Roland M 1000 Service Manual
D.IN1: Digital Input 1
W.CLK:Word Clock
INT: Internal
Functions and Operations of Each Section -- Front Panel --
1 2 3 138 9 10 11 124 5 6 7
ANALOG INPUT
1.
Input SENSitivity Select Switch
This switches the sensitivity of the analog input. It acts on
the audio signal before the signal is converted to digital.
Set according to the output from the connected device.
Also known as “Input Gain.”
2.
PEAK Indicator
This lights up when the input sound is distorted. The
light is triggered according to the volume prior to adjustment with the LEVEL knob. If this indicator lights, set the
SENS switch to [+4 dB].
3.
LEVEL Knob
This adjusts the volume of the analog input. It acts on the
audio signal after conversion to digital. The knob works
like a channel fader on a digital recorder or similar device.
DIGITAL INPUT
4.
Digital Input Connector SELECT
Switch
This switch specifies whether input is through the coaxial
connector (on the rear panel) or optical connector (on the
front panel).
5.
Digital Input Connector (OPTICAL)
This is a square-shaped optical digital connector. It
accepts one digital input. The connector conforms to “IEC
60958,” “IEC 958” (consumer audio), and “EIAJ-CP-1201”
(consumer audio) standards.
6.
LOCK Indicators
These light when a digital connection with the input
device is established. If the connection is broken, the indicator flashes briefly, then goes off.
LEVEL Knobs
7.
These adjust the volume for the digital inputs 1--4.
When connected via USB, the knob for digital input 4
adjusts the volume of the input from the connected computer.
MASTER OUT
This outputs the mixed signal from all the inputs.
8.
BALANCE Knob
This outer knob adjusts the left-right volume balance.
Applied in common to analog, digital, and USB outputs.
9.
LEVEL Knob
The inner knob adjusts the volume after mixing. Applied
in common to analog, digital, and USB outputs.
10.
Digital Output Connector (OPTICAL)
This is a square-shaped optical digital connector. It outputs the mixed sound as optical digital signals. The connector conforms to “IEC 60958,” “IEC 958” (consumer
audio), and “EIAJ-CP-1201” (consumer audio) standards.
MONITOR OUT
Headphone Connector
11.
Connect headphones here to listen to the monitor output.
12.
LEVEL Knob
This adjusts the volume to the headphone connector and
MONITOR OUT. It has no influence on the MASTER
OUT volume.
13.
LEVEL Meters
These indicate the MASTER OUT volume level.
If [CLIP] lights up, it means that the sound is distorting.
Lower the volume at the inputs.
14.
Sampling Frequency Select Switch
This switches the sampling rate when the locked source is
internal or received through a USB connection.
15.
Sampling Frequency Indicator
This indicates the current sampling rate.
16.
POWER Switch
This turns the M-1000's power on and off.
When Not Connected
Through USB
17.
Clock Source Select
Button
This switches the clock source. Press
the button until the light for the desired source is lit.
* When you select the Clock Source, you may hear short clicks.
This is not a malfunction.
* This button's function changes when a USB connection is
used. (Refer to “When Connected Through USB”.)
18.
Clock Source Indicator
This indicates the clock source.
When flashing, it means that the switch has not been completed, and the M-1000 is operating according to the internal clock (INT).
* The meaning of the indicator changes when a USB connection
is used. (Refer to “When Connected Through USB”.)
Digital Input 1 Indicator
This lights when operation is synchronized to the signals
from DIGITAL INPUT 1.
Word Clock Indicator
This lights when operation is synchronized to the signals
from Word Clock Connector.
Internal Indicator
Signals are synchronized to the M-1000's internal clock.
Matching the Sampling Rate
When exchanging audio between a computer and the M1000 via a USB connection, set the applications and the M1000 to the same sampling frequency (sampling rate).
Although there are applications capable of outputting
sounds while operating with differing sampling frequencies, this may reduce the sound quality.
* Refer to “Sampling Frequency Select Switch”.
* Refer to “Procedure for Changing the Settings”.
17
18
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When Connected
Through USB
* When this is connected to PC through
USB, the operation is synchronized to the
signal through the USB. Other clock
source can not be selected.
17
.USB Driver Select Button
This switches the USB driver type and settings.
.USB Indicator
18
This indicates the USB driver type and settings.
USB Indicator
Lit: USB connection is established. If the USB connection
is broken, the indicator flashes briefly, then goes off.
ADVANCED Indicator
This shows which USB audio driver is being used.
Lit: Advanced Mode
The driver for optimizing the M-1000 is used.
Off: Standard Driver Mode
The standard computer drivers are used.
* Refer to “Advanced Mode and Standard Driver Mode” (p.
12) in the Owner's Manual.
