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Panasonic CT-2022HE Service Manual
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Panasonic CT-2022HE Service Manual

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Service Manual
This Service manual is issued as a service guide for the models of the NA7D family listed above. Included are
schematics, alignment procedures, disassembly procedures, and a complete parts list.
"WARNING! This Service Manual is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death."
The service technician is required to read and follow the "Safety Precautions" and "Important Safety Notice" in this Manual.
Color Television
Main Manual
(NA7D)
Panasonic
Models
CT-2022HE
CT-2022HCE
CT-2512HE
CT-2512HCE
CT-2522HE
CT-2522HCE
CT-2722HE
CT-2722HCE
CT-3222HE
CT-3222HCE
Copyright 2001 by Matsushita Electric Corporation of
America. All rights reserved. Unauthorized copying
and distribution is a violation of law.
ORDER NO. MTNC010734C1
B1 & B5
Chassis
TP360
TP360
DP361
DP361
EP361
EP361
FP363
FP363
GP364
GP364

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Summary of Contents for Panasonic CT-2022HE

  • Page 1 ORDER NO. MTNC010734C1 B1 & B5 Service Manual Color Television Main Manual (NA7D) Panasonic Models Chassis CT-2022HE TP360 CT-2022HCE TP360 CT-2512HE DP361 CT-2512HCE DP361 CT-2522HE EP361 CT-2522HCE EP361 CT-2722HE FP363 CT-2722HCE FP363 CT-3222HE GP364 CT-3222HCE GP364 This Service manual is issued as a service guide for the models of the NA7D family listed above. Included are schematics, alignment procedures, disassembly procedures, and a complete parts list.

  • Page 2: Important Safety Notice

    Important safety notice Special components are used in this television set which are important for safety. These parts are identified on the schematic diagram by the symbol and printed in BOLD TYPE on the replacement part list. It is essential that these critical parts are replaced with the manufacturer’s specified replacement part to prevent X-ray radiation, shock, fire or other hazards.

  • Page 3: Table Of Contents

    Control operation ....8 (left portion CT-2022HE/HCE) ....50 A-Board schematic (right portion CT-2022HE/HCE) .

  • Page 4: Service Notes

    Service notes Note: Some components may be affixed with glue. Be careful not to break or damage foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose.

  • Page 5: X-Ray Protection Circuit Check & Adjustments

    IMPORTANT: To protect against possible damage to X-Ray protection circuit check & the solid state devices due to arcing or static discharge, adjustments make certain that all ground wires and CRT DAG wire This test must be performed as final check before the are securely connected.
  • Page 6 Receiver feature table FEATURE/MODEL CT-2022HE/HCE CT-2512HE/HCE CT-2522HE/HCE Chassis TP360 DP361 EP361 Tuning system Number of channels Closed Caption V-Chip 75 Ω input Remote TV Only sold separately EUR501450 sold separately Comb filter 2 Dig 2 Dig 2 Dig V/A norm...
  • Page 7 Receiver feature table (continued) FEATURE\MODEL CT-2722HE/HCE CT-3222HE/HCE Chassis FP363 GP364 Tuning system Number of channels Closed caption V-Chip 75 Ω input Remote TV only sold separately sold separately Comb filter 2 Dig 2 Dig V/A norm MTS/SAP/DBX AI sound (always on) Built-in audio power 1.5Wx2 (10%) 1.5Wx2 (10%)

  • Page 8: Location Of Receiver Controls

    Location of receiver controls Appearance and A/V inputs may vary depending on model Front A/V input Remote control (available on sensor some models) Figure 2. Location of controls Quick reference control operation POWER button - Press to turn ON or OFF. VOLUME buttons - Press to adjust sound level, or to adjust audio menus, video menus, and select operating features when menus are displayed CHANNEL buttons - Press to select programmed channels.

  • Page 9: Disassembly For Service

    Disassembly for service Back cover Disassembly for CRT replacement 1. Discharge the CRT as instructed in the safety Remove all the screws marked with an arrow( precautions (see page 2). from the back of the receiver. 2. Disconnect the yoke (DY) plug, degaussing coil Note: Screw configuration, type, and number of (DEG) plug from the main board.

