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Panasonic PT44LCX65 Service Manual
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Panasonic PT44LCX65 Service Manual

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Multi Media Display
PT-44LCX65
PT-52LCX65
PT-61LCX65
© 2005 Panasonic Shikoku Electronics Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MKE0505850C1
B2
Unauthorized
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  • Page 1 ORDER NO. MKE0505850C1 Multi Media Display PT-44LCX65 PT-52LCX65 PT-61LCX65 © 2005 Panasonic Shikoku Electronics Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 CONTENTS Page Page 1 SAFETY PRECAUSIONS 9.5. VOLTAGE CHART 1.1. GENERAL GUIDELINES 10 CIRCUIT BOARD LAYOUT 1.2. LEAKAGE CURRENT COLD CHECK 10.1. FRONT JACK C.B.A. 1.3. LEAKAGE CURRENT HOT CHECK 10.2. OPERATION C.B.A. / THERMISTOR 1 C.B.A. / 1.4.

  • Page 3: Safety Precausions

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 the limits specified, there is a possibility of shock hazard, 1 SAFETY PRECAUSIONS and the receiver should be repaired and rechecked before it is returned to the customer. 1.1. GENERAL GUIDELINES 1. For continued safety, no modification of any circuit should be attempted.

  • Page 4: Electrostatically Sensitive (Es) Devices

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 2 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistorsandsemiconductor "chip"...

  • Page 5: About Lead Free Solder (Pbf)

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 3 ABOUT LEAD FREE SOLDER (PbF)

  • Page 6: Service Notes

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 4 SERVICE NOTES LED INDICATIONS FOR ERROR CONDITION Each LED indication facilitates finding the cause of the error. When an error is detected, the Lamp comes off and the LED on the front will flash. POWER LED TEMP LED LAMP LED (Note 2)
  • Page 7 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 MAIN PARTS LOCATION <Front View> POWER LED TEMP LED LAMP LED Operation C.B.A. Lamp Cover Optical Cover Front Cover Unit <Rear View> Projection Unit & Top Duct 3 Thermistor 2 C.B.A. Cover Switch C.B.A. Thermal Thermistor 1 C.B.A.
  • Page 8 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 SERVICE MODE Service Mode Map In this mode, the following information can be confirmed on the Enter : screen: VOLUME DOWN button + TV/VIDEO key (on the front) (on the remote) (for more than 5 seconds in power off condition) Service Mode (1/3) Current Lamp elapsed time Power ON...
  • Page 9 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 BEFORE REMOVING THE MAIN C.B.A. OR WHEN REINSTALLING THE MAIN C.B.A. THE TV UNIT FROM THE UNIT AT THE OR THE TV UNIT INTO THE UNIT AT THE USE’S LOCATION USER’S LOCATION CAUTION: Note: 1. Set CURRENT LAMP value to original value as follows. The TV Unit includes the Main C.B.A.
  • Page 10 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REPLACEMENT OF LAMP Lamp Replacement Procedure: 1. Press the POWER button to turn off the power. 2. Wait for about 1 minute until the cooling fan stops. Lamp Time Reset Procedure: Note: Be sure to reset the Lamp time to "0" after replacing the new The lamp cooling fan will continue to operate for about 1 Lamp.
  • Page 11 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 CLEANING METHOD THE PROJECTION LENS Use lens cleaning paper and cleaner available at your local camera shop, etc. Dampen the cleaning paper with cleaner THE SCREEN UNIT AND THE MIRROR and gently wipe the surface of the lens from the center outward THE SCREEN UNIT (Lenticular Screen, Fresnel Lens) to remove dust.
  • Page 12 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 TO DISTINGUISH THE PROJECTION TO READ THE DIGITAL TUNER (PEAKS) LENS UNIT OR THE PROJECTION UNIT SOFTWARE VERSION AND TV MICROCONTROLLER SOFTWARE The only difference between the 44 inch model, the 52 inch VERSION model and the 61 inch model of the Projection Unit is the Projection Lens.
  • Page 13 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 RESET USER’S MEMORY FUNCTIONS DO NOT UNPLUG AC CORD DURING COOLING OPERATION Be sure to reset the user’s memory: After replacing the Digital Tuner C.B.A. The lamp cooling fan will continue to operate for approximately If the secret code of V-chip is forgotten.
  • Page 14 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 WIRE AND LEAD POSITION DIAGRAM OF THE UNIT After servicing, make sure that 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. Thermal Fuse Unit Fan 3 AC Cord...
  • Page 15 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 After servicing, make sure that 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. Speaker Connectors P6005 (From Operation C.B.A.) Fig.
  • Page 16 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 After servicing, make sure that 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. Clamper 20-pin Cable Clamper GND Wire...
  • Page 17 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 After servicing, make sure that 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. Clamper GND Wire P2904 P2303...
  • Page 18 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 After servicing, make sure that 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. P2302 P2902 (From Thermistor 1 C.B.A.) (From Fan1)
  • Page 19 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 After servicing, make sure that 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. P3903 P3902 P3901 (From Base...

