Allgemeiner Teil / General SectionGDV 120�
Es gelten die Vorschriften und SicherheitshinweiseThe regulations and safety instructions shall be valid
gemЧ dem Service Manual "Sicherheit", Material-as provided by the "Safety" Service Manual, part
nummer 72010 800 0000, sowie zusÅ tzlich die even-number 72010 800 0000, as well as the respective
tuell abweichenden, landesspezifischen Vorschriften!national deviations.
DGB
InhaltsverzeichnisTable of Contents
SeitePage
Allgemeiner Teil ................................ 1-2�1-16General Section ................................. 1-2�1-26
MessgerÅ te / Messmittel ............................................................. 1-2Test Equipment / Jigs ................................................................. 1-2
Technische Daten ....................................................................... 1-3Specifications .............................................................................. 1-3
Ausbauhinweise .......................................................................... 1-3Disassembly Instructions ............................................................ 1-3
Servicehinweise .......................................................................... 1-6Service Instructions..................................................................... 1-6
LASER-Sicherheit ........................................................................ 1-6LASER Safety .............................................................................. 1-6
Bedienhinweise ........................................................................... 1-7Operating Hints ......................................................................... 1-17
FehlersuchdiagrammTrouble Shooting Diagram
und BlockschaltplŠne ......................... 2-1�2-4and Block Circuit Diagrams ............... 2-1�2-4
Fehlersuchdiagramm ................................................................... 2-1Trouble Shooting Diagram ........................................................... 2-1
Reset............................................................................................ 2-2Reset............................................................................................ 2-2
Takt .............................................................................................. 2-2Clock ............................................................................................ 2-2
DVD-/VCD- und CD-Signalverarbeitung ...................................... 2-3DVD/VCD and CD Signal Path .................................................... 2-3
Laufwerksteuerung ...................................................................... 2-4Drive Control ................................................................................ 2-4
PlatinenabbildungenLayout of PCBs
und SchaltplŠne ................................ 3-1�3-56and Circuit Diagrams ........................ 3-1�3-56
VerdrahtungsplÅ ne...................................................................... 3-1Wiring Diagrams ......................................................................... 3-1
Netzteil ........................................................................................ 3-2Power Supply ............................................................................... 3-2
Bedieneinheit .............................................................................. 3-5Control Board .............................................................................. 3-5
Kopfhšrerplatte ............................................................................ 3-7Headphone Board ........................................................................ 3-7
Buchsenplatten ........................................................................... 3-9Socket Boards............................................................................. 3-9
MPEG-Platte � GDV 120 .......................................................... 3-12MPEG Board � GDV 120 .......................................................... 3-12
Laufwerkplatte � GDV 120 ........................................................ 3-21Drive Board � GDV 120 ............................................................ 3-21
MPEG-Platte � GDV 120/02 ..................................................... 3-29MPEG Board � GDV 120/02 ..................................................... 3-29
Laufwerkplatte � GDV 120/02 ................................................... 3-39Drive Board � GDV 120/02 ....................................................... 3-39
Oszillogramme ........................................................................... 3-47Oscillograms .............................................................................. 3-47
DC-Spannungen ........................................................................ 3-50DC Voltages ............................................................................... 3-50
ExplosionszeichnungenExploded Views and
und Ersatzteillisten ............................. 3-1�3-6Spare Parts Lists ................................. 3-1�3-6
aDolbyO, aDolby Pro LogicO, aAC 3O ist gefertigt unter Lizenz von Dolby LaboratoriesODolbyO, ODolby Pro LogicO, OAC 3� manufactured under license from Dolby
Licensing Corporation.Laboratories Licensing Corporation.
aDolbyO, aDolby Pro LogicO, aAC 3O und das Doppel-D-Symbol aO sind Warenzei-ODolbyO, ODolby Pro LogicO, OAC 3� and the double-D symbol O� are trademarks of
chen der Dolby Laboratories Licensing Corporation. Copyright 1992 Dolbythe Dolby Laboratories Licensing Corporation. Copyright 1992 Dolby Laboratories,
Laboratories, Inc. Alle Rechte vorbehalten.Inc. All rights reserved.
Allgemeiner TeilGeneral Section
MessgerÅ te / MessmittelTest Equipment / Jigs
RegeltrenntrafoZweikanaloszilloskopVariable isolating transformerDual channel oscilloscope
DigitalmultimeterMillivoltmeterDigital multimeterMillivoltmeter
FrequenzzÅ hlerFrequency counter
Beachten Sie bitte das Grundig Messtechnik-Programm, das Sie unterPlease note the Grundig Catalog "Test and Measuring Equipment"
folgender Adresse erhalten:obtainable from:
Grundig AG
GeschÅ ftsbereich Instruments
Test- und Messsysteme
Wźrzburger Str. 150, D-90766 Fźrth
Tel.: 0911 / 703-4118; Fax: 0911 / 703-4130
eMail: instruments@grundig.de
Internet: http:\\www.grundig-instruments.de
1 - 2GRUNDIG Service |