Sanyo M-W2K Service Manual

ALIGNMENT PROCEDURES
FM ALIGNMENT Standard test frequency 400 Hz and deviation 22.5 kHz
oan
Connections Frequency fanine Dial fad : :
F ; justment emarks
Alignment OUTPUT of Signal Séiting
Generator
‘ : Connect input
Calibration Place ouptut of :
terminal of gene-
1 of gene-scope on 10.7 MHz | Lowest end} 11 and T2
scope to
IF TP1 TP2
10.7 MHz e
marker
fide oS fe oo |
2 Calibration Connect signal Connect VTVM with 87.2 MHz L3 Obtain sine-curve
of generator to antenna 4 ohm dummy load and maximum arnplitude.
Tuning Range } terminal (J1) and oscilloscope to ; =
3 tiieugh dummy speaker terminal. 108.5 MHz | Highest end CT2 (PVC)
4 | Adjustment | antenna. 80 MHz | 90 MHz L2 ai (|
of a
5 Tracking 106 MHz 106 MHz CT1 (PVC)
6 Repeat the above adjustments.
fer te
*» Use a screwdriver with plastic grip for all adjustment.
MW ALIGNMENT Standard test frequency 400 Hz and modulation 30% at AM
Connections Frequency
Step Alignment of Signal que hi Adjustment Remarks
OUTPUT Generator Setting
Calibration Obtain symmetrical curve
1 of IF : ; and maximum am@ii tude.
for AM Place output of enkcen ae
[ea Tagusient | cal tee to gene-scape to 455 kHz | Lowest end T3 and T4 hax 7
2 of P TP2 |
IF Gain ee,
po
LS Obtain sine-wave o: 400 Hz
Calibration Connect standard 515 kHz
a of loop antenna to Connect VTVM with ' and maximum ampli tude.
4 Tuning Range | output of signal 4 ohm dummy load 1660 KHz | Highest end CT5
generator. and oscilloscope to La ;
5 Adjustment | Place bar antenna speaker terminal. 600 kHz 600 kHz ishy ante 661) | Max |
of 60 cm away from :
6 Tracking loop antenna. 1400 kHz | 1400 kHz CT6
7 Repeat the above adjustments.
FM MPX ALIGNMENT
Connections Tuni ;
uning Dial : P Le
Alignment INPUT OUTPUT Setting Adjustment Remarks
Connect TP2 Connect Frequency | ;
to the GND. counter to TP3 — SVR1 eee kHz on the frequency
SW1 ALIGNMENT
——
Frequency
of Signal
Generator
Connections ;
Tuning Dial
Setting
Alignment
Adjustment
Remark;
OUTPUT
| Obtain sine-wave 9 400Hz
and maximum amp tude
Calibration
of
Tuning Range
Lowest end L6
CT3 (PVC)
LQ
Connect VTVM with eee
4 ohm dummy load
es terminal (J4) through and oscilloscope to
djustment dummy antenna Ext. speaker
of terminal.
Tracking
Connect signal
generator
to
Highest
end
7.4 MHz
2.5 MHz 2.5 MHz
6.5 MHz
Repeat the above adjustments.
j
|
6.5 MHz §
|

Sanyo M-W2K Specifications

General

Brand	Sanyo
Model	M-W2K
Category	Cassette Player
Language	English