
1 - 2 GRUNDIG Service
Allgemeiner Teil / General GV 411-2
Es gelten die Vorschriften und Sicherheitshinweise
gemäßdemServiceManual"Sicherheit",Sach-Num-
mer 72010-800.00, sowie zusätzlich die eventuell
abweichenden, landesspezifischen Vorschriften!
Theregulationsandsafetyinstructionsshallbevalid
as provided by the "Safety" Service Manual, part
number 72010-800.00, as well as the respective
national deviations.
GB
Table of Contents Page
General ................................................. 1-1…1-14
Video Recorder Overview ............................................................ 1-3
Test Equipment / Jigs .................................................................. 1-4
Specifications............................................................................... 1-4
Operating Elements ..................................................................... 1-6
Service Instructions...................................................................... 1-7
Service Test Programme and Special Functions....................... 1-11
Descriptions.......................................... 2-1…2-10
Power Supply (NSM) ................................................................... 2-1
Family Board (OFB3) ................................................................... 2-1
• Sequence Control / Deck Electronic (DE)................................. 2-1
• Frontend (FV)............................................................................ 2-3
• IN/OUT (IO)............................................................................... 2-4
• Video / Chroma (VS)................................................................. 2-4
• Audio (AF)................................................................................. 2-7
NICAM Decoder (ONIC) .............................................................. 2-9
Keyboard Control Unit (ODCE1)................................................ 2-10
Adjustment Procedures......................... 3-4…3-6
Power Supply (NSM) ................................................................... 3-4
Family Board (OFB3) ................................................................... 3-4
• Sequence Control / Deck Electronic (DE)................................. 3-4
• Frontend (FV)............................................................................ 3-5
• Video / Chroma (VS)................................................................. 3-5
• Audio (AF)................................................................................. 3-6
Keyboard Control Unit (ODCE1).................................................. 3-6
Layout of the PCBs
and Circuit Diagrams.......................... 4-1…4-46
Abbreviations ............................................................................... 4-1
Wiring Diagram ............................................................................ 4-3
Block Circuit Diagrams (Analog / Digital) ..................................... 4-5
Power Supply (NSM) ................................................................. 4-11
Tape Deck Sensor Panel ........................................................... 4-19
Family Board (OFB3) ................................................................. 4-15
• Sequence Control / Deck Electronic (DE)............................... 4-21
• Frontend (FV).......................................................................... 4-23
• IN/OUT (IO)............................................................................. 4-25
• Video / Chroma (VS)............................................................... 4-27
• Audio (AF)............................................................................... 4-29
Family Board II – IN/OUT II (OIO).............................................. 4-32
NICAM Decoder (ONIC) ............................................................ 4-34
Head Amplifier Board (OHA)...................................................... 4-37
• Head Amplifier ........................................................................ 4-38
• Headwheel Motor Control ....................................................... 4-39
Keyboard Control Unit (ODCE1)................................................ 4-41
Oscillograms .............................................................................. 4-45
Drive Mechanism................................. 5-1…5-12
Test Equipment / Jigs .................................................................. 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-13
D
Inhaltsverzeichnis Seite
Allgemeiner Teil................................... 1-1…1-14
Geräteübersicht ........................................................................... 1-3
Meßgeräte / Meßmittel................................................................. 1-4
Technische Daten ........................................................................ 1-4
Bedienelemente ........................................................................... 1-5
Servicehinweise ........................................................................... 1-7
Servicetestprogramm und Sonderfunktionen............................. 1-11
Beschreibungen.................................... 2-1…2-10
Netzteil (NSM).............................................................................. 2-1
Chassisplatte (OFB3)................................................................... 2-1
• Ablaufsteuerung / Deck-Elektronik (DE) ................................... 2-1
• Empfangseinheit (FV) ............................................................... 2-3
• IN/OUT (IO)............................................................................... 2-4
• Video / Chroma (VS)................................................................. 2-4
• Audio (AF)................................................................................. 2-7
NICAM-Decoder (ONIC) .............................................................. 2-9
Bedieneinheit (ODCE1) ............................................................. 2-10
Abgleich .................................................. 3-1…3-3
Netzteil (NSM).............................................................................. 3-1
Chassisplatte (OFB3)................................................................... 3-1
• Ablaufsteuerung / Deck-Elektronik (DE) ................................... 3-1
• Empfangseinheit (FV) ............................................................... 3-2
• Video / Chroma (VS)................................................................. 3-2
• Audio (AF)................................................................................. 3-3
Bedieneinheit (ODCE1) ............................................................... 3-3
Platinenabbildungen
und Schaltpläne ................................... 4-1…4-46
Abkürzungen................................................................................ 4-1
Verdrahtungsplan......................................................................... 4-3
Blockschaltpläne (Analog / Digital) .............................................. 4-5
Netzteil (NSM)............................................................................ 4-11
Laufwerkplatte – Sensoreneinheit.............................................. 4-19
Chassisplatte (OFB3)................................................................. 4-15
• Ablaufsteuerung / Deck-Elektronik (DE) ................................. 4-21
• Empfangseinheit (FV) ............................................................. 4-23
• IN/OUT (IO)............................................................................. 4-25
• Video / Chroma (VS)............................................................... 4-27
• Audio (AF)............................................................................... 4-29
Chassisplatte II – IN/OUT II (OIO) ............................................. 4-32
NICAM-Decoder (ONIC) ............................................................ 4-34
Kopfverstärkerplatte (OHA)........................................................ 4-37
• Kopfscheibenmotoransteuerung ............................................. 4-38
• Kopfverstärker......................................................................... 4-39
Bedieneinheit (ODCE1) ............................................................. 4-41
Oszillogramme ........................................................................... 4-45
Laufwerk .............................................. 5-1…5-12
Meßgeräte / Meßmittel................................................................. 5-1
Servicehinweise ........................................................................... 5-2
Auswechseln von Laufwerksteilen ............................................... 5-3
Einstellungen ............................................................................. 5-10
Explosionszeichnungen
und Ersatzteilliste ............................... E-1…E-13