Table of Contents
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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 in this
manual are a set of schematics, block diagrams, functional descriptions, 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 Main Manual.
Color Television
Main Manual
(NA7D)
Panasonic
Models
CT-20R6E
CT-20R6CE
CT-20D11E
CT-20D11DE
CT-2006SE
CT-20G6E
CT-20G6DE
CT-2016SE
Copyright 2001 by Matsushita Electric Corporation of
America. All rights reserved. Unauthorized copying
and distribution is a violation of law.
ORDER NO. MTNC010303C1
B1
Chassis
AP359
AP359
EP360
EP360
FP360
DP359
DP359
FP360
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Table of Contents
Related Manuals for Panasonic CT-20R6E
Summary of Contents for Panasonic CT-20R6E
- Page 1 ORDER NO. MTNC010303C1 Service Manual Color Television Main Manual (NA7D) Panasonic Models Chassis CT-20R6E AP359 CT-20R6CE AP359 CT-20D11E EP360 CT-20D11DE EP360 CT-2006SE FP360 CT-20G6E DP359 CT-20G6DE DP359 CT-2016SE FP360 This Service manual is issued as a service guide for the models of the NA7D family listed above. Included in this manual are a set of schematics, block diagrams, functional descriptions, alignment procedures, disassembly procedures, and a complete parts list.
- Page 2 Do not use a High Voltage. It should be: line isolation transformer when testing. 26.60±1.25kV for CT-20R6E/CE, CT-20G6E/DE, Leakage Current Cold Check and 27.70±1.25kV for CT-2016SE, Unplug the AC cord and connect a jumper between the CT-2006SE, CT-20D11E/DE two plug prongs.
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Page 3: Table Of Contents
High Voltage Check ....15 CT-20R6E/CE ..... . 46 CT-2016SE, CT-2006SE Purity and Convergence Procedures. -
Page 4: Service Notes
Service Notes Note: These components are affixed with glue. Be careful not to break or damage any 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
HHS Voltage is Equipment needed to check the protection circuit: 33.1KV for CT-2016SE, CT-2006SE, CT-20D11E/ 1. Isolator transformer. DE and 32.4kV for CT-20R6E/CE, CT-20G6E/DE, 2. High voltage meter. at the point set starts to loose sync, 3. Short jumper. - Page 6 Table 1. Receiver Features *Note: When ordering a Board, add and ” S” after the Board suffix application. Example, If Order A-Board for CT-20R6E, should be ordered as: TNP2AH024DBS. Specifications are subject to change without notice or obligation. Dimensions and weights are approximate.
- Page 7 Location of Controls (Receiver) Figure 2. Location of Controls (Receiver). POWER VOLUME CHANNEL ACTION TV/VIDEO Remote Control HPJ & A/V Sensor Jacks (Actual appearance may vary) Quick Reference Control Operation 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 8 Location of Controls (Remote) Power Button Press to turn ON and OFF. Mute Button Press to mute sound. A second press resumes sound. Press also to access and delete Closed Caption display. Volume Buttons Press to adjust TV sound level. Use with Channel buttons to navigate in menus.
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Page 9: Location Of Controls (Remote)
R-Tune (Rapid Tune) Button. Press to switch to the previous channel. Recall Button EUR501450 Press to display Time, status of Sleep CT-20R6E & CT-20R6CE Timer, Channel, Video mode and Channel Caption (Station Identifier). Figure 4. Location of Controls (Remote). - 9 -... -
Page 10: Disassembly For Service
Disassembly for Service Back Cover C-Board - CRT Output Plugs into the socket on the CRT neck. Remove all the screws marked with an arrow( To release the Focus wire, use a flat tool to release from the back of the receiver. See Fig. 8. the tab in the socket, See Fig. -
Page 11: Safety Precautions
CRT Replacement To remove and remount the dag ground braid: a.Unhook the coil spring from the upper right 1. Perform Disassembly for CRT Replacement corner of the CRT. procedure. b.Release the braid loop from the lower left corner 2. Insure that the CRT H.V. Anode button is of the CRT. - Page 12 Back Cover Disassembly Figure 8. Back Cover Removal • 2 Screw at the top edge • 1 Screw in each lower corner • 1 Screw by the A/V Jacks • 1 Screw by the Flyback Assembly. IMPORTANT Screw number and configuration, A/V jacks and connectors may vary according to the model.
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Page 13: Main Components Location
Main Components Location (Secured to Cabinet ANODE (HIGH VOLTAGE) by 4 Screws on Corners) Deflection Yoke Convergence Yoke Yoke Wedge Degaussing Coil Speakers Secured by 2 Screws Chassis Rail (some models) A-Board Tuner S-VHS C-Board Flyback Dag Ground Main Chassis Input JACKS CRT Panel... - Page 14 Main Components Location Q351 GROUND IC001 IC050 RED OUT HALF TONE Socket MPU/VCJ Q352 GREEN OUT Q353 BLUE OUT JK3002 IC002 Front A/V Jacks EEPROM IC003 IC801 IC451 Remote Sensor VCO( ) Vertical Out IC551 Q501 9V REG H. DRIVE IC552 5V REG Q551...
