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Panasonic PT-56DLX75 Manual
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Panasonic PT-56DLX75 Manual

Panasonic PT-56DLX75 Manual

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ORDER NO. MKE0508855C1
Multi Media Display
PT-56DLX75 / PT-61DLX75
SPECIFICATIONS
1

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Summary of Contents for Panasonic PT-56DLX75

  • Page 1 ORDER NO. MKE0508855C1 Multi Media Display PT-56DLX75 / PT-61DLX75 SPECIFICATIONS...

  • Page 2: Safety Precautions

    2005 Panasonic Shikoku Electronics Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 1. SAFETY PRECAUTIONS 1.1. GENERAL GUIDELINES 1. For continued safety, no modification of any circuit should be...

  • Page 3: Leakage Current Cold Check

    attempted. 2. Disconnect AC Plug before disassembling this unit. 3. It is advisable to use an isolation transformer in the AC supply before servicing. 4. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.
  • Page 4 3. Use an AC voltmeter, with 1 k /V or more sensitivity, to measure the potential across the resistor. 4. Check each exposed metallic part, and measure the voltage at each point. 5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.

  • Page 5: Prevention Of Electrostatic Discharge

    1.5. TEMPERATURE DETECTION FOR THE LAMP UNIT This projector has bimetal (Thermostat) contacting the lamp unit to protect the lamp. If the temperature of the lamp exceeds 120 °C, the bimetal will operate to turn off the power. The installed position of the bimetal is shown in the illustration. To recover the bimetal from its off state, press the protrusion of the bimetal unit until hear click.

  • Page 6: About Lead Free Solder (Pbf)

    to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

  • Page 7: Troubleshooting Hints For Block Level Repair

    4. SERVICE NOTES 5. DISASSEMBLY/ASSEMBLY PROCEDURES 5.1. CABINET SECTION 5.2. OPTICAL BLOCK SECTION 6. ADJUSTMENT PROCEDURES 1 7. ADJUSTMENT PROCEDURES 2 8. TROUBLESHOOTING HINTS 8.1. TROUBLESHOOTING HINTS FOR BLOCK LEVEL REPAIR 9. BLOCK DIAGRAMS 10. SCHEMATIC DIAGRAMS 10.1. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES 10.2.

  • Page 8: Exploded Views

    11.2. OPERATION C.B.A. 12. EXPLODED VIEWS 12.1. MAIN PARTS SECTION...

  • Page 9: Front And Base Section

    12.2. FRONT AND BASE SECTION...

  • Page 10: Display Section

    12.3. DISPLAY SECTION...

  • Page 12: Screen Section

    12.4. SCREEN SECTION...

  • Page 14: Optical Block Section

    12.5. OPTICAL BLOCK SECTION...

  • Page 15: Tv Unit Section

    12.6. TV UNIT SECTION...

  • Page 16: Packing Parts And Accessories Section

    12.7. PACKING PARTS AND ACCESSORIES SECTION...

  • Page 17: Replacement Parts List

    13. REPLACEMENT PARTS LIST BEFORE REPLACING PARTS, READ THE FOLLOWING: 13.1. REPLACEMENT NOTES 13.1.1. General Notes 1. Use only original replacement parts: To maintain original function and reliability of repaired units, use...

  • Page 18: Important Safety Notice

    only original replacement parts which are listed with their part numbers in the parts list. 2. IMPORTANT SAFETY NOTICE Components identified by the sign have special characteristics important for safety. When replacing any of these components, use only the specified parts. 3.
  • Page 19 available. 3. After replacing the Optical Block Unit (Ref. No. 21) or the Base Body Unit (Ref. No. 40), be sure to perform "ADJUSTMENT of the Optical Block Unit." Refer to "WHEN INSTALLING THE OPTICAL BLOCK UNIT OR THE BASE BODY UNIT INTO THE UNIT AT THE USER'S LOCATION";...

