GRUNDIG Service
Xenaro – GDP 42…
1 - 2
Table of Contents
Page
General Section .................................... 1-2…1-6
Test Equipment / Jigs .................................................................. 1-2
Specifications ............................................................................... 1-3
Service Instructions ...................................................................... 1-4
Disassemly Instructions ............................................................... 1-4
Software Upgrade ........................................................................ 1-6
Initialization of the Set .................................................................. 1-6
Service and Special Funtions ............. 2-3…2-4
Service Menu ............................................................................... 2-3
Layout of PCBs
and Circuit Diagrams ......................... 3-1…3-26
Wiring Diagram ............................................................................ 3-1
Block Circuit Diagram .................................................................. 3-2
Oscillograms ................................................................................ 3-3
Connection Overview ................................................................... 3-5
Main Board ................................................................................... 3-6
• Main Circuit Diagram (M1) ........................................................ 3-8
• Frontend (M2) ........................................................................... 3-9
• FLASH (M3) ............................................................................ 3-10
• SDRAM (M4) ........................................................................... 3-10
• Audio (M5) .............................................................................. 3-11
• Video (M6) .............................................................................. 3-12
• Interface (M7) .......................................................................... 3-13
Power Supply ............................................................................. 3-14
Keyboard Control Units .............................................................. 3-16
IC Block Diagrams ..................................................................... 3-18
Exploded View and
Spare Parts Lists ................................. 4-1…4-4
Inhaltsverzeichnis
Seite
Allgemeiner Teil ................................... 1-2…1-6
Messgeräte / Messmittel .............................................................. 1-2
Technische Daten ........................................................................ 1-3
Servicehinweise ........................................................................... 1-4
Ausbauhinweise ........................................................................... 1-4
Software-Upgrade ........................................................................ 1-6
Initialisierung des Gerätes ........................................................... 1-6
Service- und Sonder-Funktionen ........ 2-1…2-2
Servicemenü ................................................................................ 2-1
Platinenabbildungen
und Schaltpläne ................................. 3-1…3-26
Verdrahtungsplan ......................................................................... 3-1
Blockschaltplan ............................................................................ 3-2
Oszillogramme ............................................................................. 3-3
Steckerübersicht .......................................................................... 3-5
Hauptplatte ................................................................................... 3-6
• Hauptschaltplan (M1) ................................................................ 3-8
• Frontend (M2) ........................................................................... 3-9
• FLASH (M3) ............................................................................ 3-10
• SDRAM (M4) ........................................................................... 3-10
• Audio (M5) .............................................................................. 3-11
• Video (M6) .............................................................................. 3-12
• Interface (M7) .......................................................................... 3-13
Netzteil ....................................................................................... 3-14
Bedieneinheiten ......................................................................... 3-16
IC-Blockdiagramme ................................................................... 3-18
Explosionszeichnung
und Ersatzteillisten .............................. 4-1…4-4
General Section
Test Equipment / Jigs
Variable isolating transformer
Dual channel oscilloscope
Digital multimeter
Allgemeiner Teil
Messgeräte / Messmittel
Regeltrenntrafo
Zweikanaloszilloskop
Digitalmultimeter