Grundig Service Manual
Video Recorders
Introduction
This service manual supplement provides detailed technical information for Grundig video recorders, including models from the GV 740, GV 7497, SE 7106, GV 660, and GV 690 series. It complements the main service manual (Part No. 72010-527.35) and includes information on specific variants with RS 232 sockets.
Key sections cover product overviews, feature comparisons, detailed PCB layouts, wiring diagrams, and comprehensive spare parts lists.
Grundig Service Contact Information
Hotline Deutschland
Monday-Friday, 8:00 AM - 4:30 PM
- TV/SAT: 0180/52318-41
- VCR/LiveCam: 0180/52318-42
- HiFi/Audio: 0180/52318-43
- Car Audio: 0180/52318-44
- Telecommunication: 0180/52318-45
Fax
- 0180/52318-51
Spare Parts Ordering
- Telephone: 0180/52318-40
- Fax: 0180/52318-50
Product Overview and Features
Supported Models
- GV 740 HiFi, GV 740 NIC
- GV 7497 NIC, Madrid / SE 7106 HiFi
- GV 660 HiFi, GV 660 NIC
- GV 690 S HiFi, GV 690 S NIC
Key Features
- S-VHS recording and playback capabilities.
- HiFi Stereo audio.
- Megalogic system.
- Teletext functionality.
- Multiple timer functions and programming options (e.g., 6 Timer, SHOW VIEW).
- EURO-AV connections.
- RS232 socket for certain models.
- Child lock, dubbing, and insert editing features.
- Various input/output sockets including LINE, CVBS, S-VHS.
Technical Diagrams and PCB Layouts
This section provides detailed technical documentation through various diagrams:
- Wiring Diagrams: Illustrating the electrical connections between different components and boards.
- PCB Layouts: Showing the physical arrangement of components on printed circuit boards for key modules such as:
- Keyboard Control Unit (QDCG1/DC)
- Socket Board (QBG1)
- Family Boards (covering functions like Central Control, Deck Electronic, Video/Chroma, Head Amplifier, OSD, Tuner/Modulator)
- Power Supply Board (PS)
- Display Control Units
- Frontend/NICAM Decoder
- Supplemental Circuit Diagrams: Including specific circuits like the "Handshake" line for the RS 232 socket.
These diagrams are crucial for understanding the internal structure and troubleshooting the video recorders.
Spare Parts Lists
Comprehensive spare parts lists are provided, detailing part numbers, descriptions, and quantities for each model. An exploded view diagram illustrates the physical assembly of the video recorder, with numbered parts corresponding to the spare parts lists, aiding in identification and replacement.