  • Page 20: Disassembly / Assembly Procedures

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 5 DISASSEMBLY / ASSEMBLY PROCEDURES 5.1. CABINET SECTION CABINET SECTION DISASSEMBLY METHOD OF CABINET SECTION Cabinet section contains following removal procedures: REMOVAL OF THE BALLAST C.B.A. AND THE PROJECTION UNIT FROM THE CABINET REMOVAL OF THE TV UNIT AND THE DIGITAL TUNER C.B.A. FROM THE CABINET REMOVAL OF THE BASE BODY UNIT REMOVAL OF THE FRONT JACK C.B.A., THE CARD C.B.A., THE REAR JACK C.B.A., THE POWER C.B.A., THE MAIN C.B.A.
  • Page 21 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE BALLAST C.B.A. AND THE PROJECTION UNIT FROM THE CABINET 1. (PT-44LCX65/PT-52LCX65) Remove the Rear Cover by removing the 18 (or 21: PT-52LCX65) Screws (401, 454) then pinching the 4 latch tabs. (PT-44LCX65) Note: Remove the Front Cover Unit and remove the 2...
  • Page 22 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 2. 1) Disconnect Connectors P1301, P1302, P1305, P2501 (20-pin Cable), P2901, P2904. Note: Take extreme care not to damage the 20-pin Cable when disconnecting. 2) Remove the 5 Screws (401) and the 3 Screws (402). 3) Slide and lift up the Projection Unit with the Ballast C.B.A.
  • Page 23 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 3. 1) Disconnect the Connector P1306. 2) Remove the 2 Screws (451) and disconnect the Lamp Connector while releasing the hook. 3) Remove the Ballast C.B.A. by releasing the 2 Screws (402). Lamp Hook Connector P1306 Ballast C.B.A.
  • Page 24 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 4. 1) Remove the Top Duct 3 Unit by removing the 4 Screws (421). CAUTION: When removing the Screws (421) on the Top Duct 3 Unit, plastic dust may be produced. Therefore, confirm that there is no dust on the Top Duct 3 Unit.
  • Page 25 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE TV UNIT AND THE DIGITAL TUNER C.B.A. FROM THE CABINET 1. Remove the Rear Cover. Refer to Step 1 in "REMOVAL OF THE BALLAST C.B.A. AND THE PROJECTION UNIT FROM THE CABINET." 2.
  • Page 26 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 3. 1) Remove the DTV Jack Holder by removing the Screw (402). 2) Disconnect Connector DT10. 3) Remove the Digital Tuner C.B.A. by removing the 5 Screws (480). (BtoB Connector DT12 is disconnected.) TV Unit DT12 DT10 DTV Jack Holder...
  • Page 27 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE BASE BODY UNIT 1. Remove the Rear Cover. Refer to Step 1 in "REMOVAL OF THE BALLAST C.B.A. AND THE PROJECTION UNIT FROM THE CABINET." 2. Remove the 3 (PT-44/52LCX65) or the 5 (PT-61LCX65) Screws (401) from rear side, and remove the Display. Display (PT-61LCX65) Cylindrical...
  • Page 28 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 3. 1) Remove the Front Cover Unit from the latches. 2) Remove the Side Cover L/R Unit by removing the 6 (or 8: PT-52LCX65/PT-61LCX65) Screws (401, 454). (PT-52LCX65/PT-61LCX65) Base Body Unit Side Cover L Unit (PT-52LCX65 /PT-61LCX65) Side Cover R Unit...
  • Page 29 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE FRONT JACK C.B.A., THE CARD C.B.A., THE REAR JACK C.B.A., THE POWER C.B.A., THE MAIN C.B.A. AND THE BASE C.B.A. FROM THE TV UNIT CAUTION: Be sure to make a note of the CURRENT LAMP value (value A) in Service Mode (1/3): LAMP OPERATION TIME is stored in EEPROM on the Main C.B.A.
