NAD 7130 - NAD 7130 Schematic Diagrams and Component Location; Amplifier Schematic Diagram

SCHEMATIC
DIAGRAM
N
AD71
30
AMPLIFIER
FROM
TUNER
L
CH
R
CH
9 9
TO
TUNER
PCB
9 9
J3-3
RECK
NOTES-
1. RESISTOR ARE
1/4W
5V. UNLESS
OTHERWISE
SPECIFIED.
VR302-b
TREBLE
2.
X
DENOTES
RESISTORS MOUNTED UP FROM PCB
3.
[17)
DENOTES
PARTS MOUNTED ON
MAIN
HEATSINK.
4.
-X-
R461
AND
R462 USED
FOR
IDLING.
CORRENT
ADJUST ONLY.
MUST
BE
SHORTED
IN
NORMAL OPERATION.
5.
VOLTAGES
SHOWN ARE MEASURED
,
W ITH NO
SIGNAL
APPLIED.
6.
SWITCHES ARE
DRAWN
IN OUT POSITION
EXCEDT
IMPEDANCE
SWITCH
DRAWN
IN 8
OHM (HIGH)
POSITION.
7.
(
)
DENOTES VOLTAGES
MEASURED
WITH
IMPEDANCE
SWITCH
IN
4 OHM NORNAL
POSITION.
8
t
DENOTES LOW LEAKAGE
CAPACITORS.
9.
THIS
SCHEMATIC INCLUDES SWITCH.
A.
SW-1 POWER
SW.
B.
SW-2
Mm/mc
SELECTOR.
13
-
14