Panasonic CT-27E13-1G Service Manual
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Panasonic CT-27E13-1G Service Manual

Panasonic CT-27E13-1G Service Manual

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MTNC030313A1
B5
Color Television
CT-27E13-1G / CT-27E13-1UG / CT-32E13-1G / CT-32E13-
1UG
NA8
This simplified service manual is issued to add listed models to the
simplified service manual order No. MTNC000417C1 (CT-27D10B).
1

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  • Page 1 MTNC030313A1 Color Television CT-27E13-1G / CT-27E13-1UG / CT-32E13-1G / CT-32E13- This simplified service manual is issued to add listed models to the simplified service manual order No. MTNC000417C1 (CT-27D10B).
  • Page 2 service manual oder No. MTNC000417C1(CT-27D10B) . Copyright 2003 Matsushita Electric Corporation of America. All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 3: General Guidelines

    1. Safety Precautions 1.1. General Guidelines An isolation transformer should always be used during the servicing of a receiver whose chassis is not isolated from AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in capacitors, andshieldsafter servicing the receiver.

  • Page 4: Leakage Current Hot Check (Fig. 1)

    terminals, control shafts, etc. If the exposed metallic part has a returnpathto the chassis, the reading should be between 240k and 5.2M . If the exposed metallic part does not have a return path to the chassis, the reading should be infinite. 1.3.
  • Page 5 environmental conservation issues. For service and repair work, we’dsuggestthe use of Pb free solder as well, although Pb solder may be used. PCBs manufactured using lead free solder will have the “PbF” or a leaf symbol stamped on the back of PCB. Caution - Pb free solder has a higher melting point than standard solder.

  • Page 6: Service Notes

    3. 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 IC’s when removing. Usually applying heat to the component for a short time while twisting with tweezers will breakthecomponent loose. 3.1.
  • Page 7 tweezers or with a miniature alligator clip and apply heat to the pad area with a 30 watt iron until solder flows. Do not apply heat for more than 3 seconds. 3.4. How to replace Flat IC (required tools) 1. Remove the solder from all of the pins of a Flat IC by using a desolder braid.
  • Page 8 4. Position the new Flat IC in place (apply the pins of the Flat IC to the soldering pads where the pins need to be soldered). Properly determine the positions of the soldering pads and pins by correctly aligning the polarity symbol. 5.
  • Page 9 chassis. Connect the test equipment to the proper ground(HOT or COLD ) when servicing, or incorrect voltages will be measured. WARNING This receiver has been designed to meet or exceed applicable safety and x ray radiation protection as specified by government agencies and independent testing laboratories.

  • Page 10: Receivers Feature Table

    If the high voltage is not within the specified limit, the cause must be determined and corrected before the receiver is returned to the customer. 4. Receivers Feature Table FEATURE MODEL CT-27E13-1G/UG CT-32E13-1G/UG Chassis SP338 TP341...

  • Page 11: Board Description

    PINCUSHION CIRCUIT Note:When ordering a replacement board assembly, append an “S” to the board number. / Example: To order the A-Board for CT-27E13-1G, the replacement board is TNP2AH017AKS. 5. Location of Controls (Receiver) Fig. 2 Location of Controls in the Receiver.
  • Page 12 6. Location of Controls (Remote) Fig.3 Location of controls in remote (EUR7613Z60).
  • Page 13 7. Dissasembly for Service (Back Cover) Fig. 4 Back Cover Removal.

