GEM equinox Service Manual

SERVICE MANUAL
Index
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Warnings
Address
L CODE: 270217 M
✔
✔
Opening and Keyboard Disassembling Instructions & NOTICE
Layout
Assembly & Wiring Connections 1st version
Assembly & Wiring Connections 2nd version
1st and 2nd version Block Diagrams
Timing Table
Power Supply, Phones, Midi & Controls I/O, Analog I/O Board Schematics 1st Version
Power Supply, Phones, Midi & Controls I/O Pcb Layouts
Mixer Board Schematic and Pcb Layout 2nd Version
61 and 76 Notes L/R Contact Boards, Keyboard Interface Board Schematics
Controls Interface & Controls Panel Board Schematics
Controls Panel Pcb Reverse Layout, Controls Interface and Keyboard Interface Pcb Layout
Cpu & Sound Generator Schematic (Part 1/2)
Cpu & Sound Generator Schematic (Part 2/2)
Cpu & Sound Generator Pcb Layout
Cpu & Sound Generator Map
Vocal Processor Board Schematic & Pcb Layout (Optional Accessory)
Test & Adjustment Procedure, Spare Part List
Notice
✔
Service must be carried out by qualified personnel only.Any tampering carried out by unqualified personnel during the guarantee period
will forfeit the right to guarantee.
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For a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.
✔
To improve the device's specifications, the schematic diagrams may be subject to change without prior notice.
All components marked by this symbol have special safety characteristics, when replacing any of these components use only
manufacturer's specified parts.
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The (µ) micro symbol of capacitance value is substituted by U.
✔
The (Ω) omega symbol of resistance value is substituted by E.
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The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified.
✔
All resistors are 1/8Ω unless otherwise specified.
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All switches shown in the "OFF" position. All DC voltages measured to ground with a voltmeter 20KOhm/V.
✔ Soldering point. Supply voltage.
✔
Male connector. Test point.
✔ Female connector. Flag joined with one or more flags
✔
M/F faston connector. with the same signal name inscribed.
ATTENTION
Observe precautions when handling electrostatic sensitive devices.
GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/959511 - fax 0541/957404
GENERALMUSIC on the NET: http://www.generalmusic.com
Logic supply ground.
Analog supply ground.
Chassis ground.
Earth ground.
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