CPS-130
CPS-130 is similar to CPS-100. Refer to the CPS-100 service manual
for the circuit description that are not covered in this manual.
(with price)
CPS-130
ELECTRIONIC KEYBOARD
INDEX
-- 2 --
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Key and switch Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PCB View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Major Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Parts List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical
Current drain with 9 V DC:
No Sound Output
80 mA
± 20%
Maximum volume
350 mA
± 20%
with any 10 keys pressed in Piano tone
Volume: Maximum, Sustain: ON
Phone output level (Vrms with 8
load each channel)
87 mV
± 20 %
with key C5 pressed in Piano tone, Volume: Maximum
Line output level (Vrms with 47 k
load each channel)
470 mV
± 20 %
with key C5 pressed in Piano tone, Volume: Maximum
Minimum operating voltage:
6.5 V
General
Number of keys:
61
Polyphonic:
10-note
Preset tones:
5, including: Piano, Harpsichord, Vibraphone, Jazz organ, Pipe organ
Demonstration tune:
Ballade Pour Adeline
Tuning control:
442 Hz
±30 cents
Built-in speakers:
12.0 cm dia. 1.1 W Input Rating: 2 pcs.
Terminals:
Output jack [Output impedance:30
, Output voltage: 1.2 V (rms) MAX]
Sustain jack, AC adapter Jack (DV 9 V)
Power source:
DC: 6 D size dry batteries
Battery life: Approx. 10 hours (SUM-1/R20P)
AC: AC Adapter AD-5
Power consumption:
4.2 W
Dimensions (HWD):
116 x 970 x 364 mm
(4-5/8 x 38-1/4 x 14-3/8 inches)
Weight:
8.4 kg (18.5 lbs) including batteries
SPECIFICATIONS
CONTENTS
--
3
--
BLOCK DIAGRAM
OE
CE(AR18)
AR0 ~ AR17
IO0 ~ IO15
Main Clock
21.7251 MHz
Keys and Switches
KO4 ~ KO19
KI1 ~ KI8
CPU
CDT109-005
ROM
HN62414PD25
ROUT
LOUT
KO22
(APO)
VCC
AVDD
VDD
Power Amp.
LA4127
Output
Power IC
LA5668N
Filter (R)
M5218APR
Filter (L)
M5128APR
Speakers
Main Volume
Control
PG1
Reset IC
S8053ALR
DATA
BCK
WCK1
LRCK
DAC
LC7881C
DVDD
PG2
MIDI Clock
2 MHz
Reset
-- 4 --
F#3 G#3 A#3
C#4 D#4
F#4 G#4 A#4
C#5 D#5
F#5 G#5 A#5
F3
G3
A3
B3
C4
D4
E4
F4
G4
A4
B4
C5
D5
E5
F5
G5
A5
B5
C6
D#3
C2
D2
E2
F2
G2
A2
B2
C3
D3
E3
B1
A1
G1
F1
E1
D1
C1
C#3
A#2
G#2
F#2
D#2
C#2
A#1
G#1
F#1
D#1
C#1
Nomenclature of Keys
KEY AND SWITCH MATRIX
KI1
KI2
KI3
KI4
KI5
KI6
KI7
KI8
KO4
C1
C#1
D1
D#1
E1
F1
KO5
F#1
G1
G#1
A1
A#1
B1
KO6
C2
C#2
D2
D#2
E2
F2
KO7
F#2
G2
G#2
A2
A#2
B2
KO8
C3
C#3
D3
D#3
E3
F3
KO9
F#3
G3
G#3
A3
A#3
B3
KO10
C4
C#4
D4
D#4
E4
F4
KO11
F#4
G4
G#4
A4
A#4
B4
KO12
C5
C#5
D5
D#5
E5
F5
KO13
F#5
G5
G#5
A5
A#5
B5
KO14
C6
KO16
Piano
Jazzorgan
Pipeorgan
KO18
Power OFF Power ON
KO19
(Sustain)
Harpsi-
chord
Vibra-
phone
Demon-
stration
-- 5 --
PCB M5312-MA1M
SCHEMATIC DIAGRAMS
12 14
9
11
8
10
15
13
,
,
1
6
7
4
5
3
2
Power IC
PG2
Power
Amp.
PG1
C P U
ROM
Reset IC
DAC
Filter