Koden DM - 602/604, Руководство пользователя

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3. Accuracy (Horizontal direction)
3-1. Receiving clock
a. Set the scale of “Range calibration control dial” on the control panel at 8.
b. Connect a frequency meter to TP-22 on 7000 PCB (for DM 602/4, TP-23 on C25-7000B PCB)
(Use a probe of 10:1)
c. Turn the slug of L1 (KT-800) to set at 3,000 MHz
(When there are 2 or more setting points, set at the point with more slug dropouts)
d. After completion of setting in above c., turn the “Range calibration control dial” to “0” and “10” to
confirm the following values:
Specification: At position “0” of the dial: 2.550 MHz or less
At position “10” of the dial: 3.150 MHz or more
3-2. Confirmation of recording accuracy
Confirm that the line gap of each marker is 5 mm for full width of recording paper. When there are
many errors, vary the VRI on 6000 PCB to set correctly.
Specification of accuracy: 5 ± 0.1 mm
3-3. Confirmation of recording uniformity
Confirm that there is no fluctuation as shown above.
Specification of accuracy: within ± 0.1 mm
Switching on “Manual mark switch”