Teac MT-20D-IO - Page 162

4-3-18 Check of erase level
(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) Load the work tape on MTU.
(e) Key in "C91F". The tape is wound forward and reversely.
(d) The erase level is indicated to the display DATA 1 on SOA.
(e) Check if the erase level is less than 0.161 V.
"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) Load the work tape on MTU.
(e) Key in "C91F". The tape is wound forward and reversely.
(d) The erase level is indicated to the display DATA 1 of SOA.
(e) Check if the erase level is less than 0.223 V.
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