CHAPTER 4
Type 4606 Features and Functions
45
10) Set B on the cradle positioner joint to 0
and lock it with the locking knob (see
Fig.4.9.8).
11) Set
C on the other joint to –10
without locking it and fit the socket for the cradle onto
the end of the support arm, tightening the locking screw hand tight (see Fig.4.9.9).
12) Gently move the mounting bracket towards the top of the HATS until
C reads zero. Now
use the locking knob to lock it in position. There should be a thin gap (<1 mm) between the
top of the head of the HATS and the four screw studs (see Fig.4.9.11).
Note: Check the cradle positioner barrel to ensure that it is still set at the ERP position.
13) Use Feeler Gauge QX-1253 (Fig.4.2.5) to set the gap between the four screw studs and the
top of the HATS head to 0.05 mm (see Fig.4.9.12).
14) Now use the supplied M3 allen bolts and washers to bolt the mounting bracket to the top of
the HATS head.
The mounting bracket should now be correctly mounted.
To remove the calibration tool:
1) Remove the allen bolt holding the support arm and ear brick together.
2) Unlock the quick release on the cradle positioner barrel and slide the support arm/ear brick
assembly out of the pinna socket.
3) Detach the support arm from the joint it is mounted in on the cradle positioner assembly.
4) Using Ear Mounting Tool QA-0167 (Fig.1.1.3), remove Mounting Collar DB-3781
(Fig.4.7.4) and remount Microphone Retaining Collar DB-3201. Finally refit the rubber
pinna.
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