NAD L75 - Page 17

2-18
S5
S1
S2
6.2dB
Amp
75
dirver
6.2dB
Amp
6.2dB
Amp
S4
S3
S6
S7
20K
20K
20K
13
Vin1
V+
V-
SW2
SW1
Vout1
Vout2
Vout3
SW4
BLOCK DIAGAM (NJM2296M /MAIN IC96)
SW3
GND
SW5
Vin2
Vin3
Vin4
Vin5
1
15
11
16 10 14
12
2
9
7
5
46 8
3
20K
20K
20K
20K
20K
75
dirver
75
dirver
1
2
3
4
8
PIN FUNCITON
1. A OUTPUT
2. A-INPUT
3. A+INPUT
4. V
5. B+INPUT
6. B-INPUT
7. B OUTPUT
8. V
A
B
7
6
5
OPA2134UA / NJM 2068MD)
(OP AMP / IC12~15, 37~42, 82) IS61C256A15J (256K SRAM. IC35)
NJM2296M (VIDEO SW / IC21, 22, 23)
A0-A14
(1~10, 21,
23~26)
(11, 12,
15~19)
I/O0-I/O7
CE1
VCC
GND
20
28
13
22
27
OE
WE
DECODER
I/O
DATA
CIRCUIT
CONTROL
CIRCUIT
256 x 1024
MEMORY ARRAY
COLUMN I/O