Motorola Astro Dimetra MTP, Instruction Manual

Page: 59 / 76

49
ASTRO XTS Vehicular Adapter
Console Revision Level A Printed Circuit Board Schematic Diagram
PALM_MIC
VSR_MIC
V_MIC
PC5_A5_D5
VOLSET_HHCH
VOL_WIPER
VOL_POT_W
LH_DATA
R132
100K
DAC 6
GND
Batt Rt
2
BATT+
CHRGR V SENSE
U5-35
VRS_OUT
RTS
NC
LED DISABLE
U5-29
HUB INPUT
DTR
HUB or LHBUSY
DAC 5 DAC 2 DAC 4
U5-13
GND AUD_A+
VR16
CHG RED LED
VR35
1uF
0
220
D
KA273
4
1
+5v_fltr
100
R116
BATT_RC
Sw_A+
BATT_Rt
O
LH_DATA
BATT_RC
BATT_Rt
mic_sum
BATT_+
IGN_SW_SENSE
BATT_RT
Sw_A+
BATT+
Sw_A+
PD4_SCK
BATT_RC
LH_Busy
C34
0
6
J5
DCD
CTS
DSR
33V
VR27
R9
10K
DSR
33
L11
0.27uH
0.27uH
L14
C21
0.27uH L12
10K
R43
13
C2POS
C1POS
12
C1NEG
U8
T1OUT
7
T1IN
R23
10K
9
PD3_MOSI
470pF
C13
A+
9.1V
+5V_FLTR
LED_DIM
VOLSET_HHCH
8
+5V_FLTR
VSR_MIC
1uF
C82
C14
D7
BUS1(3:0)
0.27uH
27
VSUP
L13
C62
DIR
R206
12
0.27uH
P/O_DB25
L2
0.27uH
R333
EXT_PTT
C73
2
44
10K
R22
EXT_SPKR
OPTSEL_1
OPTION B+ SENSE
LH BUSY
OPTSEL_2 SIDE_TONES_ATTEN
HUB
SPKR_CONN
U2-11
PAS_A+
BATT_RT
INITIALIZE
LH_DATA
VISOR_MIC
Gnd
EXT_PTT
HHCH VDC
DAC 3 DAC 1
NC
HHCH SUPPLY CONTROL
DAC 0
MICROPHONE SUMMER
IGN_SWITCH
O
MIC_IN
HUB INPUT
MIC_5V
TXD
BUZZER
U5-44
NC
LH BUSY
CHRGR TEST LOAD
U5-43
CHRGR GRN LED
SUPPLY_CONN
Rx/Tx RED LED
U5-27,34
Dac3
NC
NC
CHG GRN LED
Dac6
LH_BUSY/HUB
P/O_DB25
U5-48
SUPPLY_HOLD
10
U5-14
U5-12
UNDERVOLTAGE SENSOR
Rx/Tx GRN LED
U5-15
EMERGENCY INPUT
Dac5
RX_AUDIO
MIC_IN
U5-31
NU
HHCH SUPPLY CONTROL
Dac1
Dac2
Dac4
CHARGER TEST LOAD
PAS_INPUT
PAS_SENSE
MIC_PTT
LH_BUSY
Batt Rc
MIC
EMERG_IN
LH_BUSY
R126
220K
CTS
RADIO_CONN
LH_DATA
RXD
U5-20,21
CHARGER LED RED
11
SIDETONES ATTEN
Dac0
NC
SPKR_COMM
U5-10
U5-50
A+
HEAD_LIGHTS
BATT_RC
LH_DATA
LH Data
C212
1uF
BUS3(0:3)
L6
L5
0.27uH
0.27uH
C95
470pF C65
470pF 470pF
R133
100K
RS232_DSR
RS232_DSD
RS232_RI
RS232_DTR
RS232_CTS
RS232_RXD
RS232_RTS
RS232_TXD
R124
EMERG_IN
L1
0.27uH
2
L3
0.2
0.27uH
470pF
L4
R165
C81
C51
470pF
14
C2NEG
10
R3OUT
17
R3IN
16
R2OUT
22
R2IN
23
R1OUT
5
R1IN
4
8
GND
28
T5IN
21
24
T4OUT
19
T4IN
D15
1
T3OUT
18
T3IN
3
T2OUT
6
T2IN
2
PA0_IC3
2
470pF
C98
16
RS232
11
VPOS
15
VNEG
9
VCC
T5OUT
20
35
0.1uF
C28
1uF
1uF
3
+5V_FLTR
LH_DATA
V_MIC
R180
10K
18
20
22
1uF
C12
3
43
3
5
4
C30
470pF
32
PA2_IC1
7
2
2
C93
1
3
12
1
3
TX_DATA
470pF
C9
31
C10
AUD_A+
R208
100K
470pF 470pF
DC_SWITCH
A+
C8 C7
R166
4
C2
470pF
470pF
50
C204
470pF
40
C1 C3
LH_BUSY
SW_A+
Q5
R16
20K
R79
15V
470pF
VR37 VR36
15V
15V
C202
470pF
VR39
Q6
VSUP
VR38
15V
RX_DATA
RTS
15V
VR40
470pF
4.7uF
C85
R39
VR41 VR42 15V
220
15V
15V
51K
5
J4
VR43
C113
10K
R2
0.1uF
+9V_FLTR
mic_sum
Sw_A+
+9V_FLTR
470pF
C55
220K
R37
10K
20K
C60
+5v_fltr
10K
C112
PALM_MIC
U1B+
U1B+
39
+9V_FLTR
O
PB3_A11
3
2
R4
470pF
Q14
R224
0
10K
C29
R74
470pF
R38
10K
16
42
VSUP
C209
C61
13
12
14
4
11
DC_SWITCH
51K
R110
R28
+9V_FLTR
R117
100
SENSE
2
R25
OUTPUT
1
INPUT
8
4
GND
FEEDBACK
7
C72
33uF
ERROR
5
5V_TAP
6
LP2951C
U1
SHUTDOWN
3
10K
R31
47
R84
VR23
15V
470K
R32
GND
8
EN
6
C
9
B
10
11
A
TX LED RED
TX LED GRN DSR
DCD
RI
BATT RT SENSE
BATT RC SENSE
BATT VDC SENSE
PA/SPEAKER SENSE
n/u
INITIALIZE
EMERG INPUT
Y1
1
Y0
2
Y
15
13
X1
X0
12
X
LED_DIM
14
VEE
7
VCC
C11
1uF
17
37
220pF
C88
U2-47
SPEAKER SENSE
470pF
U2
MC14053B
3
Z1
Z0
5
Z
4
0.1uF
R63
10K
C92
1uF
10K
R48
13
100K
R7
21
PD1_TXD
C69
470pF
Q27
560
0.1uF
VOL_POT_W
1
10K
3
470pF
C17
0
R217
2
R85
10K
R42
Q9
C47
5.6V
VR8
TP1
A+
220
R89
C44
2
3
1
4
11
5.6V
VR12
C104
24pF
48
10K
R81
20K
470pF
100K
L7
0.27uH
R35
10K
24pF
C43
C114
0.1uF
VSUP
10K
R40
VR21
12V
470pF
C25
C200
100K
0
0.1uF
0
R226
100K
W5
220
R57
C76
1uF
R167
10K
0.1uF
R125
3.3K
100K
R144
38
C59
470pF
R207
R12
100K
100K
R141
38 39 41
11
470pF
C52
5
J1
5.6V
VR51
36
470pF
C109
37 35
470pF
BUS2(0:52)
6
J2
R221
10K
J6
Aud_A+
1uF
R119
220
680
R96
Q7
10K
R1
470pF
C106