  • Page 14: Location Of Components

    8. Location of Components Fig. 5 Location of components.
  • Page 15 9. Replacement Parts List 9.1. Parts List Notes...
  • Page 16 ECA0JM101B CAP,E 100UF-6.3V C016 TCJ2VC1H101J CAP,C 100PF-J-50V C017 TCJ2VC1H270J CAP,C 27PF-J-50V C018 TCJ2VC1H270J CAP,C 27PF-J-50V C020 ECA0JM102B CAP,E 1000UF-6.3V CT-32E13-1G CT-32E13-1UG C020 ECA0JM331B CAP,E 330UF-6.3V / CT-27E13-1G CT-27E13-1UG C021 TCJ2VF1H103Z CAP,C .01UF-Z-50V C022 ECA1EM471B CAP,E 470UF-25V C024 ECA1HM4R7B CAP,E 4.7UF-50V...
  • Page 17 Ref. No. Part No. Part Name & Description Remarks C025 ECA1HM010B CAP,E 1UF-50V C026 ECA1HM010B CAP,E 1UF-50V C032 ECA1CM331B CAP,E 330UF-16V C033 TCJ2VC1H680J CAP,C 68PF-J-50V C034 TCJ2VC1H680J CAP,C 68PF-J-50V C043 ECA1HM2R2B CAP,E 2.2UF-50V C044 TCJ2VF1H103Z CAP,C .01UF-Z-50V C047 ECA0JM102B CAP,E 1000UF-6.3V C048 TCJ2VF1H103Z CAP,C .01UF-Z-50V...
  • Page 18 CAP,C 560PF-K-500V C562 ECKR2H561KB5 CAP,C 560PF-K-500V C563 ECWH12H133JS CAP,P .013UF-J-1.2KV / CT-32E13-1G CT-32E13-1UG C563 ECWH12H822JS CAP,P .0082UF-J-1.2KV / CT-27E13-1G CT-27E13-1UG C564 ECWH12H122JS CAP,P .0012UF-J-1.2KV / CT-32E13-1G CT-32E13-1UG C564 ECWH12H272JS CAP,P .0027UF-J-1.2KV / CT-27E13-1G CT-27E13-1UG C565 ECKW3D122JBR CAP,C 1200PF-J-2KV / CT-27E13-1G CT-27E13-1UG...
  • Page 19 ECKWAE472ZED CAP,C 4700PF-Z-500V C803 ECKWAE472ZED CAP,C 4700PF-Z-500V C804 ECKWAE472ZED CAP,C 4700PF-Z-500V C805 EC0S2DA221BB CAP,E 220UF/200V / CT-27E13-1G CT-27E13-1UG C805 EC0S2DA331BB CAP,E 330UF/200V / CT-32E13-1G CT-32E13-1UG C806 EC0S2DA221BB CAP,E 220UF/200V / CT-27E13-1G CT-27E13-1UG C806 EC0S2DA331BB CAP,E 330UF/200V / CT-32E13-1G CT-32E13-1UG C807 ECA1HM2R2B CAP,E 2.2UF-50V...
  • Page 20 Ref. No. Part No. Part Name & Description Remarks C2326 TCJ2VB1H223K CAP,C .022UF-K-50V C2327 TCJ2VB1H223K CAP,C .022UF-K-50V C2328 TCJ2VB1H223K CAP,C .022UF-K-50V C2329 TCJ2VB1H223K CAP,C .022UF-K-50V C2331 ECA1HM010B CAP,E 1UF-50V C2333 ECA1HM010B CAP,E 1UF-50V C2339 ECA1HM010B CAP,E 1UF-50V C2340 ECA1HM010B CAP,E 1UF-50V C2342 ECA1CM470B CAP,E 47UF/16V...
  • Page 21 Ref. No. Part No. Part Name & Description Remarks C6516 TCJ2VF1H103Z CAP,C .01UF-Z-50V C6517 ECEA1HN010UB CAP,E 1UF/50V C6518 TCJ2VF1H103Z CAP,C .01UF-Z-50V C6520 ECA1CM100B CAP,E 10UF-16V C6521 ECA1AM470B CAP,E 47UF-10V C6522 TCJ2VC1H221J CAP,C 220PF-J-50V C6523 TCJ2VF1H104Z CAP,C .1UF-Z-50V C6524 ECA1HM010B CAP,E 1UF-50V C6525 TCJ2VF1H103Z CAP,C .01UF-Z-50V...
  • Page 22 D820 EU02V1 DIODE Ref. No. Part No. Part Name & Description Remarks D821 EU02V1 DIODE D822 EU02V1 DIODE D823 RL30A DIODE D824 EU02V1 DIODE D825 B0ZAZ0000045 DIODE, PROTECTION D826 EU02V1 DIODE D829 MA2C165001VT DIODE, SWITCHING D830 MAZ42700MF DIODE, ZENER D2301 MA2C165001VT DIODE D2305...
  • Page 23 COIL, PEAKING 3.3UH L518 ELESN120JA COIL, PEAKING 12UH L541 EXCELDR35V FERRITE BEAD L542 EXCELSA39V FERRITE BEAD L551 ELH5L7103 COIL, HORIZ. LINEARITY / CT-27E13-1G CT-27E13-1UG L551 ELH5L7115 COIL, HORIZ. LINEARITY / CT-32E13-1G CT-32E13-1UG L554 EXCELSA24T FERRITE BEAD L555 EXCELSA24T FERRITE BEAD L556 EXCELSA24T...
