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AMPLIFIER BOARD (A\)
I
EQUALIZER BOARD
( ~ a i
NOTES
:
I, SPECIFIED.
ALL RESISTORS l/4 WATT, 10% UNLESS OTHERWISE
rt/
CHASSIS GROUND
.$.
CIRCUIT BOARD
GROUND
0
D.C.
VOLTAGE
1 - 1
A.C VOLTAGE
4 . VOLTAGE MEASUREMENTS
T O
BE MADE
WlTH
ALL FRONT
PANEL CONTROLS AT CENTER ROTATION EXCEPT I
KHz CONTROL
AT -15,
AND REAR PANEL GAIN CONTROL A T FULL
CCW
RDTATION. ALL MEASURE-
MENTS T O BE TAKEN USING A 1 0 MEGOHM VTVM.
A.C.
LINE
-
I20
V.A.C., 60 Hz. ALL VOLTAGES SHOWN ARE *20Z
A.C. VOLTAGES MEASURED WlTH I VOLT,
l
KHz
INPUT
THROUGH 600a
LINE OUTPUT W A D W WlTH 600n.
D.C. VOLTAGES
M ~ A S U R E D
WITH ZERO SIGNAL APPLIED.
5.
f
TAKEN
WlTH
2 2
KOHM ISOLATION RESISTOR AT
TIP OF PROBE.
FIGURE 11.
SR107 AUDIO EQUALIZER CIRCUIT DIAGRAM
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