3
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707 P2V1
4-2-21. Replacement of the Component Parts of
the Threading Link Block ........................................................4-88
4-2-22. Replacement of Loading Motor .............................................4-102
4-2-23. Replacement of FE Head .......................................................4-107
4-2-24. Replacement of Tape Cleaner ................................................4-112
4-2-25. Replacement of Tape Guide................................................... 4-113
4-2-26. Mechanical Deck Replacement.............................................. 4-117
4-3. Mechanical Adjustment ..........................................................................4-118
4-3-1. Tension Regulator Operating Position Adjustment ...............4-118
4-3-2. FWD Back Tension Adjustment ............................................4-121
4-3-3. Brake Torque Check ..............................................................4-123
4-3-4. Belt Tension Adjustment........................................................ 4-125
5. Tape Path Adjustment
5-1. Tape Running Adjustment ..........................................................................5-3
5-2. Video Tracking Adjustment...................................................................... 5-11
5-3. CTL Head Height Adjustment ..................................................................5-16
5-4. CTL Head Position Adjustment................................................................ 5-18
5-5. CUE Head Height Adjustment.................................................................. 5-20
5-6. CUE Head Azimuth Check .......................................................................5-23
5-7. CUE Head Head-to-tape Contact Adjustment ..........................................5-25
5-8. CUE/TC Head Position Adjustment .........................................................5-27
5-9. CUE Output Level Check .........................................................................5-30
6. VTR System Alignment
6-1. Preparation ..................................................................................................6-1
6-2. Power System Adjustment ..........................................................................6-2
6-2-1. Battery End Detection Voltage Adjustment............................... 6-2
6-3. Servo System Adjustment........................................................................... 6-3
6-3-1. Automatic Servo Adjustment..................................................... 6-3
6-3-2. Automatic PG Phase Adjustment............................................... 6-4
6-3-3. MANUAL PG Phase Adjustment ..............................................6-4
6-4. Audio System Adjustment ..........................................................................6-5
6-4-1. D/A Level Adjustment ...............................................................6-5
6-4-2. Output Limiter Adjustment........................................................ 6-6
6-4-3. AGC Level Adjustment.............................................................. 6-6
6-4-4. CUE Playback Level Adjustment ..............................................6-7
6-4-5. CUE Recording Bias Adjustment ..............................................6-7
6-4-6. CUE Recording Level Adjustment ............................................6-8
6-5. Video System Adjustment........................................................................... 6-9
6-5-1. Preparation .................................................................................6-9
6-5-2. Playback Equalizer Automatic Adjustment .............................6-10
6-5-3. Recording Current Automatic Adjustment ..............................6-11