Checking Drum Time; Backup Memory Initialization; Checking Version Numbers - Tascam DA-78HR Owner's Manual

11 - Maintenance, etc.
4 Play the suspect tape. The track meters are
used to show the error rate at different loca-
tion, as listed below:
Tape edge (head A)
Tape edge (head B)
The number of segments lit indi-
96-128 cates the blocks containing
88-95
errors (per group of 128 blocks),
80-87
as shown here.
72-79
64-71
It is inevitable that there will be
56-63
48-55
a few errors, but if the meter
40-47
segments are consistently lit
32-39
while the tape is playing, some-
24-31
16-23
thing is wrong (and you will
6-15
almost certainly be able to hear
0-7 (none lit)
it!).
Use this display to show where
the tape is in error, and which head is causing errors.
In this way, you can pinpoint any trouble.
If playing another tape seems to remove the errors,
the problem is with the tape, otherwise you may want
to clean the heads (11.1, "Head and transport clean-
ing"). Remember not to clean the heads more than 5
times in a row.
NOTE
If, after trying different tapes and cleaning the heads,
you still see many errors, you should contact a
TASCAM service technician to check your DA-78HR.
5 Use the
and keys to turn off the error dis-
play and use the meters for their normal
functions.

11.1.3 Checking drum time

This function allows you to check the number of
hours that the drum has been used overall, as well as
in fast forward or rewind (search) mode.
1 Press the
SHIFT key so that the
is flashing, and press the
69
TASCAM DA-78HR
Tape center (head A)
Tape center (head B)
SHIFT indicator
MENU key until the
display shows
maintenance).
2 Press the
SUB MENU
briefly shows
time) . The display then changes.
3 Use the
and keys to choose between
( D xxxx —total drum time) and
( D.S.xxxx
xxxx represents the time in hours shown beside
the appropriate parameter.

11.2Backup memory initialization

The DA-78HR includes non-volatile memory
(NVRAM) which preserves almost all user settings
after the power is turned off.
To reset these settings to their default values (defaults
are listed in 4, "Menu interface, etc."):
1 Press the
SHIFT
key so that the
is flashing, and press the
display shows
maintenance).
2 Press the
SUB MENU
shows ( INIT ) .
3 Press either
or to change the display to
show ( READY
4 Press either
or once again to initialize all
the stored parameters to the factory settings.
The unit will show
start (as if power had just been turned on).

11.3Checking version numbers

In case of problems, you may need to quote the ver-
sion number of the DA-78HR's internal software
components to a TASCAM representative.
There are three major components of the DA-78HR's
internal software: system, front panel and servo.
Each of these can be checked independently.
1 Press the
SHIFT
key so that the
is flashing, and press the
display shows
maintenance).
2 Press the
SUB MENU
briefly shows
changes to either
system software),
MAINTN--
( —
key until the display
( DRUM TIM —drum
—drum search time).
SHIFT
indicator
MENU key until the
( MAINTN-- —
key until the display
).
DONE
( ) and will re-
SHIFT
indicator
MENU key until the
( MAINTN-- —
key until the display
( VERSION ) and then
SYS x.yy
( —the
FRNT x.yy
( —