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Main Manual (NA6DV) Panasonic Models Chassis CT-20SX11E AP380 CT-20SX11CE AP380 This Service manual is issued as a service guide for the models of the NA6DV 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.
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.
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. Leadless Chip Component How to Replace Flat-IC (surface mount)
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Service Notes (Continued) IMPORTANT: To protect against possible damage to WARNING: This Receiver has been designed to meet the solid state devices due to arcing or static or exceed applicable safety and X-ray radiation discharge, make certain that all ground wires and CTR protection as specified by government agencies and DAG wire are securely connected.
Location of Controls (Receiver) Remote Control Sensor Figure 2. Location of Controls (Receiver). 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.
Location of Controls (Remote) LIGHT Button Power Button Press to light remote control buttons. Press to turn ON and OFF. TV/VIDEO Button ACTION Button Press to select TV or Video input. Press to display Main Menu and access or exit On Screen features CH (channel) Buttons and Adjustment Menus.
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 and the CRT 2nd anode button from screws vary depending on the model of the...
Chassis Service Adjustment Procedures All service adjustments are factory preset and should not require adjustment unless controls and/or associated components are replaced. Note: Connect the (-) lead of the voltmeter to the appropriate ground. Use IC803’s heat sink when the HOT ground symbol ( ) is used.
Purity and Convergence Procedure Adjustment is necessary only if the CRT or the For a 1-piece assembly (see Fig. 8): 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.
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Initial Center Static Convergence Slowly move the deflection yoke and purity rings assembly toward the CRT board and adjust the purity Connect a dot/cross hatch generator to the Receiver magnet rings to set vertical green raster at center of and tune in a signal. Observe misconvergence at screen (see Fig.
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As the yoke is tilted vertically, the rasters produced outside guns rotate in opposite directions. Figure 11. 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 raster gets larger while the other gets...
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;...
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. 14 ) for Remote Control to adjust the each address...
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 value set (b in Fig. 14 ) for Remote Control to select one of Remote Control to adjust the the available Service Adjustments each...
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. 14 ) for Remote Control to adjust the the available Service Adjustments each...
To Check Purity: Press the Recall Button on the Remote Control when in Service Mode (red “CHK” is displayed) to enter the Purity Field Check Mode. NORMAL SCREEN Press Recall again to select desired field. BLUE GRN. WHITE SCREEN SCREEN SCREEN SCREEN Figure 15.
Instructional Flow Chart for Service Mode IMPORTANT NOTE: Always Exit the Service Mode Following Adjustments. NORMAL MODE Momentary short FA1 to FA2 ( AGING MODE • Yellow “CHK” appears in upper left corner of screen. WHITE • Volume Up/Down operate rapidly. SCREEN •...
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Instructional Flow Chart for Service Mode - Continued LOUDNESS COMPENSATION (ON REMOTE) VCJ TEST PIP TINT CUT-OFF ADJUSTMENTS. BEAM LIMIT CLOCK C ITEMS. ADJUSTMENT HORIZ CENTER FREERUN YNR VID ADJ Adj. RIGHT 1/16 RF-AGC needed? LEFT 1/16 DOWN 1/16 YNR SWITCH UP 1/16 (ON REMOTE) DRIVE B...
Service Adjustments (Electronic Controls) Sub-Brightness Preparation: 1. Apply a color bar signal pattern with 87.5% Service DAC Adjustment (B2) modulation, 70% saturated color bar with a 100 Adjustment of this control is important for setting proper IRE white and 7.5 black. operation of customer brightness and picture controls.
Service Adjustments (Electronic Controls, cont.) Procedure: 1. Connect the oscilloscope to C1-2 (CRT-Board). 2. In Service Mode for making electronic adjustment, 1. In the Service Mode for making electronic select the Sub-Bright DAC (B2). adjustments, select DAC Sub-Tint Adjustment 3. Press the R-Tune key on the remote. (B1).
Service Adjustments (Electronic Controls, cont.) 20. In the Service Mode for making electronic MTS Circuit Adjustments adjustments select the DAC DRIVE adjustments The MTS Circuit Adjustments require two steps: (C3) RED, (C4) BLUE and adjust for warm white in 1. Input Level Adjustment. a white color bar pattern.
Clock Adjustment (Sb) 5. Calculate based following formula: Preparation: Connect the frequency counter from TPS1 (IC001 244.1406 pin 13 Hz – ×10 0.901 ----------------------------------------------------------------- - Pin 13) to cold ground ( 244.1406 Note: Frequency Counter probe capacitance should be 8pF or less. Note: Pin measurement will...
Identification of Components 2 screws at the top edge of the receiver 1 screw at the lower 1 screw at the lower edge of the receiver edge of the receiver 1 screw by the 1 screw by the flyback assembly A/V jacks Figure 28.
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Identification of Components CRT (secured to cabinet by 4 screws on corners of CRT) Anode (high voltage) Yoke Speaker Bracket (2 screws) C board Speaker (4 screws) Degaussing coil Tuner A/V jacks Flyback (T551) Note: After servicing receiver, remember to dress the cables, as shown. Figure 29.
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Identification of Components Q551 T551 H. OUT KEYPAD IC451 V. OUT IC803 POWER S. F801 IC003 FUSE SENSOR IC2321 AUDIO IC2302 AUDIO AMP IC6501 IC002 IC101 IC001 TNR001 COMB FILTER EEPROM TUNER Figure 30. A-Board Main Components - 29 -...
REPLACEMENT PARTS LIST Model:CT-20SX11E/CE 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. PART NO. DESCRIPTION C604...
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REPLACEMENT PARTS LIST Model:CT-20SX11E/CE 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. PART NO. DESCRIPTION C6517...
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REPLACEMENT PARTS LIST Model:CT-20SX11E/CE 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. PART NO. DESCRIPTION IC6502...
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REPLACEMENT PARTS LIST Model:CT-20SX11E/CE 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. PART NO. DESCRIPTION R035 ERJ6GEYJ332V RES,M 3.3K-J-1/10W...
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REPLACEMENT PARTS LIST Model:CT-20SX11E/CE 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. PART NO. DESCRIPTION R559...
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REPLACEMENT PARTS LIST Model:CT-20SX11E/CE 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. PART NO. DESCRIPTION R6503...
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C-BOARD SCHEMATIC,LAYOUT & VOLTAGES--DIAGRAMA ELECTRICO Y VOLTAJES TARJETA C ALL MODELS IDENTIFICACIÓN DE TERMINALES CHIP TRANSISTOR PARA TRANSISTORES EN CHIP LEAD DESIGNATION Nota: Note: Q351 La medición de los voltajes se Obtained voltages with a 3.23 hizo con un Voltímetro Digital. multimeter.
A-BOARD SCHEMATIC RIGHT PORTION -- DIAGRAMA ELECTRICO TARJETA A SECCION DERECHA ALL MODELS 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.
ALL MODELS Z-BOARD SCHEMATIC,LAYOUT & VOLTAGES -- DIAGRAMA ELECTRICO,CIRCUITO IMPRESO Y VOLTAJES TARJETA Z 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.