1
DVW-250/250P
Table of Contents
Manual Structure
Purpose of this manual .............................................................................................. 7
Contents ..................................................................................................................... 7
Relative manual ......................................................................................................... 8
1. Service Overview
1-1.
Operating Conditions .................................................................................. 1-1
1-2.
Locations of Main Part and Functions of Printed Circuit Board ................ 1-2
1-2-1.
Functions of Printed Circuit Board and
Printed Circuit Board Location .................................................. 1-2
1-2-2.
Main Mechanical Part Locations ............................................... 1-5
1-2-3.
Function and Location of Sensors .............................................. 1-6
1-3.
Matching Connectors .................................................................................. 1-8
1-4.
Signal Input/Output ..................................................................................... 1-9
1-5.
Removal/Installation of Cabinet ............................................................... 1-12
1-6.
Cassette Compartment Removal/Installation ............................................ 1-14
1-7.
Connector Panel Removal/Installation ...................................................... 1-14
1-8.
Battery Terminal Replacement ................................................................. 1-15
1-9.
Fuse Replacement ..................................................................................... 1-15
1-10. Switch/Slit Land Settings on the Boards ................................................... 1-16
1-10-1. CP-260 board ........................................................................... 1-16
1-10-2. ADA-44 board .......................................................................... 1-18
1-10-3. DIF-31 board ............................................................................ 1-19
1-10-4. DPR-62 board ........................................................................... 1-20
1-10-5. EQ-54 board ............................................................................. 1-21
1-10-6. SST-3 board ............................................................................. 1-22
1-10-7. VPR-12 board ........................................................................... 1-23
1-11. Ejecting the Cassette Tape Manually ........................................................ 1-24
1-12. Cleaning when the Heads are Clogged ..................................................... 1-25
1-13. Tracking/Audio Meter Adjustment ........................................................... 1-25
1-13-1. Tracking Adjustment ................................................................ 1-25
1-13-2. Audio Meter Contrast Adjustment ........................................... 1-25
1-14. Optional Accessories ................................................................................. 1-25
1-14-1. Optional Accessories ................................................................ 1-25
1-14-2. Fixture ...................................................................................... 1-26
1-14-3. Measuring Equipment .............................................................. 1-29
2. Error Messages
2-1.
Error Message ............................................................................................. 2-1