GEM GENESYS SOLTON SG-1 Service Manual

SERVICE MANUAL
®
genesys
code 270281
Index
2 Introduction, System Setup, Hardware Test & Adjustments.
3 Some Tips to repair a Genesys keyboard, Timings Table.
4 Block Diagram.
5 Power Amplifier & Supply, Analog I/O, Phones/Stand-by Board Schematics.
6 Keyboard Interface, L/R Contact, Digital I/O Board Schematics.
7 Left Controls Panel, Centre Controls Panel, Right Controls Panel, Left & Right LCD Controls,
Faders, MIC & Genious Controls and DC/AC Converter Board Schematics.
8 Panel Controller Board Schematic & PCB Layout, Keyboard Interface PCB Layouts.
9 Left & Centre Controls Panel Board & Faders Board PCB Layout.
10 Left & Right LCD Control, Analog I/O, Digital I/O Board, MIC & Genious Controls, Phones & Stand-by PCBs.
11 Power Amplifier & Supply Board, Right Controls Panel Board PCB Layouts.
12 CPU Board (part 1/2) Schematic.
13 CPU Board (part 2/2) Schematic.
14 CPU Board and 128Mbit SDRAM Module PCB Layouts.
15 A/V & Vocal Processor Board Schematic (1st Version).
16 A/V & Vocal Processor Board Schematic (2nd Version).
17 A/V & Vocal Processor Board Schematic (3rd Version).
18
19
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.
✔
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.
✔
The (µ) micro symbol of capacitance value is substituted by U.
✔
Ω
The ( ) omega symbol of resistance value is substituted by E.
✔
The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified.
✔
All resistors are 1/8W unless otherwise specified.
✔
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
¤
Phone +39(0)541/959511 - Fax +39(0)541/957404 - Internet: www.generalmusic.com
Logic supply ground.
Analog supply ground.
Chassis ground.
Earth ground.
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