Panasonic SA-AK500P, Service Manual

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PLL FREQUENCY SYNTHESIZER
LC72131MDTRM
IC102
E
FM ANT
AM ANT
12 7 10 9 6 8
SD ST
SHIFT REGISTER LATCH
1
2
SWALLOW COUNTER
1/6,1/17,4 BITS
12 BITS PROGRAMMABLE
DIVIDER
REFERENCE
DIVIDER
AM
IFT
1 2 3
4
3 DI
CL
C2B
I/F
5
2
DO
CE
CL
DI
ST/DO
CE
14
13
12
20
X103
1
ST/DO
SD
Z102
4 5 6 7
X102
9 8 10 11 12
+B
S-CURVE
REG
FM
IF
FM
DET
AM
OSC
LEVEL
DET
BUFFER
24 23 22
ALC
BUFFER
6
Z120
RF AMP
5
1
OSC
MIXER
8
FM
Q101
IF AMP
7
CF201 CF202
13 16 15 14
DECODER
STEREO
SWITCH
AM
DET
AM
IF
TUNING
DRIVE
AM/FM
IF
BUFFER
COMP
FF FF
REG
VCO
AM
MIX
AM
RM AMP
AGC
21 20 19 18
PHASE
DET
17
PILOT
DET
FF
PILOT
CANCEL
Z101
AM
ANT
COIL
COIL
OSC
AM
(FM)
(FM)
TUNER
SUPPLY
SWITCH
Q106
19
15
11
18
17
POWER ON
RESET
UNIVERSAL
COUNTER
UNLOCK
DETECTOR
16
PHASE DETECTOR
CHARGE PUMP
+B
+B
+B
+B
+B
RCH
Q1 Q2
Q3 Q4
(FM)
IC101
LA1833NMNTLM
FM/AM IF AMP DET
/AM OSC MIX
/FM MPX