  • Page 20: Mechanical Replacement Parts List

    Electrostatically Sensitive Devices 3. When replacing 0 resistor, a wire can be substituted for it. 13.2. MECHANICAL REPLACEMENT PARTS LIST Definition of Parts supplier: 1. Parts with mark "PSEC" in the Remarks column are supplied from PSEC. 2. Parts without mark in the Remarks column are supplied from PASC-NPC.
  • Page 21 Ref. No. Part No. Part Name & Description Remarks LSXY0910 TV UNIT 1,6 RTL LSJA0545 CONNECTOR CABLE W/PLUG LSKF0642 BUTTON DOOR LSYY0318 FRONT JACK DOOR UNIT EAB10117AL SPEAKER ASSEMBLY L EAB10117AR SPEAKER ASSEMBLY R LSMF0407 RUBBER SPACER LSYF0567 SIDE COVER L UNIT ( A ) LSYF0560 SIDE COVER L UNIT ( B ) LSYF0568...
  • Page 22 LSMA0844 MAIN/TUNER BOARD MOUNT METAL...
  • Page 23 Ref. No. Part No. Part Name & Description Remarks LSMA0847 REAR AV SHIELD PLATE LSJH0081 REAR JACK HOLDER LSGH0062 REAR JACK SHEET TMME075 EDGE SADDLE LSSC0774 FRONT JACK EARTH PLATE,STEEL LSJA0570 CONNECTOR CABLE W/PLUG TMM6425-1 CLAMPER LSMA0845 FRONT SHIELD METAL LSMA0846 TOP SHIELD METAL LSJA0553...

  • Page 24: Optional Accessory Replacement Parts List

    Part Name & Description Remarks TY-LA2005 LAMP UNIT NOTE NOTE: The Lamp Unit (TY-LA2005) is not supplied as a replacement part. It is sold separately. To purchase a replacement, call the Panasonic accessory department. 13.4. ELECTRICAL REPLACEMENT PARTS LIST Definition of Parts supplier:...
  • Page 25 1. All parts are supplied from PASC-NPC. PRINTED CIRCUIT BOARD ASSEMBLY Ref. No. Part No. Part Name & Description Remarks LSEP3172A MAIN C.B.A. (CIRCUIT BOARD DG) RTL E.S.D. LSEP3174A BASE C.B.A. (CIRCUIT BOARD A) LSEP3171A POWER C.B.A. (CIRCUIT BOARD P) LSEP3154B REAR JACK C.B.A.
  • Page 26 Ref. No. Part No. Part Name & Description Remarks L3901 ERJ3GEY0R00V MGF CHIP 1/16W 0 L3902 ERJ3GEY0R00V MGF CHIP 1/16W 0 L3903 ERJ3GEY0R00V MGF CHIP 1/16W 0 L3904 ERJ3GEY0R00V MGF CHIP 1/16W 0 L3905 ERJ3GEY0R00V MGF CHIP 1/16W 0 L3906 ERJ3GEY0R00V MGF CHIP 1/16W 0 L3907 ERJ3GEY0R00V MGF CHIP 1/16W 0...

  • Page 27: Pin Headers

    Ref. No. Part No. Part Name & Description Remarks 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 R6707 ERJ3GEYJ122V MGF CHIP 1/16W 1.2K R6708 ERJ3GEYJ103V MGF CHIP 1/16W 10K...

  • Page 28: Overall Block Diagram

    OPERATION C.B.A. I2C SERIAL DATA/CLOCK INTERFACE I2C SERIAL DATA/CLOCK P6701 PDG3 POWER LAMP POWER HDMI IN2 TMDS DATA/CLOCK DRIVE (AV IN) IC4000 CIRCUIT HDMI AUDIO IN(L/R) LAMP ENABLE LAMP ON(L) OPERATION BUTTON LAMP DET(ON(L)/OFF(H)) (KEY MATRIX) OVERALL BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...

