Sony CFS-903L - Semiconductor Lead Layouts

SECTION 5
DIAGRAMS
Note on Schematic Diagram:
@ All capacitors are in uF unless otherwise noted. pF: uur
5OWV or less are not indicated except for electrolytics
and tantalums.
@ All resistors are in Q and ,W ¢ or less unless otherwise
specified.
@ Tota! current is measured with no cassette installed.
@ Power voltage is de 9 V and fed with regulated dc power
supply from external power voltage jack.
e Voltages are dc with respect to ground under no-signal
(detuned) conditions.
RADIO SECTION
no mark: FM
( ): AM
AUDIO SECTION
no mark: PB
( ): REC
(( ): AMS
© Voltages are taken with a VOM (10 MQ/V).
Voltage variations may be noted due to normal produc-
tion tolerances,
@ Signal path.
= :FM XD :PB
xX» : REC
5-1. SEMICONDUCTOR LEAD LAYOUTS
BA338 2SA952
123456789 |
Ec 8
BA5410
TLR124
tong i
anode cathode
DTA114ES
DTC114ES
DTC143TS
i cathode
t |
&
+ ode
c & =
188119
2S8A733-K
2S8C1815GR
28C2001
28D 1387
1 2 3
5-2, SCHEMATIC DIAGRAM (Tuner Section)
(TUNER BOARD)
ANTI
TELESCOPIC
ANTENNA
188133 188133
—,\S bat
=O
oO
NyeclQ
N Jala
<
m
oO
s1-1
$1-3
@ IC Block Diagram
C1 CXA1238S
0
aes
on eee
Ie CXAT 2385
Yo
FM/AM FRONT- END.
FM/AM IF AMP. DET
FM STEREO DEMODULATION
IC1
CXAI238S
1a)
MONO: 0.6 (0.6)
St: 10)
\
1.0010}
0.9 (0.9)
"C7 47n 10V
R7 220k
RS 220k
Sl;
270p (p.p)
CV.
13U3) 4
vei [FINE TUNING
2sc2410s\\f) 100k B
DEPENDING ON POSITION
C30 20p CH ~=R20 700 OF NR
MIN: :1,2 (1.2)
Q2 CENTER : 0.6 (0.6)
FINE TUNING MAX +0{0)
oO 4
Zw oO O i oO
ar ee ae ea rd
TE aga \N 5
[alee [on + a a © ee ©) Ik x
se Z odcdt LH kb ™ WwW o
eso SF m < < aa =
C7421) (3) (2) Ge)
R10 10k 1.70.7)
x
oO
e)
>
ox
RV1
22k
i cis
7 104 50V
R16 22k
C20 R15 10k
KO
4.2 (4.2) es O| ne
g9mA (7mA)
11
Refer to page 9.