Sanyo M7700L User Manual

TUNER ADJUSTMENT
Measuring Instruments Required at FM/SW alignment (Tuning Range and Tracking)
@ AM Standard-signal Generator
@ FM Standard-signal Generator
®@ Generator Scope :
@ Stereo Signal Generator Generator Scope atte eS re
® Loop Antenna ‘3 ped le
@ Dummy Antenna (300 ohm, balanced type) sl Eid ab ie! $ te
e VTVM nie ¢
@ Frequency Counter 7 Orerg@rre aig
@ Distortion Meter "9 P| GTP 10
® Oscilloscope ry s ee
@ Dummy Load (3.2 ohm) + ee t Te osz-5
® Alignment Tool ¥ fod rzsiew rag pot °C
% TQ, | es 1 6 oe 0ed
NOTE:
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Set the Function Switch to RADIO (ON). Then, perform
each alignment following the chart below. (Input Side) (Output Side)
Measuring Instrument Connections
at MW/LW alignment ;
FM Signal Generator
Loop Antenna ?
AM Standard Signal Generator
Dummy Antenna
VTVM
Oscilloscope Oscilloscope
[ ; Bama Load | Dummy Load
EXT. SP 32-60 3.2 ohm fee ee 3.2 ohm
iO} Pe
MW ALIGNMENT Standard test frequency 400 kHz and modulation 30% at AM
Connections Frequency
Alignment of Signal
OUTPUT Generator
Tuning Dial
Setting Adjustment Remarks
Calibration Connect standard Obtain symmetrical curve
of IF for loop antenna to Connect input and maximum amplitude,
T5,76 and T7 | output terminal of terminal of
gene-scope. gene-scope to 460 kHz T5,T6 and T7
Adjustment Place bar antenna detector output.
of 60 cm away from
IF Gain loop antenna.
Calibration Connect standard 505 kHz T10 Obtain sine wave of 400 Hz
of loop antenna to Connect VTVM with + and maximum amplitude.
Tuning Range | output of signal 3.2 ohm dummy load; 1670 kHz High End TC3
generator. and oscilloscope to
Adjustment Place bar antenna Ext. speaker terminal.| 600 kHz 600 kHz L5-1 (bar ant. coil)
of 60 cm away from
Tracking loop antenna. 1400 kHz 1400 kHz TC4
L
Repeat the above adjustments.
* Use a screwdriver with plastic grip for all adjustments.

Sanyo M7700L Specifications

General

Brand	Sanyo
Model	M7700L
Category	Cassette Player
Language	English