  • Page 29: Power Supply Block Diagram

    IC2807 (DC-DC CONVERTER) PA7-9 PL4-9 +12V LOGIC PA7-(1-3) PL4-(1-3) +3.3V ERROR CONTROL IC6013 (+2.5V REG.) TP6070 TP6075 SWITCHING REG. +2.5V DRIVE +2.5V Q802 OVER CURR. LIMITER CONSTANT IC6008 (+1.8V REG.) TP6066 TP6071 VOLTAGE CONTROL REG. +1.8 V POWER SUPPLY BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 30 UV DATA (8BIT) DIGITAL TUNER UV DATA (8BIT) DT12-(97-100,102-105) PDG2-(97-100,102-105) BLOCK DIAGRAM V-SYNC DT12-106 PDG2-106 H-SYNC DT12-107 PDG2-107 CLOCK DT12-109 PDG2-109 OSD V-SYNC DT12-80 PDG2-80 OSD H-SYNC DT12-87 PDG2-87 OSD CLOCK DT12-85 PDG2-85 VIDEO SIGNAL PATH I BLOCK DIAGRAM (1/2) PT-56DLX75/PT-61DLX75...
  • Page 31 <CLOCK(129MHz)> 3D Y/C SEPARATION, ETC> D17,E17,ETC L4278 DATA BUS(32BIT) AB1-AB5,AB8,AB11,AC2-AC4,AC8,AD5-AD8,AD11, AD12,AE4-AE8,AE11,AE12,AF4-AF8,AF10-AF12 MEMORY L4281 +3.3V IC4261 1,3,9,15,29,35,41, AE14 43,49,55,75,81 +1.8V +3.3V REG. IC4262 C18,D18 +3.3V VDDI REG. IC4259 E7,E8,ETC +1.8V +2.5V REG. GC4U VIDEO SIGNAL PATH I BLOCK DIAGRAM (2/2) PT-56DLX75/PT-61DLX75...
  • Page 32 RESET 14 X6001 S-CLOCK +3.3V RESET 15 100MHz RESET 15 AB28 POWER DOWN(L) MASTER CLOCK CLOCK K5,K25,ETC +3.3V VCC(+3.3V) IC6903 IC6006 (BUFFER) IC6013 (COMPARATOR) E6,E7,ETC +2.5V V-REF VCC(+2.5V) CW INDEX REG. PL2-3 PCW1-3 VIDEO SIGNAL PATH II BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 33 CARD SERIAL DATA 1 IC8009 CARD SERIAL CLOCK CARD SERIAL CLOCK REG. CARD CS(L) CARD CS(L) FROM/TO SYSTEM CONTROL CARD READY(L) CARD READY(L) BLOCK DIAGRAM CARD RESET(L) RESET(L) TP8061 CARD DETECT(L) CARD POWER ON(H) SD CARD SIGNAL PROCESS BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...

  • Page 34: Audio Signal Path Block Diagram

    PA15-44 P3501-38 PA15-38 P3501-39 PA15-39 P3501-20 PA15-20 P3501-21 PA15-21 P3501-11 PA15-11 P3501-12 PA15-12 JK3502 P3501-2 PA15-2 AUDIO OUT (R) P3501-3 PA15-3 P3501-32 PA15-32 AUDIO OUT (L) P3501-31 PA15-31 Q3024 Q3022 MUTE-ON MUTE-ON Q3020 DRIVE AUDIO SIGNAL PATH BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...

  • Page 35: System Control Block Diagram

    LAMP TIME DATA Q6701 KEY DATA 2 PDG3-3 P6701-3 ADJUSTMENT DATA/ KEY DATA 1 PDG3-2 P6701-2 SETTING DATA OF EACH Q6702 KEY DATA 0 PDG3-1 P6701-1 IC's FOR DMD DRIVE C.B.A. KEY MATRIX (OPERATION BUTTON) SYSTEM CONTROL BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 36 I2C SERIAL DATA CARD DETECT2 (L) (ANALOG ON) 133MHz CLOCK RESET(L) CONTROL (DIGITAL ON) I2C SERIAL CLOCK I2C SERIAL CLOCK (ANALOG ON) DIGITAL(H)/ANALOG(L) DIGITAL(L)/ANALOG(H) IF SW(DIGITAL(L)/ANALOG(H)) DIGITAL(H)/ANALOG(L) DIGITAL(L)/ANALOG(H) +30V +30V VIDEO ANALOG AUDIO (R) AUDIO (L) DIGITAL TUNER BLOCK DIAGRAM (1/2) PT-56DLX75/PT-61DLX75...
  • Page 37 ATSC SERIAL DATA 0 DT12-18 ATSC SERIAL DATA 1 FROM DT12-33 I2C SERIAL DATA 2 SYSTEM CONTROL BLOCK DIAGRAM DT12-32 I2C SERIAL CLOCK 2 DT12-34 I2C SERIAL DATA1 DT12-35 I2C SERIAL CLOCK1 DT12-22 DTV RESET(L) DIGITAL TUNER BLOCK DIAGRAM (2/2) PT-56DLX75/PT-61DLX75...
  • Page 38 OPTICAL BLOCK DIAGRAM SCREEN MIRROR OPTICAL BLOCK UNIT OPTICAL CHASSIS UNIT PROJECTION LA2 Lens LENS UNIT LA1 Lens Condenser Lens LAMP Color Wheel Unit Reflector Mirror G13 Lens DMD IC DMD DRIVE C.B.A. (CIRCUIT BOARD L) OPTICAL BLOCK DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 39 AUDIO IN 3 (L) VIDEO IN 3 S-VHS IN 3 TEMP LAMP D3903 D3902 D4593 D4592 Q3902 D4595 R3909 R3907 R3908 R3905 P3901 P3902 Q3901 R3903 R3902 R3901 R3913 R3912 R3911 C3902 P3903 P4591 LSJB3187 FRONT JACK C.B.A. (CIRCUIT BOARD FJ) LSEP3187A PT-56DLX75/PT-61DLX75...
  • Page 40 Q6701 Q6702 R6705 R6704 R6703 R6702 R6706 R6707 SW6707 SW6706 SW6704 SW6702 SW6708 SW6705 SW6701 CH UP CH DOWN VOL UP VOL DOWN TV / VIDEO MENU POWER TP6711 TP6710 TP6712 TP6713 TP6709 TP6708 D6701 LSJB3156 OPERATION C.B.A. LSEP3156A PT-56DLX75/PT-61DLX75...

