Grundig 2420 U Schematic

Page 1

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ALTERNATE Fhl
ANTENNA

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FM MATCHING srus
men »

-fi-_--h-----------fi

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3

ss- .é

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3%
"ream

1.50 4:

r------I----------"--- -'
B
I

-_-_-__-__-______-___-___--fi.o----------------dfl------------------fi---fi~~hi---

LINK ON ANTENNA TERIIIINM.
BOARD. CUT WHEN EXTERNAL
AM ANTENNA IS USED. '

AM ANTENNA

TERMINALS ; "- 01]

-'

PHOMJ SWITCH

AM SWITCH

Resistors are ii2 watt or less and rated
10$ or 205 unless otherwise indicated.

Voltage measurements taken with vacuum tube voltmeter.

All controls set ior normal operation, no signal applied.

. Measured values are irom secret pin or terminal to common ground.
. All terminals viewed irom bottom unless otherwise designated.

. Nimbus assigned to terminals may not be [mind on the unit.

. Su ppty voltage maintained at rated value [or voltage readings.

omwa-a
I C

A PHOTOFACT STAN DARD NOTATION SCHEMATIC
0 Howard W. Sums 8- CD. Inc.,1965

PAGE 2

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SW SW ITCH

OFF SWITCH

MS FUNCTION SWITCH
SHOWN IN FM POSITION.

TP-TIE POINT

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SW SW ITCH

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AM SWITCH

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159! N015 27a

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021 21

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1.10 2 TP
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0 on

020.

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32:35

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SW SWITCH

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AM SWITCH

BY

RESISTANCE MEASUREMI

Pinz Pin3 _ Pin _ Pins find

330K 1509 en. m 17.x

' 3.6rnegA ""

1.252 1209 . FIL nu. 37m

390K or: Flt. FIL uc

30K me _ en. en 15mg

"5 _ m3? 2.?meg _ NC on .FIL Fit. most
V5 3.34 NC sax 1m PIL FIL NC

m'msunmems MADE m "FM" 'etismou {muss ommse DESIGNAT

A MEASURED IN "AM" POSITION.

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