Sony ST-V702 - Page 6

ST-V502 ST- V502
3-3. TUNER SECTION PRINTED WIRING BOARD
3-2. IC BLOCK DIAGRAMS
A)
iis
me
op
Ons
IC21
LA1851N
m
ol
cm
' roa +
VN NMOWOODWIOADOUCOOQOODUGAR <M
P292900
* io
La aR i
F
E
E
F
D
E
E
C-
C
B
A
C
C
C81 LC7218
|
PHASE "a
SWALLOW 2 BIT
DETECTOR
y
CHARGE
COUNTER
PROGRAMMABLE
PUMP
W/16,
1/1?
BIT
a
DIVIDER
SHIFT
REGISTER
UNIVERSAL
LATCH
COUNTER
ee
By
z
Dp g
=i
of
SJ
z
on ox cos
s
¥ de
|
prilsqe
! eal
eo -
REF
a
<3)
1C701 LA5667
CONTROL
@
Note
on
Schematie
Digmam
@®
*D609.
*D610:
See
page
2
for
Note
on
Ceramic
Filter
e
(7:
adjustment
for
repair.
REG (CF1,2,3) & Replacement. e Voltage and waveforms are de with respect to ground
; : ignal (detuned) conditions.
@ All capacitors are in wF unless otherwise noted. pF: uuF BAG Reee :
SOWV or less are not indicated except for electrolytics no mark - FM
and tantalums. ( ) .AM
e
Note
on
Printed
Wiring
Board
®
All
resistors
are
in
2
and
Y,W
or
less
unless
otherwise
‘
2a
EN
@
Voltages
are
taken
with
a
VOM
(Input
impedance
10M).
® oO— : parts extracted from the component side. specified. es
e
Ms:
parts
mounted
on
the
conductor
side.
e
—
;
internal
component.
Voltage
variations
may
be
noted
due
to
normal
produc-
@
=f
&
indicates
side
identified
with
part
number.
e
ter
-
nonflammabie
resistor.
tion
tolerances.
©
WG:
West
Germany
model
e
EES
:
B+
Line
@
Signal
path.
©iT: Italian model e E@ - B-Line o> :FM
eWG: West Germany modei
elT : Italian model