1 5K R6704 ERJ3GEYJ272V MGF CHIP 1 16W 2 7K R6705 ERJ3GEYJ562V MGF CHIP 1 16W 5 6K R6706 ERJ3GEYJ183V MGF CHIP 1 16W 18K Ref No Part No Part Name Description Remarks R6707 ERJ3GEYJ122V MGF CHIP 1 16W 1 2K CAPACITOR R...

Page 83: ...15 4 5 ELECTRICAL PARTS LOCATED ON CHASSIS FUSE PROTECTOR Ref No Part No Part Name Description Remarks F001 LSJA0583 THERMAL FUSE UNIT PSEC 83 PT 52LCX66 PT 56LCX66 PT 61LCX66 PT 52LCX16 PT 56LCX16 ...

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