General Music RPStudio Service Manual
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CODE : 270127
Index & Warnings
Soldering point.
Male connector.
Female connector.
M/F faston connector.
Test point.
Supply voltage.
Logic supply ground.
Analog supply ground.
Signal ground.
Chassis ground.
Flag joined with one or more flags with the same signal name inscribed.
GENERALMUSIC S.p.A. Sales Division: 47048 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/959511 - tlx 550555 GMUSIC I - fax 0541/957404
Opening & Disassembling Instructions
2
Assembly & Wiring Connections
3
Autotest Chart, Block Diagram
4
Controls Panel, Power Amplifier & Supply, Aux & Midi I/O, Phones Boards
5
Keyboard Contact Boards & Keyboard Interface Board
6
Cpu & Sound Generator Board
7
Spare Part List
8
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.
Schematic Notes
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. The (Ω) 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.
ATTENTION
Observe precautions when handling
electrostatic sensitive devices
SERVICE MANUAL
Schematic Diagrams
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1) TO REMOVE THE COVER UNSCREW THE FOUR SCREWS ON THE REAR, PULL THE COVER TOWARD YOU AND LIFT IT UP. 2) TO REMOVE THE CONTROL PANEL UNSCREW THE TWO SCREWS AT EACH END AND THE TWO SCREWS THAT ANCHOR THE CONTROL PANEL SUPPORTS TO THE CHASSIS.
3) TO REMOVE THE KEYBOARD UNSCREW THE 11 (TP20) OR 16 (TP8) SCREWS UNDER THE KEYBOARD.
4) TO REMOVE A KEY INSERT A SCREWDRIVER OR OTHER SIMILILAR OBJECT IN THE SPLIT AT THE KEY BACK, APPLY A LIGHT PRESSURE AND PUSH IN THE DIRECTION SHOWN.
NOTE: BEFORE YOU REMOVE A NATURAL KEY YOU MUST REMOVE THE KEYBOARD, IF YOU REMOVE A SHARP KEY THIS OPERATION IS NOT NECESSARY.
TP20
4) TO REMOVE A KEY, FIRST REMOVE THE RETURN SPRING, THEN INSERT A SCREWDRIVER IN THE SPLIT AT THE KEY BACK AND APPLY A LIGHT PRESSURE IN THE DIRECTION SHOWN.
NOTE: BEFORE YOU REMOVE A KEY YOU MUST REMOVE THE KEYBOARD; IF YOU REMOVE A SHARP KEY, YOU MUST REMOVE AN ADJACENT NATURAL KEY FIRST.
TP8
DRW
APP.
CKD
WRITTEN CONSENT BY GENERALMUSIC.
OR REPRODUCE THIS DOCUMENT WITHOUT
ALL RIGHTS ARE RESERVED, NO COPIES
GENERALMUSIC S.p.A. ITALY
PART:
DWG#
DISK:
REV:
PCB#
R. Falconi
D. Jakowsky
G. Boccato
500732
09-07-96
39
Disassembling Instructions
1/1
33
33
3
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DRW
APP.
CKD
WRITTEN CONSENT BY GENERALMUSIC.
OR REPRODUCE THIS DOCUMENT WITHOUT
ALL RIGHTS ARE RESERVED, NO COPIES
GENERALMUSIC S.p.A. ITALY
PART:
DWG#
DISK:
REV:
PCB#
M. GALANTI
R. GIORGI
G. BOCCATO
500737
24/07/96
39
Assembly & Wiring Connections
1/1
AUX & MIDI I/O BOARD
PHONES BOARD
LEFT SIDE
KEYBOARD INTERFACE BOARD88 NOTES KEYBOARD
VOLUME
MIN
DEMO MASTER SET
MAX
L WOOFER
COVER
FRONTAL COVER GRID
CPU & SOUND GENERATOR BOARDL TWEETER
CONTROLS PANEL BOARD CONTROLS PANEL
ORGAN
JAZZ
RHODEX
TRANSPOSE
- +
GRAND
CONCERT
BRILLIANCE
-+
FM
PIANO
HARPSI STRINGS
ORGAN
POP
SOUNDS
PHASER
TREMOLO
CHORUS
PIPE
ORGAN
REVERB
DSP
EFFECTS
ROOM
HALL
STAGE
TOUCH
NORMAL
SOFT
HARD
POWER SWITCH
RIGHT SIDE
POWER AMPLIFIER & SUPPLY BOARD TRANSFORMER R TWEETER
MAINS CORD
MAINS FILTER BOARDR WOOFER
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