Allgemeiner Teil / General Section
GDV 120…
1 - 2
GRUNDIG Service
GB
Table of Contents
Page
General Section ................................. 1-2…1-26
Test Equipment / Jigs ................................................................. 1-2
Specifications .............................................................................. 1-3
Disassembly Instructions ............................................................ 1-3
Service Instructions ..................................................................... 1-6
LASER Safety .............................................................................. 1-6
Operating Hints ......................................................................... 1-17
Trouble Shooting Diagram
and Block Circuit Diagrams ............... 2-1…2-4
Trouble Shooting Diagram ........................................................... 2-1
Reset ............................................................................................ 2-2
Clock ............................................................................................ 2-2
DVD/VCD and CD Signal Path .................................................... 2-3
Drive Control ................................................................................ 2-4
Layout of PCBs
and Circuit Diagrams ........................ 3-1…3-56
Wiring Diagrams ......................................................................... 3-1
Power Supply ............................................................................... 3-2
Control Board .............................................................................. 3-5
Headphone Board ........................................................................ 3-7
Socket Boards ............................................................................. 3-9
MPEG Board – GDV 120 .......................................................... 3-12
Drive Board – GDV 120 ............................................................ 3-21
MPEG Board – GDV 120/02 ..................................................... 3-29
Drive Board – GDV 120/02 ....................................................... 3-39
Oscillograms .............................................................................. 3-47
DC Voltages ............................................................................... 3-50
Exploded Views and
Spare Parts Lists ................................. 3-1…3-6
D
Inhaltsverzeichnis
Seite
Allgemeiner Teil ................................ 1-2…1-16
Messgeräte / Messmittel ............................................................. 1-2
Technische Daten ....................................................................... 1-3
Ausbauhinweise .......................................................................... 1-3
Servicehinweise .......................................................................... 1-6
LASER-Sicherheit ........................................................................ 1-6
Bedienhinweise ........................................................................... 1-7
Fehlersuchdiagramm
und Blockschaltpläne ......................... 2-1…2-4
Fehlersuchdiagramm ................................................................... 2-1
Reset ............................................................................................ 2-2
Takt .............................................................................................. 2-2
DVD-/VCD- und CD-Signalverarbeitung ...................................... 2-3
Laufwerksteuerung ...................................................................... 2-4
Platinenabbildungen
und Schaltpläne ................................ 3-1…3-56
Verdrahtungspläne ...................................................................... 3-1
Netzteil ........................................................................................ 3-2
Bedieneinheit .............................................................................. 3-5
Kopfhörerplatte ............................................................................ 3-7
Buchsenplatten ........................................................................... 3-9
MPEG-Platte – GDV 120 .......................................................... 3-12
Laufwerkplatte – GDV 120 ........................................................ 3-21
MPEG-Platte – GDV 120/02 ..................................................... 3-29
Laufwerkplatte – GDV 120/02 ................................................... 3-39
Oszillogramme ........................................................................... 3-47
DC-Spannungen ........................................................................ 3-50
Explosionszeichnungen
und Ersatzteillisten ............................. 3-1…3-6
„Dolby“, „Dolby Pro Logic“, „AC 3“ ist gefertigt unter Lizenz von Dolby Laboratories
Licensing Corporation.
„Dolby“, „Dolby Pro Logic“, „AC 3“ und das Doppel-D-Symbol „
ij
“ sind Warenzei-
chen der Dolby Laboratories Licensing Corporation. Copyright 1992 Dolby
Laboratories, Inc. Alle Rechte vorbehalten.
“Dolby“, “Dolby Pro Logic“, “AC 3” manufactured under license from Dolby
Laboratories Licensing Corporation.
“Dolby“, “Dolby Pro Logic“, “AC 3” and the double-D symbol “
ij
” are trademarks of
the Dolby Laboratories Licensing Corporation. Copyright 1992 Dolby Laboratories,
Inc. All rights reserved.
General Section
Test Equipment / Jigs
Variable isolating transformer
Dual channel oscilloscope
Digital multimeter
Millivoltmeter
Frequency counter
Please note the Grundig Catalog "Test and Measuring Equipment"
obtainable from:
Allgemeiner Teil
Messgeräte / Messmittel
Regeltrenntrafo
Zweikanaloszilloskop
Digitalmultimeter
Millivoltmeter
Frequenzzähler
Beachten Sie bitte das Grundig Messtechnik-Programm, das Sie unter
folgender Adresse erhalten:
Grundig AG
Geschäftsbereich Instruments
Test- und Messsysteme
Würzburger Str. 150, D-90766 Fürth
Tel.: 0911 / 703-4118; Fax: 0911 / 703-4130
eMail: [email protected]
Internet: http:\\www.grundig-instruments.de
