Daewoo DR-C912B, Service Manual

Page: 29 / 132

27
MECHANICAL ADJUSTMENT
d. Make sure that the triangular mark A of the L LOADING Ass y
is aligned with the mark b of the R LOADING Ass y. (Fig. 4.4)
e. Reference hole C of the LOADING RACK should be aligned
with the reference hole of the R LOADING Ass y to make the
teeth of the LOADING RACK is aligned as shown in Fig. 4.4.
4. 2 ADJUSTMENT AND MEASUREMENT OF
THE BACK TENSION (FIG. 4.5, 4.6)
a. Check that the location of the TENSION POLE is in the right
position. if not, adjust that by refering to the 4.4 Adjustment of
the TENSION POLE position .
b. Play back the T-120 TAPE in S-MAX for 20 sec-
onds.(Generally tape transporting section is settled down in 20
seconds)
c. Measure the BACK TENSION by using the TENTELO METER
(Refer Fig 4.5) The result should be within the range of 20g ~
30g.
d. If the BACK TENSION is out of the range, change the position
of the TENSION SPRING of repeat the process of 4.4
Adjustment of the TENSION POLE position .(Fig. 4.6)
FIg. 4.4 Assembly reference between the LOADING RACK and
the LOADING LEVER ASS Y
CAUTION:
¥ If the measurement result greater than the upper limit,
change the hook point of the spring to position A
¥ Confirm that all of the three probes of TENTELO METER are
in contect with the tape.
¥ During measuring, don‘t touch any other parts of the
MECHANISM(i.e. MAINBASE). It is recommendedthat this
measurment be repeated at least three times for an accu-
rate reading.
FIg. 4.5 Measurement of the BACK TENSION