  • Page 10: Chassis Service Adjustment Procedures

    Chassis service adjustment procedures Note: Connect the (-) lead of the voltmeter to the All service adjustments are factory preset and should require adjustment unless controls and/or appropriate ground. Use IC801’s heat sink associated components are replaced. when the HOT ground symbol ( ) is used. otherwise, use COLD ground ( ) —...

  • Page 11: Purity And Convergence Procedure

    Purity and convergence procedure Adjustment is necessary only if the CRT or the results, note part number and look for specifications at deflection yoke is replaced or if the setting was Service Center) disturbed. The complete procedure consists of: 1. Vertical raster shift adjustment. (Only for models with purity/convergence assembly with 4 pairs of rings).

  • Page 12: For A 2-Piece Assembly

    Purity adjustment Final convergence procedure (see Fig. 10 When the receiver is in the service mode for making through Fig. 12) electronic adjustments, press the recall button on the Note: Vertical size and focus adjustments must be remote control to enter purity check. (See the service completed prior to performing the convergence adjustments electronic controls procedure).
  • Page 13 Figure 10. Vertical yoke movement Figure 11. Horizontal yoke movement Figure 12. Convergence magnets and wedges location Note: For models using 4 pairs of rings assemblies see Fig. 5 for details - 13 -...

  • Page 14: Service Mode (Electronic Controls)

    Service mode (electronic controls) This receiver has electronic technology using the I²C bus concept. It performs as a control function and it replaces many mechanical controls. Instead of adjusting mechanical controls individually, many of the B 00 33 C 00 0 255 control functions are now performed by using “on screen display menu”.
  • Page 15 Press the POWER button on the remote control to select the service adjustment. For adjustments: 1.Press CHANNEL up/down on the Note: Write down the original 2.Press VOLUME up/down on the remote control to select one of value set (b in Fig. 13 ) for remote control to adjust the the available service adjustments each...
  • Page 16 Default Cut-Off adjustment level ACL-COEF-factory preset ACL-COEF-factory preset ACL-COEF-factory preset ACL-WAIT-factory preset ACL-THRESHOLD-factory preset MACROVISION-factory preset OSD SELECT-factory preset KILLER ON-factory preset KILLER OFF-factory preset KILLER TIME-factory preset ACC THRESHOLD-factory preset ACC OFF-factory preset MUTE TIME-factory preset Default MTS adjustment level INPUT HIGH-LEVEL SEPARATION...
  • Page 17 Default VCJ adjustment (Continued) level ACC AMP OFF2-factory preset ACC AMP ON-factory preset ACC AMP CTL-factory preset BGP POSITION-factory preset OSD R-factory preset OSD G-factory preset OSD B-factory preset NOISE KILLER TIME-factory preset NOISE KILLER (ACC)-factory preset HV TIMING-factory preset Default VCJ adjustment (black expansion) level...

  • Page 18: Entering Service Mode (Back-Open Method)

    Default Default level Other adjustment level (without FM) (with FM) AFCT AFCB AFCC CLOCK TO B ITEMS To Check purity: When receiver is in service mode (red “CHK” is displayed), place a jumper in the AG connector between the terminals (shorting FB signal to ground). Press the RECALL button on the remote control to enter the white purity field check mode.
  • Page 19 Instructional flow chart for service mode IMPORTANT Always exit the service mode following adjustments. NORMAL MODE Momentarily short FA1 to FA2 ( AGING MODE • Yellow “CHK” appears in upper left corner of screen. WHITE • Volume Up/Down operate rapidly. SCREEN •...
  • Page 20 Instructional flow chart for service mode (continued) CUT-OFF ADJUSTMENTS. C ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL POWER (ON REMOTE) M, S, P & X adjustments procedures are similar to the B adjustments.

  • Page 21: Sub-Contrast

    Service adjustments (electronic controls) Note: It is recommended to allow for a 30 minute Tint/Color adjustment warm up period, at high brightness level (use Service DAC adjustment (B01), (B00) white screen), prior to any picture adjustment. Preparation: 1. Apply a rainbow color bar signal. Sub-Contrast 2.

  • Page 22: Sub-Brightness Final Adjustment

    3. Confirm using black & white pattern and a white White balance touch-up procedure: screen the color balance (gray scale and white Use this procedure to make minor adjustment to white balance). If white balance is required perform the balance. following: 1.