  • Page 24 Ref. No. Part No. Part Name & Description Remarks Q005 2SD601ARTX TRANSISTOR Q201 2SD601ARTX TRANSISTOR Q303 2SD601ARTX TRANSISTOR Q351 2SC3063RL TRANSISTOR Q352 2SC3063RL TRANSISTOR Q353 2SC3063RL TRANSISTOR Q401 2SD601ARTX TRANSISTOR Q402 2SD601ARTX TRANSISTOR Q501 2SC4212HLB TRANSISTOR Q509 2SD601ARTX TRANSISTOR Q515 2SD601ARTX TRANSISTOR Q551...
  • Page 25 R015 ERJ6GEYJ472V RES,M 4.7K-J-1/10W...
  • Page 26 RES,M 330-J-1/10W R303 ERJ6GEYJ331V RES,M 330-J-1/10W R306 ERJ6GEYJ103V RES,M 10K-J-1/10W R310 ERJ6GEYJ332V RES,M 3.3K-J-1/10W R312 ERJ6GEYJ393V RES,M 39K-J-1/10W R328 ERJ6GEYJ105V RES,M 1M-J-1/10W R341 ERJ6GEYJ393V RES,M 39K-J-1/10W / CT-27E13-1G CT-27E13-1UG R341 ERJ6GEYJ474V RES,M 470K-J-1/10W / CT-32E13-1G CT-32E13-1UG R351 ERG2FJ123H RES,M 12K-J-2W...
  • Page 27 ERJ6GEYJ471V RES,M 470-J-1/10W R509 ERJ6GEYJ221V RES,M 220-J-1/10W R510 ERG3FJ202H RES,M 2K-J-3W / CT-32E13-1G CT-32E13-1UG R510 ERG3FJ222H RES,M 2200-J-3W / CT-27E13-1G CT-27E13-1UG R511 ERG3FJ202H RES,M 2K-J-3W / CT-32E13-1G CT-32E13-1UG R511 ERG3FJ272H RES,M 2.7K-J-3W / CT-27E13-1G CT-27E13-1UG R512 ERG2FJ392H RES,M 3.9K-J-2W R513...
  • Page 28 R514 ERJ6GEYJ102V RES,M 1K-J-1/10W / CT-32E13-1G CT-32E13-1UG...
  • Page 29 Ref. No. Part No. Part Name & Description Remarks R514 ERJ6GEYJ152V RES,M 1.5K-J-1/10W / CT-27E13-1G CT-27E13-1UG R515 ERJ6GEYJ562V RES,M 5.6K-J-1/10W R516 ERJ6GEYJ272V RES,M 2.7K-J-1/10W R517 ERJ6GEYJ181V RES,M 180-J-1/10W R531 ERD25FJ470P RES,C 47-J-1/4W R532 ERJ6ENF5362V RES,M 53.6K-F-1/10W / CT-32E13-1G CT-32E13-1UG R532...
  • Page 30 R806 ERDS2TJ274T RES,C 27K-J-1/4W...
  • Page 31 RES,C 2.7K-J-1/2W R812 ERDS1TJ183T RES,C 18K-J-1/2W R813 ERJ6GEYJ562V RES,M 5.6K-J-1/10W R815 ERC12ZGK825D RES,C 8.2MEG-K-1/2W / CT-32E13-1G CT-32E13-1UG R815 ERC12ZGM825D RES,S 8.2MEG-M-1/2 / CT-27E13-1G CT-27E13-1UG R818 ERQ12HJR56P RES,F .56-J-1/2W R820 ERJ6GEYJ273V RES,M 27K-J-1/10W R821 ERJ6GEYJ392V RES,M 3.9K-J-1/10W R822 ERD50FJ474P RES,C 470K-J-1/2W...
  • Page 32 Ref. No. Part No. Part Name & Description Remarks R2346 ERJ6GEYJ471V RES,M 470-J-1/10W R2350 ERJ6GEYJ682V RES,M 6.8K-J-1/10W R2351 ERJ6GEYJ105V RES,M 1M-J-1/10W R2352 ERJ6GEYJ105V RES,M 1M-J-1/10W R2353 ERJ6GEYJ101V RES,M 100-J-1/10W R2355 ERJ6GEYJ682V RES,M 6.8K-J-1/10W R2418 ERJ6GEYJ471V RES,M 470-J-1/10W R2419 ERJ6GEYJ471V RES,M 470-J-1/10W R3001 ERJ6GEYJ101V RES,M 100-J-1/10W...
  • Page 33 DEFLECTION YOKE / CT-32E13-1G CT-32E13-1UG M005 JH291U-009 YOKE, CONVERGENCE M006 TMM2A30702 WEDGE, YOKE TLK2AA0011 COIL, DEGAUSSING 27 INCH / CT-27E13-1G CT-27E13-1UG TSP2AA007 COIL, DEGAUSSING 32 INCH / CT-32E13-1G CT-32E13-1UG M007 0FMK014ZZ CONVERGENCE CORRECTOR STRIP M008 TXF3A011EV ASSY., DAG GND / CT-27E13-1G CT-27E13-1UG...
  • Page 34 Remarks M009 TXF3A01AFRA ASSY., DAG GND / CT-32E13-1G CT-32E13-1UG M010 TSN63115-4 MAGNET, PURITY M011 TAS2AA0015 SPEAKER 8 OHM 5W / CT-27E13-1G CT-27E13-1UG M012 TAS2AA0016 SPEAKER 8 OHM 5W / CT-32E13-1G CT-32E13-1UG M013 TBM2AA0023 BADGE, PANASONIC / CT-32E13-1G CT-32E13-1UG M014 TBM2A10143...
  • Page 35 ORDER NO. MTNC000417C1 Color Television Main Manual (NA8) Panasonic Models Chassis CT-27D10B AP338 CT-27D10UB AP338 CT-27D10DB AP338 This Service manual is issued as a service guide for the models of the NA8 family listed above. Included in this manual are a set of schematic, block diagrams, functional descriptions, alignment procedures, disassembly procedures, and a complete parts list.

