Sony ICF-SW22 - Page 5

SECTION 3
ELECTRICAL ADJUSTMENTS
procedure :
no mark : AEP, UK, Italian, Saudi Arabia model
( ) :E, Tourist model
BAND switch :MW
AM FF signal
geveraiol, Put the lead-wire
Td antenna close to
the set.
(Cy
30% amplitude modulation by 400Hz
signal.
Output level: as low as possible
procedure :
BAND switch :SW
AM PF signal
generator
0.01 uF
(= }_ telescopic
antenna
; : terminal
30% amplitude modulation by
400Hz signal.
Output level : as low as possible
procedure :
BAND Switch :FM
FM PF signal
generator
0.01 uF
(C7 ——F [- telescopic
2 a terminal
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
set
1
er
phones jack
@ Repeat the procedures in each adjustment several times,
and the frequency coverage and tracking adjustments
should be finally done by the trimmer capacitors.
@ SW1 to 7 Tracking Adjustment frequencies are in a line
on the scale.
Therefore, on adjusting, first SW 6.1MHz and after adjust
SW2 to 7 Tracking without moving the dial pointer.
MW IF ADJUSTMENT
Adjust for a maximum reading on VTVM.
455kKHz
SW IF (1) ADJUSTMENT
Adjust for a maximum reading on VT VM.
10.6MHz
SW IF (2) ADJUSTMENT
Adjust for a maximum reading on VTVM.
45SKHz
SW1 FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on VT VM.
5.75MHz
6.45MHz
SW1 TRACKING ADJUSTMENT
Adjust for a maximum reading on VT VM.
SW2 TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
SW3 TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
9.7MHz.
SW4 TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
11.94MHz
SW5 TRACKING ADJUSTMENT
Adjust for a maximum reading on VT VM.
15.325MHz
SW6 TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
17.825MHz
SW7 TRACKING ADJUSTMENT
Adjust for a maximum reading on VITVM.
21.65MHz