Allgemeiner Teil / General Section
Es gelten die Vorschriften und Sicherheitshin-
weise gemäß dem Service Manual "Sicherheit",
Materialnummer 720108000000, sowie zusätz-
lich die eventuell abweichenden, landes-
spezifischen Vorschriften!
Inhaltsverzeichnis
Servicehinweise ......................................................................... 1 - 3
Technische Daten ...................................................................... 1 - 4
Ausbauhinweise ......................................................................... 1 - 5
Bedienhinweise .......................................................................... 1 - 8
Schaltpläne und
Platinenabbildungen .................... 3 - 1 ... 3 - 25
Blockschaltplan .......................................................................... 3 - 1
Verdrahtungsplan ....................................................................... 3 - 2
Teil-Schaltpläne:
Tuner ...................................................................................... 3 - 4
CD .......................................................................................... 3 - 6
Cassette ................................................................................. 3 - 8
NF-Teil, Netzteil ................................................................... 3 - 10
CPU, Display ........................................................................ 3 - 12
Tasten-Platten ...................................................................... 3 - 14
Platinenabbildungen:
Haupt-Platte ......................................................................... 3 - 18
Kopfhörer-Platte ................................................................... 3 - 18
Tasten-Platte ........................................................................ 3 - 21
Display-Platte ....................................................................... 3 - 22
CD-Platte .............................................................................. 3 - 23
Front-Platte .......................................................................... 3 - 24
Beleuchtungs-Platte ............................................................. 3 - 25
Netzteil-Platte ....................................................................... 3 - 25
IC-Innenbeschaltungen ............................................................ 3 - 16
Explosionszeichnung und
Ersatzteilliste .................................. 4 - 1 ... 4 - 4
Allgemeiner Teil
Messgeräte / Messmittel
Mess-Sender
Oszilloskop
Digital-Voltmeter
Frequenzzähler
Test-Cassette 3150Hz/10kHz
1 - 2
The regulations and safety instructions shall be
valid as provided by the "Safety" Service Manual,
part number 720108000000, as well as the re-
spective national deviations!
Table of Contents
Seite
General Section ............................ 1 - 2 ... 1 - 12
Measuring Instruments / Equipment .......................................... 1 - 2
Service Hints .............................................................................. 1 - 3
Technical Data ........................................................................... 1 - 4
Disassembly Instructions ........................................................... 1 - 5
Operating Hints ........................................................................ 1 - 10
Adjustment Procedures ................. 2 - 2 ... 2 - 3
Circuit Diagrams and
Layout of the PCBs ...................... 3 - 1 ... 3 - 25
Block Diagram ............................................................................ 3 - 1
Wiring Diagram .......................................................................... 3 - 2
Circuit Diagrams section:
Tuner ...................................................................................... 3 - 4
CD .......................................................................................... 3 - 6
Cassette ................................................................................. 3 - 8
AF Part, Power Supply ......................................................... 3 - 10
CPU, Display ........................................................................ 3 - 12
Key Boards ........................................................................... 3 - 14
Layout of the PCBs:
Main Board ........................................................................... 3 - 18
Headphone Board ................................................................ 3 - 18
Key Board ............................................................................ 3 - 21
Display Board ....................................................................... 3 - 22
CD Board ............................................................................. 3 - 23
Front Board .......................................................................... 3 - 24
Backlight Board .................................................................... 3 - 25
IC Block Diagrams ................................................................... 3 - 16
General Section
Measuring Instruments / Equipment
Signal Generator
Oscilloscope
Digital Voltmeter
Frequency Counter
Test Cassette 3150Hz/10kHz
Varixx UMS 4200
Page
GRUNDIG Service