+5v_fltr
13
470pF
MC68HC711E9
U5
IGN_SW_SENSE
EXT_PTT
12
+5V_FLTR
C105
8
XTAL
18
XIRQ
1
VSS
51
VRL
52
VRH
26
VDD
6
STRB_R_W*
4
STRA_AS
RESET
17
50
PE7_AN7
48
PE6_AN6
46
PE5_AN5
44
PE4_AN4
49
PE3_AN3
47
L8
0.27uH
47
Q24
14
50
R72
R214
44
R41
15V
VR33
1
2
0.1uF
MODB_VSTBY
3
MODA_LIR*
19
IRQ
7
EXTAL
5
CLK_E
PB0_A8
27
PA7_PAI_OC1
28
PA6_OC2_OC1
29
PA5_OC3_OC1
30
PA4_OC4_OC1
31
PA3_IC4_OC5_OC1
33
PA1_IC2
34
PC0_A0_D0
35
PB7_A15
36
PB6_A14
37
PB5_A13
38
PB4_A12
470pF
C27
40
PB2_A10
41
PB1_A9
42
PD0_RXD
16
PC7_A7_D7
C175
470pF
1200pF
C87
15
Q21
PC6_A6_D6
14
1
R137
13
L10
0.27uH
PC4_A4_D4
R33
10K
100K
R15
12
PC3_A3_D3
PC2_A2_D2
R50
51K
11
10
PC1_A1_D1
50
9
PE2_AN2
45
PE1_AN1
43
PE0_AN0
25
PD5_SS*
24
R123
30
23
22
PD2_MISO
220K
R45
20
C20
0.1uF
13
200
R68
R3
47
+5V_FLTR
100K
29
1
4
R52
1K
C78
7.3728MHz
75A01
Y1
11
EXT_PTT
470pF
C107
D10
680
11
R29
470pF
R78
Q15
Q12
47
0
15
J5
ALARM_OUT
Q16
3
1
2
Q25
3
1
2
C58
C91
24pF
43
1uF
28
C173
Sw_A+
1MEG
R131
470pF
+5v_fltr
R49
100
D16
C54
R26
10K
R65
10K
200
R70
33
220K
9
SUPPLY_HOLD
Q1
VSUP
R59
D12
1K
10K
R97
100K
R134
R140
100
R205
220K
R330
+5V_FLTR
24pF
C90
Q3
8
TP4
10K
0.1uF
C207
R336
560
33K
R120
13
24pF
C45
10K
3
1
R204
2
GND
3
GND1
4
OUT
1
IN
3.3K
18
R334
10K
R335
10K
15
100
R58
25
10K
D11
R6
20K
20K
20K
4
U4-4
LM2902
100
R115
10K
R200
20K
20
R18
R339
0
2K
R106
200
R71
R80
20K
1uF
150
R86
470pF
C79
R55
R222
R64
10K
1K
C33
C100
24pF
R77
470pF
C40
0.1uF
R230
0
100
R114
C32
470pF
VR34
C89
AUD_A+
20
15V
470pF
33uF
39K
R73
C203
0
R338
C23
0.1uF
R142
10K
Q13
C22
C77
1uF
Q2
C24
0.1uF
7
VR31 5.6V
R211
C71
12V
VR68
R99
560
1uF
R219
100
29
R36
10K
2K
R136
9
7
J8-5
VSUP
VR11
R98
560
5.6V
10K
R21
VR66
33V
R128
1
4
100K
12V
VR67
R203
220K
10K
R61
470pF
10K
R143
C168
2
INPUT
3
NC1
5
NC2
6
NC3
7
NC4
NC5
8
1
RESET
MC33064
U6
4
GND
VR29
31.1V
Q4
C210
U4-1
LM2902
2
3
1
4
11
1uF
R8
27
C86
220
39
4.7uF
15
Q20
12
6
5
7
4
11
R168
47
LM2902
U3-2
C42
24pF
23
R66
R212
560
470pF
19
C75
1uF
R209
560
C41
470pF
41
Q11
0.27uH
L9
6
470pF
C31
220
R88
D9
20K
R109
R27
20K
C63
470pF
R215
10K
VR64
12V 12V
VR65
R111
33K
Q17
150
R91
C97
470pF
33V
33V
VR22
C96
1200pF
VSUP
R112
10K
6
5
7
4
11
C26
20K
U4-2
LM2902
R92
220
470pF
C50
R14
100K
C19
0.1uF
VR2
5.6V
33uF
C18
6
17
R47
C94
0.1uF
5.6V
VR52
2K
R103
VR19
12V
470pF
C111
16
R169
47
470pF
C174
Q19
VR25
5.6V
470pF
C103
10
1
20K
R75
C80
LM2902
U3-1
R121
8
9
10
8
4
11
33K
1K
U4-3
LM2902
R122
R54
33K
15
1K
R53
C170
4.7uF
100K
R11
VR70
31.1V
24
C38
R118
680
14
470pF
470pF
C39
4
10K
R19
R60
10K
R95
3.3K
VR15
5.6V
680
10K
C110
VOL_WIPER
9
0.1uF
24pF
C101
150
R164
5
VR18
9.1V
3
470pF
C99
100K
R145
21
36
470pF
C171
20K
TP2
0.1uF
R210
560
TP3
Q18
470pF
C66
1
R139
D4
470pF
C46
Q10
14
470pF
C70
2
5.6V
VR3
VR63
12V
VR62
10K
R24
5.6V
470pF
C115
R17
R76
20K
9.1V
VR30
C6
100pF
R138
1
C102
10
D6
470pF
C37
48
12V
VR69
R44
33uF
C208
560
10K
220
R113
R83
R93
470K
10K
R67
1uF
C206
C35
0.1uF
R220
100K
Q23
200
R69
C64
470pF
C205
470pF
C68
1200pF
C5
100pF
C83
1uF
220
R90
0
R223
VSUP
R30
10K
Q22
VR17
5.6V
R62
10K
Q26
GND
2
IN
1
OUT
3
D13
U7
MC78M05
470pF
C167
R216
220K
470pF
C172
2K
D
1
R100
C213
0.1uF
14
R135
C53
470pF
40
C67
470pF
100K
R13
VR20
12V
R20
10K
680
R94
R87
30
31
42
470pF
150
10
D14
R332
10K
R331
10K
1
PALM_MIC
VSR_MIC
V_MIC
PC5_A5_D5
VOLSET_HHCH
VOL_WIPER
VOL_POT_W
LH_DATA
R132
100K
DAC 6
GND
Batt Rt
2
BATT+
CHRGR V SENSE
U5-35
VRS_OUT
RTS
NC
LED DISABLE
U5-29
HUB INPUT
DTR
HUB or LHBUSY
DAC 5 DAC 2 DAC 4
U5-13
GND
AUD_A+
VR16
CHG RED LED
VR35
1uF
0
220
D1
KA2734-MOT12
4
1
3
2
+5v_fltr
100
R116
BATT_RC
Sw_A+
BATT_Rt
O
LH_DATA
BATT_RC
BATT_Rt
mic_sum
BATT_+
IGN_SW_SENSE
BATT_RT
Sw_A+
BATT+
Sw_A+
PD4_SCK
BATT_RC
LH_Busy
C34
0
6
J5
DCD
CTS
DSR
33V
VR27
R9
10K
DSR
33
L11 0.27uH
0.27uH
L14
C21
0.27uH L12
10K
R43
13
C2POS
