Grundig GV 505 EURO, Service Manual

Page: 2 / 116

1 - 2 GRUNDIG Service
Partie générale / General
The regulations and safety instructions shall be valid
as provided by the "Safety" Service Manual, part
number 72010-800.00, as well as the respective
national deviations.
II y a lieu d'observer les recommandations et les
prescriptions de sécurité de I'Instruction de Service
"Sécurité" Réf. N
°
72010-800.00 ainsi que les
prescriptions spécifiques à chaque pays!
GB
Table of Contents
Page
General ................................................. 1-1…1-26
Video Recorder Overview ................................................................ 1-3
Test Equipment / Aids ...................................................................... 1-5
Specifications ................................................................................... 1-5
Operating Elements ......................................................................... 1-7
Tables of Norms and Channels .................................................... 1-15
Service Instructions ........................................................................ 1-17
Service and Special Functions ....................................................... 1-21
Descriptions .......................................... 2-1…2-12
Power Supply (OSM…) .................................................................... 2-1
Family Board (OFB2) ....................................................................... 2-3
• Deck Control / Deck Electronic (DE) ............................................. 2-3
• Frontend (FV) ................................................................................ 2-5
• IN/OUT, VPS (IO) ......................................................................... 2-6
• Video/Chroma (VS) ....................................................................... 2-7
• Standard Sound / Audio Linear (AL) ............................................. 2-9
Family Board II (OSIO) .................................................................. 2-10
• Sequence Control (CO) .............................................................. 2-10
• Follow TV (IO) ............................................................................. 2-11
• OSD ............................................................................................ 2-11
• SECAM L (VS) ............................................................................ 2-11
Keyboard Control Unit (ODCG…) .................................................. 2-12
Adjustment Procedures ......................... 3-4…3-6
Power Supply (OSM…) .................................................................... 3-4
Family Board (OFB2) ....................................................................... 3-4
• Deck Control / Deck Electronic (DE) ............................................. 3-4
• Frontend (FV) ................................................................................ 3-5
• Video/Chroma (VS) ....................................................................... 3-5
• Standard Sound / Audio Linear (AL) ............................................. 3-6
Family Board II (OSIO) – OSD ......................................................... 3-6
Keyboard Control Units (ODCG…) .................................................. 3-6
Layout of the PCBs
and Circuit Diagrams .......................... 4-1…4-54
Abbreviations ................................................................................... 4-1
Wiring Diagram ................................................................................ 4-3
Block Circuit Diagrams (Analog / Digital) ......................................... 4-5
Power Supply (OSM…) .................................................................. 4-11
Tape Deck Sensor Panel ............................................................... 4-19
Family Board (OFB2) ..................................................................... 4-15
• Deck Control / Deck Electronic (DE) ........................................... 4-21
• Frontend (FV) .............................................................................. 4-23
• IN/OUT, VPS (IO) ....................................................................... 4-26
• Video/Chroma (VS) ..................................................................... 4-29
• Standard Sound / Audio Linear (AL) ........................................... 4-32
Family Board II (OSIO) .................................................................. 4-33
• Sequence Control (CO) .............................................................. 4-34
• OSD ............................................................................................ 4-35
• Follow TV, IN/OUT II (IO) ............................................................ 4-36
• SECAM - L (VS) .......................................................................... 4-37
Head Amplifier Board (OHA) .......................................................... 4-38
• Head Amplifier ............................................................................ 4-39
• Headwheel Motor Control ........................................................... 4-40
Keyboard Control Unit (ODCG1) ................................................... 4-41
Keyboard Control Unit (ODCG3 / ODCG31) .................................. 4-45
Keyboard Control Unit (ODCG4 / ODCG41) .................................. 4-49
Oscillograms .................................................................................. 4-53
Drive Mechanism ................................. 5-1…5-12
Test Equipment / Aids ...................................................................... 5-1
Service Instructions .......................................................................... 5-2
