Marantz SR5002, Service Manual

Page: 59 / 122

81
INPUT STATES
”ON” CHANNEL
INHIBIT C B A
L L L L 0
L L L H 1
L L H L 2
L L H H 3
L H L L 4
L H L H 5
L H H L 6
L H H H 7
H X X X NONE
X: DON’T CARE
PIN No SYMBOL NAME AND FUNCTION
3 COM
OUT/IN
Common Output/input
6 INH INHIBIT Input
7 V
EE
Negative Supply Voltage
11, 10, 9 A, B, C Select Inputs
13, 14, 15,
12, 1, 5, 2, 4
0 TO 7 Independent Input/Outputs
8 GND Ground (0V)
16 V
CC
Positive Supply Voltage
Column Addr.
Latch & Counter
Burst Length
Counter
Refresh
Interval Timer
Refresh
Counter
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
Address
Register
I/O Control Test Mode Mode Register
Self Refresh Counter
Column Decoder
Sense AMP & I/O gates
512Kx16
Bank 0
Column Decoder
Sense AMP & I/O gates
512Kx16
Bank 1
RAS
CAS
CS
WE
UDQM
LDQM
CKE
Precharge
Overflow
Column Active
Row Active
Address[0:10]
CLK
BA(A11)
State Machi
n
e
Ro
w De
c
o
d
e
r
Ro
w
A
d
dr.
La
tch
/P
re
d
e
c
o
d
e
r
Auto/Self Refresh
R
e
f.
Ad
dr.[0:1
1]
D
a
ta
Inpu
t/Outpu
t Bu
ffers
Ro
w Add
r. L
a
tc
h/
Pred
ecod
er
IC41 : 57V161610ET7
IC42 : M74HC4051RM