1
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P1
Table of Contents

Manual Structure

Purpose of this manual ..............................................................................................5
Contents..................................................................................................................... 6
Related manuals......................................................................................................... 6

1. Service Overview

1-1. Operating Conditions ..................................................................................1-1
1-2. Supplied Accessories ..................................................................................1-1
1-3. Main Part Locations and Circuit Functions ................................................1-2
1-3-1. Printed Circuit Board Locations................................................. 1-2
1-3-2. Circuit Functions........................................................................ 1-4
1-3-3. Mechanical Part Locations......................................................... 1-6
1-3-4. Sensor Locations and Functions................................................. 1-8
1-4. Matching Connectors ................................................................................1-10
1-5. Signal Inputs and Outputs......................................................................... 1-11
1-6. Removing/Reinstalling Outside Panel ......................................................1-14
1-7. Opening/Closing Inside Panel................................................................... 1-15
1-8. Removing/Reinstalling Cassette Compartment ........................................1-15
1-9. Removing/Reinstalling Plug-in Boards..................................................... 1-17
1-9-1. DCP/DVP Board Assembly .....................................................1-17
1-9-2. SV-210 Board........................................................................... 1-17
1-10. Switch/Slit Land Settings and LED Functions on the Boards..................1-18
1-10-1. AXM-21 Board........................................................................1-18
1-10-2. CNB-11 Board......................................................................... 1-19
1-10-3. DCP-17 Board..........................................................................1-20
1-10-4. DVP-17 Board..........................................................................1-21
1-10-5. HN-260 Board..........................................................................1-22
1-10-6. TC-101 Board...........................................................................1-23
1-10-7. TG-207 Board
(for DVW-790WS/790WSP/709WS/709WSP only)............... 1-24
1-10-8. DIF-75 Board (BKDW-702)....................................................1-25
1-11. Ejecting the Cassette Tape Manually........................................................1-26
1-12. Inserting the Cassette Tape With Outside Panel Removed.......................1-27
1-13. Cleaning When the Heads are Clogged....................................................1-27
1-14. Fixtures and Adjustment Equipment.........................................................1-28
1-15. Battery for Memory Backup.....................................................................1-28
1-16. Replacing the DC-DC Converter..............................................................1-28