Replacement of Tape Deck Components ........................................ 5-3
Adjustments ................................................................................... 5-10
Exploded Views and
Spare Parts List .................................. E-1…E-28
F
Sommaire
Page
Partie générale ...................................... 1-1…1-26
Composition des appareils ............................................................... 1-3
Appareils de mesure / Moyens de maintenance .............................. 1-5
Caractéristiques techniques ............................................................. 1-5
Eléments de commande .................................................................. 1-7
Tableaux des normes et des canaux ............................................ 1-15
Instructions pour la maintenance ................................................... 1-17
Fonctions de service et fonctions spéciales ................................... 1-21
Descriptions des circuits ....................... 2-1…2-12
Alimentation (OSM…) ...................................................................... 2-1
Circuit principal (OFB2) .................................................................... 2-3
• Commande et Gestion mécanique (DE) ....................................... 2-3
• Etage FI EURO (FV) ..................................................................... 2-5
• IN/OUT, VPS (IO) ......................................................................... 2-6
• Vidéo/Chroma (VS) ....................................................................... 2-7
• Son Mono / Audio Linéaire (AL) .................................................... 2-9
Circuit principal II (OSIO) ............................................................... 2-10
• Procédure servo (CO) ................................................................. 2-10
• Follow TV (IO) ............................................................................. 2-11
• OSD ............................................................................................ 2-11
• SECAM L (VS) ............................................................................ 2-11
Module de commande (ODCG…) .................................................. 2-12
Prescriptions d'alignements ................... 3-1…3-3
Alimentation (OSM…) ...................................................................... 3-1
Circuit principal (OFB2) .................................................................... 3-1
• Procédure servo / Gestion mécanique (DE) ................................. 3-1
• Etage FI EURO (FV) ..................................................................... 3-2
• Vidéo/Chroma (VS) ....................................................................... 3-2
• Son Mono / Audio Linéaire (AL) ................................................... 3-3
Circuit principal II (OSIO) – OSD ..................................................... 3-3
Modules de commande (ODCG…) .................................................. 3-3
Représentation des circuits imprimés
et des schémas électriques .................... 4-1…4-54
Abréviations ..................................................................................... 4-1
Plan des connexions ........................................................................ 4-3
Synoptiques des circuits imprimés (Analogique / Digital) ................ 4-5
Alimentation (OSM…) .................................................................... 4-11
C.I. capteurs de mécanique ........................................................... 4-19
Circuit principal (OFB2) .................................................................. 4-15
• Procédure servo / Gestion mécanique (DE) ............................... 4-21
• Etage FI EURO (FV) ................................................................... 4-23
• IN/OUT, VPS (IO) ....................................................................... 4-26
• Vidéo/Chroma (VS) ..................................................................... 4-29
• Son Mono / Audio Linéaire (AL) .................................................. 4-32
Circuit principal II (OSIO) ............................................................... 4-33
• Procédure servo (CO) ................................................................. 4-34
• OSD ............................................................................................ 4-35
• Follow TV, IN/OUT II (IO) ............................................................ 4-36
• SECAM - L (VS) .......................................................................... 4-37
C.I. Ampli de têtes (OHA) .............................................................. 4-38
• Ampli de têtes ............................................................................. 4-39
• Commande moteur ampli de têtes .............................................. 4-40
Module de commande (ODCG1) ................................................... 4-41
Module de commande (ODCG3 / ODCG31) ................................. 4-45
Module de commande (ODCG4 / ODCG41) ................................. 4-49
Oscillogrammes ............................................................................. 4-53
Platine mécanique ................................. 5-1…5-12
Appareils de mesure / Moyens de maintenance .............................. 5-1
Instructions pour la maintenance ..................................................... 5-2
Remplacement d'éléments de la mécanique ................................... 5-3
Réglages ........................................................................................ 5-10
Vues éclatées et Liste
de pièces détachées ..............................E-1…E-28