Roland JP-8080 - Front and Rear Panel - Front Panel -

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A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
13
LINE OUT
[L(MONO), R]
MIDI OUT MIDI IN
+5V
-15V
VOLUME BOARD
REMOTE KBD IN
EXT. IN
INST / LOWER
(MONO)
EXT. IN
VOCAL / UPPER
MIC. IN
VOCAL / UPPER
To IC32 BCKIN IN
To IC32 XT1 IN
64Fs
256Fs
LCD UNIT [16X2]
RCM7044U-1A
Card Control
7W08, HC32, HC175
(IC38, IC41, IC42)
Bus Buffer
HCT245 (IC40)
LCD I/F
HC74 & HC574
(IC3, IC4)
8M bit FLASH ROM [70ns]
LH28F800SUT
(IC62)
1M bit SRAM [70ns]
TC551001CFL
(IC11, IC13)
CPU
HD6413002FP
(IC7)
4M bit DRAM [60ns]
HM514800DJ6Z
(IC63)
4M bit DRAM [60ns]
HM514800DJ6Z
(IC23)
4M bit DRAM [60ns]
HM514800DJ6Z
(IC24)
4M bit DRAM [60ns]
HM514800DJ6Z
(IC25)
4M bit DRAM [60ns]
HM514800DJ6Z
(IC64)
DAC
uPD63200GS
(IC36)
LPF & Buffer
OP.AMP 4570
(IC55)
Voltage
Follower
Gain 0dB
OP.AMP 4570
(IC43A)
Mic Jack
(JK401)
Sig / Limiter
Indicator
(Lower = D84)
(Upper = D85)
X' TAL 67.7376MHz
SG-8002DC
(X2)
Divider (1/768)
VHC163
(IC59, IC60, IC61)
To IC17 - 21
OSC IN
[67.7376MHz]
To IC17 - 21
SYNC IN
[2Fs=88.2kHz]
SW & LED Matrix
VR Matrix
Decoder & Driver
HC4051
(IC2, IC4, IC6, IC8,
IC10,IC11)
HC138
(IC3, IC13)
HC273
(IC7)
OP.AMP 4570
(IC1, IC5, IC9)
2SC1815
(Q7-Q14)
RN2226
(Q1-Q6, Q15-Q22)
AC IN
~
Lower
Upper
Voltage
Follower
Gain 0dB
OP.AMP 4570
(IC43B)
Mic AMP
Gain +30dB
OP.AMP 4570
(IC50)
PHONES
OUT
Headphone AMP
OP.AMP 5218
(IC56)
AMP
Gain +24.6dB
OP.AMP 4570
(IC44B)
AMP
Gain +24.6dB
OP.AMP 4570
(IC44A)
Input Volume
(Lower = VR43)
(Upper = VR44)
Lower
Upper
Lower
Upper
(Q7, Q9,
Q17, Q18, Q23)
Switching
AD Section DA Section
AD/DA PCM3001 (IC32)
ESP2 CHIP
TC170C140
(IC18)
ESP2 CHIP
TC170C140
(IC19)
ESP2 CHIP
TC170C140
(IC20)
ESP2 CHIP
TC170C140
(IC21)
X' TAL 16MHz
MA-406
(X1)
REMOTE KBD IN
Receiver
PC410
(IC45)
SWITCHING REGULATOR
KW1AA265
Card Connector
CN015S-3013-0
(CN202)
for 5V SmartMedia [2M or 4M]
Phones
Jack
(JK501)
Buffer
OP.AMP 4570
(IC37)
Master
Volume
(VR601)
MIDI IN
Receiver
PC410
(IC47)
MIDI OUT
Transmitter
HD74LS05
(IC65)
Limiter
VCA M5241L
OP.AMP 4570
(IC48, IC46, IC51)
Vocal Morph Sig.
ESP2 CHIP
TC170C140
(IC17)
PANEL BOARD
ASSY
[71017556]
MIC BOARD
ASSY
[71017589]
MAIN BOARD ASSY
[71017534]
PHONES BOARD
PHONES BOARD
ASSY
[71017590]
SW BOARD ASSY
[71017578]
CARD BOARD ASSY
[71017567]
Memory Backup
CR2032 [3V]
(BT1)
Reset
M51953
(IC2)
+15V
For Digital Reset
Reset
M51953
(IC52)
For Analog Reset
Reset
M51953
(IC67)
For IC32 Reset
BLOCK DIAGRAM
Jul, 1998
JP-8080