96kHz: from PC Indicator
Lit: The advanced driver is used with a sampling rate of 96
kHz, and USB is used exclusively for input. With this
setup, you cannot output to the computer via USB.
96kHz: to PC Indicator
Lit: The advanced driver is used with a sampling rate of
96 kHz, and USB is dedicated to sending the output.
In this setup, you cannot receive any input from the
computer via USB.
Procedure for Changing the Settings
When a computer is connected to the M-1000 via USB,
you will need to turn the M-1000's power off, then on
again after changing the driver and sampling frequency
settings.
1. Press the USB driver select button/sampling frequency
select buttons a number of times until the desired indicators flash (reserved status).
2. Quit all applications that make use of USB audio.
3Turn the M-1000 off, then on again.
4. Start up your application(s).
75 Ω
Functions and Operations of Each Section -- Rear Panel --
AC IN
1.
Connect the power cable included with the M-1000 here.
WORD CLOCK
* Refer to “Setting the Word Clock”.
WORD CLOCK Output Connector
2.
The word clock signal is output here. This is a BNC connector.
WORD CLOCK Input Connector
3.
The word clock signal is input here. This is a BNC connector.
4.
5.
6.
7.
ON/OFF Switch
This switches termination on and off. Switch this to ON if
the M-1000 is at the end of a number of devices linked
with word clock. If nothing is connected to the WORD
CLOCK IN connector, then this is disregarded. Switch
this to OFF if passing the signals through.
THRU ON/OFF Switch
ON: Word clock signals received at the WORD
CLOCK IN connector are sent to the WORD
CLOCK OUT connector unchanged.
OFF: The word clock currently used in controlling the
M-1000 is transmitted.
USB Connector
Connect a computer to the M-1000 with a USB cable here.
Audio is input and output as digital signals.
MONITOR OUT Connectors
The mixed audio is output here as analog signals. You
can control the volume of this output independently of
the MASTER output. These standard-type connectors are
not for use with balanced input and output.
2 3 4 51
MASTER OUT
MASTER OUT Connector (Digital)
8.
The mixed audio is output here as digital signals. The
connector conforms to “IEC 60958,” “IEC 958” (consumer
audio), and “EIAJ-CP-1201” (consumer audio) standards.
This is an RCA-type connector.
9.
MASTER OUT Connectors (Analog)
The mixed audio is output here as analog signals. These
are XLR-type connectors.
10.
DIGITAL INPUT Connectors
(Coaxial)
Audio is input as digital signals to DIGITAL INPUT 1--4.
These conform to “IEC 60958,” “IEC 958” (consumer
audio), and “EIAJ-CP-1201” (consumer audio) standards.
They are RCA-type connectors.
If you are using the digital input device as the clock
source, connect it to the DIGITAL INPUT 1 connector.
DIGITAL INPUT 1 accepts any sampling frequency from
32 kHz to 96 kHz, allowing it to handle Vari-Pitch input
from digital recorders and other input.
DIGITAL INPUT connectors 2--4 accept input at five different sampling frequencies: 32 kHz, 44.1 kHz, 48 kHz,
88.2 kHz, and 96 kHz.
You cannot input through the DIGITAL INPUT 4 connector when using a USB connection.
11.
ANALOG INPUT Connectors
Audio is input here as analog signals. These are 1/4”
phone connectors. Balanced transmission is not supported.
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Operation
Adjusting the Analog Inputs
If [-10 dB] or [+4 dB] is indicated at the output connector
of the connected device, set the M-1000's input sensitivity
select switch (SENS) to match this. In general, consumer
audio devices will show [-10 dB], and professional audio
gear will have [+4 dB]. If the output specifications are not
clear, try the following.
1. Input the audio to ANALOG IN.
2. Try setting the SENS switch to the [-10 dB] position.
3. If the PEAK indicator does not light up, leave the
switch as is and adjust with the LEVEL knob.
4. If the PEAK indicator does light up, switch the SENS
setting to [+4 dB], then adjust the level with the LEVEL
knob.
Changing the DIGITAL INPUT 1
Connector Setting
When connecting to DIGITAL INPUT 1 (COAXIAL or
OPTICAL), slide the input connector SELECT switch to
the position corresponding to the connector you are
using.
Setting the Word Clock
Refer to the chart and select the settings and connection
according to how it is to be used.
Use
Synchronizing
with the INT/D. IN 1/USB clock
and transmitting it externally
(Word Clock Master)
Sending out the clock
just as it is received
(THRU)
When the M-1000 itself is the terminus
of a word clock connection
(Termination)
75 Ω THRU IN OUT
- OFF - Connected
OFF ON Connected Connected
ON OFF Connected -
03129078 ’02-10-GE1-11KS
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