C1POS
12
C1NEG
U8
T1OUT
7
T1IN
R23 10K
9
PD3_MOSI
470pF
C13
A+
9.1V
+5V_FLTR
LED_DIM
VOLSET_HHCH
8
+5V_FLTR
VSR_MIC
1uF
C82
C14
D7
BUS1(3:0)
0.27uH
27
VSUP
L13
C62
DIR
R206
12
0.27uH
P/O_DB25
L2
0.27uH
R333
EXT_PTT
C73
2
44
10K
R22
EXT_SPKR
OPTSEL_1
OPTION B+ SENSE
LH BUSY
OPTSEL_2 SIDE_TONES_ATTEN
HUB
SPKR_CONN
U2-11
PAS_A+
BATT_RT
INITIALIZE
LH_DATA
VISOR_MIC
Gnd
EXT_PTT
HHCH VDC
DAC 3 DAC 1
NC
HHCH SUPPLY CONTROL
DAC 0
MICROPHONE SUMMER
IGN_SWITCH
O
MIC_IN
HUB INPUT
MIC_5V
TXD
BUZZER
U5-44
NC
LH BUSY
CHRGR TEST LOAD
U5-43
CHRGR GRN LED
SUPPLY_CONN
Rx/Tx RED LED
U5-27,34
Dac3
NC
NC
CHG GRN LED
Dac6
LH_BUSY/HUB
P/O_DB25
U5-48
SUPPLY_HOLD
10
U5-14
U5-12
UNDERVOLTAGE SENSOR
Rx/Tx GRN LED
U5-15
EMERGENCY INPUT
Dac5
RX_AUDIO
MIC_IN
U5-31
NU
HHCH SUPPLY CONTROL
Dac1
Dac2
Dac4
CHARGER TEST LOAD
PAS_INPUT
PAS_SENSE
MIC_PTT
LH_BUSY
Batt Rc
MIC
EMERG_IN
LH_BUSY
R126
220K
CTS
RADIO_CONN
LH_DATA
RXD
U5-20,21
CHARGER LED RED
11
SIDETONES ATTEN
Dac0
NC
SPKR_COMM
U5-10
U5-50
A+
HEAD_LIGHTS
BATT_RC
LH_DATA
LH Data
C212
1uF
BUS3(0:3)
L6
L5
0.27uH
0.27uH
C95
470pF C65
470pF 470pF
R133
100K
RS232_DSR
RS232_DSD
RS232_RI
RS232_DTR
RS232_CTS
RS232_RXD
RS232_RTS
RS232_TXD
R124
EMERG_IN
L1
0.27uH
2
L3
0.2
0.27uH
470pF
L4
R165
C81
C51
470pF
14
C2NEG
10
R3OUT
17
R3IN
16
R2OUT
22
R2IN
23
R1OUT
5
R1IN
4
8
GND
28
T5IN
21
24
T4OUT
19
T4IN
D15
1
T3OUT
18
T3IN
3
T2OUT
6
T2IN
2
PA0_IC3
2
470pF
C98
16
RS232
11
VPOS
15
VNEG
9
VCC
T5OUT
20
35
0.1uF
C28
1uF
1uF
3
+5V_FLTR
LH_DATA
V_MIC
R180
10K
18
20
22
1uF
C12
3
43
3
5
4
C30
470pF
32
PA2_IC1
7
2
2
C93
1
3
12
1
3
TX_DATA
470pF
C9
31
C10
AUD_A+
R208
100K
470pF 470pF
DC_SWITCH
A+
C8 C7
R166
4
C2
470pF
470pF
50
C204
470pF
40
C1 C3
LH_BUSY
SW_A+
Q5
R16
20K
R79
15V
470pF
VR37 VR36
15V
15V
C202
470pF
VR39
Q6
VSUP
VR38
RX_DATA
RTS
15V
470pF
4.7uF
C85
R39
VR41 VR42 15V
220
15V
51K
5
J4
C113
10K
R2
0.1uF
+9V_FLTR
mic_sum
Sw_A+
+9V_FLTR
470pF
C55
220K
R37
10K
20K
C60
+5v_fltr
10K
C112
PALM_MIC
U1B+
U1B+
39
+9V_FLTR
O
PB3_A11
3
2
R4
470pF
Q14
R224
0
10K
C29
R74
470pF
R38
10K
16
42
VSUP
C209
C61
13
12
14
4
11
DC_SWITCH
51K
R110
R28
+9V_FLTR
R117
100
SENSE
2
R25
OUTPUT
1
INPUT
8
4
GND
FEEDBACK
7
C72
33uF
ERROR
5
5V_TAP
6
LP2951C
U1
SHUTDOWN
3
10K
R31
47
R84
VR23
15V
470K
R32
GND
8
EN
6
C
9
B
10
11
A
TX LED RED
TX LED GRN DSR
DCD
RI
BATT RT SENSE
BATT RC SENSE
BATT VDC SENSE
PA/SPEAKER SENSE
n/u
INITIALIZE
EMERG INPUT
Y1
1
Y0
2
Y
15
13
X1
X0
12
X
LED_DIM
14
VEE
7
VCC
C11
1uF
17
37
220pF
C88
U2-47
SPEAKER SENSE
470pF
U2
MC14053B
3
Z1
Z0
5
Z
4
0.1uF
R63
10K
C92
1uF
10K
R48
13
100K
R7
21
PD1_TXD
C69
470pF
Q27
560
0.1uF
VOL_POT_W
1
10K
3
470pF
C17
0
R217
2
R85
10K
R42
Q9
C47
5.6V
VR8
TP1
A+
220
R89
C44
2
3
1
4
11
5.6V
VR12
C104
24pF
48
10K
R81
20K
470pF
100K
L7
0.27uH
R35
10K
24pF
C43
C114
0.1uF
VSUP
10K
R40
VR21
12V
470pF
C25
C200
100K
0
0.1uF
0
R226
100K
W5
220
R57
C76
1uF
R167
10K
0.1uF
R125
3.3K
100K
R144
38
C59
470pF
R207
R12
100K
100K
R141
38 39 41
11
470pF
C52
5
J1
5.6V
VR51
36
470pF
C109
37 35
470pF
BUS2(0:52)
6
J2
R221
10K
J6
Aud_A+
1uF
R119
220
680
R96
Q7
10K
R1
470pF
C106
+5v_fltr
13
470pF
MC68HC711E9
U5
IGN_SW_SENSE
EXT_PTT
12
+5V_FLTR
C105
8
XTAL
18
XIRQ
1
VSS
51
VRL
52
VRH
26
VDD
6
STRB_R_W*
4
STRA_AS
RESET
17
50
PE7_AN7
48
PE6_AN6
46
PE5_AN5
44
PE4_AN4
49
PE3_AN3
47
L8
0.27uH
47
Q24
14
50
R72
R214
44
R41
15V
VR33
1
2
0.1uF
MODB_VSTBY
3
MODA_LIR*
19
IRQ
7
EXTAL
5
CLK_E
PB0_A8
27
PA7_PAI_OC1
28
PA6_OC2_OC1
29
PA5_OC3_OC1
30
PA4_OC4_OC1
31
PA3_IC4_OC5_OC1
33
PA1_IC2
34
PC0_A0_D0
35
PB7_A15
36
PB6_A14
37
PB5_A13
38
PB4_A12
470pF
C27
40
PB2_A10
41
PB1_A9
42
PD0_RXD
16
PC7_A7_D7
C175
470pF
1200pF
C87
15
Q21
PC6_A6_D6
14
1
R137
13
L10
0.27uH
PC4_A4_D4
R33
10K
100K
R15
12
PC3_A3_D3
PC2_A2_D2
R50
51K
11
10
PC1_A1_D1
50
9
PE2_AN2
45
PE1_AN1
43
PE0_AN0
25
