WCS-999
– 9 –
– 10 –
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM – TX Section –
TRANSMITTER
IC51
DC/DC CONVERTER
IC101
05
•
SIGNAL PATH
: TX
DC/DC CONVERTER
ON/OFF SWITCH
Q102
B+
OUT
EXT
L101
D101
ANT1
LEAD
ANTENNA
PD
OUT
OSC1
IN
VCO BLOCK
OUT
XTALE
XTALB
X51
28.528MHz
X52
28.556MHz
X53
28.575MHz
D51
SW51-1
MIC
J1
RF
CHANNEL
SW51
CH-1
RV1
CH-2
RV2
CH-3
RV3
TX OUTPUT
LEVEL
RV51
VCO
VOLTAGE
CT1
TX MODULATION
SENSITIVITY
RV1 – 3
LOW-PASS
FILTER
OSC
Q101
OSC
BUFFER
IC52
FREQUENCY
DOUBLER
Q1
LINE
FILTER
LF101
RF AMP
Q2, 3
MULTIVIBRATOR
(FOR MUTING)
Q109, 110
REGULATOR
Q103
LED DRIVE
Q108
VOLTAGE
DETECT
IC102
DC/DC CONVERTER
CONTROL SWITCH
Q104, 105
SWITCHING
Q106
CRYSTAL
OSCILLATOR
PHASE
DETECTOR
OUTPUT
CIRCUIT
PWM
CONTROL
ERROR
AMP
VREF
CHIP
ENABLE
f/N
MIC AMP
IC1 (1/2)
BUFFER
IC1 (2/2)
OSC4
1
2
3
7
8
9
4
1
SW51-2
D1
CT1
X1
1
2
3
POWER
SW101
BATT
D103
ON
OFF
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION R6)
1PCS. 1.5V
CE
1,084MHz
Summary of Contents for WCS999 - Wireless Camcorder Microphone
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