Heathkit IM-4180 - Page 40

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ISTORS ARE 1/4-WATT, 5% TOLERANCE |
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=
OWING SYMBOLS ARE USED ON THIS S$
CIRCUIT BOARD GROUND.
CHASSIS GROUND.
INPUT VOLTMETER FROM THE POINT TANG
+
Cc» DC VOLTAGE MEASUREMENT TAKEN WITH
GROUND
WITH
NO
SIGNAL
INPUT.
VOLT
SIGNAL
INPUT
DC
VOLTAGE,
(SEE
PREV
CIRCUIT
BOARD
WIRE
CONNECTIONS,
—a>—
CIRCUIT
BOARD
CONNECTOR
PINS
AND
'
(>
PIN>—FEMALE
CONNECTOR},
st
INDICATES
A
CLOCKWISE
ROTATION
OF
INDICATES
A
CHASSES-MOUNTED
COMP
(A)
RS
CORRESPOND
TO
TEST
PO
DIAGRAM
AT
WHICH
THE
WA
DEVIATION
METER
SETUP
PROCEDURE
TO
1S
AS
FOLLOWS:
INPUT CARRIER FREQUENCY: 2
DEVIATION FREQUENCY: !
MODULATION FREQUENCY:
SIGNAL
TUNED
FOR
FUNDAMENTAL
DEVIATION
METER
WITH
GAEN
COR
FULL-SCALE
METER
READING,
CIRCUIT
BOARD
X-RAY
VIEWS
ARE
SHOWN
ON
#1
BOOKLET
PAGE
ll.
SEMICONDUCTOR CHARTS ARE SHOWN ON PAGES
PUSHBUTTON
SWETCH
SWIOI
HAS
SEVERAL
SEGN
SOME
OF
THE
SEGMENTS
ARE
2-PART,
ARE
NUMI
AND
MAY
BE
SHOWN
EN
DIFFERENT
AREAS
OF
TH
SWETCH SW101 1S SHOWN WITH ALL PUSHBUTTON
RELEASED (OUT).