Sony DVW-250 - Page 4

2
DVW-250/250P
3. Maintenance Mode
3-1. Setup Menu .................................................................................................3-1
3-2. DIAG Menu ................................................................................................3-5
3-3. ISR.............................................................................................................3-12
4. Block Diagrams and Circuit Description
5. Periodic Maintenance and Inspection
5-1. Cleaning ......................................................................................................5-1
5-1-1. General Information for Cleaning ..............................................5-1
5-1-2. Cleaning of Tape Running Surface of Upper Drum
and Video Heads ........................................................................5-2
5-1-3. Cleaning of Tape Running Surface of Lower Drum
and Lead Surface ........................................................................5-3
5-1-4. Stationary Heads Cleaning .........................................................5-4
5-1-5. Cleaning of Tape Running System and Tape Cleaner ...............5-5
5-2. Periodic Check ............................................................................................5-6
5-2-1. Hours Meter ............................................................................... 5-6
5-2-2. Periodic Check List ....................................................................5-6
DVW-250/250P Periodic Replacement List ..............................5-7
5-3. Cares after Using at Special Environment ..................................................5-8
6. Replacement of Mechanical Parts
6-1. General Information for Mechanical Part Replacement .............................6-1
6-1-1. Caution .......................................................................................6-1
6-1-2. Threading End/ Unthreading End Mode ....................................6-2
6-1-3. Parts Location of Periodical Replacement Parts ........................6-4
6-1-4. Other Cautions ........................................................................... 6-5
6-1-5. Reel Table Position ....................................................................6-7
6-2. Brush Replacement .....................................................................................6-9
6-3. Slip Ring Assembly Replacement .............................................................6-12
6-4. Upper Drum Assembly Replacement........................................................6-14
6-5. Drum Assembly Replacement...................................................................6-21
6-6. Driving Belt Replacement .........................................................................6-27
6-7. Pinch Roller Arm Assembly Replacement ...............................................6-29
6-8. Video Head Cleaning Roller Replacement ...............................................6-31
6-9. Cue Brush Replacement ............................................................................6-34
6-10. Pinch Solenoid Assembly Replacement....................................................6-35
6-11. Tension Regulator Roller Replacement ....................................................6-37
6-12. S Reel Brake Solenoid Replacement.........................................................6-41