Arcam Delta80 tun sm
This is the 19 pages manual for Arcam Delta80 tun sm.
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Extracted text from Arcam Delta80 tun sm (Ocr-read)
Page 1
ARCAM
DELTA 80 FM/AM TUNER
SERVICE MANUAL
Page 2
DELTA 80 SERVICE MANUAL
ARCAM DELTA 80 SERVICE MANUAL
Issue 3 05/07/91 serial nos. 001-
Arcam Drawing No. H04/0007
CONTENTS
CIRCUIT DESCRIPTION ......................................... 2
FM front end ............................................ 2
FM IF stage ............................................. 2
AM section .............................................. 4
Stereo decoder ........................................... 4
Muting ................................................. 5
Digital Frequency Display .................................. 5
Frequency Counter ....................................... 6
Slgnal Strength Meter ..................................... 6
On Tune Indicator ........................................ 7
Tunlng Voltage System .................................... 7
Power Supply ............................................ 7
TEST POINTS ................................................. 8
ALIGNMENT OF TUNER ......................................... 9
Reference voltage ......................................... 9
FM IF section and stereo decoder ............................ 9
Signal Strength Meter ..................................... 10
AM Section MW .......................................... 10
AM Section LW ........................................... 11
SERVICING OPERATIONS ....................................... 12
Change of mains voltage ................................... 12
Change of de-emphasis .................................... 13
CIRCUIT DIAGRAMS ............................................ 13