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Istruzioni per l'uso GRUNDIG CUC 7301 - SERVICE MANUAL

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Estratto del manuale: manuale d'uso GRUNDIG CUC 7301 - SERVICE MANUAL

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SERVICE MANUAL Service Manual Zusätzlich erforderliche Unterlagen für den Komplettservice: Additionally required Service Manuals for the Complete Service: Service Manual Sicherheit Safety D Btx 32700 # * Sach-Nr./Part No. Sach-Nr./Part No. 72010-017.80 72010-800.00 CUC 7301 P 37 - 070 GB P 37 - 730 text/GB (9.21322-63 / GCD 1302 GB) (9.21368-64 / GCD 1402 GB) P 37 - 065 / 5 P 37 - 070 P 37 - 730 text (9.21322-02 / GCA 4602) (9.21322-01 / GCA 4502) (9.21368-01 / GCB 1702) TP 711 (29642-062.01) Änderungen vorbehalten Subject to alteration Printed in Germany VK 22 0995 Service Manual Sach-Nr. Service Manual Part No. 72010-017.80 Allgemeiner Teil / General Section CUC 7301 Es gelten die Vorschriften und Sicherheitshinweise gemäß dem Service Manual "Sicherheit", Sach-Nummer 72010-800.00, sowie zusätzlich die eventuell abweichenden, landesspezifischen Vorschriften! The regulations and safety instructions shall be valid as provided by the "Safety" Service Manual, part number 72010-800.00, as well as the respective national deviations. D GB Inhaltsverzeichnis Seite Table of Contents Page Allgemeiner Teil .................................. 1-1... 1-14 Technische Daten ....................................................................... .1-3 Modulübersicht ............................................................................. 1-4 Sicherheitshinweise ..................................................................... 1-4 Hinweise zu den Bauteilen ........................................................... 1-4 Hinweise zu den Oszillogrammen ................................................ 1-5 Schaltplansymbole ....................................................................... 1-6 Bedienungsanleitung (P 37-070) ............................................... 1-11 Sonder- und Servicefunktionen .................................................. 1-13 General Section ................................... 1-1... 1-14 Technical Data ............................................................................. 1-3 Module List ................................................................................... 1-4 Safety Advice ............................................................................... 1-4 Hints to the Components ............................................................. 1-4 Hints to the Oscillograms ............................................................. 1-5 Circuit Diagram Symbols ............................................................. 1-6 Service Instructions (P 37-070) .................................................. 1-11 Special and Service Functions ................................................... 1-13 Beschreibungen ................................... 2-1... 2-10 1. Netzteil ..................................................................................... 2-1 2. Systemsteuerung ..................................................................... 2-3 3. TV-Signalprozessor TDA 8362 A ............................................. 2-4 3.1 Übersicht ............................................................................ 2-4 3.2 ZF ....................................................................................... 2-4 3.3 FBAS-Signal ....................................................................... 2-4 3.4 Externes FBAS-Signal ....................................................... 2-5 3.5 Ton-ZF ............................................................................... 2-5 3.6 Luminanz- und Chrominanzsignal ...................................... 2-5 3.7 SECAM-Signalweg und automatische PAL/SECAM-Umschaltung ................... 2-6 3.8 RGB-Signalweg .................................................................. 2-7 3.9 Gewinnung der H- und V-Synchronsignale ........................ 2-7 3.10 Zeilenoszillator ................................................................. 2-8 3.11 1-Regelung ................................................................... 2-8 3.12. 2-Regelung ................................................................... 