  • Page 41: Schematic Diagram Notes

    Ref. No. of the connection parts, such as lead cable or flexible cable, which are supplied as replacement parts. The Number of pins of the Connector. POWER SUPPLY C.B.A. MAIN C.B.A. P1503 P3004 (10 Pins) Connector No. on Main C.B.A. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES PT-56DLX75/PT-61DLX75...
  • Page 42 AUDIO IN 3 L-CH (6 Pins) P3902 AUDIO IN 3 R-CH (12 Pins) (10 Pins) P3903 PA10 (5 Pins) RGB IN PA13 PA13 (4 Pins) SPEAKER (R-CH) (2 Pins) PA15 SPEAKER (L-CH) (50 Pins) REAR JACK C.B.A. P3501 INTERCONNECTION SCHEMATIC DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 43 L3902 V-SW VIDEO IN3 LINE3 V D3912 D3911 R3913 L3903 AUDIO IN3 (L) LINE3 L AUDIO AUDIO IN3 (R) L4801 LINE3 R AUDIO L4802 D4801 D4802 D3913 LINK TO VOLTAGE CHART LSJB3187 FRONT JACK (CIRCUIT BOARD FJ) SCHEMATIC DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 44 KEY_IN0 1200 1500 2700 5600 SW6706 SW6707 SW6708 SW6701 SW6702 SW6704 EVQ11G05R EVQ11G05R EVQ11G05R EVQ11G05R EVQ11G05R EVQ11G05R POWER VOL_DOWN VOL_UP CH_DOWN CH_UP TV/VIDEO TP6713 R6707 1200 SW6703 SW6705 EVQ11G05R EVQ11G05R MENU LINK TO VOLTAGE CHART LSJB3156 OPERATION SCHEMATIC DIAGRAM PT-56DLX75/PT-61DLX75...

  • Page 45: Interconnection Schematic Diagram

    PT-56DLX75 / PT-61DLX75 10.2. INTERCONNECTION SCHEMATIC DIAGRAM INTERCONNECTION SCHEMATIC DIAGRAM IMPORTANT SAFETY NOTICE: NOTE: For placing a purchas COMPONENTS IDENTIFIED BY THE SIGN HAVE be sure to use the pa SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY. Do not use the part n WHEN REPLACING ANY OF THESE COMPONENTS, USE ONLY THE SPECIFIED PARTS.
  • Page 46 (3 Pins) PCW1 (6 Pins) FAN 1 DMD DRIVE C.B.A. (3 Pins) (7 Pins) (CIRCUIT BOARD L) FAN 3 Pins) (3 Pins) (4 Pins) Pins) Pins) PA13 PA13 (4 Pins) SPEAKER (R-CH) (2 Pins) SPEAKER (L-CH) INTERCONNECTION SCHEMATIC DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 47 10.3. FRONT JACK (CIRCUIT BOARD FJ) SCHEMATIC DIAGRAM FRONT JACK (CIRCUIT BOARD FJ) SCHEMATIC DIAGRAM NOTE: For placing a purchas be sure to use the pa Do not use the part n VIDEO SIGNAL (MAIN/SUB) AUDIO SIGNAL INFRARED U3901 R3907 R3910 RECEIVER PNA4701M00HB...
  • Page 48 PT-56DLX75 / PT-61DLX75 NOTE: NOTE: NOTE: For placing a purchase order of the parts, FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, PARTS MARKED "PT" ARE NOT USED. be sure to use the part number listed in the parts list.