  • Page 23: Vertical Size

    Audio: 300Hz, 100% modulation, monaural (70 ±5dB, 75Ω OPEN, P/S 10dB). 2. Adjust the MTS input level adjustment (M00) until the voltage measured is 106 ± 6.0mV rms. Stereo separation adjustment (M01 & M02) Preparation: 1. Connect an RF signal generator to the RF antenna input.

  • Page 24: Service Adjustments (Mechanical Controls)

    Service adjustments (mechanical controls) Focus (part of T551) Preparation: Connect a signal generator and select a dot pattern. Procedure: Adjust the FOCUS control VR to obtain the sharpest and clearest dot pattern. a. Adjust for best center. b. Adjust for best area between the center and top right corner.
  • Page 25 4. If necessary, access the PICTURE screen can only be accessed using the ACTION menu. button on the Panasonic remote control or TV set. • Use the CH and VOL buttons to highlight When the set is in slave-to-mate (STM), hotel...
  • Page 26 Uploading television settings into 5. Repeat steps 1 – 4 to set up other televisions. the clone box (LEARN) Setting individual volume limits Models CT-2512HE/HCE Models CT-2512HE/HCE Models CT-2512HE/HCE does not have a digital interface on the back of the television. Models CT-2512HE/HCE does not have a To set the television, use the front panel.
  • Page 27 5. Adjust television volume • The green LED will light for about two (2) maximum desired level. seconds, if battery is charged. 6. Hold the ALT button while pressing the Note: If the green LED does not light for about two (2) seconds at the end of LEARN button on the clone box.
  • Page 28 Setting the television without a clone box Switching to hotel mode Adjust the features listed in the hotel mode feature chart before switching modes. 1. Press the ACTION button and VOL right button simultaneously 2. Within a second, press the ACTION button and the CH up button simultaneously.

  • Page 29: Identification Of Components

    Identification of components screw screw screw screw screw screw screw Figure 25. Screw location CRT socket Q351 R out Q352 G out Q353 B out Figure 26. C-Board component locations - 29 -...
  • Page 30 Identification of components IC050 halftone IC001 Components on trace side IC801 Front A/V IC003 IC451 IC002 jacks remote sensor vertical out EEPROM Z-Board D801 rect bridge IC552 5V reg IC2302 Q551 H-out IC551 9V reg F801 RL801 TNR001 fuse relay Flyback tuner T551...

  • Page 31: Audio Signal Path Block Diagram

    Audio signal path block diagram Figure 28. Audio signal block diagram - 31 -...
  • Page 32 Video signal path block diagram Figure 29. Video signal block diagram - 32 -...

  • Page 33: Parts List

    REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 34 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 35 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 36 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 37 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 38 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 39 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 40 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 41 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 42 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 43 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 44 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 45 REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.

  • Page 46: Components Abbreviations Guide

    REPLACEMENT PARTS LIST Models: CT-2022HE/HCE, CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE & CT-3222HE/HCE Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO.
  • Page 47 PARTS LIST ABBREVIATIONS GUIDE RESISTOR TYPE TOLERANCE Carbon ± 1% Fuse ± 5% Metal Oxide ± 10% Solid ± 20% Wire Wound ± 2% RES, C 270-J-1/4 CAPACITOR TYPE TOLERANCE Ceramic ± 0.25pF Electrolytic ± 0.5pF Polyester ± 1pF Styrol ±...

  • Page 48: Schematic Notes

    SCHEMATIC NOTES: 1. RESISTOR All resistors are carbon 1/4W resistor, unless otherwise noted by the following marks. Unit of resistance is ohm (Ω), (K=1,000, M=1,000,000) Non Flammable Solid Metal Oxide Metal (Precision and high stability) Wire Wound Thermistor Fusible Positive coefficient Thermistor Flame Proof Rectangular 2.

  • Page 49: A-Board Layout

    Diagrama Impreso Tarjeta-A -- A-Board Layout Todos los Modelos --All Models - 49 -...

  • Page 50: A-Board Schematic (Left Portion Ct-2022He/Hce)

    CT-2022HE/HCE Diagrama Eléctrico Tarjeta-A (Porción Izquierda) - A-Board Schematic (Left Portion) - 50 -...

  • Page 51: A-Board Schematic (Right Portion Ct-2022He/Hce)

    Diagrama Eléctrico Tarjeta-A (Porción Derecha) - A-Board Schematic (Right Portion) CT-2022HE/HCE 6.3A 125V - 51 -...

