Block Diagram -Tuner Section - Sony ZS-2000 Service Manual

6-3. BLOCK DIAGRAM — TUNER SECTION —
ANT2
MW/LW
LOOP
ANTENNA
CL/RECEIVER BOARD TU BOARD
2.5V
L601
3 2
REG
PADIO-CONTROLLED
IC602
CLOCK
1
FERRITE-ROD C/T
TIME CODE
ANTENNA 1 1 TCO
BUF
RECEIVER
2 16
Q602 L3
IC601
MW
CN601
RF
L4
LW
RF
J1-2 3
FM EXT
ANTENNA
J1
ANT1 EXT
FM
TELESCOPIC
ANTENNA
S1
AM
ANTENNA
SELECTOR
• Signal path
: FM
: MW/LW
RY901
AC IN
CN901
POWER BOARD (1/2)
04
MAIN
B
(Page 29)
BOARD(2/2) CN302
C/T TCO
CT1,L3 CT2,L4
MW LW
TRACKING TRACKING
AM
T1 CF4
RF AM
21 2
MIX
CT1 CT2
MW LW
RF
Q8
Q7
AM
Q5 OSC
T1
AM IF
23 24
L5
L5
MW FREQUENCY
AM OSC
TRACKING
CT3
AM OSC
CT3
LW FREQUENCY
TRACKING
Q9
TUNER UNIT
TU1
CF1 CF2
FM AMP
1 7
MIX Q1
FM FM
8
TRACKING OSC
POWER
VT
5 6 CONT TU6V
VCC
Q2
Q4
REG BOARD
5V
12V
POWER
1 1
REG AU12V
3 1 CONT
IC308 Q307,308
3 3
FL5V
6V
4 4
3 REG 1 P12V
IC307
6 6
MO6V
CN310 CNP305
RY-CON
4 4
Q305
T901
1 1 AC CHK
3 3
AU12V
POWER
CONT
Q359,361
FL(-32V)
9 9
Q357,358
FLAC4.3V1
7 7
FLAC4.3V2
6 6
CN902 CNP301 FL 5V
P8V
CNP307
– 25 –
AM FRONT-END
FM/AM IF,DET,MPX
IC1
AM
4 19
DET 13
MPX MUTE
16
14
FM
1 18
DET
IF
BUF
7 6
BUF
12 11 10 8
Q3
CF3
PLL
IC2
11 IF IN 9
ST IND
8 BAND
CE 2
7 MO/ST
3
DI
14 BAND
CL 4
XIN
20 5
DO
X1
75kHz
21 XOUT
12 AM IN
FM IN
13
6
MW
19 LP OUT
VT
CONT
5V
REG
AU5V 3 REG 2 AU12V P8V P12V
Q300
IC305
FL BOARD
FL DRIVE
CN502 IC501
7 2
56 VFDP
6 3
FLUORESCENT
DA 63
INDICATE
5 4 TUBE
CP 62
FL501
CS 61
3 6
RESET 60
64 VDD
CN805
LAMP
1 8 4 4 3 3
DRIVE
Q501
CN503 CN503
LAMP
(1/2) (2/2)
BOARD
MAIN BOARD CONTROL BOARD (1/3)
(1/2)
POWER
CONT
CNP1 CNP306
Q804
6 8
TU LCH
R-CH
A
MAIN
5 12 16
BOARD
(2/2)
CN301 CN801
(Page 29) (1/2) (1/2)
DET OUT 12 2 19 19
4 PLL
XI XO
13 14
B MUTE 11 3
X803
4.332MHz
22 22
AU5V AU5V
20 20
SD CHK 13 1
64
9 9
7 7
2
8 6
7 7
4
9 5 8 8
3
10 4 10 10
1
6 6
5
4 4
6
X801
POWER MO6V
5 9 8MHz
TU6V CONT CLOCK
32
Q309,310 SHIFT
Q801,
31
Q802
VT 2 12
P12V
38
3 3
20
2 2
21
18 18
63
15 15
75
POWER
P12V AU12V
CONT
Q303,304
IR
6 3
RECEIVER 56
1
IC502
4 5
16
3 6
14
5 4
17
2 7
13
7 2
AU5V AU5V
1 8
15
CN501 CN803
– 26 –
ZS-2000
P12V
RDS
IC803
1
DATA
Bi
DIFF.
2
PHASE
DEC.
DEC.
SYSTEM CONTROL
IC801(1/3)
49
ST IND DATA
QUAL 50
CLK 48
CE
CON
65
DATA
CLK
TEX 35
COUNT
X802
MUTE
32.768kHz
34
TX
RADIO
XTAL
EXTAL
R-SHIFT
FL-CON
RY-CON
AC-CHK
P-CON
RMC
DA
CP
CS
FL RST
CD-LAMP