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Page 15: Chassis Service Adjustment Procedures
Source Voltage Chart Voltage is: 120V AC line input. Set the Bright and the Picture to Minimum by using the Picture Menu. Use cold ground CT-20R6E/CE, ) for the (-) lead of the DVM. 26.60kV±1.25kV CT-20G6E/DE (Models with Samsung CRT) - Page 16 Purity and Convergence Procedure Adjustment is necessary only if the CRT or the For a 1-piece assembly (see Fig. 14): deflection yoke is replaced or if the setting was Position like tabs of purity devices together at 12 disturbed. The complete procedure consists of: o’clock to reduce any magnetic field effect.
- Page 17 Initial Center Static Convergence magnet rings to set vertical green raster at center of screen (see Fig. 16). Connect a dot/cross hatch generator to the Receiver Gradually move the deflection yoke & purity rings and tune in a signal. Observe misconvergence at forward and adjust for best overall green screen.
- Page 18 As the yoke is tilted vertically, rasters produced by the outside guns rotate in opposite directions. Figure 17. Vertical Yoke Movement Raster produced from one of the outside electron beams Raster from the other side electron beam R G B Static convergence magnets are set for center convergence As the yoke is tilted horizontally, one...
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Page 19: Exiting The Service Mode
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 control functions are now performed by using “On Screen Display Menu”. (The Service Adjustment Mode.) Note: It is suggested that the technician reads all the way through and understand the following procedure for Entering/Exiting the Service Adjustment Mode;... - Page 20 IMPORTANT Registers marked as FIXED in the following tables, are factory preset, service personnel should not change the default value. 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...
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Page 21: Mts Adjustment
Default Cut-Off Adjustment Adj. Range Level FIXED ACL-REF ACL-REF FIXED To Item C00 ACL-REF FIXED ACL-REF FIXED ACL-REF FIXED FIXED ACL-COEFFICIENT ACL-COEFFICIENT FIXED ACL-COEFFICIENT FIXED ACL-COEFFICIENT FIXED ACL-WAIT FIXED ACL-THRESH FIXED MACROVISION FIXED OSD SELECT FIXED KILLER ON FIXED KILLER OFF FIXED KILLER TIMER FIXED... - Page 22 Default OPTIONS (PICTURE) Adjustment Adj. Range Level VIDEO C FIXED COMB BPF FIXED FIXED COMB 2D COLOR KILLER LEVEL FIXED PLL KILLER TRESH FIXED To Item S00 FIXED ACC SW ACC AMP OFF 1 FIXED ACC AMP OFF 2 FIXED ACC AMP ON FIXED ACC AMP CTL...
- Page 23 Default To Item P00 VCJ Adjustment Adj. Range Level TH OFF3 FIXED TH ON1 FIXED TH ON2 FIXED TH ON3 FIXED FIXED CURVE1 CURVE2 FIXED CURVE3 FIXED RATIO1 FIXED FIXED RATIO2 RATIO3 FIXED Adj. Default Level Adjustment Range W/FM WO/FM AFC T 0 ~ 127 AFC B...
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Page 24: Entering Service Mode
To Check Purity: In Service mode (red “CHK” is displayed), place a jumper in AG connector, press the Recall Button on the Remote Control to enter to the White purity field check, remove the jumper, press Recall again to get to Red, Green and Blue purity fields (If jumper is not removed for color fields, they will be displayed with higher luminosity), In Aging mode ( factory mode , yellow “CHK”... -
Page 25: Sub-Data Adjustment
Instructional Flow Chart for Service Mode IMPORTANT NOTE: 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 26: Cut-Off Adjustment
Instructional Flow Chart for Serviceman Mode - Continued USE VOL TO SET THE VALUE CUT-OFF ADJUSTMENTS. C ITEMS. C ITEMS CUT-OFF ADJUSTMENTS Adj. needed? (ON REMOTE) USE VOL TO SET THE VALUE POWER (ON REMOTE) M ITEMS MTS CIRCUIT ADJUSTMENTS MTS ADJUSTMENTS. -
Page 27: Service Adjustments (Electronic Control)
Service Adjustments (Electronic Controls) Note: Is recommended to allow at 30 min. warm Sub-Brightness up at highest bright (using white screen) before Service DAC (B2) perform any picture adjustment. Due the characteristics of this chassis, Sub-Brightness adjustment is no required. To obtain a good brightness Sub-Contrast level in the picture, set the Service Register to the default level: 127. -
Page 28: Service Adjustments
Service Adjustments (Electronic Controls, cont.) White Balance White Balance (High Lights) Service DACs. (C0) (C1) (C2) (C3) (C4) (C5) 1. Using a Black-White pattern and White screen, adjust Red Drive (C3) and Blue Drive (C5) to Preparation: obtain correct white level on the screen. 1. -
Page 29: Horizontal Centering
Service Adjustments (Electronic Controls, cont.) Sub-Brightness Final adjustment Vertical Size Service DAC (B3) Service DAC (C6) Preparation: Perform this adjustment at the end. After all picture Connect a monoscope pattern. adjustments. Procedure: Preparation: 1. In Service Mode select Vertical Size 1. -
Page 30: Clock Adjustment
Service Adjustments (Electronic Controls, cont.) Stereo Separation Adjustment (M1 & M2) 7. Exit Service Mode. Turn off the set. Remove all connections from chassis. (Stereo Models only) Preparation: Clock Adjustment 1. Connect an RF signal generator to the RF antenna Service DAC (X3) input. -
Page 31: Audio Signal Path Block Diagram
AUDIO SIGNAL PATH BLOCK DIAGRAM Figure 33. Audio Signal Block Diagram - 31 -... -
Page 32: Video Signal Path Block Diagram
VIDEO SIGNAL PATH BLOCK DIAGRAM Figure 34. Video Signal Block Diagram - 32 -... - Page 33 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 34 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 35 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 36 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 37 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 38 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 39 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 40 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 41 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 42 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 43 REPLACEMENT PARTS LIST Models: CT-20R6E, CT-20R6CE, CT-2016SE, CT-2006SE, CT-20G6E, CT-20G6DE, CT-20D11E, CRT-20D11DE 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.
