Moisture Condensation; Regular Checks; Digital Hours Meter - Sony Betacam SX DNW-A28 Operation Manual

Moisture Condensation

When the unit is suddenly moved from a cold to a
warm location, or used in a very humid place, moisture
from the air can condense on the head-drum. This is
called moisture condensation. If the tape is run in this
state, it can adhere to the drum. To prevent such a
condition from occurring, the unit is provided with a
moisture detecting function.
If this happens, the drum and capstan motors stop.
Then, the drum starts to rotate again to dry its surface.
In this state, the unit is not operable. When the
moisture has evaporated, the error message disappears
and the WARNING indicator goes out.

Regular Checks

Digital Hours Meter

The hours meter can display seven items of
information, in corresponding display modes, about
the operational history of the unit. Use it as a guide in
scheduling periodic maintenance.
Display modes of the hours meter
H01: OPERATION mode
Displays the total number of hours the unit has been
powered on in units of 1 hour.
H02: DRUM RUNNING mode
Displays the total number of hours the drum has run
with tape threaded in units of 1 hour.
H03: TAPE RUNNING mode
Displays the total number of hours the unit has been in
fast forward, rewind, playback, search, recording or
editing (except for stop and still) mode in units of 1
hour.
If "ERROR-10" appears and the WARNING
indicator lights immediately after powering the
unit on
Leave the unit powered on and wait until the indicator
goes out.
While the indicator is lit, you cannot insert a cassette.
When the indicator goes out and the error message
disappears, you can use the unit.
If you move the unit from a cold to a warm
location
Leave the unit powered off for about 10 minutes, in
order to give the unit time to detect moisture
condensation.
If you move the tape from a cold to a warm
location
There may be moisture condensation on the tape. Wait
until the tape warms.
H04: THREADING mode
Display the total number of times tape has been
threaded in the unit.
H12: DRUM RUNNING mode (resettable)
Same as H02 except that the count is resettable.
This can be used as a guide in determining when to
replace the drum.
H13: TAPE RUNNING mode (resettable)
Same as H03 except that the count is resettable.
This can be used as a guide in determining when to
replace such components as stationary heads and pinch
roller.
H14: THREADING mode (resettable)
Same as H04 except that the count is resettable.
This can be used as a guide in determining when to
replace, for example, the threading motor.
A-3
Appendixes