Sony CDP-470 - Page 11

CDP-270/470
3-4. 1C BLOCK DIAGRAMS 3-5. WAVEFORMS
IC2 CXA1081S IC3 CXA1082BS 1C4,5 CXA1291P
nd
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RFO(2) <j
FOK AMP >
EFM COMPARATOR 6)
LOOP FILTER
weddiernece UNA Na neate catiest al
RR aT DAY
12. L OATA REGISTER INPUT SHIFT REGISTER
ADORESS DECODER {2L—~TTL
OUTPUT DECODER
APPROX. lOOVmVp-p
ig! ™3 Tm4) TMS TM6
£S1-4 TGi-2 ss TMI-? PSI-3 1M?
Q a TRACKING PHASE
COMPENSATION
=e 1304SEC [*-
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REFERENCE
VOLTAGE
CIRCUIT
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OVERHEAT
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PROTECTION
CIRCUIT
i OVERCURRENT
LIMITER
CIRCUIT
(1)
APPROX. 500mVp-p
TRACKING
ERROR AMP
1C9 CXD2550P
moray og $4 $4 480nsec
B 38 2 8 120nSEC
ATTEWATOR
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8
cc2 (15) (BIT a Z 3
FIR
1 THORDER 1C10 CXD1161P-3
FIR
3 S05 [eae 5
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R-STRING
DAC
RAM FOR
43TH~ORDER
TIMING GENERATOR FIR
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NOISE SHAPER & SERIAL @PARALLEL
ede ta EIRGU IT CONVERTER
bed
120 nSEC
wane
fe 240nSEC a
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—— 3.1V
PWM R-ST RING LEVEL SHIFT
OAC x OAC i, OAC
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3
Note on Schematic Diagram:
e@
All
capacitors
are
in
wF
unless
otherwise
noted.
pF:
wuF
e
Voltages
are
taken
with
a
VOM,
(input
impedance
10M)
50WV
or
less
are
not
indicated
except
for
electrolytics
Voltage
variations
may
be
noted
due
to
norma!
produc-
and
tantalums.
tion
tolerances.
@ All resistores are in 2 and %W or less unless otherwise ® Waveforms are taken with a oscilloscope.
specified. Voliage variations may be noted due to normal produc-
e 4: Internal component. tion tolerances.
summer 1 3+ line @ Circled nurnvers referto waveforms.
: B —line
8 |: acjustment for repair Note: Note:
3 The components identi- | Les composants identifiés par
-CD
fied
by
mark
A
or
dot-
|
une
marque
sont
critiques
; ted line with mark pour fa sécurité.
®
Voltage
and
waveforms
are
de
with
respect
to
ground
are
critical
for
safety.
Ne
les
remplacer
que
par
une
under
no-signal
conditions.
Replace
only
with
part
|
piéce
portant
le
numéro
spéci-
no mark: STOP Mode number specified. fié.
( ke PLAN
—16—
|
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