WX-7700MDX
40
40
5-17. SCHEMATIC DIAGRAM – MAIN Board (3/4) –
•
See page 52 for Waveforms.
R583
C671
C670
R675
D672
D673
D674
R594
R593
R595
D550
D551
R579
R580
R581
R582
C553
C551
C552
R577
R576
R578
C555
C693
C580
C581
R681
R604
R605
R603
X551
C565
C564
C563
C566
C567
R586
R587
R585
R584
X550
R590
R596
R588
R514
R589
R598
C562
C556
R570
R569
R568
R567
R566
R565
R564
R563
R562
R560
R559
R558
R557
R556
R555
R572
R573
R571
C550
R554
L550
R552
R666
R667
R665
R664
R669
R661
R670
R671
S641
S640
C645
C646
D680
C660
C568
D552
R551
R550
R553
R549
R599
Q675
R676
R679
Q672
R674
R673
D671
TP1
TP2
R575
CN670
Q551
R574
R662
R660
Q674
BP670
X660
D670
D675
IC660
Q676
Q673
R591
C558
C559
C557
R597
R592
R501
S501
220k
1
1
1k
MAZL068D
MAZL068D
MAZL068D
47k
100
0
MA111
MA111
100
10k
10k
0
1000p
0.1
1000p
100
100
100
1000p
47
16V
1000p
1000p
6.8k
100k
100k
100k
3.6864MHz
22p
22p
1000p
0.1
10
16V
220k
100k
100k
220k
32.768KHz
10k
220
100k
100
100k
100k
0.1
470p
100
100
100
100
100
100
100
100
100
330
100
100
100
100
100
2.2k
2.2k
1k
1000p
2.2k
100k
100k
100k
100k
100k
47k
470
10k
0
1000p
1000p
MA111
0.1
0.01
MA111
100
100
1k
100k
100k
2SB1132
2.2k
4.7k
2SB1132
2.2k
47k
MAZL068D
0
30P
UN2111
1k
1k
1M
UN2211
4MHz
HZU6.8B2TR
HZU6.8B2TR
RRX9000-0401R#01
XN4381
UN2211
10k
18p
18p
220p
100k
0
100k
B1
B2
B3
B4
B5
B6
B7
B8
B9
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
E15
E16
E17
E18
E19
E20
R
X
T
X
T
S
I
T
S
O
S
T
P
XRST
A0
STB
TSTB
MREF
LOAD
EJECT
RFOK
PH1
P
H
3
D
_
S
W
P
A
C
K
P
H
2
B
U
_
IN
S
E
L
F_
S
W
T
S
C
K
EE
_
C
L
K
E
E
_D
A
T
A
KEY0
KEY1
VSM
IDA ICK
MOT+
MOT-
I_DET
S
P
_
L
A
T
T
E
L
_
A
T
T
X
M
S
T
L
IM
IT
B
U
SO
N
SYSRST
RESET
M
D
_O
N
C
D
_
O
N
C
D
M
_
O
N
V
O
L
A
T
T
MD_IN
EMPH
BOOT
T
U
N
_O
N
OPEN_SW
CLOSE_SW
B
E
E
P
F
S
W
_
IN
FSW_SFT
FLASH_W
TX
RX
BOOT
KEY0
FL
A
S
H
_
W
BUSON
BU_IN
UNISI
FP_DATA
UNICKO
LINKOFF
A
C
C
_
IN
T
E
S
T
FL
FR
R
E
D
Y
OPEN_SW
CLOSE_SW
EMPH IN
ILL_IN
W_UP
S_ON
D
S
P
_O
N
X
R
S
T
X
L
A
T
X
S
2
4
U
N
IC
K
O
U
N
IS
O
U
N
IS
I
D
S
P
S
I
D
S
P
S
O
D
S
P
C
K
0
DSPCK0
DSPSI
SP_LAT
BUCK_UP_5V
P_ON_LED
KEY0
ILL_ON_LED
BU_IN
SIRCS
SPE_CLK
UNISI
RESET
SYSTEM RESET
BUSON
LINK-OFF
BU_GND
ILL_GND
FP_DATA
UNICKO
SPE_SI
GND
ILL_ON_LCD
ILL_ON_LCD
ILL_ON
RXD
TXD
FLASH_W
BOOT
LEVEL_L
LEVEL_R
(CHASSIS)
FLEXIBLE
BOARD
CONNECT
KEY
NC
NC
SPE_LAT
-1
-2
B+ SWITCH
Q674,675
SIRCS CONTROLLER
KEY ACTIVE
SWITCH
S640
FRONT PANEL
OPEN DETECT
FRONT PANEL
S641
CLOSE DETECT
B+ SWITCH
B+ SWITCH
Q672,673
FM50k/AM9k
FM200k/AM10k
FREQUENCY
SELECT
S501
10
µ
H