2-8 3.13. Supersandcastle SSC ..................................................... 2-8 3.14 Cut-Off-Einstellung ........................................................... 2-8 3.15 HDR-Endstufe .................................................................. 2-8 3.16 Vertikal-Ablenkung ........................................................... 2-9 3.17 Non-Interlace Kompensation bei Videotext ...................... 2-9 3.18 Koinzidenz ........................................................................ 2-9 Blockschaltbild ....................................................................... 2-10 Descriptions ......................................... 2-1... 2-10 1. Power Supply ........................................................................... 2-1 2. System Control ........................................................................ 2-3 3. TV Signal Processor TDA 8362 A ............................................ 2-4 3.1 Overview ................................................................................ 2-4 3.2 IF ........................................................................................ 2-4 3.3 CCVS-Signal ...................................................................... 2-4 3.4 External CCVS Signal ........................................................ 2-5 3.5 Sound IF ............................................................................. 2-5 3.6 Luminance and Chrominance Signal ................................. 2-5 3.7 SECAM Signal Path and Automatic PAL/SECAM Switching .............................. 2-6 3.8 RGB Signal Path ................................................................ 2-7 3.9 Generation of the Horizontal and Vertical Sync Signals .... 2-7 3.10 Line Oscillator .................................................................. 2-8 3.11 1-Phase Control ............................................................ 2-8 3.12. 2-Phase Control ............................................................ 2-8 3.13. The Super Sandcastle SSC ............................................ 2-8 3.14 Setting of the Cut-Off Voltage .......................................... 2-8 3.15 The HDR Output Stage .................................................... 2-8 3.16 The Field Deflection Stage ............................................... 2-9 3.17 Non-Interlace Compensation with Teletext ...................... 2-9 3.18 Coinzidence ..................................................................... 2-9 Block Circuit Diagram ............................................................. 2-10 Abgleich .......................................................... 3-1 Chassisplatte ............................................................................... 3-1 Adjustments ................................................... 3-2 Chassis Board .............................................................................. 3-2 Platinenabbildungen und Schaltpläne .................................. 4-1... 4-20 Chassisplatte ............................................................................... 4-1 Oszillogramme ............................................................................. 4-7 Gesamtschaltplan ........................................................................ 4-9 Tuner 29504-201.21/.31 ............................................................ 4-14 Oszillogramme Bildröhrenplatte ................................................. 4-18 Bildrohrplatte 29305-022.14/.15 ................................................. 4-19 Layout of the PCBs and Circuit Diagrams ......................... 4-1... 4-20 Chassis Board .............................................................................. 4-1 Oscillograms ................................................................................ 4-7 General Circuit Diagram .............................................................. 4-9 Tuner 29504-201.21/.31 ............................................................ 4-14 Oscillogrammes CRT Panel ....................................................... 4-18 CRT Panel 29305-022.14/.15 .................................................... 4-19 Ersatzteilliste ......................................... 5-1... 5-8 Spare Parts List .................................... 5-1... 