- Page 44 General Notes DESCRIPTION OF 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 +/- 5% Tantalum...
- Page 45 C- Board Schematic & Voltages - Diagrama Eléctrico y Voltajes Tarjeta C ALL MODELS Q351 Q352 Q353 Q353 7.47 7.40 3.35 7.40 96.00 98.20 157.55 98.80 7.00 6.90 3.13 6.90 IDENTIFICACIÓN DE TERMINALES CHIP TRANSISTOR PARA TRANSISTORES EN CHIP LEAD DESIGNATION Q354 Q355 Q353...
- Page 46 CT-20R6E/CE A Board Schematic, Left Portion - Diagrama Eléctrico de la Tarjeta A, Sección Izquierda - 46 -...
- Page 47 A Board Schematic, Right Portion - Diagrama Eléctrico de la Tarjeta A, Sección Derecha CT-20R6E/CE IMPORTANT SAFETY NOTICE THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL FEATURES THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING IT IS...
- Page 48 CT-2016SE, CT-2006SE, CT-20G6E/DE A Board Schematic, Left Portion - Diagrama Eléctrico de la Tarjeta A, Sección Izquierda 6.3A 125V - 48 -...
- Page 49 A Board Schematic, Right Portion - Diagrama Eléctrico de la Tarjeta A, Sección Derecha CT-2016SE, CT-2006SE, CT-20G6E/DE IMPORTANT SAFETY NOTICE THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL FEATURES THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS DESIGNATED WITH A THE SCHEMATIC.
- Page 50 CT-20D11E, CT-20D11DE A Board Schematic, Left Portion - Diagrama Eléctrico de la Tarjeta A, Sección Izquierda 6.3A 125V - 50 -...
- Page 51 A Board Schematic, Right Portion - Diagrama Eléctrico de la Tarjeta A, Sección Derecha CT-20D11E, CT-20D11DE IMPORTANT SAFETY NOTICE THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL FEATURES THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS DESIGNATED WITH A THE SCHEMATIC.
- Page 52 ALL MODELS A Board PCB Layout - Diagrama Impreso de la Tarjeta A, NOTA DE SEGURIDAD LOS DIAGRAMAS ELÉCTRICOS INCLUYEN CARACTERÍSTICAS ESPECIALES MUY IMPORTANTES PARA LA PROTECCIÓN CONTRA RAYOS-X, QUEMADURAS DESCARGAS ELÉCTRICAS. CUANDO SE DE SERVICIO ES IMPORTANTE USAR PARA REEMPLAZO DE COMPONENTES CRITICOS, SOLO PARTES ESPECIFICADAS POR EL FABRICANTES.
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Page 53: Important Safety Notice
A - Board Voltages - Voltajes Tarjeta A ALL MODELS IC001 IC002 IC451 IC2201 Q001 Q006 Q007 Q008 Q005 Q009 CHIP TRANSISTOR ..0.00 ..GND ..GND . - Page 54 ALL MODELS A Board Waveforms - Formas de Onda de la Tarjeta A All Models -- To- dos los Modelos NOTA DE SEGURIDAD LOS DIAGRAMAS ELÉCTRICOS INCLUYEN CARACTERÍSTICAS ESPECIALES MUY IMPORTANTES PARA LA PROTECCIÓN CONTRA RAYOS-X, QUEMADURAS DESCARGAS ELÉCTRICAS. CUANDO SE DE SERVICIO ES IMPORTANTE USAR PARA REEMPLAZO DE COMPONENTES CRITICOS, 1.3V p-p [20µs] 1.40V p-p [20µs]...
- Page 55 - 55 -...
- Page 56 Printed in USA K01032593CM0319...