Sony CFS-1055 - Supplement-2: Tuner Board Schematic Diagram (US Model)

CFS-1055
© SCHEMATIC DIAGRAM (US model only) (Service Manual See page 15)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
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FM [ TUNER BOARD ]
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CXA1238S
(=) FM BISCRI
z z Qa =
oO = _ oO ZO ww re uw ©
oO o kK lu oc i = © on Q ao o a wW
= N oO <= > ir ia J Wi < z a ah eI ac
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1 < < Le ire < cw = F< a no ao Po a = oo >
(8) vco
MO:0.5, ST:0.9 MO:0.5, ST:0.9
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at
ay C3
2 100p_CT2 L2
D FM FREQUENCY
I COVERAGE
Porton +B
cV1-4 L-CH TO MAIN
TUNING: L3 R-CH BOARS
, AM GND CNP304
FERRITE-ROB +B (FOR STELB) | (Service Manual
E C30 ANTENNA BAND See Page 17)
FM/AM
SWITCH
I
|
CT3, L3 CT4, £4
F AM_ TRACKING AM FREQUENCY 15a3
COVERAGE .
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Note:
¢ All capacitors are in wF unless otherwise noted. pF: wuF
50 WV or less are not indicated except for electrolytics
and tantalums.
¢ All resistors are in Q and '/4W or less unless otherwise
specified.
* A tinternal component.
. : B+ Line.
¢ [—] : adjustment for repair.
¢ Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
( ) : AM
* Voltages are taken with a VOM (Input impedance 10 MQ).
Voltage variations may be noted due to normal produc-
tion tolerances.
* Signal path.
c> :FM