  • Page 49: Operation Schematic Diagram

    PT-56DLX75 / PT-61DLX75 10.4. OPERATION SCHEMATIC DIAGRAMS OPERATION SCHEMATIC DIAGRAM NOTE: For placing a purchas be sure to use the pa Do not use the part n Q6701 Q6702 2SB1218A0L 2SB1218A0L (LED DRIVE) (LED DRIVE) TO MAIN C.B.A. PDG3 P6701...
  • Page 50 REFER TO BEGINNING OF SCHEMATIC SECTION. Do not use the part number on this diagram. Q6702 2SB1218A0L (LED DRIVE) TP6711 TP6712 6705 R6706 W6706 SW6707 SW6708 11G05R EVQ11G05R EVQ11G05R _DOWN CH_UP TV/VIDEO LINK TO VOLTAGE CHART LSJB3156 OPERATION SCHEMATIC DIAGRAM PT-56DLX75/PT-61DLX75...
  • Page 51 PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE Q6701 Q3901 Q6702 Q3902 TP6701 TP6702 TP6703 TP6704 TP6705 TP6706 TP6707 TP6708 TP6709 TP6710 TP6711 TP6712 TP6713 TP6714 TP6715 TP6716 VOLTAGE CHART PT-56DLX75/PT-61DLX75...

  • Page 52: Power Led

    LED INDICATIONS FOR ERROR CONDITION Each LED indication facilitates finding the cause of an error. When an error is detected, the Lamp turns off and an LED on the front will flash. POWER LED TEMP LED LAMP LED (Note 1, 3) (Note 2) Error No.
  • Page 53 MAIN PART LOCATIONS <Front View> POWER LED TEMP LED LAMP LED Operation C.B.A. Lamp Cover Optical Cover Front Cover Unit <Rear View> Color Wheel Fan 2 Color Wheel C.B.A. (Circuit Board CW) Fan 3 Cover Switch C.B.A. Ballast C.B.A. DMD Drive C.B.A. DMD IC (Circuit Board L) Optical Block Unit...

  • Page 54: Replacement Of Lamp

    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 with the The lamp cooling fan will continue to operate for about 1 new Lamp.

  • Page 55: Cleaning Methods

    CLEANING METHODS 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 56 WHEN AND HOW TO COPY EEPROM How to copy data: 1) Turn the power on. DATA FROM L BOARD TO DG BOARD 2) To enter Work Mode, press and hold the VOLUME DOWN button on the unit and the RECALL key on the The table below shows when it is necessary to copy the "Color remote for more than 5 seconds in power on condition.
  • Page 57 Service Manual. reset is finished, power shuts off automatically (the user’s memory is reset). MARK MODEL PT-56DLX75 PT-61DLX75 NOT USED Note: Refer to Item 3 of Schematic Diagram Notes of Schematic Diagram and Circuit Board Layout Notes,...
  • Page 58 BEFORE REMOVING THE MAIN C.B.A. WHEN INSTALLING THE MAIN C.B.A. (CIRCUIT BOARD DG) OR THE TV UNIT (CIRCUIT BOARD DG) OR THE TV UNIT FROM THE UNIT AT THE USE’S INTO THE UNIT AT THE USER’S LOCATION LOCATION Note: The TV Unit includes the Main C.B.A. (Circuit Board DG). CAUTION: 1.
  • Page 59 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. Fan 3 TV Unit with Digital Tuner C.B.A.
  • Page 60 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 PDG3 (From Operation C.B.A.) Fig.
  • Page 61 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. Rear Shield Case 20-pin Cable Fan 1 Clamper Clampers GND Wire...
  • Page 62 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. (From Base (From Power latch tab C.B.A.) C.B.A.) latch tab...
  • Page 63 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. Clampers Clampers P3903 P3902 P3901 (From Base (From Base (From Base C.B.A.)

  • Page 64: Cabinet Section

    CABINET SECTION DISASSEMBLY METHOD OF CABINET SECTION Cabinet section contains following removal procedures: REMOVAL OF THE OPTICAL BLOCK UNIT FROM THE CABINET REMOVAL OF THE TV UNIT FROM THE CABINET REMOVAL OF THE BASE BODY UNIT REMOVAL OF THE BALLAST C.B.A. REMOVAL OF THE FRONT JACK C.B.A.

  • Page 65: Rear Cover

    REMOVAL OF THE OPTICAL BLOCK UNIT FROM THE CABINET 1. (PT-56DLX75) Remove the Rear Cover by removing the 23 Screws (401) then pinching the 4 latch tabs. latch tabs latch tabs Rear Cover Fig. D1-1-1 (PT-61DLX75) Remove the Rear Cover by removing the 25 Screws (401) then pinching the 4 latch tabs.

