Further storage of waveform, accompaniment, and SMF data becomes impossible
after the total of such data reaches approximately 3.5MB.
SD Memory Cards
Supported SD Memory Cards
: 1GB or less (Cards with capacity greater than 1 GB are not supported.)
Functions:Save and load of user tones, user songs, and registration data; playback of SMF; card
formatting; file delete; file rename
Terminals
SD memory card slot
USB port:TYPE B
Sustain/Assignable Terminal
Headphone/Output Terminal
: Standard jack (sustain, sostenuto, soft, rhythm start/stop)
: Stereo standard jack
Output Impedance: 200Ω
Output Voltage: 5.5V (RMS) MAX
Power Supply Terminal:12V DC
Power Supply:Dual power supply system
Batteries:6 D-size batteries
Battery Life:Approximately 4 hours continuous operation on alkaline batteries
AC Adaptor:AD-12
Auto Power Off:Turns power off approximately six minutes after last key operation. Enabled under
battery power only, can be disabled manually.
Speaker Output:6.1W + 6.1W
Power consumption:12V 18W
Dimensions:122.3 ✕ 42.3 ✕ 16.0cm (48
3
/
16
✕ 16
11
/
✕ 6
16
5
/16 inch)
Weight:Approximately 10.0kg (22.0 lbs) (without batteries)
*1 The same memory area is used to store waveform data, accompaniment data, and SMF data.
*2 Noted capacities are calculated values based on 1MB = 10242 bytes.
ELECTRICAL
Current drain with 12 V DC:
Consumption Current1720 mA ± 20 %
Consumption Current at idle290 mA ± 20 %
with 12 keys from F3 to E4 pressed in 479 Ocarinag + LAYER
Volume: maximum, Velocity: maximum
Speaker output level (Vrms with 8 Ω load each channel):
with key L(E1)/R(G1) in 479 Ocarinag
Volume: maximun, Velocity: maximumL: 5700 mV ± 20 %
R: 5670 mV ± 20 %
Phone output level (Vrms with 32 Ω load each channel):
with key L(C2)/R(B5) in 479 Ocarinag
Volume: maximun, Velocity: maximumL: 360 mV ± 20 %
R: 330 mV ± 20 %
Output level (Vrms with 47 KΩ load each channel):
with key L(E1)/R(G1) in 479 Ocarinag
Volume: maximun, Velocity: maximumL: 3100 mV ± 20 %
R: 3030 mV ± 20 %
— 2 —
Page 5
BLOCK DIAGRAM
Phones/Output
CONSOLE PCB
(M740-CNA3)
Speakers
(R)
(L)
Main
Volume
CONSOLE PCB
(M740-CNA2)
MAIN PCB
(M740-MDA1)
Reset IC
IC6
R1151N001C-TR
LOUT
RESET
SUB PCB (M740-PSA2)
Assingnable Jack
Power Amplifier
IC205
LA4636
Filter
IC202, NJM2008D
ROUT
DAC IC1
uPD63200GS
APO
MPU
IC13
AC ADAPTOR
DC 12V
Battery
Power Supply Circuit
Q201 ~ Q204,
IC201, D205, D206
(9-12V)
VC
(5V)
VD5
D214
(5V)
VF5
LCD PCB
(M734-LCD1M)
D201
(9-12V)
(5V)
VCP
VA5
SUB PCB
(M740-PSA1)
MA0 ~ MA20
MD0 ~ MD15
LCD Controller
ML9040-B02GA (IC401)
CONT
E
R/W
RS
FLASH ROM (32MBit)
LH28F320BFHE
DB0 ~ DB7
IC11
RAM (1Mbit)
IC5
CY62128DV30LL
SI0 ~ SI9, FI0 ~ FI9
Keyboard
Keyboard PCBs
(M764T-KY1M/
KY2M)
EA0 ~ EA15, EA18
ED12 ~ ED19
16.384MHz
KC0 ~ KC7
CONSOLE PCB
(M740-CNA1)
uPD914AGM-JED
ARXD
ATXD
ZX-BUSYB
SYSRSTB
BEND
MOD
KEY/BUTTON/SD CARD
CONTROLLER
IC20
TC190C020AF-001
KC3 ~ KC7
FI10, KI0 ~ KI2
Buttons
PWSW
RESB
TXDO
TXDI
SWIO ~ SWI7
SWCO ~ SWC6
MA0 ~ MA16, MA25
A1 ~ A17
D0 ~ D15
Smart media Unit
BUTTON/LED
CONTROLLER
IC301
UPD65881GK-1019ETA
MA0 ~ MA21
MD0 ~ MD15
MD0 ~ MD7
DATA ACCESS
ROM (128Mbit)
MR27T12800LO
RAM (2Mbit)
LP62S2048X-70LLT/Q
RAM (128 x 16bit)
LP62S16128BV
DSP
DRAWBER
IC10
IC7
IC23
CONSOLE PCB
(M740-CNA4)
CONSOLE PCB
(M740-CNA5)
CONSOLE PCB
(M740-CNA6)
— 3 —
Page 6
CIRCUIT DESCRIPTION
KEY MATRIX
KC0KC1KC2KC3KC4KC5KC6KC7
FI0E11F11F#11G11G#11A11A#11
SI0E12F12F#12G12G#12A12A#12
FI1B11C21C#21D21D#21E21F21F#21
SI1B12C22C#22D22D#22E22F22F#22
FI2G21G#21A21A#21B21C31C#31D31
SI2G22G#22A22A#22B22C32C#32D32
FI3D#31E31F31F#31G31G#31A31A#31
SI3D#32E32F32F#32G32G#32A32A#32
FI4B31C41C#41D41D#41E41F41F#41
SI4B32C42C#42D42D#42E42F42F#42
FI5G41G#41A41A#41B41C51C#51D51
SI5G42G#42A42A#42B42C52C#52D52
FI6D#51E51F51F#51G51G#51A51A#51
SI6D#52E52F52F#52G52G#52A52A#52
FI7B51C61C#61D61D#61E61F61F#61
SI7B52C62C#62D62D#62E62F62F#62
FI8G61G#61A61A#61B61C71C#71D71
SI8G62G#62A62A#62B62C72C#72D72
FI9D#71E71F71F#71G71
SI9D#72E72F72F#72G72
Note: Each key has two contacts, the first conatct 1 and second contact 2.
