Casio ZD-1

BLOCK DIAGRAMS
Tuner
6
FM
AF
AM
AF
FM
IF
AM
IF
FM
RF
AM
OSC
FM
OSC
PRE
VCO
Decode
SW
HYS
F.F
TUN
LED
ST
LED
FM
DET
AM/FM
SW
Level
DET
AM
DED
AGC
AM
MIX
FM
MIX
AM
RF In
FM
RF Out
V
CC
1
FM
OSC
AM
OSC
DET
Out
MPX In
LPF1 LPF2
VCO
GND V
CC
R ch L ch
FM
RF In
GND1
FM MIX AM MIX
AGC
V
CC
2
AM IF
In
FM IF
In
GND2 QUAD
31 2 4
To Amplifier Block
22 21 20 19 18 17 16 15 14 1324 23
D3
Loop Antenna
L2 L5
L4
L3
SW1
BAND SW
AM
FM-
Stereo
FM-MONO
Rod
Antenna
L8
CF1
CF2
L9
FM Signal
AM Signal
L7
1 2 3 4 5 76 8 9 10 11 12