  • Page 66: Name Plate

    2. 1) Remove the 5 Screws (402) on the Rear Shield Plate. 2) Disconnect the Fan 1 Connector Cable, and remove the Rear Shield Plate. 3) Remove Fan 1 by removing the 2 Screws (435). Ballast C.B.A. Name Plate Air Flow Fan 1 Fan 1 Connector Cable...
  • Page 67 3. 1) Remove the 2 Screws for GND to disconnect the 20-pin Cable. 2) Disconnect Connectors B1, B2, PL1 (20-pin Cable), PL4, PL5, the Thermostat/Cover Switch Connector and the Fan 2 Connector then releasing the clampers. Note: Take extreme care not to damage the 20-pin Cable when disconnecting. 4.
  • Page 68 REMOVAL OF THE TV UNIT FROM THE CABINET 1. Remove the Rear Cover and the Rear Shield Plate. Refer to Step 1~3 in "REMOVAL OF THE OPTICAL BLOCK UNIT FROM THE CABINET." 2. 1) Remove the 2 Screws (401). 2) Slide the TV Unit with the Digital Tuner C.B.A. slightly then disconnect Connectors PA1, PDG3 and the 2 Speaker Connectors. 3) Remove the TV Unit with the Digital Tuner C.B.A.
  • Page 69 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 Digital Tuner C.B.A.
  • Page 70 REMOVAL OF THE BASE BODY UNIT 1. Remove the Rear Cover. Refer to Step 1 in "REMOVAL OF THE OPTICAL BLOCK UNIT FROM THE CABINET." 2. Remove the 3 (or 5: PT-61DLX75) Screws (401) from rear side, and remove the Display. Display (PT-61DLX75) (PT-61DLX75)

  • Page 71: Front Cover Unit

    3. 1) Remove the Front Cover Unit from the latches. 2) Remove the Side Cover L/R Units by removing the 8 Screws (401, 454). Base Body Unit Side Cover L Unit Side Cover R Unit Front Cover Unit Fig. D3-2 Replacement Note of Base Body Unit (Ref.
  • Page 72 REMOVAL OF THE BALLAST C.B.A. 1. Remove the Rear Cover and the Rear Shield Plate. Refer to Step 1~2 in "REMOVAL OF THE OPTICAL BLOCK UNIT FROM THE CABINET." 2. Remove the Lamp by loosening the Screw from the front of the cabinet. 3.

  • Page 73: Connector Cable

    REMOVAL OF THE FRONT JACK C.B.A. (CIRCUIT BOARD FJ), THE CARD C.B.A., THE REAR JACK C.B.A., THE POWER C.B.A. (CIRCUIT BOARD P), THE MAIN C.B.A. (CIRCUIT BOARD DG) AND THE BASE C.B.A. (CIRCUIT BOARD A) FROM THE TV UNIT 1. CAUTION: Be sure to make a note of the CURRENT LAMP value (value A) in Service Mode (1/4): LAMP OPERATION TIME is stored in EEPROM on the Main C.B.A.
  • Page 74 4. 1) Release the AC Cord from the slot of the Rear Jack Holder. 2) Remove the Rear Jack Holder by removing the 7 Screws (402) then releasing the 3 Locking Tabs. 3) Remove the Top Shield Metal by removing the 8 Screws (402). 4) Remove Screw (479), and pull off both the Rear Jack Earth Plate and the Rear Jack C.B.A.
  • Page 75 5. 1) Remove the Front Shield Metal by removing the 5 Screws (402). 2) Remove the 2 Screws (402), and pull off the Main C.B.A. with the Main/Tuner Board Mount Metal. (BtoB Connector PDG1 is disconnected.) 3) Remove the Main C.B.A. by removing the 6 Screws (479). 20-pin Cable PDG5 Connector Cable...
  • Page 76 6. 1) Remove the 2 Screws (402), and pull off the Power C.B.A. with the Power Board Mount Metal after releasing from the clampers. (BtoB Connector P802 is disconnected.) 2) Remove the Power C.B.A. by removing the 6 Screws (479). Power Board Connector Cable Mount Metal...

  • Page 77: Connector Cables

    7. 1) Disconnect Connectors PA10, PA5, PA2, PA7, PA12, PA6, PA9. 2) Remove the Base C.B.A. by removing the 6 Screws (479). Connector Cables No connection Connector Cables PA10 PA12 PA6 Base C.B.A. (Circuit Board A) Base Board Mount Metal Fig.
  • Page 78 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-56DLX75) Remove the Screen Unit by removing the 19 Screws (401). Screen Unit Fig. D5-1-1...
  • Page 79 (PT-61DLX75) Remove the Screen Unit by removing the 17 Screws (401). Screen Unit Fig. D5-1-2...
  • Page 80 3. (PT-56DLX75) Remove the 2 Screen Angle H Units and the 2 Screen Angle V Units 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 81 (PT-61DLX75) Remove the 2 Screen Angle H Units and the 2 Screen Angle V Units 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 Screen Angle H Unit Escutcheon...
  • Page 82 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. 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.

