Epson PX-8 - Page 268

REV.-A
Torque check cassette
The
proper torque is 5.0 - 11.0 g-cm.
Fig.6-15
6.6.2 Azimuth Adjustment
This is an important adjustment, required to maintain tape compatibility with other drives. When-
ever a read error frequently occurs or whenever the drive is repaired, the azimuth must be checked
and adjusted accordingly.
(1)
Setting-up
1 . Remove the cover of the azimuth hole of the
microcassette drive shown in Fig. 6-16.
2. Connect the jack connector to the external
speaker interface (SP OUT).
3.
Connect the probe of the oscilloscope to the
lead wire of the connector as shown in Fig.
6-17.
Azimuth hole cover
(adjustment
screw below)
Fig. 6-16
Fig. 6-17
* If the jack connector is not available, solder two lead wires from the MAP-MC board, CN 1 con-
nector pins 3 and 5, as shown in Fig. 6-18.
Solder the lead wires to pins 3 and 5 as
shown in Fig. 6-1 8.
20 01
40
o
o 0
o 0
o 0
o 0
o 0
o 0
o 0
019
MAP-Me board
RDSP GND
Fig.6-18 Additional Lead Wires for Azimuth
Adjustment
6-13