62
WX-7700MDX
– DISPLAY Board –
IC780
RRX9000-0601#1
IC791
TC7WH123FU (TE12R)
16
1
2
3
4
5
6
7
8
15
14
13
11 10
12
9
L IN
L IN GND
L
V STBY
VCC
NC
NC
VPO
NC
GND A
V IN
V AGC
LNS
VCO NC
GND
C
INPUT
SLAGE
320kHz
AGC
320kHz
/500kHz
PULSE
COUNTER
PULSE
FORMER
NOISE
SUPPRESSION
BANDGAP
REFERENCE
A
B
GND
VCC
RX/CX
CX
Q
5
6
1
2
3
4
7
8
CLR
CLR
Cx
Rx/Cx
Q
– POWER Board –
IC400, 401
TL1451ACDB-E20
REFERENCE
VOLTAGE
LATCH
TRIANGLE
OSCILLATOR
VERF.
+2.5V
+2.5V
+
–
U.V.L.O
–
+
+
–
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
PWM
COMPA-
RATOR2
OUTPUT2
OUTPUT1
GND
PWM
COMPA-
RATOR1
VERF
S
R
R
VERF
VERF
ERROR
AMP2
ERROR
AMP1
VREF/2
SHORT
CIRCUIT
PROTECTION
COMPARATOR
VCC
+
REF
OUT
S.C.P
NON-INV-
INPUT2
INV-
INPUT2
FEED
BACK2
DEAD
TIME
CONTROL2
OUT2
VCC
GND
OUT1
RT
NON-INV-
INPUT1
INV-
INPUT1
FEED
BACK1
DEAD
TIME
CONTROL1
CT