  • Page 83: Operation

    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. by removing the 2 Screws (401) then releasing the 2 Locking Tabs.
  • Page 84 OPTICAL BLOCK SECTION DISASSEMBLY METHOD FOR OPTICAL BLOCK UNIT When reassembling, perform the step(s) in the reverse order. Bend, route and dress the wires as they were originally. Note : a. Place a cloth or some other soft material under the P.C. Boards and units to prevent damage. b.
  • Page 85 REMOVAL OF THE COLOR WHEEL UNIT CAUTION: 1. Do not touch either side of the Color Wheel (Filter) surface or the Color Wheel Hub. Use extreme caution when handling the Color Wheel to avoid damage, dust, spots (especially fingerprints), etc. Clean the Color Wheel if necessary.
  • Page 86 Reassembly Note for the Color Wheel Unit: 1) Install the Color Wheel Unit into the Optical Chassis using the 3 Bosses. Then install the CW Sponge so it covers the Connector Cable. Color Wheel Unit Optical Chassis Bosses Position of Color Wheel F.P.C. CW Sponge Connector Cable...
  • Page 87 REMOVAL OF THE BALLAST C.B.A. 1. 1) Remove the Lamp by loosening the Screw. 2) Remove the 2 Screws (421), disconnect the Lamp Connector and release from the hook. 3) Remove the Ballast C.B.A. after releasing the 4 latch tabs. latch tabs Lamp Ballast C.B.A.
  • Page 88 WHEN INSTALLING THE BASE BODY 4. 1) Press and hold the VOLUME DOWN button on the unit and the SWAP key on the remote for more than 1 UNIT INTO THE UNIT AT THE USER’S second. The unit will go into the Factory Adjust Mode. LOCATION: (FACTORY ADJUST menu will appear.) The following adjustments of the Optical Block Unit must be...

  • Page 89: Focus Adjustment

    b. Mechanical Picture Position Adjustment (Tilt) CAUTION: 1) Press the CH UP/DOWN key on the remote to select Be sure to perform the Focus Adjustment after turning on the power for between 1 and 30 minutes. "OPT HPOSI" on menu and press the VOLUME UP/ DOWN key on the remote.
  • Page 90 c. Electrical Picture Position Adjustment d. Copying the adjustment data of the Optical 1) Adjust OPT HPOSI so that "C" is symmetrical to "D" by Block Unit to EEPROM IC on the Main pressing the VOLUME UP/DOWN key on the remote to C.B.A.

  • Page 91: Adjustment Procedures

    ADJUSTMENT PROCEDURES 2 INITIAL GUIDELINES The table below shows which adjustments are necessary according to the unit parts and individual parts to be replaced. Make sure to perform these adjustments shown below as necessary. Replacement Parts Adjustment data is written to following EEPROM IC Adjustment Item IC1101 on...
  • Page 92 Perform the necessary adjustments according to the following flow chart. Adjustment flow for block level repair (Ex.) When replacing the Optical Block Unit a. Focus Adjustment b. Mechanical Picture Position Adjustment (Tilt) c. Electrical Picture Position Adjustment d. Copying the adjustment data of the Optical Block Unit to EEPROM IC on the Main C.B.A. (Circuit Board DG) e.
  • Page 93 WORK MODE AND FACTORY ADJUST MODE Work Mode Map Enter: VOLUME DOWN button + RECALL key (on the front) (on the remote) (for more than 5 seconds in power on condition) C - C O R / G A M / W - B A L P U S H R E C A L L 5 S E C...
  • Page 94 COLOR WHEEL INDEX DELAY 1. Display the Red100% ramp pattern by pressing the ASPECT key. ADJUSTMENT 2. Adjust "CW INDEX DELAY" value by pressing the VOLUME UP/DOWN key so that red ramp pattern is Purpose: even, with no discoloration. To set the standard color index. O T H E R 1 / 1 Symptom of Misadjustment:...

  • Page 95: White Balance Adjustment

    WHITE BALANCE ADJUSTMENT 1. Press the CH UP/DOWN key on the remote to select "WB" on menu. (Selection of White Balance data) 2. Select "WB" value (00 ~ 05) by pressing VOLUME UP/ DOWN key so that the white color of screen is standard. Note: color Color temperature...