5-8 1-2 GRUNDIG Service CUC 7301 Allgemeiner Teil / General Section Allgemeiner Teil Meßgeräte / Meßmittel Regeltrenntrafo Farbgenerator DC-Voltmeter NF-Generator Meß-/Wobbelsender Oszilloskop NF-Voltmeter Frequenzzähler General Part Test Equipment / Aids Variable isolating transformer Colour Generator DC Voltmeter AF Generator Test/Sweep Generator Oscilloscope AF Voltmeter Frequency counter Beachten Sie bitte das Grundig Meßtechnik-Programm, das Sie unter folgender Adresse erhalten: Grundig electronics GmbH Würzburger Str. 150 D-90766 Fürth/Bay. Tel.0911/703-0 Telefax 0911/703-4479 Please note the Grundig Catalog "Test and Measuring Equipment" obtainable from: Grundig electronics GmbH Würzburger Str. 150 D-90766 Fürth/Bay. Tel.0911/703-0 Telefax 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 Bildröhre / Picture Tube Sichtbares Bild Visible picture Bildschirmdiagonale Screen diagonale Ablenkwinkel Deflection angle Bildwechselfrequenz Vertical frequency Elektronik / Electronic Programmspeicherplätze Programme positions AV-Auswertung AV evaluation Tuner 79 TV + 1 AV 79 TV + 1 AV 79 TV + 1 AV 79 TV + 1 AV 79 TV + 1 AV 34cm 37cm (14") Tinted glass 90° 50Hz 34cm 37cm (14") Tinted glass 90° 50Hz 34cm 37cm (14") Tinted glass 90° 50Hz 34cm 37cm (14") Tinted glass 90° 50Hz 34cm 37cm (14") Tinted glass 90° 50Hz auf jeden Programmplatz programmierbar / programmable for every programme position Kabeltuner-Raster 8MHz für Hyperband / cable tuner - 8MHz spacing for hyperband TV-Normen TV standards PAL, SECAM, BG, DK/K' PAL/BG PAL/BG PAL/I PAL/I Videotext Teletext Musikleistung Music power _ 2W _ 2W 1-Seiten Text 1-pages text 2W _ 2W 1-Seiten Text 1-pages text 2W Anschlüsse Rückwand / Connections rear panel Euro AV (schwarz/black) Netzteil / Mains Stage Netzspannung (Regelbereich) Mains voltage (variable) Netzfrequenz Mains frequency Leistungsaufnahme Power consumption Standby 165 ...265V 50 / 60Hz ca. 50W ca. 8W 165 ...265V 50 / 60Hz ca. 40W ca. 8W 165 ...265V 50 / 60Hz ca. 40W ca. 8W 165 ...265V 50 / 60Hz ca. 40W ca. 8W 165 ...265V 50 / 60Hz ca. 40W ca. 8W voll belegt fully wired voll belegt fully wired voll belegt fully wired voll belegt fully wired voll belegt fully wired GRUNDIG Service 1-3 Allgemeiner Teil / General Section CUC 7301 Modulübersicht / Module List Gerät Unit P 37-065/5 P 37-070 P 37-730 text P 37-070 GB P 37-730 text / GB Chassis Tuner BR-Platte CRT Panel 29305-022.14 29305-022.14 29305-022.14 29305-022.14 29305-022.14 Fernbedienung Remote Control 29642-062.01 29642-062.01 29642-062.01 29642-062.01 29642-062.01 29701-092.02/.05 29504-201.21/.31 29701-091.31 29701-091.32 29504-201.21/.31 29504-201.21/.31 29701-091.11/.12 29504-201.21/.31 29701-091.13/.14 29504-201.21/.31 Sicherheits-Hinweis Die in den Fernsehgeräten auftretende Röntgenstrahlung entspricht den Bestimmungen der Physikalisch-Technischen Bundesanstalt vom 8. Januar 1987. Die Hochspannung für die Bildröhre und die damit auftretende Röntgenstrahlung ist abhängig von der exakten Einstellung der Netzteilspannung +A. Nach jeder Reparatur im Netzteil oder in der Horizontalablenkung ist die Hochspannung zu messen und ggf. einzustellen. Schutzschaltungen im Gerät dürfen nur kurzzeitig außer Betrieb gesetzt werden, um Folgeschäden am Chassis oder an der Bildröhre zu vermeiden. Beim Austausch der Bildröhre dürfen nur die in den Ersatzteillisten vorgeschriebenen Typen verwendet werden. Safety Advice The X-radiation developing in the sets conforms to the X-radiation Regulations (January 8, 1987), issued by the Physikalisch-Technische Bundesanstalt (federal physiotechnical institution). The high tension for the picture tube and thus the developing Xradiation depends on the precise adjustment of the +A power supply. After every repair of the power supply unit or the horizontal deflection stage it is imperative that the EHT for the picture tube is checked and re-adjusted if necessary. To avoid consequential damages to the chassis or the picture tube the integrated protective circuits are allowed to be put out of operation only for a short time. When replacing the picture tube use only the types specified in the spare parts lists. Hinweise zu den Bauteilen / Hints to Components / Istruzioni sui Componenti / Observaciones sobre los Componentes / Precautions a observer Metallschichtwiderstände Metal film resistors Resistenza a strato metallico Resistencia de capa metálica Film métall ...

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