SCHEMATIC DIAGRAMS
1
A
B
C
D
E
F
G
H
2
3
6
5
4
7
8
9
11
12
13
10
I
S5.5-RX
7
7
UART_PWM
IR_TX
IR_TXAND
u_OSC1_IN
A_SWITCH
CHAN_A_LED_CL
5V_D
CHAN_B_LED_CL
u_OSC1_OUT
LCD_CONTRAST
DISPLAY_RS
DISPLAY_RW
CHAN_B_LED
DISP_ENABLE
CHAN_A_LED
AUDIO_A
RD0
RD1
RD2
RD3
RD4
5V_D
RD5
RD0
RD1
RD6
CHAN_B_LED
RD2
RD7
CHAN_A_LED
RD3
5V_D
PWM
RD4
LCD_LED_A
ENCODE_SWITCH
RD5
ROL_REDLED
ROL_LED
RD6
ROL_GRNLED
DATA_LED
RD7
QUAD_A
QUAD_B
ENCODE_SWITCH
IR_TXBUF
CHAN_A_LED_CL
CHAN_B_LED_CL
ROL_POWGRN
ROL_POWRED
TONE_MUTE
SDA
DISP_ENABLE
SCL
NOISE_MUTE
SYNTH_EN
LCD_LED_A
USB_TX
SYNTH_DAT
USB_RX
SYNTH_CLK
LCD_CONTRAST_PWM
HEAD_CLOCK
MCLR
RB6
UART_PWM
u_OSC1_OUT
5V_D
u_OSC1_IN
UP_DOWN
5V_D
PHANTOM_ENABLE
RB7
USB_RTS
QUAD_B
USB_CTS
QUAD_A
B_SWITCH
LO_CUT
A_SWITCH
WP
QUAD_B
QUAD_A
ENCODE_SWITCH
PHASE_INVERT
AUDIO_B
LO_CUT
MASTER_MUTE
MASTER_MUTE
5V_D
IR_TX
MCLR
DISPLAY_RS
DEV_METER
DISPLAY_RW
VU_METER
PHASE_INVERT
RSSI_A
HI_BOOST
RSSI_B
5V_D
NOISE_MUTE
MCLR
5V_D
RB7
DATA_LED
RB6
B_SWITCH
IR_TXAND
5V_D
IR_TXBUF
USB_RX
USB_RTS
5V_D
5V_A
TONE_MUTE
USB_TX
5V_D
USB_CTS
USBDM
USBDP
USB_VCC
ROL_POWGRN
USB_VCC
USBDM
USBDP
ROL_POWRED
ROL_LED
ROL_REDLED
PWM
ROL_GRNLED
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
12V
10V
10V
10V
2.5VREF
2.5VREF
10V
10V
10V
5V_A
5V_D
5V_D
5V_D
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_A
5V_D
5V_A
10V
5V_D
5V_D
5V_D
10V
IC1
DNP
IN
1
OUT
3
GND
2
IC2
DNP
IN
1
OUT
3
GND
2
C3
22u_E
+
C4
22u_E
+
C13
330p
C14
330p
R5
150
R6
15K
R7
15K
C15
330p
C16
330p
IC6
PIC18F8722
RH2
1
RH3
2
RE1
3
RE0
4
RG0
5
RG1
6
RG2
7
RG3
8
MCLR
9
RG4
10
GND
11
VDD
12
RF7
13
RF6
14
RF5
15
RF4
16
RF3
17
RF2
18
RH7
19
RH6
20
RH5
21
RH4
22
RF1
23
RF0
24
AVDD
25
AVSS
26
RA3
27
RA2
28
RA1
29
RA0
30
GND
31
VDD
32
RA5
33
RA4
34
RC1
35
RC0
36
RC6
37
RC7
38
RJ4
39
RJ5
40
RJ6
41
RJ7
42
RC2
43
RC3
44
RC4
45
RC5
46
RB7
47
VDD
48
OSC1
49
OSC2
50
GND
51
RB6
52
RB5
53
RB4
54
RB3
55
RB2
56
RB1
57
RB0
58
RJ3
59
RJ2
60
VRZ
61
RJ0
62
RD7
63
RD6
64
RD5
65
RD4
66
RD3
67
RD2
68
RD1
69
GND
70
VDD
71
RD0
72
RE7
73
RE6
74
RE5
75
RE4
76
RE3
77
RE2
78
RH0
79
RH1
80
C80
DNP
R63
10K
C81
DNP
R64
10K
R65
10K
D2
BAV99W
1
2
3
R68
10K
JP2
MPLAB_SOCK
1
2
3
4
5
6
R69
10K
R70
100
R73
100K
R74
100K
C82
4u7_ELEC
+
R75
DNP
IC7
FT232RL
TXD
1
DTR
2
RTS
3
VCCIO
4
RXD
5
RI
6
GND
7
NC
8
DSR
9
DCD
10
CTS
11
CBUS4
12
CBUS2
13
CBUS3
14
USBDP
15
USBDM
16
3V3OUT
17
GND
18
RESET
19
VCC
20
GND
21
CBUS1
22
CBUS0
23
NC
24
AGND
25
TEST
26
OSC1
27
OSCI
28
C83
100n
C84
100n
CON1
USB_TYPEB
1
2
3
4
C99
10u_ELEC
+
R86
150K
R87
100K_POT
R88
DNP
IC9A
4580
+
-
3
2
1
8
4
R89
47K
R90
47K
R91
47K
C103
10u_ELEC
+
R93
150K
R94
100K_POT
