Teac A-3340S - Page 28

Fine Adjustment:
NOTE: It is absolutely essential to accomplish the coarse ad-
justment before performing the fine adjustment to avoid phase
error larger than 45°
7. Connect the test equipment as shown in Fig. 11-1.
8. Apply a 7.5 kHz signal at -28 dB to the LINE IN jacks and record
this signal.
9. Carefully adjust the azimuth screw until the oscilloscope shows
the signal to be in phase.
10, Secure the screw with a drop of LOCTITE,.
- Phase Shift |
Fig. 11-5 Phase shift |
Refer to Fig. li-l Fine Adjustment Set-up (playback)
RECORD LEVEL SET
1
Using Scotch 203 tape, BIAS/EQ switch at HIGH position.
Apply a 400 Hz signal at -8 dB at the LINE IN jacks.
2. OUTPUT controls must be at specified output level position
(0 dB at OUTPUT jacks), and the LINE controls at the EpeeuEaee
Input Level Setting.
3. Place unit in record mode, OUTPUT switches in the TAPE position.
4. Adjust VR-303/306 for a redding of O VU on the VU meters.
' (0 dB at the OUTPUT jacks).