  • Page 36: 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 37: Table Of Contents

    Important Safety Notice ....2 Service Adjustments (Electronic Control)....24 Safety Precautions .

  • Page 38: 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. Leadless Chip Component How to Replace Flat-IC (surface mount)

  • Page 39: Horizontal Oscillator Disable Circuit

    Service Notes (Continued) IMPORTANT: To protect against possible damage to Procedure: the solid state devices due to arcing or static discharge, 1. Tune in a station to verify that the horizontal is make certain that all ground wires and CTR DAG wire in sync.

  • Page 40: Receivers Feature Table

    Receiver Feature Table FEATURE\MODEL CT-27D10B/UB CT-27D10DB Chassis Tunning system # of channels Menu language Eng/Span/Fr Eng/Span/Fr Closed Caption V-Chip 75 Ω input Remote Model # EUR511502 EUR511502 Picture tube M68LGL061X M68LGL061X Black Face Regular Tube Comb Filter 3 Line Digital 3 Line Digital H.

  • Page 41: Location Of Controls (Receiver)

    Location of Controls (Receiver) Remote Control Front A/V Input 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.

  • Page 42: Location Of Controls (Remote)

    Location of Controls (Remote) EMOTE ONTROL LIGHT POWER Press to light remote control buttons. Press to turn ON and OFF. Presione para iluminar los botones del Presione para ENCENDER y APAGAR. control remoto. Appuyer pour établir ou couper le contact. Appuyer pour éclairer les touches de la télécommande.

  • Page 43: 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 and the CRT 2nd anode button from...

  • Page 44: Chassis Service Adjustment Procedures

    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.

  • Page 45: Purity And Convergence Procedures

    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.

  • Page 46: Initial Center Static Convergence

    Initial Center Static Convergence Final Convergence Procedure (see Fig. 11 Connect a dot/cross hatch generator to the Receiver through Fig. 13): and tune in a signal. Observe misconvergence at Note: Vertical size and focus adjustments must be center of the screen only. completed prior to performing the convergence Adjust the R&B pole magnets;...
  • Page 47 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...

  • Page 48: Serviceman Mode (Electronic Controls)

    Serviceman 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 Serviceman Adjustment Mode.) Note: It is suggested that the technician reads all the way through and understand the following procedure for Entering/Exiting the Serviceman Adjustment Mode;...
  • Page 49 Press the Power Button on the Remote Control to select the Serviceman 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...
  • Page 50 Press the Power Button on the Remote Control to select the Serviceman 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...
  • Page 51 Press the Power Button on the Remote Control to select the Serviceman 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...
  • Page 52 Press the Power Button on the Remote Control to select the Serviceman Adjustment 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...
  • Page 53 Press the Power Button on the Remote Control to select the Serviceman 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...

  • Page 54: Entering Serviceman Mode

    To Check Purity: Press the Recall Button on the Remote Control when in Serviceman 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.

  • Page 55: Instructional Flow Chart For Serviceman Mode

    Instructional Flow Chart for Serviceman Mode IMPORTANT NOTE: Always Exit the Serviceman 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 56: Cut-Off Adjustment (C)

    Instructional Flow Chart for Serviceman 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) PINCUSHION ADJUSTMENTS. D ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? IMPORTANT NOTE:...

  • Page 57: Pip Adjustment (P)

    Instructional Flow Chart for Serviceman Mode - Continued PIP ADJUSTMENTS. P ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL POWER (ON REMOTE) OPTIONS ADJUSTMENTS. S ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST...

  • Page 58: Service Adjustments

    Service Adjustments (Electronic Controls) Sub-Brightness Procedure: 1. In the Serviceman Mode, select DAC Sub- Serviceman DAC Adjustment (B2) Brightness Adjustment (B2) and adjust for 1.5- Adjustment of this control is important for setting proper 1.9Vp-p between blanking and 7.5 IRE level. (See operation of customer brightness and picture controls.

  • Page 59: Color Temperature Adjustment

    Service Adjustments (Electronic Controls, cont.) Color Temperature Adjustment 8. View scope trace at Horizontal rate and adjust the Serviceman Mode DAC (C0) level until a scanning (B/W Tracking) period of 195V above DC ground is measured, as indicated in Fig. 23. Serviceman DAC Adjust.

  • Page 60: Horizontal Centering

    Service Adjustments (Electronic Controls, cont.) Horizontal Centering Stereo Separation Adjustment (M1 & M2) Preparation: Serviceman DAC Adjustment (D0) 1. Connect an RF signal generator to the RF antenna Preparation: input. Connect a monoscope pattern generator. Procedure: 2. Connect a scope to TPE10. 1.

  • Page 61: Clock Adjustment (S7)

    Service Adjustments (Electronic Controls, cont.) Clock Adjustment (S7) 5. Calculate based following formula: Preparation: Connect the frequency counter from TPS1 (IC001 244.1406 pin13 Hz – ×10 0.901 ----------------------------------------------------------------- - Pin 13) to cold ground ( 244.1406 Note: Frequency Counter probe capacitance should be 8pF or less.