  • Page 96: Main Parts Location

    MAIN PARTS LOCATION <Front View> POWER LED TEMP LED LAMP LED Operation C.B.A. Lamp Cover Optical Cover Front Cover Unit <Rear View> Color Wheel Fan 2 Color Wheel C.B.A. (Circuit Board CW) Fan 3 Cover Switch C.B.A. Ballast C.B.A. DMD Drive C.B.A. DMD IC (Circuit Board L) Optical Block Unit...
  • Page 97 LED INDICATIONS FOR ERROR CONDITION Each LED indication facilitates finding the cause of an error. When an error is detected, the Lamp turns off and an LED on the front will flash. POWER LED TEMP LED LAMP LED (Note 1, 3) (Note 2) Error No.

  • Page 98: Protection Circuit

    Protection circuit SOS terminal of IC1102 (Main microcontroller) IC4200 (CPLD) IC1102 (MAIN MICROCONTROLLER) CW DET(Error No. 6) (Error No. 1) SOS2 (Error No. 2) FAN SOS (Error No. 3) DT+9V SENS ASIC READY(H) (Error No. 9) (Error No. 4) +3.3V SENS I2C SERIAL DATA4 (Error No.
  • Page 99 3) Abnormal voltage (+9V line) detection circuit DT+9V IC2803 IC1102 (MAIN MICROCONTROLLER) +12V Normal +9V SENS SOS: 0V on DT+9V line MAIN C.B.A. (CIRCUIT BOARD DG) BASE C.B.A. (CIRCUIT BOARD A) 4) Abnormal Voltage (+3.3V line) for Main C.B.A. (Circuit Board DG) detection circuit IC1102 (MAIN MICROCONTROLLER) Normal +3.3V...
  • Page 100 7) Abnormal Temperature detection circuit IC1102 (MAIN MICROCONTROLLER) IC6904 SERIAL DATA4 SERIAL DATA4 Temp too high -- ALERT Temp too low -- ALERT SOS: over 75 C or under -24 C DMD DRIVE C.B.A. MAIN C.B.A. (CIRCUIT BOARD DG) (CIRCUIT BOARD L) COLOR WHEEL C.B.A.
  • Page 101 AC stop detection circuit T802 IC1103 RESET STBY+3.3V D851-D854 IC1102 FULL-WAVE STBY+7V (MAIN MICROCONTROLLER) IC1108 RECTIFIER D861 AC STOP Normal BASE C.B.A. (CIRCUIT BOARD A) POWER C.B.A. (CIRCUIT BOARD P) MAIN C.B.A. (CIRCUIT BOARD DG) Over current detection circuit IC801 (SWITCHING CONTROL) T801 DRIVE CONTROL...
  • Page 102 How to solve the problem indicated by the Error Indication of LED (The symptom of all errors 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 correctly. Error No.

  • Page 103: Lamp Does Not Light Up

    Note: LAMP DOES NOT LIGHT UP When doing troubleshooting over again, be sure to turn the power off and unplug the AC Cord. Before doing this troubleshooting, confirm that all connector cables in the unit are connected to the connectors correctly. In particular, confirm the following connector cables: •...
  • Page 104 HOW TO DETERMINE WHICH C.B.A. IS DEFECTIVE No picture or abnormal picture ABNORMAL PICTURE: No Picture Color (Black and White picture) Abnormal Picture Color Unsynchronized Picture Dark Picture Replace the TV Unit (Only Video1,2 OR 4 input is NG.) (Rear Jack C.B.A. or Base C.B.A. (Circuit Board A)).
  • Page 105 No sound from both L-CH and R-CH built-in Speakers (All inputs are NG.) Check that there is an audio signal to the Audio Out Replace the TV Unit Terminal from all input terminals. (Base C.B.A. (Circuit Board A)). (Only Audio1, 2, Replace the TV Unit OR 4 input is NG.) (Base C.B.A.
  • Page 106 TIPS FOR DETERMINING WHICH C.B.A. IS DEFECTIVE TV UNIT OPTICAL BLOCK UNIT COLOR WHEEL REAR JACK C.B.A. BASE C.B.A. (CIRCUIT BOARD A) MAIN C.B.A. (CIRCUIT BOARD DG) DMD DRIVE C.B.A. (CIRCUIT BOARD L) UNIT IC3001 IC4258 IC4265 IC5950 IC6001 IC6004 IC6012 P3501 PA15...
  • Page 107 HOW TO DISPLAY THE INTERNAL PATTERN VOLUME DOWN button + RECALL key (on the front) (on the remote) (for more than 5 seconds in power on condition) C - C O R / G A M / W - B A L P U S H R E C A L L 5 S E C...

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