R95 DNP
R96
47K
IC10A
2904
+
-
3
2
1
C105
220n
R97
100K
C106
220n
C107
220n
IC11A
4066
1
2
13
R100
100K
R101
100K
C108
47u_ELEC
+
C109
22n
R102
100K
IC11B
4066
11
10
12
R103
100
C110
100n
R104
82K
IC12A
4580
+
-
3
2
1
8
4
C111
100n
R105
22K
R109
10K
R111
10K
C114
47p
R112
1K
IC11C
4066
4
3
5
C115
4u7_ELEC
+
R113
47K
R114
47K
IC11D
4066
8
9
6
R115
10K
R117
10K
R118
10K
R120
15K
C116
100n
R121
1K
C117
DNP
R122
12K
R123
12K
C133
1n
C134
1n
C135
1n
R152
3K9
R153
56K
R154
4K7
TR15
KTC4075
R155
47K
R156
1K5
C136
1n
C137
10p
D6
BAV99W
1
2
3
R159
2K2
C138
12p
Y2
32.768KhZ
R161
270K
IC15B
4580
+
-
5
6
7
8
4
R162
22K
C139
10n
R164
2K2
R165
10K
TR16
KTC4075
R166
10K
C140
10n
R167
4K7
C141
2u2_ELEC
+
TR17
KTC4075
C142
2u2_ELEC
+
C143
220p
C144
220p
R168
15K
TR18
KTC4075
C145
1n
TR19
KTC4075
R170
680K
C146
10n
R171
12K
C147
10n
R172
1K
D7
BAV99W
1
2
3
R173
10K
C148
10n
C149
330n
TR20
KTC4075
R174
4K7
R175
4K7
C150
10n
R176
100K
TR21
KTC4075
TR22
KTC4075
R177
100K
R178
100K
C198
22p
Y3
10MHz_SM
OSC1
1
GND
2
OSC2
3
GND
4
C199
3-10pF
R214
10K
TR33
KTC4075
R216
10K
TR34
KTC4075
R217
10K
R218
10
T5
TONETRAP
1
1
2
2
3
3
4
4
5
5
6
6
TR37
KTC4075
TR38
KTC4075
R234
47K
R235
47K
R236
270K
R237 150K
R238
10K
R239
10K_POT
IC21
DNP
IN
1
OUT
3
GND
2
C218
22u_E
+
R241
1K
R242
10K
C2
220u_ELEC
+
CON2
DC-J
1
2
C219
100n
S2
C100
1uF_M
C104
1uF_M
R110
10K
D8
1SR139
IC4A
4066_5V
1
2
13
IC4B
4066_5V
11
10
12
IC4C
4066_5V
4
3
5
IC4D
4066_5V
8
9
6
C224
100n
C225
100n
C226
100n
C227
100n
C228
100n
C229
100n
IC9B
4580
+
-
5
6
7
8
4
C230
100n
C231
100n
IC12B
4580
+
-
5
6
7
8
4
C232
100n
C233
100n
C216
10n
IC15A
4580
+
-
3
2
1
8
4
R157
220K
C235
100n
IC10B
2904
+
-
5
6
7
D3
RED_LEDSM
R240
DNP
JP1
55ribbon
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
IC23
µPC2410AHF
IN
1
OUT
3
GND
2
IC24
KIA5V
IN
1
OUT
3
GND
2
IC25
KIA5V
IN
1
OUT
3
GND
2
IC27A
4011
1
2
3
IC27B
4011
5
6
4
R253
DNP
R254
0r
R255
DNP
IC27D
4011
12
13
11
IC27C
4011
8
9
10
TR12
KTA2014
TR40
KTC4075
TR39
KTA2014
R258
10K
TR42
KTC4075
R85
33K
C98
18p
R92
33K
C102
18p
R263
10K
R264
10K
C101
22u_ELEC
+
R247
1K2
R169
3K9
R215
22K
R116
22K
R163
4K7
C217
680p
R158
2K2
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
TESTPOINT
1
1
1
1
TESTPOINT
1
1
TESTPOINT
1
1
C112
0r
C113
DNP
+
R233
DNP
R108
DNP
R107
DNP
R106
DNP
TESTPOINT
1
1
R244
1K2
R243
10K
R265
0r
R77
DNP
R248
56r_1206
R246
470r_1206
R245
470r_1206
R160
220K
R119
15K
R71
2K2
R72
2K2
C200
10p
R268
100
R99
220K
R98
47K
IC19A
4580
+
-
3
2
1
8
4
USB port
DC inlet
Power switch
10MHz Ref
Note: “ “ represents the ground on the circuit board.
• MAIN PCB (Section B)