[ CH10
\ CH11
] CH12
_ CH13
a CH14
b CH15
c CH16
d DSP CH
DRAWBAR ORGAN
e
f TONE
g RHYTHM
h DSP
i PIANO SETTING
j [CURSOR BUTTONS]
UP
k RIGHT
l DOWN
m LEFT
CH10
CH11
CH12
CH13
CH14
CH15
CH16
DSP CH
DRAWBAR
TONE
RHYTHM
DSP
PIANO
UP
RIGHT
DOWN
LEFT
n EXIT
AUTO HARMONIZE
o
p SPLIT
q LAYER
r 0
s 1
t 4
u 7
v 8
w 5
x 2
y z +
{ 3
| 6
} 9
~ DEMO
EXIT
HARMO
SPLIT
LAYER
0
1
4
7
8
5
2
+
3
6
9
DEMO
SW OK
2
3
8 9 0 A BC
4
6
5
7
L
M
N
O
P
D E
QRSTU V W X Y
Z[\]^ a b c d
F G H I J K
— 17 —
f
g
e
o
1
hi
m
n
p q
j
l
k
t
s
r
~
vu
}
w
|
x {
zy
Page 20
2. AC adaptor detection check.
1 Press “TONE” button.
2 When the instrument detects that an AC adaptor is plugged in, an OK sound
sounds. “ACJ OFF” appears and an NG sound sounds when the AC adaptor
is not plugged (when batteries are used).
3. Sustain jack check. (If no pedal, this check can be skipped)
1 Press “RHYTHM” button.
2 Press “Sustain pedal” .
3 Release “Sustain pedal” .
4 NG sound, “OFF” sound this case, must be audible.
4. Low Voltage detection check.
1 Press “DRAWBAR ORGAN” button.
2 OK sound must be audible.
5. Sound Source check
1 Press “7” button.
2 The MAX sin sound sounds from Left spesker.
3 Press “8” button.
4 The MAX sin sound sounds from Both spesker.
5 Press “9” button.
6 The MAX sin sound sounds from Right spesker.
Message on LCD
1 ACJ ON
1 SUS CHK
1 SUS ON
1 SUS OFF
1 VOLT HI
1 TG MAX L
1 TG MAX C
1 TG MAX R
6. ROM check
1 Press “INTRO/ENDING1” button.
7. Flash memory check
1 Press “INTRO/ENDING2” button.
8. Flash memory SUM check
1 Press “SONG MEMORY” button.
9. DSP RAM check
1 Press “VARIATION/FILL-IN 2” button
10. CPU RAM check
1 Press “SYNCHRO/FILL-IN NEXT” button.
1 ROM CHK
앗
1 ROM OK
1 FMC CHK
앗
1 FMC OK
1 FMS CHK
앗
1 FMS 7898
1 DRAM OK
1 CRAM OK
— 18 —
Page 21
11. LED check
1 Press “TEMPO쑼” button.
2 LEDs illuminate in the following order.
MODULATION
FULL RANGE CHORD
FINGERED
CASIO CHORD
DATA ACCESS
DRAWBAR ORGAN
DSP
12. LCD check
1 Press “TEMPO쑿” button.
2 Turn on all segments of the LCD.
13. Card check (If no smart media card, this check can be skipped)
1 Press “-” button.
“Err NO CARD” appears and an NG sound sounds when no card is inserted.
14. Bender check
1 Press “MODE” button.
2 Turn the “PITCH BEND WHEEL” to MAX.
3 Turn the “PITCH BEND WHEEL” to MIN.
Message on LCD
1 LED CHK
앗
앗
앗
앗
앗
앗
앗
앗
1 LED END
1 SMC CHK
앗
1 CARD OK
1 BEND CHK
2 127
1 BEND CHK
2 000
1 BEND OK
15. TUNE check (If no TUNING METER, this check can be skipped)
1 Connect the TUNING METER to the phone jack.
2 Press “8” button.
3 The TUNING METER must indicate "C".
4 Disconnect the TUNING METER from the phone jack.
16. APO check
1 Press “EXIT” button.
* Go out from TEST mode (Power off).
* The LCD turns off.
DIAGNOSTIC PROGRAM IS FINISHED.
1 Exiting
— 19 —
Page 22
EXPLODED VIEW
26
3
25
19
3
17
1640
33
28 29 30
32
26
39
31
27
18
36
37
3534
26
38
18
20
23
19
3
22
21
41
41-3
41-1
12
14
41-2
41-4
15
11
43
13
42
43
24
4-2
4-1
4
1
PSA1
2
PSA2
6
5
9
— 20 —
10
7
8
Page 23
PARTS LIST
WK-3300
Notes:This parts list does not include the cosmetic parts,
which parts are marked with item No. "R-X" in the
exploded view.
Contact our spare parts department if you need
these parts for refurbish.
1.Prices and specifications are subject to change
without prior notice.
2.As for spare parts order and supply, refer to the
"GUIDEBOOK for Spare parts Supply",
published seperately.
3.The numbers in item column correspond to the
same numbers in drawing.