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Yamaha SPX990 Service Manual

Yamaha SPX990
53 pages
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^CONTENTS
(g'^)
SPECIFICATI0NS(J^B-f±^5^)
2/3
PANEL
LAY0UT(/';4'
;uu<
7'0
h
)
4
CIRCUIT BOARD LAYOUK
zl
-
y h
U
Y
r ^
I-
)
6
BLOCK
DiAGRAiVl(7'D
8
DIIViENSIONS(-t>=fell])
9
DISASSEMBLY
PROCEDURE(:j^m^)iS)
10
LSI
PIN
DESCRIPTIONCLSIJSiT^ia^HMa)
14
1C
BLOCK
DIAGRAMCICVP
19
CIRCUIT
BOARDS('>-
^
»[U)
20
TEST
PROGRAM
(
7^^
i-
-7^
v
A)
26/30
CHECKS &
ADJUSTMENTS(^^^tllH^li)
34/35
RAM
INITIALIZE(RAMYA'>i^^YX)
36
ERROR
MESSAGES(x
5-7
y-tz--7) 36
MIDI DATA
F0RMAT<MID!^--
7
7=1--
V y
h
)
37/42
MIDI
IMPLEMENTATION
CHART
47
PRESET PROGRAM LIST
48
OPERATION MAP
50
PARTS LIST
SPX990

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Yamaha SPX990 Specifications

General IconGeneral
Sampling Frequency44.1 kHz
Dynamic Range90dB
TypeDigital Multi-Effect Processor
Total Harmonic Distortion0.03%
Input ConnectorsXLR, 1/4" TRS
Output ConnectorsXLR, 1/4" TRS
MIDIIn, Out, Thru
Power SupplyAC 120V, 60Hz
EffectsReverb, Delay, Modulation, Pitch Change
Dimensions480 x 44 x 280 mm
Weight3.5 kg
Frequency Response20Hz - 20kHz (+1dB, -3dB)

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