PD5_SS*
24
R123
30
23
22
PD2_MISO
220K
R45
20
C20
0.1uF
13
200
R68
R3
47
+5V_FLTR
100K
29
2
3
1
4
R52
1K
C78
7.3728MHz
75A01
Y1
11
EXT_PTT
470pF
C107
D10
680
11
R29
470pF
R78
Q15
Q12
47
0
15
J5
ALARM_OUT
Q16
3
1
2
Q25
3
1
2
C58
C91
24pF
43
1uF
28
C173
Sw_A+
1MEG
R131
470pF
+5v_fltr
R49
100
D16
C54
R26
10K
R65
10K
200
R70
33
220K
9
SUPPLY_HOLD
Q1
VSUP
R59
D12
1K
10K
R97
100K
R134
R140
100
R205
220K
R330
+5V_FLTR
24pF
C90
Q3
8
TP4
10K
0.1uF
C207
R336
560
33K
R120
13
24pF
C45
10K
3
1
R204
2
GND
3
GND1
4
OUT
1
IN
3.3K
18
R334
10K
R335
10K
15
100
R58
25
10K
D11
R6
20K
20K
20K
4
U4-4
LM2902
100
R115
10K
R200
20K
20
R18
R339
0
R337
0
2K
R106
200
R71
R80
20K
1uF
150
R86
470pF
C79
R55
R222
R64
10K
1K
C33
C100
24pF
R77
470pF
C40
0.1uF
R230
0
100
R114
C32
470pF
VR34
C89
AUD_A+
20
15V
470pF
33uF
39K
R73
C203
0
R340
0
R338
C23
0.1uF
R142
10K
Q13
C22
C77
1uF
Q2
C24
0.1uF
7
VR31 5.6V
R211
C71
12V
VR68
R99
560
1uF
R219
100
29
R36
10K
2K
R136
9
7
J8-5
VSUP
VR11
R98
560
5.6V
10K
R21
VR66
33V
R128
1
4
100K
12V
VR67
R203
220K
10K
R61
470pF
10K
R143
C168
2
INPUT
3
NC1
5
NC2
6
NC3
7
NC4
NC5
8
1
RESET
MC33064
U6
4
GND
VR29
31.1V
Q4
C210
U4-1
LM2902
2
3
1
4
11
1uF
R8
27
C86
220
39
4.7uF
15
Q20
12
6
5
7
4
11
R168
47
LM2902
U3-2
C42
24pF
23
R66
R212
560
470pF
470pF
19
C176
C75
1uF
R209
560
C41
470pF
41
Q11
0.27uH
L9
6
470pF
C31
220
R88
D9
20K
R109
R27
20K
C63
470pF
R215
10K
VR64
12V 12V
VR65
R111
33K
Q17
150
R91
C97
470pF
33V
33V
VR22
C96
1200pF
VSUP
R112
10K
6
5
7
4
11
C26
20K
U4-2
LM2902
R92
220
470pF
C50
R14
100K
C19
0.1uF
VR2
5.6V
33uF
C18
6
17
R47
C94
0.1uF
5.6V
VR52
2K
R103
VR19
12V
470pF
C111
16
R169
47
470pF
C174
Q19
VR25
5.6V
470pF
C103
10
1
20K
R75
C80
LM2902
U3-1
R121
8
9
10
8
4
11
33K
1K
U4-3
LM2902
R122
R54
33K
15
1K
R53
C170
4.7uF
100K
R11
VR70
31.1V
24
C38
R118
680
14
470pF
470pF
C39
4
10K
R19
R60
10K
R95
3.3K
VR15
5.6V
680
10K
C110
VOL_WIPER
9
0.1uF
24pF
C101
150
R164
5
VR18
9.1V
3
470pF
C99
100K
R145
21
36
470pF
C171
20K
TP2
0.1uF
R210
560
TP3
Q18
470pF
C66
1
R139
D4
470pF
C46
Q10
14
470pF
C70
2
5.6V
VR3
VR63
12V
VR62
10K
R24
5.6V
470pF
C115
R17
R76
20K
9.1V
VR30
C6
100pF
R138
1
C102
10
D6
470pF
C37
48
12V
VR69
R44
33uF
C208
560
10K
220
R113
R83
R93
470K
10K
R67
1uF
C206
C35
0.1uF
R220
100K
Q23
200
R69
C64
470pF
C205
470pF
C68
1200pF
C5
100pF
C83
1uF
220
R90
0
R223
VSUP
R30
10K
Q22
VR17
5.6V
R62
10K
Q26
GND
2
IN
1
OUT
3
D13
U7
MC78M05
470pF
C167
R216
220K
470pF
C172
2K
D2
KA2734-MOT
1
R100
C213
0.1uF
14
R135
C53
470pF
40
C67
470pF
100K
R13
VR20
12V
R20
10K
680
R94
R87
30
31
42
470pF
150
10
D14
R332
10K
R331
10K
1
PALM_MIC
VSR_MIC
V_MIC
PC5_A5_D5
VOLSET_HHCH
VOL_WIPER
VOL_POT_W
LH_DATA
R132
100K
DAC 6
GND
Batt Rt
2
BATT+
CHRGR V SENSE
U5-35
VRS_OUT
RTS
NC
LED DISABLE
U5-29
HUB INPUT
DTR
HUB or LHBUSY
DAC 5 DAC 2 DAC 4
U5-13
GND
AUD_A+
VR16
CHG RED LED
VR35
1uF
0
220
D1
KA2734-MOT12
4
1
3
2
+5v_fltr
100
R116
BATT_RC
Sw_A+
BATT_Rt
O
LH_DATA
BATT_RC
BATT_Rt
mic_sum
BATT_+
IGN_SW_SENSE
BATT_RT
Sw_A+
BATT+
Sw_A+
PD4_SCK
BATT_RC
LH_Busy
C34
0
6
J5
DCD
CTS
DSR
33V
VR27
R9
10K
DSR
33
L11 0.27uH
0.27uH
L14
C21
0.27uH L12
10K
R43
13
C2POS
C1POS
12
C1NEG
U8
T1OUT
7
T1IN
R23 10K
9
PD3_MOSI
470pF
C13
A+
9.1V
+5V_FLTR
LED_DIM
VOLSET_HHCH
8
+5V_FLTR
VSR_MIC
1uF
C82
C14
D7
BUS1(3:0)
0.27uH
27
VSUP
L13
C62
DIR
R206
12
0.27uH
P/O_DB25
L2
0.27uH
R333
EXT_PTT
C73
2
44
10K
R22
EXT_SPKR
OPTSEL_1
OPTION B+ SENSE
LH BUSY
OPTSEL_2 SIDE_TONES_ATTEN
HUB
SPKR_CONN
U2-11
PAS_A+
BATT_RT
INITIALIZE
LH_DATA
VISOR_MIC
Gnd
EXT_PTT
HHCH VDC
DAC 3 DAC 1
NC
HHCH SUPPLY CONTROL
DAC 0
MICROPHONE SUMMER
IGN_SWITCH
O
MIC_IN
HUB INPUT
MIC_5V
TXD
BUZZER
U5-44
NC
LH BUSY
CHRGR TEST LOAD
U5-43
CHRGR GRN LED
SUPPLY_CONN
Rx/Tx RED LED
U5-27,34
Dac3
NC
NC
CHG GRN LED
Dac6
LH_BUSY/HUB
P/O_DB25
U5-48
SUPPLY_HOLD
10
U5-14
