2.BLOCK DIAGRAM
&
4.WIRING CONNECTION
XK-5
XK-5
UPPER DRAWBARS
VRH-50A
LOWER DRAWBARS
VRH-50B
OLED Unit 20x2
LE S LIE 11P IN
E X P -100F
61key 3 contact Keyboard Ass'y
KCH-21A,KCH-22A,KCH-23A
U3
MAIN CPU
24MHz
AC IN
with Power OFF Relay
OMRON A8GS-D1385
SWH-536A(1/2)
SWH-537A
SWH-538A
SWH-536A
(2/2)
ROTARY
SW
J410
J414
J4
06
J4
05
J407
SW&LED
JK
1
-15V
VOLUME
SW&LED
POWER SW
SWITCHING POWER SUPPLY
UPPER DRAWBARS
VRH-50A
LOWER DRAWBARS
VRH-50B
V1
VACUUM
TUBE
12AU7
V2
VACUUM
TUBE
12AX7
J401 J404
J4
02
VOLUME
SW&LED
Rotary Encoder
J4
08
J409
U2
SUB
CPU
PEDAL
DRAW
BARS
DB-602C
J4
11
J4
13
U7
SUB
CPU
+3.3V
+3.3V
JK
2
JK
7
JK
6
JK
4
JK5
JK3
SW2
SW1
J308
J305
J307
J303
J304
J311
J312
J3
02
J3
01
J306
E X P -50/E X P -20 FS -9H
MI
D
I
IN
1
MI
D
I
IN
2
MI
D
I
O
U
T
FO
O
T
C
N
T
1
IN
FO
O
T
C
N
T
2
IN
TY
P
E
SE
L
EC
T
TY
P
E
SE
L
EC
T
HE
A
D
P
H
O
NE
LI
N
E
O
U
T
L
/M
O
N
O
LI
N
E
O
U
T
R
100～240V
50/60Hz
MXH-40A
MGH-106A
J2
J1
US B A type
HOS T
US B B type
DE V ICE
JK3
JK1
U15
DSP
JK2
JK4
microSD
microSD
J7
J5
01
JK
1
JK
3
JK2
CNH-44A
HE
A
D
P
H
O
NE
CU
-1
to
L
o
w
e
r
U19
SUB CPU
U3
CODEC
4IN/8OUT
+30V
+12.6V
heater
+3.3V
U26
ELECTRONIC
VOLUME
+13V
Digital Audio Data
(TDM8ch 44.1kHz 24bit)
U27
ELECTRONIC
VOLUME
U17
DC/DC
CONVERTER
LT1534
-15V
+15V
U18
DC/DC
CONVERTER
AOZ1905
+13V +30V
U20
DC/DC
CONVERTER
AOZ1905
+16V
Lamp
+16V
Lamp
+15V
+5V
Lamp
GND
AD_LAMP
(EXP-100F INSERT DETECT)
+5V
charge pump
+5V
+5V
+5V
+5V
+5V
power off relay coil
+5V 455mA
SPI(SWSCAN),RESET_SWLED
Pa
ra
le
ll
8b
it(
OL
ED
)
SPI(SWSCAN),RESET_SWLED
SPI(KEYSCAN)
I2C(CODEC,VOLUME Control)
U29
OPAMP
NJU7032M
for TUBE BIAS
-15V
U12,13,14,15,16
OPAMP
NJM4580M
U4,5,9,11,23,28
OPAMP
NJM4580M
-15V
+15V
+15V
-15V
+5V
+5V
+5V
+5V
D5
U12
POWER
MANAGEMENT
IC (PMIC)
+4.2V
U4,5,6,7
DDR3 RAM
I2C(DSP Control)
SPI
SPI
+5V
U17
DDR3 RAM
Digital Audio Data
(TDM4ch 44.1kHz 24bit)
U22
CLOCK
GENERATOR
25MHz
U23,24,26,27,28,29,30
Power Management Circuit
+5V
U11
FRAM
U20
