5
DPC-X311/X517/X612
CIRCUIT DESCRIPTION
2. DSP IC : MN662780RPS2M(IC4)
2-1 Pin description
Pin No.
Pin Name
I/O
Description
ACTIVE
H
L
1
DVDD5V
-
DRAM interface power supply.
2
D0
I/O
DRAM data input/output signal 0.
3
D1
I/O
DRAM data input/output signal 1.
4
NWE
O
DRAM writing enable signal.
5
NRAS
O
DRAM RAS control signal.
6,7
D2,D3
I/O
DRAM data signal input/output.
8
NCAS0
O
DRAM CAS control signal 0.
9-19
A0-A10
O
DRAM address signal 0-10.
20
DVSS2
-
Digital ground.
21
DVDD2
-
Digital power supply.
22
PWMCK
O
Disconnected.
23
TRVSTP
O
Traverse stop signal output.
24
TVD
O
Traverse control port.
25
PC
O
Spindle moter on signal output..
ON MODE
26
ECS
O
Control signal output for spindle motor.
27
TRD
O
Kick pulse output for tracking driver.
28
FOD
O
Focus drive output.
29
FBAL
O
Focus balance adjusting output.
30
TBAL
O
Tracking balance adjusting output.
EXCEPT DPC-X311
IC6
16M D-RAM
AN8789FB
/ / /
/ / /
FROM IC4 (Rch)
J105
LINE OUT
J102
Rch
Lch
H. P JACK
NJM2073M
VOLUME
LMT.
SW
AN8838NSB
Lch
IC9
µ
-COM
MN101C439
LCD
MN662780RPS2M
DSP / DF-DAC
/Anti-shock Memory
RF
LCD REMOTE
CONTROL
key input
data
status signal
DPC-X517
(M/X/H type)only
3KEY REMOTE
CONTROL
DPC-X517
(H type)only
1-2 Microprocessor periphery block diagram