  • Page 62: Audio Signal Path Block Diagram

    Audio Signal Path Block Diagram Figure 25. Audio Signal Path Block Diagram. - 28 -...

  • Page 63: Video Signal Path Block Diagram

    Video Signal Path Block Diagram Figure 26. Video Signal Path Block Diagram. - 29 -...

  • Page 64: Video-Chroma Signal Path Block Diagram

    Video-Chroma Signal Path Block Diagram Figure 27. Video-Chroma Path Block Diagram.. - 30 -...
  • Page 65 IC101 IN/OUT Pins and Functions (VCJ) IC101 TA1310BN Verocity Scanning DC RC 56 DC Restoration Correction VSM Out Modulation Ground BP DET 55 Black Peak Detection Red Input Y In 54 Luminance Signal Input R In Green Input R-Y Input G In B-Y In Blue Input...

  • Page 66: Ic001 In/Out Pins And Functions (Mpu)

    IC001 IN/OUT Pins and Functions (MPU) IC001 MN101C46FTA3 VSS 42 Remote signal in RMIN OSC1 41 SDA1 14.32MHz X-tal OSC2 40 SCL1 14.32MHz X-tal VDD (VPP) 39 AFC1 ADIN0 +3.3V P42 38 AFC2 ADIN1 SCL0 SDA0 Key Scan 1 ADIN2 Not used/open Action ADIN3...

  • Page 67: Component Identification

    Component Identification 1 Screw 1 Screw 1 Screw 1 Screw 1 Screw 1 Screw 1 Screw 1 Screw Figure 30. Cabinet Back - 33 -...
  • Page 68 Component Identification Anode (High Voltage) CRT (Secured by 4 screws) Deflection yoke Degaussing Coil Yoke wedge Speaker Speaker VAO out Tuner T551 Flyback A/V Jacks S-VHS Input Figure 31. Rear View Note: After servicing the receiver, remember to dress the cables, as shown above. - 34 -...
  • Page 69 Component Identification A/V front inputs Front keypad IC001 MPU IC2302 IC 451 RL801 IC002 Q501 H-Drive IC6501 IC803 Tuner Q551 Fuse IC101 VCJ IC3001 IC2351 T551 Flyback A/V Jacks S-VHS Input Audio out Figure 32. A-Board CRT Socket Figure 33. C-Board - 35 -...

  • Page 70: Replacement Parts List

    REPLACEMENT PARTS LIST Models: CT-27D10B, CT-27D10UB & CT-27D10DB 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.
  • Page 71 REPLACEMENT PARTS LIST Models: CT-27D10B, CT-27D10UB & CT-27D10DB 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.
  • Page 72 REPLACEMENT PARTS LIST Models: CT-27D10B, CT-27D10UB & CT-27D10DB 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.
  • Page 73 REPLACEMENT PARTS LIST Models: CT-27D10B, CT-27D10UB & CT-27D10DB 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.
  • Page 74 REPLACEMENT PARTS LIST Models: CT-27D10B, CT-27D10UB & CT-27D10DB 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.
  • Page 75 REPLACEMENT PARTS LIST Models: CT-27D10B, CT-27D10UB & CT-27D10DB 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.
  • Page 76 RES,M 5.6K-J-1/10 M004 M68LGL061X CRT 27 R6524 ERJ6GEYJ471 RES,M 470-J-1/10 M005 TAS2AA0015 SPEAKER 8-OHM 5W R6526 ERJ6GEYJ102 RES,M 1K-J-1/10 M006 TBM2A10141 BADGE, PANASONIC R6531 ERJ6GEYJ182 RES,M 1.8K-J-1/10 M007 TJS2AC00301 CRT SOCKET R6535 ERJ6GEYJ181 RES,M 180-J-1/10 M008 TKX2AA00401 GUIDE, IR R6537 ERJ6GEYJ392 RES,M 3.9K-J-1/10...

  • Page 77: Description Of Abbreviations Guide

    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 +/- 10%...
  • Page 78 NOTES - 44 -...
  • Page 79 NOTES - 45 -...
  • Page 80 NOTES - 46 -...
  • Page 81 SERVICEMAN MODE (ELECTRONIC CONTROL) SERVICE ADJUSTMENT VALUES Model _____________________________________________ Ser #_____________ Date_________________ Note: Record the original settings PRIOR to modifying the registers. Service Def. Original Service Def. Original Mode Mode Adjustment Val. Value Value Adjustment Val. Value Value Sub Adjustments Pin Cushion Adjustments SUB COLOR H POSITION...
  • Page 82 SERVICEMAN MODE (ELECTRONIC CONTROL) SERVICE ADJUSTMENT VALUES Model _____________________________________________ Ser #_____________ Date_________________ Note: Record the original settings PRIOR to modifying the registers. Service Def. Original Service Def. Original Mode Mode Adjustment Val. Value Value Adjustment Val. Value Value Options Adjustments Comb Filter Adjustments ABL GAIN CLIP LEVEL...

