11 - Maintenance, etc.
69
TASC AM D A-78H R
4Play the suspect tape. The track meters are
used to show the error rate at di fferent loca-
tion, as listed below:
The number of s egments lit indi-
cates the blocks containing
errors (p er group of 128 blocks) ,
as shown here.
It is inevitable that there will be
a few errors, but if the meter
segments are consistently lit
while the tape is playing, some-
thing is wrong (and you will
almost certainly be able to hear
it!).
Use this display to show where
the tape is in error, and which head is causing errors.
In thi s w ay, you ca n pi n point any troub le.
If pla yi ng anot her tape seems to remove th e error s,
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, aft er try ing diff erent tapes and cleani ng the he ads,
you still see many e rrors, you should con tact a
TASCAM service technician to check your DA-78HR.
5Use 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 dr um has b een used overall , a s well a s
in fast forwar d or rewi n d (se arch ) mo de.
1Press the SHIFT key so tha t the SHIFT indicator
is flashing, and press the MENU key until the
display show s MAINTN-- (MAIN TN--—
maintenance).
2Press the S UB MENU key until the display
briefly shows DRU M. TIM (DRUM TIM—drum
time) . The display then changes.
3Use the ▲ and ▼ keys to choose between
d. ;;;; (D xxxx— tot al drum time) and
d. s. ;;;; (D.S.xxxx—d ru m search time).
xxxx represents the time in hours shown beside
the appropriate parameter.
11.2Backup memory initialization
The DA-78HR includ es 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.”):
1Press the SHIFT key s o that the SHIFT indicator
is flashing, and press the MENU key until the
display show s MAINTN-- (MAIN TN--—
maintenance).
2Press the S UB MENU key until the display
shows INIT. (INIT) .
3Press either ▲ or ▼ to change the display to
show READY ( READY).
4Press either ▲ or ▼ once again to initialize all
the stored parameters to the factory settings.
The unit will show done (DONE) and will re-
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 nu mber of t he DA-78H R’s intern al soft ware
components to a TASCAM representative.
There are three major components of the DA-78H R’s
internal software: system, front panel and servo.
Each of these can be checked independently.
1Press the SHIFT key s o that the SHIFT indicator
is flashing, and press the MENU key until the
display show s maintn-- (MAIN TN-- —
maintenance).
2Press the S UB MENU key until the display
briefly shows VER sion (VERSION) and then
changes to either SYS ;. ;; (SYS x. yy —the
system softwa re), Frnt ;. ;; (FRNT x.yy—
Tape edge (head A)
Tape edge (head B) Tape center (head B)
Tape center (head A)
96-128
88-95
80-87
72-79
64-71
56-63
48-55
40-47
32-39
24-31
16-23
6-15
0-7
(none lit)