Teac MT-20D-IO - Page 142

"30 ips"
(3) Check and adjustment procedures
(a) Connect SOA in accordance with Item 4-2-5, and set the POWER
switch to the PSA side (it is not required to connect a check
cable C).
(b) Load the work tape on MTU.
(c) Connect the oscilloscope to TP8 on the PCBA Drive Control.
(d) Key in "A63F".
(e) Check if the waveform shown in Fig. 428 appears at TP8.
Clipped portion
TP8
u
t
Approx. 9 ms
Fig. 428 Check of AGC operation
(f) If the clipped portion shown in Fig. 428 does not appear, check if
the strap Sl is open and S2 is shorted on the PCBA Drive Control.
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