8
DGX-620/YPG-625
BLOCK DIAGRAM
28CA1-2001000277
Keyboard(GHL)
88KEY
with touch response
B[1-15]
N[11-16]
N[21-26]
(C#5~C7)
(A-1~C2)
(C#2~C5)
(R)
(L)
ROTARY
ENCODER
TO HOST
TO DEVICE
USB
SUSTAIN
CONTRAST
DATA ENTRY
BACK LIGHT
STANDBY/ON
11
14
Vcc
8
6
1
R
L
PHONES/
OUTPUT
POWER AMP
6W X 2
LA4625
LCD
DISPLAY
320 X 240
STN
L
TWEETER
3cm
TWEETER
3cm
R
WOOFER
12cm
4
WOOFER
12cm
4
6MHz
X301
USB
CONTROLLER
DC/DC
CONVERTER
+5D
+5D
+21~27V
+29V
CPU
5MHz
SW
MATRIX
LED
SW
MATRIX
LED
LED
DRIVER
16.9344
MHz
RESET
3.6V
MA/MD
(128P)
RXD1 TXD1
SD0
PD1,2
ICN
PD3 *A
*A:24,47,66,90,120
*B:15,46,89,119
*B
+3.3D
(64P)
ISP1161A
(8P)
+2.5D
+5D
128M
ROM
PROG
/WAVE
8M
FLASH
ROM
16M
DRAM
DAC
24bit
ADC
8bit
PCM1742K
LPF
MASTER
VOLUME
LCDC
+3.3V
REG.
+2.5V
REG.
+5V
REG.
D101
FZ001
+5D
+3.3D
+5A
+3.3D
+5A
+2.5D
CS0:128M ROM
CS1:LCDC
CS3:8M FLASH
CS5:USBC
+5D
+5A
IC201
(64P)
S1D13700F00A
PB0-7
IN[0-6]
IN[0-6]
PA[4-7]
PA[0-3]
SYSCLK, BCLK, WCLK
BCLK, WCLK
MA0-23
MD0-15
XD0-3
YD,LP
XCSL,WF
PA0-7
PITCH BEND
uPD789022GB
22
27
R704
18,38
14,15
38
2
7
14
2
8
41
37
38
SDI
8
2
6
16
20
4
5
+3.3D
+3.3D
7,12,22,25
32,40,48,55
+3.3D
37
+3.3D
1,6
25
+3.3D
56,58
37
40
X101
CN202(2P)
CN201
(2P)
CN203(4P)
DC IN 12V
YMW767-V
12,13
CPU
1
7
L
R
PITCH BEND
+5V
3
3
1
1
2
2
REG.
PA-5D
(AC Adaptor)
■