3-42
DNW-A220
DNW-A220P
For Condition NG
Confirm, recheck, and perform the drum (video heads) cleaning according to the procedures below.
(1) Change the tape playback portion, then recheck.
If no abnormality is found, the recheck is completed.
(2) Perform the cleaning using a cleaning tape (in Section 4-2-1) (the amount of the tape used is five
seconds), then recheck.
If no abnormality is found, the recheck is completed.
(3) Perform the cleaning using a cleaning tape again (the amount of the tape used is 15 seconds), then
recheck.
If no abnormality is found, the recheck is completed.
(4) Perform the cleaning with cleaning cloth (in Sections 4-2-2), then recheck.
If no abnormality is found, the recheck is completed.
If the condition described above is not improved, the abnormality below is considered to have
occurred.
Abnormality on PB tape
.
The tape is damaged.
.
The tape cannot be recorded properly.
Abnormality in this unit
.
Adjustment defect of Betacam PB system (DM-114 board)
8
Readjust the Betacam PB system. (A3 : BETACAM PB ADJUST)
(Refer to the maintenance manual part 2, volume-1.)
.
Adjustment defect in tape transport system or component part installation defect.
8
Readjust the tape transport system or reinstall the parts.
(Refer to the maintenance manual part 2, volume-1.)
.
Worn PB head
8
After confirming the hours meter (H2 : DRUM RUNNING HOURS), replace the upper drum
assembly as required.
(Refer to the maintenance manual part 2, volume-1.)
.
Drum assembly defect
.
EQ-72 board defect
3-2. TAPE Maintenance Mode (M0)
3-2-5. BETACAM PB CHECK Mode (C3)
