Teac MT-20D-IO - Page 160

4-3-17 Check of resolution
(1) Articles to be used
(a) Work tape
(b) SOA
(c) DC power supply (+12 V, +5 V)
"Permalloy Head"
(2) Check procedure
(a) Connect SOA in accordance with Item 4-2-5, and set the POWER
switch to the PSA side.
(b) Erase the work tape used with the bulk eraser, or erase the
portion to be used for check over some length by using MTU.
(c) Load the erased work tape on MTU.
Cd) Key in "A22". The write/read track of MTU is changed over to
Track 2.
(e) Key in "C5". The measured value of resolution is indicated to the
display DATA 1 on SOA.
(f) Check if the resolution is 35% or more.
(g) Key in "A21". The write/read track on MTU is changed over~ to
Track 1.
Perform the same check as in steps (e) and (f).
"Ferrite Head"
(3) Check procedure
(a) Connect SOA in accordance with Item 4-2-5, and set the POWER
switch to the PSA side.
(b) Erase the work tape used with the bulk eraser or erase the portion
of tape to be used for check over some length by using MTU.
(c) Load the erased work tape on MTU.
(d) Key in "A22". The write/read track on MTU is changed over to
Track 2.
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