  • Page 83: Color Television

    ORDER NO. MTNC010527C1 Service Manual Color Television Main Manual (NA8MS) Panasonic Models Chassis CT-27SX11E AP368 CT-27SX11UE AP368 CT-27SX11CE AP368 CT-27SX31E EP368 CT-27SX31UE EP368 CT-27SX31CE EP368 This Service manual is issued as a service guide for the models of the NA8MS family listed above. Included in this manual are a set of schematic, block diagrams, functional descriptions, alignment procedures, disassembly procedures and a complete parts list.
  • Page 84 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 85 Important Safety Notice ....2 Instructional Flow Chart for Service Mode ..... . . 27 Safety Precautions .

  • Page 86: 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. Leadless Chip Component How to Replace Flat-IC (surface mount)
  • Page 87 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.

  • Page 88: Receiver Feature Table

    Receiver Feature Table FEATURE\MODEL CT-27SX11E/UE/CE CT-27SX31E/UE/CE Chassis NA8MS Tunning system # of channels Menu language Eng/Span/Fr Closed Caption V-Chip (USA/CANADA) Picture in Picture 75Ω Ω Ω Ω input Remote Model # EUR511502 EUR511500 Picture tube PF 4:3 Picture tube Supplier Samsung Comb Filter 3 DIG...

  • Page 89: Location Of Controls (Receiver)

    Location of Controls (Receiver) Front A/V Jacks (Inside Control Panel) POWER VOLUME CHANNEL ACTION TV/VIDEO 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.

  • Page 90: Location Of Controls (Remote)

    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. VCR, DVD, LD/CD, AUX, TV, CBL, DBS, RCVR Component function buttons VOL (volume) Buttons Press to adjust TV sound level.

  • Page 91: Disassembly For Service

    Disassembly for Service Back Cover Speakers Speakers are assembled to the speaker dome with Remove all the screws marked with an arrow( 4 screws. The speaker/Dome assy is secured to from the back of the Receiver. the Speaker Bracket (horn) with 2 screws. Note: Screw configuration, type, and number of screws vary depending on the model of the Receiver serviced and...
  • Page 92 Disassembly for Service (Continued) Note: To remove the four brackets holding To remove and remount the dag ground braid: a.Unhook the coil spring from the bottom corners the degauss coil from the corners of of the CRT ears. the CRT, first remove the CRT from b.Release the braid loop from the upper corners of the cabinet, then remove the Brackets the CRT ears.

  • Page 93: Back Cover Removal

    Back Cover Removal • 3 screws at the top edge of the Receiver. • 2 screw by the A/V jacks. • 1 screw by the antenna jacks. • 1 screw at each lower corner of the Receiver. • 1 screw by the retainer plate of the AC power cord. •...

  • Page 94: Rear View

    Rear View Wedge Yoke Geo-magnetic Coil CRT Anode, HV Deflection Yoke Speaker C-Board Bracket Speaker Dome Speaker Degauss Coil S-Board (Some Models) S-Board RF Splitter Rear AV Jacks P-Board (Some Models) Note: After servicing the receiver, remember to dress the cables, as shown above. - 12 -...

  • Page 95: Main Components Location

    Main Components Location Main Chassis IC003 Front AV Jacks Keypad Remote Sensor IC002 IC551 EEPROM 9V Reg IC001 IC101 IC6501 IC552 3L Comb Filter 5V Reg IC750 H Amp IC2331 IC2301 VAO Amp Audio Amp Q551 H Out IC3001 AV SW TUNER TNR001 Rear AV Jacks...
  • Page 96 Main Components Location IC4802 GeoMagnetic IC4801 GeoMagnetic F801 FUSE Q801 IC351 IC1801 SOCKET IC2101 TUNER VIF, SIF TNR002 - 14 -...

  • Page 97: Chassis Service Adjustment Procedures

    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 heat sink when the HOT ground symbol ( ) is used.

  • Page 98: High Voltage Check

    High Voltage Check 1. Select an active TV channel and confirm that 3. Confirm B+ 140.0V is within limit. horizontal is in sync. 4. Using a high voltage meter confirm that the High 2. Adjust Brightness and Picture using Picture Icon Voltage is 30.55kV ±...

  • Page 99: Dynamic Corvergence Adjustment

    Adjust the Purity rings to set the vertical green raster Dynamic Convergence Adjustment precisely at the center of the screen (see Fig. 13). Use this for a precisely overall convergence adjust at the edges. NOTES: DY(Y ) Adjustment 1. CRT warm up with white screen Adjustment (VR1 for Horizontal dynamic (three guns activated) is needed to stabilize the shadow mask...

  • Page 100: Adjustment (Precise Adjustment)

    Adjustment (precise adjustment) Permalloy Convergence Corrector Strip (Part No. 0FMK014ZZ) 1. Apply a crosshatch pattern. 2. Adjust contrast and brightness customer controls This strip is used in some sets to match the yoke and to obtain a correct picture. CRT for optimum convergence. If the yoke or CRT is 3.
  • Page 101 As the yoke is tilted vertically, the rasters produced 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 raster gets larger while the other gets...

