WHT

IgO VAL LX)/w HZ 0 WATTS

I L KCD

ICO IW

X3 V D C

rf7 FIGURE 11. SR107 AUDIO EQUALIZER CIRCUIT DIAGRAM

-- -- - -.

POWER 5 I

2 RED

h GflN

SR107.2E POWER SUPPLY

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 TO BE MADE WlTH ALL FRONT PANEL CONTROLS AT CENTER ROTATION EXCEPT I KHz CONTROL AT -15, AND REAR PANEL GAIN CONTROL AT FULL CCW RDTATION. ALL MEASURE- MENTS TO BE TAKEN USING A 10 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~ASURED WITH ZERO SIGNAL APPLIED.

5. f TAKEN WlTH 22 KOHM ISOLATION RESISTOR AT TIP OF PROBE.

FIGURE 11. SR107 AUDIO EQUALIZER CIRCUIT DIAGRAM