U5-12
UNDERVOLTAGE SENSOR
Rx/Tx GRN LED
U5-15
EMERGENCY INPUT
Dac5
RX_AUDIO
MIC_IN
U5-31
NU
HHCH SUPPLY CONTROL
Dac1
Dac2
Dac4
CHARGER TEST LOAD
PAS_INPUT
PAS_SENSE
MIC_PTT
LH_BUSY
Batt Rc
MIC
EMERG_IN
LH_BUSY
R126
220K
CTS
RADIO_CONN
LH_DATA
RXD
U5-20,21
CHARGER LED RED
11
SIDETONES ATTEN
Dac0
NC
SPKR_COMM
U5-10
U5-50
A+
HEAD_LIGHTS
BATT_RC
LH_DATA
LH Data
C212
1uF
BUS3(0:3)
L6
L5
0.27uH
0.27uH
C95
470pF C65
470pF 470pF
R133
100K
RS232_DSR
RS232_DSD
RS232_RI
RS232_DTR
RS232_CTS
RS232_RXD
RS232_RTS
RS232_TXD
R124
EMERG_IN
L1
0.27uH
2
L3
0.2
0.27uH
470pF
L4
R165
C81
C51
470pF
14
C2NEG
10
R3OUT
17
R3IN
16
R2OUT
22
R2IN
23
R1OUT
5
R1IN
4
8
GND
28
T5IN
21
24
T4OUT
19
T4IN
D15
1
T3OUT
18
T3IN
3
T2OUT
6
T2IN
2
PA0_IC3
2
470pF
C98
16
RS232
11
VPOS
15
VNEG
9
VCC
T5OUT
20
35
0.1uF
C28
1uF
1uF
3
+5V_FLTR
LH_DATA
V_MIC
R180
10K
18
20
22
1uF
C12
3
43
3
5
4
C30
470pF
32
PA2_IC1
7
2
2
C93
1
3
12
1
3
TX_DATA
470pF
C9
31
C10
AUD_A+
R208
100K
470pF 470pF
DC_SWITCH
A+
C8 C7
R166
4
C2
470pF
470pF
50
C204
470pF
40
C1 C3
LH_BUSY
SW_A+
Q5
R16
20K
R79
15V
470pF
VR37 VR36
15V
15V
C202
470pF
VR39
Q6
VSUP
VR38
RX_DATA
RTS
15V
470pF
4.7uF
C85
R39
VR41 VR42 15V
220
15V
51K
5
J4
C113
10K
R2
0.1uF
+9V_FLTR
mic_sum
Sw_A+
+9V_FLTR
470pF
C55
220K
R37
10K
20K
C60
+5v_fltr
10K
C112
PALM_MIC
U1B+
U1B+
39
+9V_FLTR
O
PB3_A11
3
2
R4
470pF
Q14
R224
0
10K
C29
R74
470pF
R38
10K
16
42
VSUP
C209
C61
13
12
14
4
11
DC_SWITCH
51K
R110
R28
+9V_FLTR
R117
100
SENSE
2
R25
OUTPUT
1
INPUT
8
4
GND
FEEDBACK
7
C72
33uF
ERROR
5
5V_TAP
6
LP2951C
U1
SHUTDOWN
3
10K
R31
47
R84
VR23
15V
470K
R32
GND
8
EN
6
C
9
B
10
11
A
TX LED RED
TX LED GRN DSR
DCD
RI
BATT RT SENSE
BATT RC SENSE
BATT VDC SENSE
PA/SPEAKER SENSE
n/u
INITIALIZE
EMERG INPUT
Y1
1
Y0
2
Y
15
13
X1
X0
12
X
LED_DIM
14
VEE
7
VCC
C11
1uF
17
37
220pF
C88
U2-47
SPEAKER SENSE
470pF
U2
MC14053B
3
Z1
Z0
5
Z
4
0.1uF
R63
10K
C92
1uF
10K
R48
13
100K
R7
21
PD1_TXD
C69
470pF
Q27
560
0.1uF
VOL_POT_W
1
10K
3
470pF
C17
0
R217
2
R85
10K
R42
Q9
C47
5.6V
VR8
TP1
A+
220
R89
C44
2
3
1
4
11
5.6V
VR12
C104
24pF
48
10K
R81
20K
470pF
100K
L7
0.27uH
R35
10K
24pF
C43
C114
0.1uF
VSUP
10K
R40
VR21
12V
470pF
C25
C200
100K
0
0.1uF
0
R226
100K
W5
220
R57
C76
1uF
R167
10K
0.1uF
R125
3.3K
100K
R144
38
C59
470pF
R207
R12
100K
100K
R141
38 39 41
11
470pF
C52
5
J1
5.6V
VR51
36
470pF
C109
37 35
470pF
BUS2(0:52)
6
J2
R221
10K
J6
Aud_A+
1uF
R119
220
680
R96
Q7
10K
R1
470pF
C106
+5v_fltr
13
470pF
MC68HC711E9
U5
IGN_SW_SENSE
EXT_PTT
12
+5V_FLTR
C105
8
XTAL
18
XIRQ
1
VSS
51
VRL
52
VRH
26
VDD
6
STRB_R_W*
4
STRA_AS
RESET
17
50
PE7_AN7
48
PE6_AN6
46
PE5_AN5
44
PE4_AN4
49
PE3_AN3
47
L8
0.27uH
47
Q24
14
50
R72
R214
44
R41
15V
VR33
1
2
0.1uF
MODB_VSTBY
3
MODA_LIR*
19
IRQ
7
EXTAL
5
CLK_E
PB0_A8
27
PA7_PAI_OC1
28
PA6_OC2_OC1
29
PA5_OC3_OC1
30
PA4_OC4_OC1
31
PA3_IC4_OC5_OC1
33
PA1_IC2
34
PC0_A0_D0
35
PB7_A15
36
PB6_A14
37
PB5_A13
38
PB4_A12
470pF
C27
40
PB2_A10
41
PB1_A9
42
PD0_RXD
16
PC7_A7_D7
C175
470pF
1200pF
C87
15
Q21
PC6_A6_D6
14
1
R137
13
L10
0.27uH
PC4_A4_D4
R33
10K
100K
R15
12
PC3_A3_D3
PC2_A2_D2
R50
51K
11
10
PC1_A1_D1
50
9
PE2_AN2
45
PE1_AN1
43
PE0_AN0
25
PD5_SS*
24
R123
30
23
22
PD2_MISO
220K
R45
20
C20
0.1uF
13
200
R68
R3
47
+5V_FLTR
100K
29
2
3
1
4
R52
1K
C78
7.3728MHz
75A01
Y1
11
EXT_PTT
470pF
C107
D10
680
11
R29
470pF
R78
Q15
Q12
47
0
15
J5
ALARM_OUT
Q16
3
1
2
Q25
3
1
2
C58
C91
24pF
43
1uF
28
C173
Sw_A+
1MEG
R131
470pF
+5v_fltr
R49
100
D16
C54
R26
10K
R65
10K
200
R70
33
220K
9
SUPPLY_HOLD
Q1
VSUP
R59
D12
1K
10K
R97
100K
R134
R140
100
R205
220K
R330
+5V_FLTR
24pF
C90
Q3
8
TP4
10K
0.1uF
C207
R336
560
33K
R120
13
24pF
C45
10K
3
1
R204
2
GND
3
GND1
4
OUT
1
IN
3.3K
18
R334
10K
R335
10K
15
100
R58
25
10K
D11
R6
20K
20K
20K
4
U4-4
LM2902
100
R115
10K
R200
20K
20
R18
R339
0
R337
0
2K
R106
200
R71
R80
