Replacement Of Periodic Replacement Part; Upper Drum Assembly Replacement - Sony Betacam SX DNV-5 Maintenance Manual

3-2. Replacement of Periodic Replacement Part

3-2-1. Upper Drum Assembly Replacement

3-2. Replacement of Periodic Replacement Part
3-2-1. Upper Drum Assembly Replacement
Outline
Replacement
Brush cover removal
Brush assembly removal
Slip ring assembly removal
Upper drum assembly removal
Installation surface cleaning
Upper drum assembly installation
Slip ring assembly installation
Brush assembly installation
Brush cover installation
Head and tape running path cleaning
Adjustment after replacement
Tape running adjustment
Video tracking adjustment
CTL head height confirmation
CTL head position adjustment
TC head height confirmation
TC head position adjustment
PG phase adjustment
Servo automatic adjustment
Video system adjustment (equalizer)
Precaution
Replace the upper drum assembly when the rotary head is worn or damaged. The
upper drum assembly cannot be replaced by only the head chip.
Basic knowledge
For except periodic replacement, replace the upper drum assembly in the following
case.
. When correct RF waveforms can not be obtained even if the tracking adjustment
is performed
Preparations
1. Confirm that the unit is in the unthreading end state.
2. Turn off the power.
3. Remove the front lid and outside panel.
(Refer to section 1-6 in Part 1 of the Maintenance Manual.)
n
The upper drum assembly can be replaced with the cassette compartment installed in
the unit.
3-8
DNV-5
DNW-7/90/90WS