Sony HDW-750 Maintenance Manual page 279

Preparations
Preparation on unit's side
1. Check that the unit is in the unthreading-end
state.
2. Turn off the main power.
3. Remove the front lid and the outside panel
assembly. (Refer to Section 1-4.)
Preparation on tool's side
Remove the two screws that are supplied with the
drum install plate. (Fig. 1)
Install the drum install plate to the boss of the
flatness check tool with the two screws removed.
(Fig. 2)
n
The upper drum assembly can be replaced when
the cassette compartment attaches to the unit.
HDW-750/750CE V1
Fig. 1 Supplied screws
(B2 x 8)
Drum install plate
Fig. 2
Drum install plate
7-2. Upper Drum Assembly Replacement
Flatness check tool
Supplied screws
(B2 x 8)
Boss
Flatness check tool
7-9