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Service Btx Manual - Electr³nica - Esquemas .part number 72010-800.00, ... TV-Signalprozessor...

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  • Service Manual

    Sach-Nr./Part No. 72010-017.80

    Service Manual

    SicherheitSafety

    Sach-Nr./Part No.72010-800.00

    Zustzlich erforder-liche Unterlagenfr denKomplettservice:

    Additionallyrequired ServiceManuals for theComplete Service:

    nderungen vorbehalten Printed in Germany Service Manual Sach-Nr.Subject to alteration VK 22 0995 Service Manual Part No. 72010-017.80

    SERVICE MANUAL

    D Btx * 32700 #

    CUC 7301

    P 37 - 065 / 5 (9.21322-02 / GCA 4602)P 37 - 070 (9.21322-01 / GCA 4502)P 37 - 730 text (9.21368-01 / GCB 1702)

    P 37 - 070 GB (9.21322-63 / GCD 1302 GB)P 37 - 730 text/GB (9.21368-64 / GCD 1402 GB)

    TP 711 (29642-062.01)

    http://www.grundig.com

  • GRUNDIG Service1 - 2

    Allgemeiner Teil / General Section CUC 7301

    Es gelten die Vorschriften und Sicherheitshin-weise gem dem Service Manual "Sicherheit",Sach-Nummer 72010-800.00, sowie zustzlichdie eventuell abweichenden, landesspezifischenVorschriften!

    The regulations and safety instructions shall bevalid as provided by the "Safety" Service Manual,part number 72010-800.00, as well as therespective national deviations.

    Table of ContentsPage

    General Section ................................... 1-1... 1-14Technical Data ............................................................................. 1-3Module List ................................................................................... 1-4Safety Advice ............................................................................... 1-4Hints to the Components ............................................................. 1-4Hints to the Oscillograms ............................................................. 1-5Circuit Diagram Symbols ............................................................. 1-6Service Instructions (P 37-070) .................................................. 1-11Special and Service Functions ................................................... 1-13

    Descriptions ......................................... 2-1... 2-101. Power Supply ........................................................................... 2-12. System Control ........................................................................ 2-33. TV Signal Processor TDA 8362 A ............................................ 2-43.1 Overview ................................................................................ 2-4

    3.2 IF ........................................................................................ 2-43.3 CCVS-Signal ...................................................................... 2-43.4 External CCVS Signal ........................................................ 2-53.5 Sound IF ............................................................................. 2-53.6 Luminance and Chrominance Signal ................................. 2-53.7 SECAM Signal Path

    and Automatic PAL/SECAM Switching .............................. 2-63.8 RGB Signal Path ................................................................ 2-73.9 Generation of the Horizontal and Vertical Sync Signals .... 2-73.10 Line Oscillator .................................................................. 2-83.11 1-Phase Control ............................................................ 2-83.12. 2-Phase Control ............................................................ 2-83.13. The Super Sandcastle SSC ............................................ 2-83.14 Setting of the Cut-Off Voltage .......................................... 2-83.15 The HDR Output Stage .................................................... 2-83.16 The Field Deflection Stage ............................................... 2-93.17 Non-Interlace Compensation with Teletext ...................... 2-93.18 Coinzidence ..................................................................... 2-9Block Circuit Diagram ............................................................. 2-10

    Adjustments ................................................... 3-2Chassis Board .............................................................................. 3-2

    Layout of the PCBsand Circuit Diagrams ......................... 4-1... 4-20Chassis Board .............................................................................. 4-1Oscillograms ................................................................................ 4-7General Circuit Diagram .............................................................. 4-9Tuner 29504-201.21/.31 ............................................................ 4-14Oscillogrammes CRT Panel ....................................................... 4-18CRT Panel 29305-022.14/.15 .................................................... 4-19

