Fostex D2424LVMKII manual Video, Setting the reference clock, About reference clock setting

Model D2424LVmkII Quick Operation Guide

SETUP

OL																							OL	BIT	24
0																							0
3																							3		FS
6																							6
9																							9		kHz
12																							12		CLOCK
18																							18
24																							24		INT
30																							30
42																							42
∞																							∞
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24

Flashing

SETUP

OL																							OL	BIT	24
0																							0
3																							3		FS
6																							6
9																							9		kHz
12																							12		CLOCK
18																							18
24																							24		INT
30																							30
42																							42
∞																							∞
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24

5.Select “D.out adat” by using the Jog dial, and press the [EXECUTE/YES] key.

Now the Digital Out is set to "adat".

6.Select the “Clock Sel?” menu via using the Jog dial, and press the [EXECUTE/YES] key.

The current reference clock is displayed together with "Clock Sel?". The default is “Clock Sel Int”. Press the [EXECUTE/YES] key, and the current selection will start flashing.

SETUP

OL	OL	BIT	24
0	0
3	3		FS
6	6
9	9		kHz
12	12		CLOCK
18	18
24	24		INT
30	30
42	42
∞	∞

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Flashing

SETUP

OL	OL	BIT	24
0	0
3	3		FS
6	6
9	9		kHz
12	12		CLOCK
18	18
24	24		INT
30	30
42	42
∞	∞

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Setting the reference clock

When setting "Digital In" (see the previous page) to an "Async" mode ("adat: Async" or "SPDIF: Async"), you must select whether the recorder is referenced to the internal clock or word clock from an external digital device. When setting "Digital In" to a "Sync" mode ("adat: Sync" or "SPDIF: Sync"), the recorder is referenced to the word clock received through the external digital audio signal.

<About reference clock setting>

You must set the reference clock when setting "Digital In" (see the previous page) to an "Async" mode ("adat: Async" or "SPDIF: Async"). You can select from “Auto”, “Word” and “Video” in addition to the default “Int”.

Note that “Video” is available only when the optional TC/SYNC card (model 8346) is installed.

See the table below about the relation between the Digi- tal In setting and reference clock.

7.Select the desired reference clock by using the Jog dial, and press the [EXECUTE/YES] key.

The reference clock is now set to your desired clock. When connecting the recorder to a digital mixing console that can accept the word clock from the WORD OUT of the recorder, set the recorder's reference clock to “Int”. See the table below in other cases.

8.Press the [EXIT/NO] key or [STOP] button to exit the SETUP mode.

The display shows the beginning of the disk with ABS time base.

After complete “Digital In”, “Digital Out” and “Reference Clock” settings, execute the basic recording in a similar manner to "Basic analog recording" described earlier.

[Clock Sel ?]

[D. in ?] setting

setting

Video

clock received from WORD IN

SPDIF :Async

adat :Async

no clock

received from

WORD IN

Available only when installing t h e o p t i o n a l Model 8346 TC/ SYNC card. If you t r y t o s e l e c t “Video,” “Void w/

o8346” is dis- played and you cannot select it. See the appendix of the Reference manual for de- tails.

clock received from WORD IN

SPDIF :Sync

adat :Sync

no clock

received from

WORD IN

Regardless of receiving or not receiving word clock from WORD IN, the recorder is ref- erenced to the internal clock. When the recorder receives correct digital signals, the “DIGITAL” indicator lights in the display.

When receiving word clock	When receiving word clock
from WORD IN, the recorder	from WORD IN, the recorder
automatically synchronizes to	synchronizes to the incoming
the incoming clock, while the	clock, while the “DIGITAL”,
“ DIGITAL ”, “ EXT ”, and	“EXT”, and “WORD” indicators
“WORD” indicators light in the	light in the display.
display.
When no word clock is re-	When no word clock is re-
ceived, the recorder is refer-	ceived, the “EXT” indicator
enced to the internal clock,	flashes showing that the re-
while the “EXT” indicator	corder cannot be locked.
flashes.

Regardless of receiving or not receiving word clock from WORD IN, the recorder syn- chronizes to the external S/P DIF digital signal. When the recorder receives correct digi- tal signals, the “DIGITAL” and “EXT” indicators light in the display. When Digital In is set to a SYNC mode, if you try to select “Clock Sel?” menu, The display will show “Clock Sel D.in!” (indicating that the clock is set to Digital In!) and the recorder ignores your opera- tion.

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