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Allgemeiner Teil / General Section
GV 30…, GV 50…
1 - 2
GRUNDIG Service
GB
Table of Contents
Page
General Section .................................. 1-3…1-36
Table of PCBs and Circuit Diagrams ........................................... 1-3
Table of Features ......................................................................... 1-4
Test Equipment / Jigs .................................................................. 1-5
Specifications ............................................................................... 1-5
Service Instructions ...................................................................... 1-6
Operating Hints .......................................................................... 1-22
Diagnostic Programme ................................. 2-2
Adjustment Procedures................................ 3-2
Layout of the PCBs
and Circuit Diagrams ......................... 4-1…4-58
Wiring Diagram ............................................................................ 4-1
Block Circuit Diagram
• Power Supply ............................................................................ 4-2
• Digital ........................................................................................ 4-3
• Digital/Servo .............................................................................. 4-4
• IN/OUT ...................................................................................... 4-6
• Interface (Audio/Video) ............................................................. 4-7
• Audio ......................................................................................... 4-8
• Video/Chroma .............................................................................4-9
Oscillograms .............................................................................. 4-14
Layout of PCBs and Circuit Diagrams see page 1-3
Drive Mechanism.............................. 5-16…5-30
Test Equipment / Jigs ................................................................ 5-16
Cleaning ..................................................................................... 5-16
Maintenance and Inspection of the Drive Mechanism ............... 5-17
Names of the Main Mechanical Parts ........................................ 5-17
Checking the Mechanism Mode Positions ................................. 5-19
Operating the Mechanism in the Service Test Mode ................. 5-20
Overview of Operating Modes ................................................... 5-20
Replacing Parts of the Drive Mechanism ................................... 5-21
Adjustments ............................................................................... 5-29
Exploded Views and
Spare Parts Lists ................................ 6-1…6-20
D
Inhaltsverzeichnis
Seite
Allgemeiner Teil ................................. 1-3…1-22
Platinen- und Schaltplanübersicht ............................................... 1-3
Feature-Übersicht ........................................................................ 1-4
Messgeräte / Messmittel .............................................................. 1-5
Technische Daten ........................................................................ 1-5
Servicehinweise ........................................................................... 1-6
Bedienhinweise ............................................................................ 1-8
Fehlerdiagnoseprogramm ............................ 2-1
Abgleichvorschriften .................................... 3-1
Platinenabbildungen
und Schaltpläne ................................. 4-1…4-58
Verdrahtungsplan ......................................................................... 4-1
Blockschaltpläne
• Netzteil ...................................................................................... 4-2
• Digital ........................................................................................ 4-3
• Digital/Servo .............................................................................. 4-4
• IN/OUT ...................................................................................... 4-6
• Interface (Audio/Video) ............................................................. 4-7
• Audio ......................................................................................... 4-8
• Video/Chroma ........................................................................... 4-9
Oszillogramme ........................................................................... 4-14
Platinenabbildungen und Schaltpläne siehe Seite 1-3
Laufwerk ............................................. 5-1…5-15
Messgeräte / Messmittel .............................................................. 5-1
Reinigung ..................................................................................... 5-1
Wartung und Überprüfung des Laufwerks ................................... 5-2
Bezeichnung der wichtigsten Teile des Laufwerks ...................... 5-2
Überprüfung der Laufwerksfunktionen ......................................... 5-4
Servicetestmode der Laufwerksfunktionen .................................. 5-5
Übersicht der Laufwerksfunktionen .............................................. 5-5
Auswechseln von Laufwerksteilen ............................................... 5-6
Einstellungen ............................................................................. 5-14
Explosionszeichnungen
und Ersatzteillisten ............................ 6-1…6-20