  • Page 30 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 3. 1) Release the AC Cord from the slot of the Rear Jack Holder. 2) Remove the Rear Jack Holder by removing the 5 Screws (402) then releasing the 3 Locking Tabs. 3) Remove the Screw (402), and pull off the Rear Jack C.B.A. (BtoB Connector P3501 is disconnected.) Rear Jack Barrier Rear Jack C.B.A.
  • Page 31 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 4. 1) Remove the 5 Screws (402). Then, pull off the Power C.B.A. with the P.C.B. Power Angle while releasing the clamper. (BtoB Connector P1006 is disconnected.) 2) Remove the Power C.B.A. by removing the 4 Screws (479). AC Cord Clamper 20-pin Cable...
  • Page 32 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 5. 1) Remove the 2 Screws (402). Then, pull off the Main C.B.A. with the P.C.B. Main Angle. (BtoB Connector P3401 is disconnected.) 2) Remove the Main C.B.A. by removing the 5 Screws (479). 20-pin Cable Main C.B.A.
  • Page 33 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 6. Remove the Base C.B.A. by removing the 4 Screws (479) then releasing the clampers. Base C.B.A. Clampers P.C.B. Base Angle Fig. D4-5...
  • Page 34 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE SCREEN UNIT FROM THE DISPLAY 1. Remove the DISPLAY. Refer to Steps 1~2 in "REMOVAL OF THE BASE BODY UNIT." 2. (PT-44LCX65/PT-52LCX65) Remove the Screen Unit by removing the 16 Screws (401). Screen Unit Fig.
  • Page 35 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 (PT-61LCX65) Remove the Screen Unit by removing the 17 Screws (401). Screen Unit Fig. D5-2-2...
  • Page 36 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 3. (PT-44LCX65/PT-52LCX65) Remove the 2 Screen Angle H Unit and the 2 Screen Angle V Unit by removing the 14 Screws (465), and remove the Fresnel Lens and the Lenticular Screen. Lenticular Screen Screen Unit Screen Angle V Unit Fresnel...
  • Page 37 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 (PT-61LCX65) Remove the 2 Screen Angle H Unit and the 2 Screen Angle V Unit by removing the 18 Screws (465), and remove the Fresnel Lens and the Lenticular Screen. Lenticular Screen Screen Angle V Unit Screen Unit Fresnel Lens...
  • Page 38 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE MIRROR FROM THE BACK COVER 1. Remove the Screen Unit. Refer to Steps 1~4 in "REMOVAL OF THE SCREEN UNIT FROM THE DISPLAY." 2. (PT-44LCX65/PT-52LCX65) 1) Remove the 2 Mirror Holder H and the 2 Mirror Holder V Unit (PT-52LCX65) by removing the 4 (or 8: PT-52LCX65) Screws (401).
  • Page 39 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 (PT-61LCX65) 1) Remove the 3 Mirror Holder H and the 2 Mirror Holder V Unit by removing the 10 Screws (401). 2) Remove the Mirror from the top by releasing the Back Cover slots. Note: Be careful that the Mirror does not fall down when removing. Mirror Holder H Back Cover Slots Mirror...
  • Page 40 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 REMOVAL OF THE OPERATION C.B.A. FROM THE CABINET 1. Remove the Display and the Front Cover Unit. Refer to Step 1 ~ 2 in "REMOVAL OF THE BASE BODY UNIT." 2. 1) Disconnect Connector P6701. 2) Remove the Operation Holder Unit with the Operation C.B.A.

