Tuner Section - Sanyo GCD 2000 Service Manual

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IC BLOCK DAIGRAM
TUNER SECTION
IC201 LA1265 (Tuner System)
FMJF
IN
Vcc
i
b
AM-RF
J
l_,
AM-R F
1
IC202 LA3361 (PLL FM MPX.
Stereo
Demodulator)
PHASE
INPUT L EVEL COMPENSA1OR
!
19kHz
1P
CHARGE CAP
r
@
-
.
ld@EiE'ld ! FSYNCI+RO.
V2C MPX IN
SEPARATION
IC203 LM7001 (Electronic Tuning Direct PLL Frequency Synthesizer)
RETERENCE DIvIDER
FMIN I ~
PWOGRAMABLE DIVIWR
AMIN I
t-- '
SHIFT REGISTER LATCH
I
1
:[
CL
DATA
I
i
PO
I
S_7t
t
CLCCK cWTIW-LER 140~z )
PD2
XIN xOUT
, XTAL DSC (7.2!4+2)
FMIN AMIN , LCIXL OSCILLATIDN SIGNAL IWUT
CD CL DATA
, DATA IWUT
.— —
601 602 BD3
, BANI
DATA DUTPUT
VW I VW2 VSS , PUWER WY [ VCX12 IS BACK-W BATTERY)
PD I PD2
, CHARG W wTPUT
vDD
I
vm2
Vss
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