Drum Replacement - Sony DSR-2000 Service Manual

7-2. Drum Replacement

Outline
Replacement
Removing the MD cover
Disconnecting the connectors
Removing the head cleaner assembly
Replacing the drum assembly
Reattaching the head cleaner assembly
Reconnecting the connectors
Reattaching the MD cover
Cleaning the heads and tape running surface
Adjustment after replacement
Tape path adjustment
RF switching position adjustment
EQ adjustment
Note
Take care not to damage the tape guides around the drum assembly, tape running
surface on the drum, video heads of the drum assembly and so on when replacing
the drum assembly.
Basic knowledge
Besides the periodic replacement, replace the drum assembly in the following cases.
. When no proper RF waveform can be obtained even if tracking adjustment is
performed.
. When the damaged tape running surface on the drum cannot be recovered.
Preparations
1. Set the unit into the unthreading end status.
2. Power off the unit.
3. Remove the top plate. (Refer to Section 3-3.)
4. Remove the bottom plate. (Refer to Section 3-3.)
5. Remove the right side plate. (Refer to Section 3-3.)
6. Remove the cassette compartment assembly. (Refer to Section 3-4.)
Tool
. Cleaning cloth :
. Cleaning fluid :
. Torque screwdriver bit (for M1.4) :
. Torque screwdriver (for 3 kgf.cm) :
DSR-2000/2000P
3-184-527-01
9-919-573-01
J-6325-110-A
J-6325-400-A
7-2. Drum Replacement
7-3