  • Page 41: Adjustment Procedures

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 6 ADJUSTMENT PROCEDURES 1 WHEN REINSTALLING THE PROJECTION 4. 1) Then, press and hold the VOLUME DOWN button on the unit and the SWAP key on the remote for more than UNIT OR THE BASE BODY UNIT INTO 1 second.
  • Page 42 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 a. Mechanical Picture Position Adjustment (Tilt) b. Focus Adjustment 1) Loosen the 4 Screws on the Projection Unit. 1) Confirm that each of the pixels in the nine portions is clearly visible. Projection Lens O P T H P O S I O P T V P O S I...
  • Page 43 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 c. Electrical Picture Position Adjustment 1) Adjust OPT HPOSI so that "C" is symmetrical to "D." by pressing the VOLUME UP/DOWN key on the remote to change the value. 2) Press the CH UP/DOWN key on the remote to return to the OTHER menu.

  • Page 44: Troubleshooting Hints For Block Level Repair

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 7 TROUBLESHOOTING HINTS FOR BLOCK LEVEL REPAIR MAIN PARTS LOCATION <Front View> POWER LED TEMP LED LAMP LED Operation C.B.A. Lamp Cover Optical Cover Front Cover Unit <Rear View> Projection Unit & Top Duct 3 Thermistor 2 C.B.A.
  • Page 45 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 LED INDICATIONS FOR ERROR CONDITION Each LED indication facilitates finding the cause of the error. When an error is detected, the Lamp comes off and the LED on the front will flash. POWER LED TEMP LED LAMP LED (Note 2) (Note 3) Error No.
  • Page 46 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 How to solve the problem indicated by the Error Indication of LED (All symptom is that Lamp turns off or Lamp does not light up) Note: Before performing the troubleshooting, confirm that all connector cables in the unit are connected to connectors correctly. Error No.
  • Page 47 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 LAMP DOES NOT LIGHT UP Note: : 1. Before doing this troubleshooting, confirm that all connector cables in the unit are connected to the connectors correctly. Plug in the AC Cord. 2. When doing troubleshooting over again, be sure to turn the power off and unplug the AC Cord.
  • Page 48 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 No picture or abnormal picture ABNORMAL PICTURE: No Color Picture (Black and White picture) Abnormal Color Picture No Synchronization Picture Dark Picture Check that there is no picture or abnormal picture on the screen from all input terminals.
  • Page 49 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 No sound from built-in both L-CH and R-CH Speakers (All input are NG.) Check that there is an audio signal to the Audio Out Replace the TV unit (Base C.B.A.). Terminal from all input terminals. (Only Audio1, 2, Component 1, 2, OR 3 input is NG.) Replace the TV unit (Base C.B.A.
  • Page 50 PT-44LCX65 / PT-52LCX65 / PT-61LCX65...