20K
1uF
150
R86
470pF
C79
R55
R222
R64
10K
1K
C33
C100
24pF
R77
470pF
C40
0.1uF
R230
0
100
R114
C32
470pF
VR34
C89
AUD_A+
20
15V
470pF
33uF
39K
R73
C203
0
R340
0
R338
C23
0.1uF
R142
10K
Q13
C22
C77
1uF
Q2
C24
0.1uF
7
VR31 5.6V
R211
C71
12V
VR68
R99
560
1uF
R219
100
29
R36
10K
2K
R136
9
7
J8-5
VSUP
VR11
R98
560
5.6V
10K
R21
VR66
33V
R128
1
4
100K
12V
VR67
R203
220K
10K
R61
470pF
10K
R143
C168
2
INPUT
3
NC1
5
NC2
6
NC3
7
NC4
NC5
8
1
RESET
MC33064
U6
4
GND
VR29
31.1V
Q4
C210
U4-1
LM2902
2
3
1
4
11
1uF
R8
27
C86
220
39
4.7uF
15
Q20
12
6
5
7
4
11
R168
47
LM2902
U3-2
C42
24pF
23
R66
R212
560
470pF
470pF
19
C176
C75
1uF
R209
560
C41
470pF
41
Q11
0.27uH
L9
6
470pF
C31
220
R88
D9
20K
R109
R27
20K
C63
470pF
R215
10K
VR64
12V 12V
VR65
R111
33K
Q17
150
R91
C97
470pF
33V
33V
VR22
C96
1200pF
VSUP
R112
10K
6
5
7
4
11
C26
20K
U4-2
LM2902
R92
220
470pF
C50
R14
100K
C19
0.1uF
VR2
5.6V
33uF
C18
6
17
R47
C94
0.1uF
5.6V
VR52
2K
R103
VR19
12V
470pF
C111
16
R169
47
470pF
C174
Q19
VR25
5.6V
470pF
C103
10
1
20K
R75
C80
LM2902
U3-1
R121
8
9
10
8
4
11
33K
1K
U4-3
LM2902
R122
R54
33K
15
1K
R53
C170
4.7uF
100K
R11
VR70
31.1V
24
C38
R118
680
14
470pF
470pF
C39
4
10K
R19
R60
10K
R95
3.3K
VR15
5.6V
680
10K
C110
VOL_WIPER
9
0.1uF
24pF
C101
150
R164
5
VR18
9.1V
3
470pF
C99
100K
R145
21
36
470pF
C171
20K
TP2
0.1uF
R210
560
TP3
Q18
470pF
C66
1
R139
D4
470pF
C46
Q10
14
470pF
C70
2
5.6V
VR3
VR63
12V
VR62
10K
R24
5.6V
470pF
C115
R17
R76
20K
9.1V
VR30
C6
100pF
R138
1
C102
10
D6
470pF
C37
48
12V
VR69
R44
33uF
C208
560
10K
220
R113
R83
R93
470K
10K
R67
1uF
C206
C35
0.1uF
R220
100K
Q23
200
R69
C64
470pF
C205
470pF
C68
1200pF
C5
100pF
C83
1uF
220
R90
0
R223
VSUP
R30
10K
Q22
VR17
5.6V
R62
10K
Q26
GND
2
IN
1
OUT
3
D13
U7
MC78M05
470pF
C167
R216
220K
470pF
C172
2K
D2
KA2734-MOT1
1
R100
C213
0.1uF
14
R135
C53
470pF
40
C67
470pF
100K
R13
VR20
12V
R20
10K
680
R94
R87
30
31
42
470pF
150
10
D14
R332
10K
R331
10K
1
PALM_MIC
VSR_MIC
V_MIC
PC5_A5_D5
VOLSET_HHCH
VOL_WIPER
VOL_POT_W
LH_DATA
R132
100K
DAC 6
GND
Batt Rt
2
BATT+
CHRGR V SENSE
U5-35
VRS_OUT
RTS
NC
LED DISABLE
U5-29
HUB INPUT
DTR
HUB or LHBUSY
DAC 5 DAC 2 DAC 4
U5-13
GND
AUD_A+
VR16
CHG RED LED
VR35
1uF
0
220
D1
KA2734-MOT12
4
1
3
2
+5v_fltr
100
R116
BATT_RC
Sw_A+
BATT_Rt
O
LH_DATA
BATT_RC
BATT_Rt
mic_sum
BATT_+
IGN_SW_SENSE
BATT_RT
Sw_A+
BATT+
Sw_A+
PD4_SCK
BATT_RC
LH_Busy
C34
0
6
J5
DCD
CTS
DSR
33V
VR27
R9
10K
DSR
33
L11
0.27uH
0.27uH
L14
C21
0.27uH
L12
10K
R43
13
C2POS
C1POS
12
C1NEG
U8
T1OUT
7
T1IN
R23 10K
9
PD3_MOSI
470pF
C13
A+
9.1V
+5V_FLTR
LED_DIM
VOLSET_HHCH
8
+5V_FLTR
VSR_MIC
1uF
C82
C14
D7
BUS1(3:0)
0.27uH
27
VSUP
L13
C62
DIR
R206
12
0.27uH
P/O_DB25
L2
0.27uH
R333
EXT_PTT
C73
2
44
10K
R22
EXT_SPKR
OPTSEL_1
OPTION B+ SENSE
LH BUSY
OPTSEL_2 SIDE_TONES_ATTEN
HUB
SPKR_CONN
U2-11
PAS_A+
BATT_RT
INITIALIZE
LH_DATA
VISOR_MIC
Gnd
EXT_PTT
HHCH VDC
DAC 3 DAC 1
NC
HHCH SUPPLY CONTROL
DAC 0
MICROPHONE SUMMER
IGN_SWITCH
O
MIC_IN
HUB INPUT
MIC_5V
TXD
BUZZER
U5-44
NC
LH BUSY
CHRGR TEST LOAD
U5-43
CHRGR GRN LED
SUPPLY_CONN
Rx/Tx RED LED
U5-27,34
Dac3
NC
NC
CHG GRN LED
Dac6
LH_BUSY/HUB
P/O_DB25
U5-48
SUPPLY_HOLD
10
U5-14
U5-12
UNDERVOLTAGE SENSOR
Rx/Tx GRN LED
U5-15
EMERGENCY INPUT
Dac5
RX_AUDIO
MIC_IN
U5-31
NU
HHCH SUPPLY CONTROL
Dac1
Dac2
Dac4
CHARGER TEST LOAD
PAS_INPUT
PAS_SENSE
MIC_PTT
LH_BUSY
Batt Rc
MIC
EMERG_IN
LH_BUSY
R126
220K
CTS
RADIO_CONN
LH_DATA
RXD
U5-20,21
CHARGER LED RED
11
SIDETONES ATTEN
Dac0
NC
SPKR_COMM
U5-10
U5-50
A+
HEAD_LIGHTS
BATT_RC
LH_DATA
LH Data
C212
1uF
BUS3(0:3)
L6
L5
0.27uH
0.27uH
C95
470pF C65
470pF 470pF
R133
100K
RS232_DSR
RS232_DSD
RS232_RI
RS232_DTR
RS232_CTS
RS232_RXD
RS232_RTS
RS232_TXD
R124
EMERG_IN
L1
0.27uH
2
L3
0.2
0.27uH
470pF
L4
R165
C81
C51
470pF
14
C2NEG
10
R3OUT
17
R3IN
16
R2OUT
22
R2IN
23
R1OUT
5
R1IN
4
8
GND