  • Page 102: 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 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 103 Press the Power Button on the Remote Control to select the Service Adjustment. For Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the the available Service Adjustments each...
  • Page 104 Press the Power Button on the Remote Control to select the Service Adjustment For Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the the available Service Adjustments each...
  • Page 105 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. 20 ) for Remote Control to adjust the the available Service Adjustments each...
  • Page 106 Press the Power Button on the Remote Control to select the Service Adjustment Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the value set (b in Fig. 20 ) for Remote Control to select one of Remote Control to adjust the the available Service Adjustments each...
  • Page 107 Press the Power Button on the Remote Control to select the Service Adjustment For Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the the available Service Adjustments each...

  • Page 108: Entering Service Mode (Back-Open Method)

    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 GREEN WHITE SCREEN SCREEN SCREEN SCREEN Figure 21.

  • Page 109: Service Mode Regiters

    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 •...
  • Page 110 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) PINCUSHION ADJUSTMENTS. D ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? IMPORTANT NOTE:...
  • Page 111 Instructional Flow Chart for Service Mode - Continued PIP ADJUSTMENTS. P ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL IMPORTANT NOTE: Always Exit the Service Mode Following Adjustments. POWER (ON REMOTE) OPTIONS ADJUSTMENTS.

  • Page 112: Service Adjustments (Electronic Controls)

    Service Adjustments (Electronic Controls) Sub-Contrast Adjustment Service DAC Adjustment (B02, B03) This adjustment is factory set. Do not adjust unless repairs are made to associated circuit, the CRT Board or when the CRT is replaced. Preparation: 3 IRE 1. Apply a Black-White pattern. 2.

  • Page 113: Pip Sub-Contrast Adjustment (P03)

    PIP Sub-Contrast Adjustment (P03) 4. Observe the oscilloscope waveform at Horizontal rate and adjust the Service Mode Sub-Bright DAC Procedure: (B02) level until a scanning period of 2.4V above 1. Connect the oscilloscope to TPY1. DC ground is measured, as indicated in Fig. 28. 2.

  • Page 114: Horizontal Centering (D00)

    Service Adjustments (Electronic Controls, cont.) Horizontal Centering (D00) Corner PCC Adjustment (D0B) This Adjustment helps to center the picture horizontally Preparation: 1. Apply a Crosshatch pattern Preparation: 2. Normalize the Picture Icon Video adjustments. Connect a monoscope pattern signal. Procedure: Procedure: 1.

  • Page 115: V-Correction Adjustment (D02)

    V-Correction Adjustment (D02) Stereo Separation Adjustment (M01 & M02) Preparation: 1. Apply a Crosshatch pattern. Preparation: 2. Adjust (D01) so that V-Size is regular size. 1. Connect an RF signal generator to the RF antenna 3. If b-a<-1.5mm (in top and bottom), increase (D02) input.

  • Page 116: Clock Adjustment (S07)

    Service Adjustments (Electronic Controls, cont.) Clock Adjustment (S07) 3. Calculate based following formula: Preparation: Connect the frequency counter to TPS1 (IC001 pin 13 Hz pin-13) and cold ground ( S 07 – 873.90625 Note: Frequency Counter probe capacitance should be 8pF or less. Figure 36.

  • Page 117: Audio Signal Path Block Diagram

    Audio Signal Path Block Diagram Figure 38. Audio Signal Path Block Diagram. - 35 -...
  • Page 118 Video Signal Path Block Diagram No-PIP Models Figure 39. No-PIP Video Signal Path Block Diagram. - 36 -...
  • Page 119 Video Signal Path Block Diagram 2-Tuner PIP Models Figure 40. 2-Tuner PIP Video Signal Path Block Diagram. - 37 -...

