Block Diagram - Technics SA-EH760 Service Manual

Z120 TUNER UNIT (RAN0005EM)
FM ANT
+B(FM)
FM
RF AMP
MIXER
+B(FM)
FM OSC
+B(FM)
AM
OSC
24 OUT
FM IF
IN
1
18
AOUT
17
AIN
16
PD
11 IFIN
PLL FREQUENCY
SYNTHESIZER
(LC72131M)
UNIVERSAL
COUNTER
Power
Vss
+B(FM) 19
ON
RESET
Power
+B1
supply
(FM:ON) 15
+B2
Jeanne van Woerkom electra
AM ANT
IFT
FM IF
+B(FM)
AMP
BUFFER
AMP
3 22 23 21
REG
ALC AM
AM AM
RF
OSC MIX
AMP
BUFEER
LEVEL
DET
AM/FM
IF
S-
BUFFER
CURVE
FM IF
FM TUNING
DET DRIVE
Vcc
9 8 2
+B2
AM
IFT
REFERENCE
PHASE DET
DIVIDER
CHARGE PUMP
SWALLOW COUNTER
1/2
1/6,1/17 4BIT
12 BIT
PROGRAMMABLE
DIVIDER
DATA SHIFT
REGISTER LATCH
10 12 7 8 9
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AM AM
ANT OSC
COIL COIL
20 19 18 17 16
AGC
PHASE
DET
AM AM
IF DET
COMP
VCO
GND
5
4 6 10
+B2
7.2MHz
1
XIN
20
XOUT
FM IN 14
AM IN 13
2
CE
3
DI
4
CL
5
D0
6
BO1
+B2
Rch
FM / AM I F AMP,
DET / AM OSC,
MIX / FM MPX
(LA1833MN)
DET
FM:ON
15 13 14
DECODER
STEREO PILOT
SWITCH CANCEL
PILOT
FF FF FF
DET
11 12 7
SD
CE1
DATA1
CLK1
DATA IN