Tascam MZ-223 - Industrial-Grade Zone Mixer - Manual (Page 14)

14
TASCAM MZ-223
Troubleshooting
If you are having trouble with the operation of this
unit, please try the following before seeking repair.
If these measures do not solve the problem, please
contact the store where you purchased this unit or
TASCAM customer support service.
The unit will not turn on.
0
Confirm that the AC adapter (TASCAM PS-M1524)
is securely connected to both the outlet and the
DC jack.
Sound is not output from speakers connect-
ed via the MAIN OUTPUTS 1–3 jacks.
0
Check the settings and volume of the connected
amplifier.
0
Confirm that channel faders (
8
) are raised.
0
Confirm that the input sound source is connected
properly.
The volume is low even when faders are
raised.
0
Confirm that the GAIN (
j
) knobs for channels 1–5
are set properly.
The sound is distorted.
0
Confirm that the channel 1–5 GAIN knobs (
j
) are
set properly.
0
Confirm that the EQ is not set too high.
0
Confirm that the channel 1–5 faders (
8
) and OUT-
PUT VOL knobs (
q
) are not set too high.
Sound from a record player is strange.
0
Confirm that it is connected to channel 1–2 LINE
A jacks and that the LINE/PHONO input switch (
l
)
is set to PHONO .
0
Confirm that the grounding wire from the record
player is connected to the | (GND) connector
(
k
).
A connected device is making a humming
noise.
0
Connect a grounding wire from the metal frame of
the connected device to the | (GND) connector
(
k
) on this unit.
No sound is output from headphones.
0
Use the MONITOR SELECT (
r
) switches to select
the outputs.
No sound is output from the monitoring sys-
tem connected to the MONITOR OUT jacks.
0
Check the settings of the connected monitoring
system.
0
Confirm that the channel 1–5 GAIN knobs (
j
) and
channel faders (
8
) are raised.
Specifications
Audio inputs
MIC 1–2 INPUT (BALANCED) jacks
Connectors:
XLR-3-31 (1: GND, 2: HOT, 3: COLD)
6.3mm (1/4”) standard TRS jacks (Tip: HOT,
Ring: COLD, Sleeve: GND)
Input impedance: 33 kΩ
Nominal input level: -65 dBu
( VOLUME knob at MAX )
Nominal input level: -30 dBu
( VOLUME knob at MIN )
INPUTS: LINE (UNBALANCED) jacks
Connectors: RCA pin jacks
Nominal input level: -10 dBV
Maximum input level: 10 dBV
Input impedance: 22 kΩ
0
0 dBu=0.775 Vrms, 0 dBV=1 V
Audio outputs
MAIN OUTPUTS (UNBALANCED) jacks
Connectors: RCA pin jacks
Rated output level: -10 dBV
Maximum output level: 6 dBV
Output impedance: 200 Ω
MAIN OUTPUTS (BALANCED) jacks
Connectors: XLR-3-32 (1: GND, 2: HOT, 3: COLD)
Rated output level: 4 dBu
Maximum output level: 24 dBu
Output impedance: 200 Ω
MONITOR OUT jacks
Connectors: RCA pin jacks
Rated output level: -16 dBV
Maximum output level: 0 dBV
Output impedance: 200 Ω
PHONES jack
Connectors: 6.3mm (1/4”) standard stereo jack
Maximum output: 50 mW + 50 mW
(into 32 Ω load)
0
0 dBu=0.775 Vrms, 0 dBV=1 V