Clavia DMI
Service manual Nord Modular G2 rev. 1.2
Page 8
Hardware
Hardware structure
The hardware structure is common for the Nord Modular G2/G2X:
One power supply unit, one main board and one panel board.
The G2X also has the voice expansion board installed as standard.
The Nord Modular G2 Engine has all the functions of the G2/G2X, but is not equipped
with a panel board. The power supply unit also has a different component layout.
Power supply
The Nord Modular G2 is supplied with several different voltages from the power supply.
These are +3.3V, +5V and ±12V. For more information on where to measure these
voltages, see the schematic for the power supply. There are also two voltages supplied
from the main board.
U25
(22340)
supplies the Host and DSP´s with +1.8V,
U38
(21540)
supplies the audio D/A with +5V. The Power supply is connected to the main board with
a 10 pole connector
P2
(
22480).
Main Board
The main board is equipped with four DSP´s
U16-U19
(23280)
,
which is controlled by a
host processor
U14
(23180)
with two DRAM circuits
U12
and
U13
(23170)
(1M*16 bits).
Boot code for the host processor is stored in the BootPROM
U21
(23890)
(512k*8 bits).
OS, user patches and performances are stored in another Flash memory
U7/U37
(24000)
(16M*16 bits). Various other information, for example user settings is stored in an
EEPROM
U36
(24147)
(2k*8 bits).
Audio D/A conversion is performed by
U32
and
U33
(23430)
.
A/D conversion of the control pedal takes place on the panel board
U12
(23370)
.
All input and output jacks are filtered from radio signals with an EMI-filter
(23110)
(component designator prefix F). External connectors are a 26 pole connector for the
panel board
P7
(22520)
,
a 10 pole connector for the power supply unit
P9
(22480)
,
two
keyboard connectors
P1
(22680)
and
P2
(22670)
,
one four pole connector for the after
touch strip
P10
(23790),
two three pole connectors for Mic
P12
(23480),
Mic Level
P11
(23480)
and two connectors for the expansion board
P3
(23500)
P4
(23490).
Panel Board
On the panel board you will find all control functions of the Nord Modular G2. The main
characteristics are main program encoder
(22890)
, pitch stick
(NMG2 10190, NMG2X 10295)
,
the five LCD´s
(23300)
and the eight encoders
(24010)
. The panel board is connected to
the main board with a 26 pole connector
(22520).
Summary of Contents for Nord Modular G2
Page 1: ...SERVICE MANUAL ...