28
T5IN
21
24
T4OUT
19
T4IN
D15
1
T3OUT
18
T3IN
3
T2OUT
6
T2IN
2
PA0_IC3
2
470pF
C98
16
RS232
11
VPOS
15
VNEG
9
VCC
T5OUT
20
35
0.1uF
C28
1uF
1uF
3
+5V_FLTR
LH_DATA
V_MIC
R180
10K
18
20
22
1uF
C12
3
43
3
5
4
C30
470pF
32
PA2_IC1
7
2
2
C93
1
3
12
1
3
TX_DATA
470pF
C9
31
C10
AUD_A+
R208
100K
470pF 470pF
DC_SWITCH
A+
C8 C7
R166
4
C2
470pF
470pF
50
C204
470pF
40
C1 C3
LH_BUSY
SW_A+
Q5
R16
20K
R79
15V
470pF
VR37 VR36
15V
15V
C202
470pF
VR39
Q6
VSUP
VR38
15V
RX_DATA
RTS
15V
VR40
470pF
4.7uF
C85
R39
VR41 VR42 15V
220
15V
15V
51K
5
J4
VR43
C113
10K
R2
0.1uF
+9V_FLTR
mic_sum
Sw_A+
+9V_FLTR
470pF
C55
220K
R37
10K
20K
C60
+5v_fltr
10K
C112
PALM_MIC
U1B+
U1B+
39
+9V_FLTR
O
PB3_A11
3
2
R4
470pF
Q14
R224
0
10K
C29
R74
470pF
R38
10K
16
42
VSUP
C209
C61
13
12
14
4
11
DC_SWITCH
51K
R110
R28
+9V_FLTR
R117
100
SENSE
2
R25
OUTPUT
1
INPUT
8
4
GND
FEEDBACK
7
C72
33uF
ERROR
5
5V_TAP
6
LP2951C
U1
SHUTDOWN
3
10K
R31
47
R84
VR23
15V
470K
R32
GND
8
EN
6
C
9
B
10
11
A
TX LED RED
TX LED GRN DSR
DCD
RI
BATT RT SENSE
BATT RC SENSE
BATT VDC SENSE
PA/SPEAKER SENSE
n/u
INITIALIZE
EMERG INPUT
Y1
1
Y0
2
Y
15
13
X1
X0
12
X
LED_DIM
14
VEE
7
VCC
C11
1uF
17
37
220pF
C88
U2-47
SPEAKER SENSE
470pF
U2
MC14053B
3
Z1
Z0
5
Z
4
0.1uF
R63
10K
C92
1uF
10K
R48
13
100K
R7
21
PD1_TXD
C69
470pF
Q27
560
0.1uF
VOL_POT_W
1
10K
3
470pF
C17
0
R217
2
R85
10K
R42
Q9
C47
5.6V
VR8
TP1
A+
220
R89
C44
2
3
1
4
11
5.6V
VR12
C104
24pF
48
10K
R81
20K
470pF
100K
L7
0.27uH
R35
10K
24pF
C43
C114
0.1uF
VSUP
10K
R40
VR21
12V
470pF
C25
C200
100K
0
0.1uF
0
R226
100K
W5
220
R57
C76
1uF
R167
10K
0.1uF
R125
3.3K
100K
R144
38
C59
470pF
R207
R12
100K
100K
R141
38 39 41
11
470pF
C52
5
J1
5.6V
VR51
36
470pF
C109
37 35
470pF
BUS2(0:52)
6
J2
R221
10K
J6
Aud_A+
1uF
R119
220
680
R96
Q7
10K
R1
470pF
C106
+5v_fltr
13
470pF
MC68HC711E9
U5
IGN_SW_SENSE
EXT_PTT
12
+5V_FLTR
C105
8
XTAL
18
XIRQ
1
VSS
51
VRL
52
VRH
26
VDD
6
STRB_R_W*
4
STRA_AS
RESET
17
50
PE7_AN7
48
PE6_AN6
46
PE5_AN5
44
PE4_AN4
49
PE3_AN3
47
L8
0.27uH
47
Q24
14
50
R72
R214
44
R41
15V
VR33
1
2
0.1uF
MODB_VSTBY
3
MODA_LIR*
19
IRQ
7
EXTAL
5
CLK_E
PB0_A8
27
PA7_PAI_OC1
28
PA6_OC2_OC1
29
PA5_OC3_OC1
30
PA4_OC4_OC1
31
PA3_IC4_OC5_OC1
33
PA1_IC2
34
PC0_A0_D0
35
PB7_A15
36
PB6_A14
37
PB5_A13
38
PB4_A12
470pF
C27
40
PB2_A10
41
PB1_A9
42
PD0_RXD
16
PC7_A7_D7
C175
470pF
1200pF
C87
15
Q21
PC6_A6_D6
14
1
R137
13
L10
0.27uH
PC4_A4_D4
R33
10K
100K
R15
12
PC3_A3_D3
PC2_A2_D2
R50
51K
11
10
PC1_A1_D1
50
9
PE2_AN2
45
PE1_AN1
43
PE0_AN0
25
PD5_SS*
24
R123
30
23
22
PD2_MISO
220K
R45
20
C20
0.1uF
13
200
R68
R3
47
+5V_FLTR
100K
29
2
3
1
4
R52
1K
C78
7.3728MHz
75A01
Y1
11
EXT_PTT
470pF
C107
D10
680
11
R29
470pF
R78
Q15
Q12
47
0
15
J5
ALARM_OUT
Q16
3
1
2
Q25
3
1
2
C58
C91
24pF
43
1uF
28
C173
Sw_A+
1MEG
R131
470pF
+5v_fltr
R49
100
D16
C54
R26
10K
R65
10K
200
R70
33
220K
9
SUPPLY_HOLD
Q1
VSUP
R59
D12
1K
10K
R97
100K
R134
R140
100
R205
220K
R330
+5V_FLTR
24pF
C90
Q3
8
TP4
10K
0.1uF
C207
R336
560
33K
R120
13
24pF
C45
10K
3
1
R204
2
GND
3
GND1
4
OUT
1
IN
3.3K
18
R334
10K
R335
10K
15
100
R58
25
10K
D11
R6
20K
20K
20K
4
U4-4
LM2902
100
R115
10K
R200
20K
20
R18
R339
0
R337
0
2K
R106
200
R71
R80
20K
1uF
150
R86
470pF
C79
R55
R222
R64
10K
1K
C33
C100
24pF
R77
470pF
C40
0.1uF
R230
0
100
R114
C32
470pF
VR34
C89
AUD_A+
20
15V
470pF
33uF
39K
R73
C203
0
R340
0
R338
C23
0.1uF
R142
10K
Q13
C22
C77
1uF
Q2
C24
0.1uF
7
VR31 5.6V
R211
C71
12V
VR68
R99
560
1uF
R219
100
29
R36
10K
2K
R136
9
7
J8-5
VSUP
VR11
R98
560
5.6V
10K
R21
VR66
33V
R128
1
4
100K
12V
VR67
R203
220K
10K
R61
470pF
10K
R143
C168
2
INPUT
3
NC1
5
NC2
6
NC3
7
NC4
NC5
8
1
RESET
MC33064
U6
4
GND
VR29
31.1V
Q4
C210
U4-1
LM2902
2
3
1
4
11
1uF
R8
27
C86
220
39
4.7uF
15
Q20
12
6
5
7
4
11
R168
47
LM2902
U3-2
C42
24pF
23
R66
R212
560
470pF
470pF
19
C176
C75
1uF
R209
560