  • Page 51: Block Diagrams

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 8 BLOCK DIAGRAMS OVERALL BLOCK DIAGRAM REAR JACK C.B.A. BASE C.B.A. IC4003,4004 P3501 P3002 IC4001 IC4201 IC4502 IC4501 COMPONENT IC4002 P4503 SPEAKER-R AUDIO IN 1 (L/R) SOUND AUDIO COMPONENT AUDIO IN 2 (L/R) PROCESSOR COMPONENT SPEAKER-L AUDIO IN 3 (L/R) AUDIO...
  • Page 52 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 POWER SUPPLY BLOCK DIAGRAM POWER C.B.A. BASE C.B.A. MAIN C.B.A. DIGITAL TUNER C.B.A. TP1007 T1001 +16V TP1009 F801 F1001 6.3A 125V/250V L802 L803 L1001 D1002 PR1004 -16V 5A 125V/250V (+16V) P804-1 AC LINE AC LINE AC LINE FULL-WAVE P1006-5,6,7...
  • Page 53 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 VIDEO SIGNAL PATH I BLOCK DIAGRAM (1/2) REAR JACK C.B.A. BASE C.B.A. MAIN C.B.A. JK3502 IC5004 (MAIN VIDEO SIGNAL PROCESS) VIDEO OUT P3501-29 P3002-29 10,21,30,75,88,114, GC3FM_s IC3001 (VIDEO SW) 123,135 +2.5V JK3503 COMPONENT 1,12,23,32,73,90, P3501-27 P3002-27 105,113,134 +3.3V...
  • Page 54 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 VIDEO SIGNAL PATH I BLOCK DIAGRAM (2/2) MAIN VIDEO SIGNAL SUB VIDEO SIGNAL VIDEO SIGNAL(MAIN/SUB) CARD Y/PB/PR SIGNAL IC5301 (VIDEO SIGNAL PROCESS) IC5304 (64M MEMORY) <FOR SCALER(720p COVERTER)> <CLOCK(129MHz)> E1,E2,E4, Y22-Y25,AA23-AA26,AB18,AB19,AC22, DATA BUS(32BIT) F1-F5,G2-G4 FIFO SDRAM AD17,AD18,AD21-AD24,AE17,AE18, INTERFACE...
  • Page 55 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 VIDEO SIGNAL PATH II BLOCK DIAGRAM VIDEO SIGNAL(MAIN/SUB) LCD DRIVE C.B.A. LCD(R) IC2503 (LVDS RECEIVER) IC2505 (SIGNAL PROCESS FOR LCD PANEL) +15.5V P2001-1 P2001-2 P2001-3 TP2001 P2001-4 IC2002 (SAMPLING HOLD) (IC2002 PIN29 LINE) TP2004 P2001-5 P2001-6 R DATA (8BIT) R DATA (10BIT)
  • Page 56 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 AUDIO SIGNAL PATH BLOCK DIAGRAM AUDIO SIGNAL MAIN C.B.A. BASE C.B.A. HDMI AUDIO (R) FROM VIDEO I BLOCK DIAGRAM HDMI AUDIO (L) IC4101 (SW) IC4002 IC4001 IC4201 IC4502 IC4501 (SW) (OP AMP) (SOUND PROCESSOR) (OP AMP) (AUDIO AMP) (R-CH) JK4101...
  • Page 57 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 SYSTEM CONTROL BLOCK DIAGRAM BASE C.B.A. MAIN C.B.A. DIGITAL TUNER C.B.A. P5301-35 DT12-35 I2C SERIAL CLOCK1 P5301-34 DT12-34 I2C SERIAL DATA1 P5301-32 DT12-32 I2C SERIAL CLOCK2 IC6003 (MAIN MICROCONTROLLER) P5301-33 DT12-33 I2C SERIAL DATA2 IC4201 (SOUND PROCESSOR) FROM/TO DIGITAL TUNER I2C SERIAL CLOCK1...
  • Page 58 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 OPTICAL BLOCK DIAGRAM SCREEN Blue Light Path Blue Light Path Green Light Path Green Light Path MIRROR Red Light Path Red Light Path PROJECTION UNIT PROJECTION LENS LIGHT IN POLARIZER LIGHT IN LIGHT IN BLUE POLARIZER POLARIZER LIGHT IN...

  • Page 59: Schematic Diagrams

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 9 SCHEMATIC DIAGRAMS 9.1. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES 1. Important safety notice 3. Parts marked "PT" are not used in any models included Components identified by the sign have special in this service model. characteristics important for safety.

  • Page 60: Interconnection Schematic Diagram

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 9.2. INTERCONNECTION SCHEMATIC DIAGRAM INTERCONNECTION SCHEMATIC DIAGRAM NOTE: For placing a purchase order of the parts, NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, be sure to use the part number listed in the parts list. IMPORTANT SAFETY NOTICE: THERMAL FUSE UNIT REPLACEMENT NOTE: NOTE:...

  • Page 61: Front Jack Schematic Diagram

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 9.3. FRONT JACK SCHEMATIC DIAGRAM FRONT JACK SCHEMATIC DIAGRAM NOTE: For placing a purchase order of the parts, NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, be sure to use the part number listed in the parts list. REFER TO BEGINNING OF SCHEMATIC SECTION.

  • Page 62: Operation / Thermistor 1 / Thermistor

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 9.4. OPERATION / THERMISTOR 1 / THERMISTOR 2 / COVER SWITCH SCHEMATIC DIAGRAMS NOTE: For placing a purchase order of the parts, NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, be sure to use the part number listed in the parts list. REFER TO BEGINNING OF SCHEMATIC SECTION.

