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GM-1000 Schematic ( PDF Datasheet ) - Oberheim

Teilenummer GM-1000
Beschreibung 24Bit Digital Signal Processor
Hersteller Oberheim
Logo Oberheim Logo 




Gesamt 30 Seiten
GM-1000 Datasheet, Funktion
www.DataSheet4U.com
GM-1000
24 BIT DIGITAL SIGNAL PROCESSOR
OPERATING MANUAL






GM-1000 Datasheet, Funktion
www.DataSheet4U.com
OBERHEIM GM 1000
Digital Signal Processor
2. DESCRIPTION OF CONTROLS AND CONNECTORS
12 3
2.1 FRONT PANEL
45
678 9
10
11 12 13 14
1. Phones Output: this socket is a headphones output which allows the GM 1000 to
be used even without connection to an amplification system.
2. Phones Level: used to regulate the volume of the signal sent to the PHONES
OUTPUT.
3. Input Level: LED indicator for the input signal level.
4. Display: backlit display used to display various information, such as the number
and name of the memory to be used, the programming parameters, the sound
spectrum analysis data, etc.
5. Value: data input device which can be used to vary the values selected using the
cursor keys. Turn clockwise to increase the selected value or anti-clockwise to
decrease.
6. Guitar Input: dedicated input connector for a guitar.
7. Input Level: regulates the amount of signal supplied as input to the GM 1000. The
setting applies to both the front and rear connectors.
8. Midi message: light indicating that the rear Midi In connectors are receiving midi
messages.
9. Lcd Contrast: regulates the contrast of the liquid crystal display (LCD).
10. Function keys: keys which allow the user to carry out the main functions necessary
for use and programming of the GM 1000.
11. Cursor: the four illuminated green keys allow the user to move the cursor around
the display in order to select a parameter for modification.
12. Group keys: keys used for selecting the groups which make up the sound
processing chain.
13. Tools keys: these keys allow access to the Bypass, tuner and spectrum analyzer
functions implemented in the GM 1000.
14. Power key: key used for switching the instrument on and off.
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GM-1000 pdf, datenblatt
www.DataSheet4U.com
OBERHEIM GM 1000
Digital Signal Processor
4. PLAY MODE
The section which follows will describe the PLAY MODE: we will discuss the way in which
the GM 1000 will be used while the patches are being played. The next section, entitled
EDIT MODE, will describe the procedure for programming a patch. This section will refer
almost only to the main display page.
4.1 KEYS AND CONTROLS
Cursor.
Four green illuminated keys to the right of the display and below the Value Encoder are
called CURSOR keys. They allow the user to move the cursor, used to select a parameter
to be modified, around the display. The top key moves the cursor upwards, the key on the
right moves the cursor to the right, and so on.
Value.
Once the parameter to be modified has been selected, the Value Encoder allows the user
to vary its value. Turn the knob clockwise to increase the selected value or anti-clockwise
to decrease. The encoder works dynamically; in other words, the speed at which it is
turned establishes the speed at which the selected value is varied.
General bypass.
To listen to the signal exactly as it reaches the INPUT socket, the user can completely
bypass the algorithms which process the signal by pressing the BYPASS key. To confirm
this operation, the light in the BYPASS key will illuminate. Press the BYPASS key again to
return to the initial conditions. This type of bypass is referred to as a GENERAL BYPASS
to distinguish it from the LOCAL BYPASS to be described in the EDIT MODE section.
Phones output.
This socket allows the user to listen to the results of the GM 1000 signal processing on
headphones. Once the jack has been connected to the PHONES OUTPUT socket on the
left of the panel, optimize the playback volume as preferred using the PHONES LEVEL
trimmer immediately above the PHONES OUTPUT socket.
CAUTION !! : Excessively high playing volumes may seriously damage your hearing:
keep the volume within reasonable limits.
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