  • Page 52: A-Board Schematic (Left Portion Ct-2512He/Hce)

    CT-2512HE/HCE Diagrama Eléctrico Tarjeta-A (Porción Izquierda) - A-Board Schematic (Left Portion) - 52 -...

  • Page 53: A-Board Schematic (Right Portion Ct-2512He/Hce)

    Diagrama Eléctrico Tarjeta-A (Porción Derecha) - A-Board Schematic (Right Portion) CT-2512HE/HCE 6.3A 125V - 53 -...

  • Page 54: A-Board Schematic (Left Portion Ct-2522He/Hce)

    CT-2522HE/HCE Diagrama Eléctrico Tarjeta-A (Porción Izquierda) - A-Board Schematic (Left Portion) - 54 -...

  • Page 55: A-Board Schematic (Right Portion Ct-2522He/Hce)

    Diagrama Eléctrico Tarjeta-A (Porción Derecha) - A-Board Schematic (Right Portion) CT-2522HE/HCE 6.3A 125V - 55 -...

  • Page 56: A-Board Schematic (Left Portion Ct-2722Hehce)

    CT-2722HE/HCE Diagrama Eléctrico Tarjeta-A (Porción Izquierda) - A-Board Schematic (Left Portion) - 56 -...

  • Page 57: A-Board Schematic (Right Portion Ct-2722Hehce)

    Diagrama Eléctrico Tarjeta-A (Porción Derecha) - A-Board Schematic (Right Portion) CT-2722HE/HCE 6.3A 125V - 57 -...

  • Page 58: A-Board Schematic (Left Portion Ct-3222He/Hce)

    CT-3222HE/HCE Diagrama Eléctrico Tarjeta-A (Porción Izquierda) - A-Board Schematic (Left Portion) - 58 -...

  • Page 59: A-Board Schematic (Right Portion Ct-3222He/Hce)

    Diagrama Eléctrico Tarjeta-A (Porción Derecha) - A-Board Schematic (Right Portion) CT-3222HE/HCE - 59 -...

  • Page 60: C-Board Layout, Schematic & Voltages

    Diagrama Eléctrico, Impreso y Voltajes Tarjeta-C -- C-Board Schematic, Layout and Voltages ( CT-2512HE/HCE, CT-2522HE/HCE, CT-2722HE/HCE y CT-3222HE/HCE) TODOS LOS MODELOS -- ALL MODELS -- Diagrama Eléctrico Tarjeta-C -- C-Board Schematic Diagrama Impreso Tarjeta-C -- C-Board Layout Voltajes Tarjeta-C -- C-Board Voltages Q351 Q352 Q353...

  • Page 61: C-Board Schematic

    Diagrama Eléctrico, Impreso y Voltajes Tarjeta-Z , Diagrama Eléctrico Tarjeta-C (CT-2022HE/HCE) -- Z- Board Schematic, Layout & Voltages - C-Board Schematic (CT-2022HE/HCE) Diagrama Eléctrico Tarjeta-Z -- Z-Board Schematic ( CT-2022HE/HCE) Diagrama Eléctrico Tarjeta-C -- C-Board Schematic Diagrama Impreso Tarjeta-Z -- Z-Board Layout...

  • Page 62: Di-Board Layout, Schematic & Voltages

    TODOS LOS MODELOS -- ALL MODELS Diagrama Eléctrico, Impreso y Voltajes Tarjeta-DI -- DI-Board Schematic, Layout and Voltages IC1001 Q1001 Q1002 Q1003 Q1004 Q1005 ..4.26 0.00 0.45 0.74 0.00 0.00 ..4.26 4.99 0.10 0.00...

  • Page 63: A-Board Voltages And Waveforms

    Voltajes y Formas de Onda Tarjeta-A -- A-Board Voltages and Waveforms TODOS LOS MODELOS -- ALL MODELS IC001 IC005 IC552 IC2201 Q001 Q006 Q007 Q008 Q009 Q050 ..0.00 ..0.00 ..5.00 .
  • Page 64 NOTES - 64 -...
  • Page 65 NOTES: - 65 -...
  • Page 66 ® Printed in USA K01082223PL0801 - 66 -...

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