  • Page 63: Voltage Chart

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 9.5. VOLTAGE CHART NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. OPERATIONC.B.A. FRONT JACK C.B.A. PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO.
  • Page 64 PT-44LCX65 / PT-52LCX65 / PT-61LCX65...

  • Page 65: Circuit Board Layout

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 10 CIRCUIT BOARD LAYOUT 10.1. FRONT JACK C.B.A. FRONT JACK C.B.A. LSEP3155A (COMPONENT SIDE) U3901 NOTE: CIRCUIT BOARD LAYOUT INCLUDES COMPONENTS WHICH ARE NOT USED. INFRARED PLEASE REFER TO THE SCHEMATIC DIAGRAM AND PARTS LIST FOR PROPER PARTS CONTENT. RECEIVER UNIT HEAD PHONE...

  • Page 66: Operation C.b.a. / Thermistor 1 C.b.a

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 10.2. OPERATION C.B.A. / THERMISTOR 1 C.B.A. / THERMISTOR 2 C.B.A. / COVER SWITCH C.B.A. NOTE: NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, CIRCUIT BOARD LAYOUT INCLUDES COMPONENTS WHICH ARE NOT USED. REFER TO BEGINNING OF SCHEMATIC SECTION. PLEASE REFER TO THE SCHEMATIC DIAGRAM AND PARTS LIST FOR PROPER PARTS CONTENT.

  • Page 67: Exploded Views

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11 EXPLODED VIEWS 11.1. MAIN PARTS SECTION...
  • Page 68 PT-44LCX65 / PT-52LCX65 / PT-61LCX65...

  • Page 69: Front And Base Section

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11.2. FRONT AND BASE SECTION...

  • Page 70: Display Section

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11.3. DISPLAY SECTION...
  • Page 71 PT-44LCX65 / PT-52LCX65 / PT-61LCX65...

  • Page 72: Screen Section

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11.4. SCREEN SECTION...
  • Page 73 PT-44LCX65 / PT-52LCX65 / PT-61LCX65...

  • Page 74: Projection Section

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11.5. PROJECTION SECTION...

  • Page 75: Tv Unit Section

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11.6. TV UNIT SECTION...

  • Page 76: Packing Parts And Accessories Section

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 11.7. PACKING PARTS AND ACCESSORIES SECTION...

  • Page 77: Replacement Parts List

    PT-44LCX65 / PT-52LCX65 / PT-61LCX65 12 REPLACEMENT PARTS LIST BEFORE REPLACING PARTS, READ THE FOLLOWING: replacement part is available as a complete assembly unit only. Do not try to disassemble the Infrared Remote Control Unit. 12.1. REPLACEMENT NOTES 12.1.3. Electrical Replacement Notes 12.1.1.

  • Page 78: Mechanical Replacement Parts List

    SCREEN ANGLE V UNIT ( B ) 4 PASC- PASC- LSXA0661 SCREEN ANGLE V UNIT ( C ) 4 PASC- LSYK1570 SCREEN UNIT ( C ) PASC- TBM0A3005 PANASONIC BADGE 4 PASC- TMM14414 STRIKE 1 PASC- LSGV0097 BACK COVER ( A ) 3 PASC- L6FANEHH0003 FAN3...
  • Page 79 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks LSDL0288 MIRROR ( A ) 3 PASC- LSPF0161 BAG,POLYETHYLENE ( A ) 7 PASC- LSDL0289 MIRROR ( B ) 3 PASC- LSPF0111 BAG,POLYETHYLENE ( B,C )

  • Page 80: Optional Accessory Replacement Parts List

    3. Parts without mark in the Remarks column are supplied The Lamp Unit (TY-LA1000) is not supplied as a from PSECI. replacement part. It is sold separately. To purchase a replacement, call the Panasonic accessory department. PRINTED CIRCUIT BOARD ASSEMBLY Ref. Part No.
  • Page 81 PT-44LCX65 / PT-52LCX65 / PT-61LCX65 CAPACITORS SWITCHES Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C3901 F2A0J4700014 ELECTROLYTIC 6.3V 47UF SW6701 EVQ11G05R SWITCH PUSH SW6702 EVQ11G05R SWITCH PUSH COILS SW6703 EVQ11G05R SWITCH PUSH Ref.

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