Serial
Flash
ROM
Dig
ital
Aud
io D
ata
(TD
M8
ch 4
4.1
kHz
24
bit)
1.1V
,1.0V
,1.8V
,
1.5V
,0.75V
+3.3V
5V
,1.375V
,2.8V
,
1.8V
,3.3V
,
1.5V
,0.75V
+3.3V
+5V
U25
SUB CPU
SPI
(SW
SCA
N)
SPI
(KE
YSC
AN)
I2
C(
CO
D
EC
,V
OL
U
M
E
Co
nt
ro
l)
GP
IO
(s
ee
s
ig
na
l
li
st
)
UA
R
T1
,2
,4
Pa
ral
ell
8b
it(O
LE
D)
UART1,2,4
GPIO(see signal list)
SPI(SWSCAN)
Paralell 8bit(OLED)
SPI
(SW
SCAN
)
RE
SE
T_
SW
LE
D
Pa
ra
le
ll
8
bi
t(
O
LE
D
)
UART2,4
UART1
U30,Q6,Q10
POWER ON/OFF
Pop Noise Mute
Circuit
+5V
5V_SENS
OMRON S8EX-N03005
30W/5V
5V,3.3V,1.8V
+3.3V,+1.8V
PERIPHERAL
MOTHER
RIGHT PANEL
END BLOCK
LEFT PANEL
U7,10
OPAMP
OPA1662AIDGK
+15V
-15V
+13V
U32
REG.
+5V
+13V
+3.3V
+3.3V
J314
sig
na
ls
for
em
ula
tor
J6
si
gn
al
s
fo
r
em
ul
at
or
MIDI
I/F
Level
shift
+3.3V
+1.8V
RL2,5
PhotMOS
Relay
RL1
PhotMOS
Relay
RL3,4
PhotMOS
Relay
MU
TE
_RE
LA
Y
MUTE_RELAY
MUTE_RELAY
MUTE_RELAY
Q11,12
Power ON/OFF
Pop Noise Mute
Circuit
WR-HZ185-A
WR-HZ185-B
WR-HZ185-C
WR-HZ185-D
WR-HZ185-E
WR-HZ185-F
WR-HZ185-G
WR-HZ185-H
WR-HZ185-J
WR-HZ185-K
WR-HZ185-K
WR-HZ185-L
WR-HZ185-L
WR-DB602C-A
F16D700
WR-XK3-S
FFC20B190
FFC20B190
FFC20A50
P O W E R O N
S E Q U E N C E
D C / D C C O N V E R T E R
R E G U L A T O R
L O A D S W I T C H
Control & Generate
i.MX6
ARM A9
1GHz
Quad
C6657
1GHz
Dual
3.3V,1.8V
KEYSCAN
JACK INSERT DETECT
GPIO signal list
name
description
RESET_KEY
reset for sub CPU(keyscan)
RESET_SWLED reset for sub CPU(swscan)
RESET_LK
reset for sub CPU(XLK-5)
POWER_OFF
power sw remote off
SLOW
leslie control(slow)
FAST
leslie control(fast)
MUTE
audio mute when turn on/off power
MUTE
SLOW
FAST
Q5
driver
PO
W
ER
_
O
FF
Q1,2,4
driver
LESLIE_DETECT
Q3
+3.3V
+3.3V
LESLIE_DETECT
AD_LAMP
+3.3V
JACK INSERT DETECT
RES
ET
AD_EXP100
AD_FOOT1,2
AD_FOOT1,2
RESET
RESET_KEY
+16V
Lamp
Level
shift
+5V
+3.3V
bus
SW
SPI
SPI(DSP
software update)
SPI(clock gen
control)
I2C(PMIC Control)
I2C(PMIC Control)
U34
load
SW
+3.3V
+1.5V
+3.3V
Level
shift
+5V
RESET_LK
+10.5V
