4
DPC-191/391/492
CIRCUIT DESCRIPTION
Pin No.
Pin name
I/O
Function description
Active
74
VDD
–
SUPPLY VOLTAGE (ESP ON = 4.2V / OFF = 3.2V)
75
LRST
O
RESET SIGNAL for MN662740RE, SM5859AF
76
SQCK
O
SUBQ READ TIMING CLOCK to MN662740RE
77
SUBQ
I
SUBQ DATA from MN 662740RE
78
–
O
NOT USED
79
YMLD
O
COMMAND DATA LATCH (LOAD) for SM5859AF
80
YMCLK
O
COMMAND CLOCK for SM5859AF
81
ZSENSE
I
SENSITIVE SIGNAL from SM5859AF
82
YMDATA
O
COMMAND DATA for SM5859AF
83
BLKCK
I
SUBQ READ REQUEST SIGNAL IN.
84
–
I
GND
1-2 Voltage of pin No. 8 (IC3) / Key function.
KEY
V
Key of unit (Remocon)
0.00
PLAY/PAUSE (
6
)
0.75
STOP (
7
)
1.00
UP (
¢
)
1.23
B. BOOST / P. MODE
1.43
DOWN (
4
)
1.69
REPEAT
2.13
MUTE (Only Remocon)
2.55
KEY OFF
3.0
1-3 Microprocessor periphery block diagram
IC5
SHOCKPLOOF
SM5859AF
IC6
DRAM
MN171603
HFJ1
AN8819
NFB-M
EXCEPT FOR DPC-191
(KSM-542AAA)
/ / /
/ / /
/ / /
FROM IC4 (Rch)
J105
LINE OUT
J102
Rch
Lch
H. P JACK
NJM2073M
VOLUME
J103
REMOTE
DPC-191 (M2 TYPE)
DPC-391 (M TYPE)
LMT.
SW
AN8806SB
Lch
IC7
DPC-191
98.11.30
3:25
PM
y [ W 5
