Sanyo M9930K - Parts Location and Alignment; Parts Location Overview; SW2 Alignment Procedure

PARTS LOCATION
Th Ti
lili
©O}%3.,
CT-4(sW1)
FM— MW— SWI— SW2
L106
L113 swi eT 4
O
© ‘els 6! 10 - FINE
So pO GTeg TUNING
ee CT-7 Sle 7301
MW acs
|) ]1304
@TP-4
|@]r305 Lo Oy 19 KHz
a FZr-93
10K(B)
— T 303 IC 501
Q) TP-3
©
(S— R311 270
LED(-) LED(+)
MPX LED
SW2 ALIGNMENT
Connections VTVM
Oscilloscope
Adjusting
ice SG frequency Position of tuning dial Adjustment
circuit
Output
6.8 MHz
(400 Hz 30% Low end of dial scale.
Connect
AM
SG.
modulation)
to ANT terminal Connect VTVM to
through |RE EXT. SP. Terminals 22.5 MHz
dummy.
(400
Hz
30%
High
end
of
dial
scale.
modulation)
8.0 MHz
.
3 Connect AM SG. inseaeetanl 8.0 MHz on dial scale.
NT to ANT termina! Connect VTVM to
ANT.
|
through
IRE
EXT.
SP.
terminals.
Sane
|
A dummy. (400 Hz 30% 21.0 MHz on dial scale.
modulation)
Repeat adjustments.
PREPARE: 1. Set the Fine tuning to mechanical center at cover adjust. 4. Use screwdriver with plastic for all adjustments.
2. Set the dial pointer to very left line dial scale. 5. Selector switch to “SW2".
3. Connect signal generator to dummy antenna.