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Model
412A
Section VI1
C
7-1. I NTR 0
D
U CTI 0 N ,
SECTION VI1
RCUIT DIAGRAMS
Figures 7-1 and 7-2 give the location of other components
within the cabinet model and rack model instruments,
7-2. This section contains information necessary to
respectively. Figure 7 4 is a schematic diagram of the Model
maintain the Model 412AIAR. Figure 7-3 shows the
412A/AR, and includes pictorial views of the circuit
location of components mounted on the range switch.
boards.
NOTES
1.
COMPONENT VALUES SHOWN AS FOLLOWS UNLESS OTHERWISE NOTED.
RESISTANCE
IN
OHMS
CAPACITANCE IN MICROFARADS
2.
h
DENOTES CIRCUIT COMMON.
3.
&
DENOTES POWER LINE GROUND.
4.
- -
DENOTES ASSEMBLY.
5 .
DENOTES MAIN SIGNAL PATH.
6.
-
DENOTES FEEDBACK PATH.
7 . 1 1 DENOTES FRONT PANEL MARKING.
8.
c
L ,
1
DENOTES REAR PANEL MARKING.
9.
DENOTES SCREWDRIVER ADJUST.
10. y
AVERAGE VALUE
SHOWN,
OPTIMUM VALUE SELECTED AT FACTORY.
11.
DC VOLTAGES MEASURED WITH RESPECT TO CIRCUIT COMMON
(A),
LINE VOLTAGE AT
115
V, AND NO
METER DEFLECTION.
7-1
00 1
29-5
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