    Spare Parts List .................................... 5-1... 5-8

    GBD

    InhaltsverzeichnisSeite

    Allgemeiner Teil .................................. 1-1... 1-14Technische Daten ....................................................................... .1-3Modulbersicht ............................................................................. 1-4Sicherheitshinweise ..................................................................... 1-4Hinweise zu den Bauteilen ........................................................... 1-4Hinweise zu den Oszillogrammen ................................................ 1-5Schaltplansymbole ....................................................................... 1-6Bedienungsanleitung (P 37-070) ............................................... 1-11Sonder- und Servicefunktionen .................................................. 1-13

    Beschreibungen ................................... 2-1... 2-101. Netzteil ..................................................................................... 2-12. Systemsteuerung ..................................................................... 2-33. TV-Signalprozessor TDA 8362 A ............................................. 2-4

    3.1 bersicht ............................................................................ 2-43.2 ZF ....................................................................................... 2-43.3 FBAS-Signal ....................................................................... 2-43.4 Externes FBAS-Signal ....................................................... 2-53.5 Ton-ZF ............................................................................... 2-53.6 Luminanz- und Chrominanzsignal ...................................... 2-53.7 SECAM-Signalweg

    und automatische PAL/SECAM-Umschaltung ................... 2-63.8 RGB-Signalweg .................................................................. 2-73.9 Gewinnung der H- und V-Synchronsignale ........................ 2-73.10 Zeilenoszillator ................................................................. 2-83.11 1-Regelung ................................................................... 2-83.12. 2-Regelung ................................................................... 2-83.13. Supersandcastle SSC ..................................................... 2-83.14 Cut-Off-Einstellung ........................................................... 2-83.15 HDR-Endstufe .................................................................. 2-83.16 Vertikal-Ablenkung ........................................................... 2-93.17 Non-Interlace Kompensation bei Videotext ...................... 2-93.18 Koinzidenz ........................................................................ 2-9Blockschaltbild ....................................................................... 2-10

    Abgleich .......................................................... 3-1Chassisplatte ............................................................................... 3-1

    Platinenabbildungenund Schaltplne .................................. 4-1... 4-20Chassisplatte ............................................................................... 4-1Oszillogramme ............................................................................. 4-7Gesamtschaltplan ........................................................................ 4-9Tuner 29504-201.21/.31 ............................................................ 4-14Oszillogramme Bildrhrenplatte ................................................. 4-18Bildrohrplatte 29305-022.14/.15 ................................................. 4-19

    Ersatzteilliste ......................................... 5-1... 5-8

  • GRUNDIG Service

    CUC 7301 Allgemeiner Teil / General Section

    1 - 3

    Allgemeiner Teil

    Megerte / MemittelRegeltrenntrafo Me-/WobbelsenderFarbgenerator OszilloskopDC-Voltmeter NF-VoltmeterNF-Generator Frequenzzhler

    Beachten Sie bitte das Grundig Metechnik-Programm, das Sie unterfolgender Adresse erhalten:

    Grundig electronics GmbHWrzburger Str. 150D-90766 Frth/Bay.Tel.0911/703-0Telefax 0911/703-4479

    General Part

    Test Equipment / AidsVariable isolating transformer Test/Sweep GeneratorColour Generator OscilloscopeDC Voltmeter AF VoltmeterAF Generator Frequency counter

    Please note the Grundig Catalog "Test and Measuring Equipment"obtainable from:

    Grundig electronics GmbHWrzburger Str. 150D-90766 Frth/Bay.Tel.0911/703-0Telefax 0911/703-4479

    Technische Daten / Technical Data

    P 37-065/5 P 37-070 P 37-730 text P 37-070 GB P 37-730 text/GB

    Bildrhre / Picture Tube

    Sichtbares BildVisible picture 34cm 34cm 34cm 34cm 34cm

    BildschirmdiagonaleScreen diagonale

    37cm (14")Tinted glass

    37cm (14")Tinted glass

    37cm (14")Tinted glass

    37cm (14")Tinted glass

    37cm (14")Tinted glass

    AblenkwinkelDeflection angle 90 90 90 90 90

    BildwechselfrequenzVertical frequency 50Hz 50Hz 50Hz 50Hz 50Hz

    Elektronik / Electronic

    ProgrammspeicherpltzeProgramme positions 79 TV + 1 AV 7

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