Ic Block Diagram - NAD S 100 Service Manual

IC BLOCK DIAGRAM
Replace only with part number specified.
—
Capacitors: CE
-
Electrolytic, CM
-
Mylar, CP
-
Polystrere.
—
Resistors: RMF
-
Metal Film, RFU
-
Fusible.
Q19-Q20: LF441CN
LOW POWER JFET OP-AMP
Q501: 74HCTOO
QUAD 2-IN PUT NAND GATE
Q505: 4094
8-STAGE SHIFT/STORE REGISTER
WITH 3-STATE OUTPUTS
Q21 -Q22, Q201 -Q202, Q21 9-Q220, Q235-Q236:
OPAl 34PA
HIGH PERFORMANCE OP-AMP
Q504: UCN5841
SERIAL INPUT LATCHED RELAY DRIVER
Q401: LB1642
MOTOR DRIVER
Reference No Part Number Description
R39-R42 471 E-151J-2-EF RFU 0.3W 150R 5%
R43-R44 471 G-282A-2-E RMF 0.6W 2.8K 1%
R45-R48 471G-lO5A-2-E RMFO.6W 1M 1%
R49-R50
471G-1182-2-E
RMFO.6W 11.8K 1%
R51-R52 471G-132A-2-E RMF 0.6W 1.3K 1%
R53-R54 471 G-7151-2-E
RMF 0.6W 7.15K 1%
R55-R56 471G-1183-2-E RMFO6W 118K 1%
R57-R60
471 E-680J-2-EF RFU 0.3W 68R 5%
Note:
—
The components identified by
/i\
mark are critical for risk of the fire and electrical shock.
BALANCE
INVERTING
INPUT
NON-INVERTING
INPUT
V
OFFSET TRIM
INVERTING
INPUT
NON-INVERTING
IN PUT
V
OFFSET TRIM
V+
OUTPUT
NC
NC
V+
OUTPUT
BALANCE
VCC
4B
4A
4y
3B
3A
3Y
1A
lB
ly
2A
28
2Y
GND
OUTi
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
K
2—
3—
1—
15—
D
I
8-STAGE SI-lIFT
I
QS2
REGISTER
E
QSI
SJ 8-BIT STORAGE
REGISTER
I
VOD
OE
VSS
3-STATE OUTPUTS
OPo QPi QP2 QP3 QP4 QP5 OP6 QPi
4 5 6 7 14 13 12 11
—10
—9
—16
—8
— —
C
C)
0HZ
z z z
F
()
C) C
—
CD CD
—
C
>>o
0
19
20