Heathkit IM 2215 Schematic

Page 1

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: MAIN CIRCUIT BOARD ' 1' I DISPLAY CIRCUIT BOARD
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SCHEMATIC or THE : W .2: )D-g- T A 3*
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HEAIHKII T swaA Cm L I l @(9 @@
PORTABLE DIGITAL : @I 7;! I swe . _ _ .
MULTIMETER : . I T (D 69
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MODEL IM 2215 : DECIMAL DPOINT : *sEcnous NOT USED
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-_ I GIBMRECTEERSETEEI; @5sz DECTMAL oowT/ LOW SAT" I: 2 (DA Go 0
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NOTES: I : @I'I
1- REFER TO THE CIRCU 50" X'R ms FOR THE E".............._........................._............................ - -------{)-----------------_-----------.I C 0*
PHYSICAL LOCATION OF PARTST a RED
A B C
2, REFER To THE COMPONENT IDENTIFICATION SECTION 94 .NchAns Dc you: MEASuREMENT WITH v/Q - | l +
FOR THE TOLERANCE, WATTAGE, ANO TEMPERATURE |C OM, COM INPUT JACKS SHORTEDVOUIGES ARE lwl L- swa "EQQQQQIIG
COEFFICIENT OFRESISTORS SHOWN ON THE SCHEMAT . MEASURED WITH RESPECT TO POWER GROUND. D: D: Dr 1 u
@069 ES@@ I5®
3L RESISTOR VALUES ARE IN OHMS Ik-TOOO, M-l,000000). GINDICMES DC VOLTAGE MIASURIMIM WHH swa [ E n
S POS|T|0N AND VIQ AND COM INPUT
4 CAPACITOR VALUES LARGER THAN 1.0 ARE IN PF AND CNSMSHORTED. VOUIGES I MEASURED WW 5:: mm" "5 50): VIE03T'F'CWDN
3:310}? ::ELCUIEFSIELT§SS MN 1-0 A V F UNLESS RESPECT TO POWER GROUND. wmrow
w . Copyrlgm © 1919
ROUND ll, SWITCHES ARE SHOWN IN THE ZODMV DC POSITION, HeathCompany
5T INDICATES POWERS T

<7
W
T.|:I
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6 INDICATES LOW-NOISE GROUND.
INDICATES A WIRE CONNECTION TO A CIRCUIT BOARD.

INDICATES A TEST POINT

NOTE: ALL VOLTAGES WERE MEASURED AT NOMINAL
BATTERY VOLTAGE (9V) WITH A 10 MO INPUT IMPEDANCE

VOLTMETERI VOLTAGES MAY VARY £207: EXCEPT AS NOTEDI

ALL WAVEFORMS WERE MEASURED AT NOMINAL BATTERY
VOLTAGE (9V) WITH LOWCAPACITANCE, TOMQ PROBE.
LEVELS MAY VARY 210%

Part of 595-2233-02

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