ZS-X1
17
17
6-2.
BLOCK DIAGRAM – TUNER Section –
2
24
4
7
20
21
FM
RF AMP
FM
MIX
FM
OSC
FM IF
AMP
IF
BUFFER
AF
BUFFER
AF
AMP
MPX
MUTE
STEREO/
MONO,
FM/AM
AM IF
AMP
FM
DET
AM
DET
6
FM
RF-IN
22
AM
RF AMP
Q14
AM
MIX
AM
RF-IN
MIX-OUT
OSC
-OUT
CF2
FM/AM PLL
(US, CND, SP, KR, AUS) (AEP, UK, IT, EE)
CF4
FM
RF-OUT
10
QUAD
FM
IF-IN
12
15
11
L-OUT
MPX
-IN
R-OUT
13
AM
IF-IN
LPF1/BAND
AM OSC
FM OSC
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1
(US, CND, SP, KR, AUS) (AEP, UK, IT, EE)
L2
FM VCO VOLTAGE
CT1, L1
FM TRACKING
CT3, L3
AM TRACKING
T1
AM IFT
LOW-PASS
FILTER
LOW-PASS
FILTER
• SIGNAL PATH
: FM
: AM (MW/LW)
X1
75kHz
CT3
L1
FM RF
XOUT
XIN
AM IN
IF IN
ST
-IND
LP-OUT
LP-IN
FM IN
20
19
11
12
18
MW/L
W
6
CT1
D1
L4
AM (MW/LW)
OSC
L2
FM OSC
LEVEL
DET
ST
IND
14
LPF2/MO-ST
AM
OSC
BUFFER
BUFFER
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BAND
DI
CL
CE
DO
DET
-OUT
ANT1
FM TELESCOPIC
ANTENNA
PD
IF-OUT
ST
-IND
2
3
1
4
10
9
BAND
7
MO/ST
13
8
17
16
17
18
16
19
CT5
D2
(AEP, UK, IT, EE)
(US, CND, SP, KR, AUS)
D3
(1/2)
D3
(2/2)
AM HIGH
CUT
SWITCH
Q12
T1
AM IF
Q42
Q41
CD/RADIO
+6.2V
Q41, 42
MW SWITCH
L3-1
MW
L3-2
LW
L3
MW/LW
FERRITE-ROD
ANTENNA
MW
TRACKING
CT3, L3-1
LW
TRACKING
CT5, L3-2
LW
SWITCH
Q44
LW SWITCH
Q43
• R-ch is omitted due to same as L-ch.
R DATA
R CLOCK
R CE
R COUNT
R-CH
B MUTE
CONSTANT
CURRENT
Q61
T2
FM IFT
T2
FM IF
L3
AM FERRITE-ROD
ANTENNA
(AEP, UK, IT, EE)
(AEP, UK, IT, EE)
(US, CND, SP, KR, AUS)
R DATA, R CLOCK, R CE,
R COUNT, B MUTE
(AEP, UK, IT, EE)
(US, CND, SP, KR, AUS)
(AEP, UK, IT, EE)
(US, CND, SP, KR, AUS)
L4
AM VCO VOLTAGE
L4
LW VCO VOLTAGE
• Abbrivation
AUS : Australian model
CND : Canadian model
EE : East European model
IT : Italian model
KR : Korean model
SP : Singapore model
D301
SW +9V
MUTING
SWITCH
Q806
