Teac MT-20D-IO Maintenance Manual page 136

(b)
8 Key in "F" to stop the operation.
9
Key in "A2l", and further "I", and adjust the variable
resistor
R17
(Fig.
336)
until the burst signal VI is within
1.3
to 2 Vpp (Fig. 42S).
. r - - - '
,--I I
I I I
Vi V2 V3
va
V5
v6lv7}--
I I I
Vi V2 V 3 1 - - - - - -
I I I
L.---"l.. _ _
~
(i) Track
0
(ii) Track 1,2
Note
Fig. 42S Burst signal
Be careful since the measuring range of the alignment
becomes narrower, if VI does not reach
1.3
V according to
the characteristics of the head and alignment tape.
Check for the head alignment in the following procedure:
1
Key in "0" or "1" to wind the tape nearly to the winding
center, and then key in "F".
2
Key in "A20" .
3
Key in "BS", and read the DATA on display of track
O.
Display DATA 2
Off track
1 +.\ I
(mm)
4
Key in "A2l".
S
Key in "BS", and read the DATA on display of track 1.
Display DATA 1 Azimuth
1+1
.1
I
(MINT)
Display DATA 2
Off track
I + J
I I
(nun)
6 Key in "A22".
7
Key in "BS" • and read the DATA on display of track 2.
Display DATA 1 Azimuth
1+1
.1
(MINT)
Display DATA 2
Off track
I +.1
I
(nun)
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