13 - Rear panel & connections—Digital I/O
13–3
[62] 2TR RTN 1/2 switch
This switch is used to select which of the 2-track
mastering recorder inputs (
[57]
and
[58]
) is used
when the
2TR
monitor select key
[22]
is active.
When this switch is pressed in, the balanced XLR-
type inputs are active, and when out, the unbalanced
RCA inputs are active.
[63] CR LEVEL
This is used to control the level of the signal selected
using the monitor select keys
[22]
sent through the
pair of
CR
output jacks
[61]
.
[64] DIM key and indicator
This switch is used to “dim” (attenuate) the level of
the
CR
output by 30 dB. When the CR output is
dimmed, the indicator is lit.
[65] STUDIO/PHONES level
This is used to control the level of the signal selected
using the monitor select keys
[22]
sent through the
pair of
CR
output jacks
[61]
and also through the
PHONE
jack.
[66] MONO key
This latching key puts the
CR
output into mono. It
has no effect on the
PHONE
output or the
STUDIO
outputs.
[67] TB LEVEL control
This is used to adjust the level from the talkback
microphone
[70]
before it is routed to its destina-
tions.
[68] STUDIO key
This latching key is used to route the signal from the
talkback microphone
[70]
to the
STUDIO
outputs.
The CR output is dimmed, and the other studio out-
put is cut while the talkback is continuing.
[69] PHONES jack
This stereo 1/4-inch jack is used for connecting a
standard pair of headphones (40
Ω
). The maximum
output power is 50 mW + 50 mW.
The headphones should be wired: tip=left,
ring=right, sleeve=ground.
[70] Talkback microphone (unlabeled)
This microphone is used in conjunction with the
STUDIO
key
[68]
and the
SLATE
and
AUX 1-2
keys
[24]
for talkback to the in-studio talent and for tape
slating purposes.
13.4Digital I/O
WARNING
Only use TASCAM-supplied and TASCAM-
approved cables when making digital audio
and control connections to the TM-D4000.
Though the cables and connectors may
resemble computer cables, they serve differ-
ent purposes, and meet a different set of
specifications. The use of cables other than
TASCAM cables will at best cause the equip-
ment to work erratically, and at worst cause
damage to the equipment.
If the use of cables other than TASCAM
cables causes or results in damage, the war-
ranty is voided.
[71] DIGITAL OUTPUT (XLR-type)
This XLR-type connector outputs the
STEREO OUT
signal in the format selected for stereo digital output.
The word length and format, along with dithering
options, are selected from the
DIGITAL I/O
screen (see 3.1.1, “STEREO OUT settings”).
[72] DIGITAL OUTPUT (RCA)
This RCA coaxial connector outputs the
STEREO
OUT
signal in the format selected for stereo digital
output.
The word length and format, along with dithering
options, are selected from the
DIGITAL I/O
screen (see 3.1.1, “STEREO OUT settings”).
[73] D IN 2 (RCA)
This RCA coaxial connector accepts digital audio
signals in IEC60958 format (SPDIF).
This stereo signal may be routed to any combination
of the following: input channels 7-8, input channels
15-16 and ST-IN 2, using the
I/O SETUP
screen accessed through the
DIGITAL I/O
key (see
3.1, “I/O setup”).
Regardless of the channel assignment, the signal
received here may always be selected for monitoring
using the
D-IN 2
key of the monitor select keys
[22]
.
Using the
DIGITAL I/O
screens, this may
also be used as a clock source.
[74] D IN 1(XLR-type)
This XLR-type connector accepts digital audio sig-
nals in AES3-1992 format (AES/EBU).