  • Page 120: Replacement Parts List

    REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION C331 TCJ2VF1H103Z CAP,C .01UF-Z-50V CAPRISTORS C337 ECA1HM2R2B...
  • Page 121 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION C556 ECWH20182JVY CAP,P 1500PF-J-2KV C815 ECQB1H104JM3 CAP,P .1UF-J-50V...
  • Page 122 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION CAP,C .1UF-Z-50V CAP,E 33UF-16V C1810 TCJ2VF1H104Z C2108...
  • Page 123 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION C2335 ECA1HM010B CAP,E 1UF-50V CAP,E 330UF-6.3V C4301 ECA0JM331B...
  • Page 124 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION D001 MA165TA5VT DIODE, SWITCHING D822 RU3YX-MV1 DIODE, RECTIFIER...
  • Page 125 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION IC2331 NJM4565L VAO AMP. COIL, PEAKING 15UH L1804 ELESN150JA...
  • Page 126 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION Q861 2SB1011QRL TRANSISTOR Q6512 2SD601ARTX TRANSISTOR...
  • Page 127 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION RES,M 22K-J-1/10W R351 ER0S2TKF9100 RES,M 910-F-1/4W R043...
  • Page 128 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION R486 ERJ6GEYJ473V RES,M 47K-J-1/10W R710 ERJ6GEYJ562V RES,M 5.6K-J-1/10W...
  • Page 129 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION R856 ERQ3CJ3R9 RES,F 3.9-J-3W RES,M 1K-J-1/10W R1805 ERJ6GEYJ102V...
  • Page 130 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION CONTROL 10K R2354 ERJ6GEYJ103V RES,M 10K-J-1/10W R2118...
  • Page 131 ERJ6GEYJ102V RES,M 1K-J-1/10W SPLITTER, RF M007 ENPE630 CT-27SX31E/CE/UE R6509 ERJ6GEYJ471V RES,M 470-J-1/10W M008 TAS2AA0023 SPEAKER 8-OHM R6510 ERJ6GEYJ471V RES,M 470-J-1/10W M009 TBM2A30843 BADGE, PANASONIC R6512 ERJ6GEYJ471V RES,M 470-J-1/10W M010 TBX2AA0151G BUTTON, 7-KEY R6513 ERJ6GEYJ122V Parts List - 49 - 177-01...
  • Page 132 REPLACEMENT PARTS LIST Model:CT-27SX31E/UE/CE & CT-27SX11E/UE/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. PART NO. DESCRIPTION PART NO. DESCRIPTION ACCESORIES M011 TEK6940 DOOR CATCH M012 TKP2AA0613S...
  • Page 133 C- Board Schematic, Layout & Voltages - Diagrama Eléctrico, Diagrama Impreso y Voltajes Tarjeta-C ALL MODELS Schematic Notes Resistors are carbon 1/4W unless noted (BOLD LINE) indicates the otherwise. route of B+ supply. IDENTIFICACIÓN DE TERMINALES Capacitors are ceramic 50V unless noted The schematic diagrams are current at PARA TRANSISTORES EN CHIP otherwise.
  • Page 134 CT-27SX11E/ CE/ UE A-Board Schematic, Left Portion - Diagrama Eléctrico de la Tarjeta-A, Sección Izquierda - 52 -...
  • Page 135 A-Board Schematic, Right Portion - Diagrama Eléctrico de la Tarjeta-A, Sección Derecha CT-27D11E/ CE/ UE SCHEMATIC Medición de Voltajes Medición de voltaje: Las mediciones de los voltajes son nominales y pueden variar El voltaje de entrada al Receptor hasta 10% en componentes en es de 120V de Corriente Alterna.
  • Page 136 CT-27SX31E/ CE/ UE A-Board Schematic, Left Portion - Diagrama Electrico de la Tarjeta-A, Sección Izquierda - 54 -...
  • Page 137 A-Board Schematic, Right Portion - Diagrama Eléctrico de la Tarjeta-A, Sección Derecha CT-27SX31E/ CE/ UE 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 138 ALL MODELS A-Board Layout - Diagrama Impreso de la Tarjeta-A - 56 -...

  • Page 139: A-Board Voltages

    A-Board Voltages - Voltajes Tarjeta- A ALL MODELS IC001 IC101 IC3001 Q002 Q003 Q004 Q005 Q006 ..0.00 ..2.07 ..4.00 ..3.33 .
  • Page 140 ALL MODELS P-Board Schematic, Layout & Voltages - Diagrama Impreso, Eléctrico y Voltajes Tarjeta-P - 58 -...
  • Page 141 P- Board Layout & Voltages - Circuito Impreso y Voltajes Tarjeta-P ALL MODELS IC4802 IC4801 ..0.00 ..1.29 ..0.65 ..0.00 ..8.75 .
  • Page 142 CT-27SX31E/ CE/ UE S -Board Schematic Diagram, Layout and Voltages - Tarjeta S, Diagrama Eléctrico, de Circuito Impreso y Voltajes Voltage Measurements Voltage measurement: Voltage readings are nominal IC2101 Q2101 and may vary ±10% on active AC input to the Receiver is 120V. devices.
  • Page 143 Y- Board Schematic, Layout & Voltages - Circuito Eléctrico, de Circuito Impreso y Voltajes Tarjeta-Y CT-27SX31E/ CE/ UE IC1801 ..0.00 ..3.24 ..1.39 ..3.24 .

  • Page 144: A-Board Waveforms

    ALL MODELS A-Board Waveforms - Formas de Onda Tarjeta A Waveforms - A-Board 1.0-1.1V p-p [20µs] 3.9-5.4V p-p [20µs] 4.1-4.2V p-p [5ms] 178.0-180.0V p-p [20µs] 344.0-348.0V p-p [5µs] IC3001 PIN 36 (VIDEO) (R OUT) Q802 Collector IC101 PIN 33 (VERT OUT) Q501 Collector (H DRIVE) TP47R 503KHz X’tal...
  • Page 145 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 146 ® Printed in USA K01062225CM0706 - 52 -...

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