Read Sony CFM-20 (serv.man2) Service Manual online
9
CFM-20
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz<516kHz>
CT3
1,680kHz (1780kHz) <1,630kHz>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
600kHz
CT4
1,400kHz (1500kHz)
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
87.00MHz (86.50MHz) <87.35MHz>
CT1
108.30MHz (109.50MHz) <108.25MHz>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
87.00MHz (86.50MHz) <87.35MHz>
CT2
108.30MHz (109.50MHz) <108.25MHz>
( ) : C&SA, MX, TW model
< > : IT model
< > : IT model
Adjustment Location : MAIN board
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
L5
10.7MHz
( ) : C&SA, MX, TW model
< > : IT model
< > : IT model
[MAIN BOARD]
(Conductor side)
(Conductor side)
CT3 : AM Frequency Coverage Adjustment
CT4 : AM Tracking Adjustment
CT2: FM Tracking Adjustment
CT1 : FM Frequency
Coverage Adjustment
Coverage Adjustment
[MAIN BOARD]
(Component side)
(Component side)
L5 : FM IF Adjustment
T1: AM IF Adjustment
L1: FM Tracking Adjustment
L3: AM Tracking Adjustment
L4 : AM Frequency
Coverage Adjustment
Coverage Adjustment
L2: FM Frequency
Coverage Adjustment
Coverage Adjustment
• Abbreviation
MX
: Mexican
IT
: Italian
TW
: Taiwan
C&SA : Central and South America
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