C41
470pF
41
Q11
0.27uH
L9
6
470pF
C31
220
R88
D9
20K
R109
R27
20K
C63
470pF
R215
10K
VR64
12V 12V
VR65
R111
33K
Q17
150
R91
C97
470pF
33V
33V
VR22
C96
1200pF
VSUP
R112
10K
6
5
7
4
11
C26
20K
U4-2
LM2902
R92
220
470pF
C50
R14
100K
C19
0.1uF
VR2
5.6V
33uF
C18
6
17
R47
C94
0.1uF
5.6V
VR52
2K
R103
VR19
12V
470pF
C111
16
R169
47
470pF
C174
Q19
VR25
5.6V
470pF
C103
10
1
20K
R75
C80
LM2902
U3-1
R121
8
9
10
8
4
11
33K
1K
U4-3
LM2902
R122
R54
33K
15
1K
R53
C170
4.7uF
100K
R11
VR70
31.1V
24
C38
R118
680
14
470pF
470pF
C39
4
10K
R19
R60
10K
R95
3.3K
VR15
5.6V
680
10K
C110
VOL_WIPER
9
0.1uF
24pF
C101
150
R164
5
VR18
9.1V
3
470pF
C99
100K
R145
21
36
470pF
C171
20K
TP2
0.1uF
R210
560
TP3
Q18
470pF
C66
1
R139
D4
470pF
C46
Q10
14
470pF
C70
2
5.6V
VR3
VR63
12V
VR62
10K
R24
5.6V
470pF
C115
R17
R76
20K
9.1V
VR30
C6
100pF
R138
1
C102
10
D6
470pF
C37
48
12V
VR69
R44
33uF
C208
560
10K
220
R113
R83
R93
470K
10K
R67
1uF
C206
C35
0.1uF
R220
100K
Q23
200
R69
C64
470pF
C205
470pF
C68
1200pF
C5
100pF
C83
1uF
220
R90
0
R223
VSUP
R30
10K
Q22
VR17
5.6V
R62
10K
Q26
GND
2
IN
1
OUT
3
D13
U7
MC78M05
470pF
C167
R216
220K
470pF
C172
2K
D2
KA2734-MOT1
1
R100
C213
0.1uF
14
R135
C53
470pF
40
C67
470pF
100K
R13
VR20
12V
R20
10K
680
R94
R87
30
31
42
470pF
150
10
D14
R332
10K
R331
10K
1
PALM_MIC
VSR_MIC
V_MIC
PC5_A5_D5
VOLSET_HHCH VOL_WIPER
VOL_POT_W
LH_DATA
R132
100K
DAC 6
GND
Batt Rt
2
BATT+
CHRGR V SENSE
U5-35
VRS_OUT
RTS
NC
LED DISABLE
U5-29
HUB INPUT
DTR
HUB or LHBUSY
DAC 5 DAC 2 DAC 4
U5-13
GND
AUD_A+
VR16
CHG RED LED
VR35
1uF
0
220
D1
KA2734-MOT12
4
1
3
2
+5v_fltr
100
R116
BATT_RC
Sw_A+
BATT_Rt
O
LH_DATA
BATT_RC
BATT_Rt
mic_sum
BATT_+
IGN_SW_SENSE
BATT_RT
Sw_A+
BATT+
Sw_A+
PD4_SCK
BATT_RC
LH_Busy
C34
0
6
J5
DCD
CTS
DSR
33V
VR27
R9
10K
DSR
33
L11 0.27uH
0.27uH
L14
C21
0.27uH L12
10K
R43
13
C2POS
C1POS
12
C1NEG
U8
T1OUT
7
T1IN
R23 10K
9
PD3_MOSI
470pF
C13
A+
9.1V
+5V_FLTR
LED_DIM
VOLSET_HHCH
8
+5V_FLTR
VSR_MIC
1uF
C82
C14
D7
BUS1(3:0)
0.27uH
27
VSUP
L13
C62
DIR
R206
12
0.27uH
P/O_DB25
L2
0.27uH
R333
EXT_PTT
C73
2
44
10K
R22
EXT_SPKR
OPTSEL_1
OPTION B+ SENSE
LH BUSY
OPTSEL_2 SIDE_TONES_ATTEN
HUB
SPKR_CONN
U2-11
PAS_A+
BATT_RT
INITIALIZE
LH_DATA
VISOR_MIC
Gnd
EXT_PTT
HHCH VDC
DAC 3 DAC 1
NC
HHCH SUPPLY CONTROL
DAC 0
MICROPHONE SUMMER
IGN_SWITCH
O
MIC_IN
HUB INPUT
MIC_5V
TXD
BUZZER
U5-44
NC
LH BUSY
CHRGR TEST LOAD
U5-43
CHRGR GRN LED
SUPPLY_CONN
Rx/Tx RED LED
U5-27,34
Dac3
NC
NC
CHG GRN LED
Dac6
LH_BUSY/HUB
P/O_DB25
U5-48
SUPPLY_HOLD
10
U5-14
U5-12
UNDERVOLTAGE SENSOR
Rx/Tx GRN LED
U5-15
EMERGENCY INPUT
Dac5
RX_AUDIO
MIC_IN
U5-31
NU
HHCH SUPPLY CONTROL
Dac1
Dac2
Dac4
CHARGER TEST LOAD
PAS_INPUT
PAS_SENSE
MIC_PTT
LH_BUSY
Batt Rc
MIC
EMERG_IN
LH_BUSY
R126
220K
CTS
RADIO_CONN
LH_DATA
RXD
U5-20,21
CHARGER LED RED
11
SIDETONES ATTEN
Dac0
NC
SPKR_COMM
U5-10
U5-50
A+
HEAD_LIGHTS
BATT_RC
LH_DATA
LH Data
C212
1uF
BUS3(0:3)
L6
L5
0.27uH
0.27uH
C95
470pF C65
470pF 470pF
R133
100K
RS232_DSR
RS232_DSD
RS232_RI
RS232_DTR
RS232_CTS
RS232_RXD
RS232_RTS
RS232_TXD
R124
EMERG_IN
L1
0.27uH
2
L3
0.2
0.27uH
470pF
L4
R165
C81
C51
470pF
14
C2NEG
10
R3OUT
17
R3IN
16
R2OUT
22
R2IN
23
R1OUT
5
R1IN
4
8
GND
28
T5IN
21
24
T4OUT
19
T4IN
D15
1
T3OUT
18
T3IN
3
T2OUT
6
T2IN
2
PA0_IC3
2
470pF
C98
16
RS232
11
VPOS
15
VNEG
9
VCC
T5OUT
20
35
0.1uF
C28
1uF
1uF
3
+5V_FLTR
LH_DATA
V_MIC
R180
10K
18
20
22
1uF
C12
3
43
3
5
4
C30
470pF
32
PA2_IC1
7
2
2
C93
1
3
12
1
3
TX_DATA
470pF
C9
31
C10
AUD_A+
R208
100K
470pF 470pF
DC_SWITCH
A+
C8 C7
R166
4
C2
470pF
470pF
50
C204
470pF
40
C1 C3
LH_BUSY
SW_A+
Q5
R16
20K
R79
15V
470pF
VR37 VR36
15V
15V
C202
470pF
VR39
Q6
VSUP
VR38
15V
RX_DATA
RTS
15V
VR40
470pF
4.7uF
C85
R39
VR41 VR42 15V
220
15V
15V
51K
5
J4
VR43
C113
10K
R2
0.1uF
+9V_FLTR
mic_sum
Sw_A+
+9V_FLTR
470pF
C55
220K
R37
10K
20K
C60
+5v_fltr
10K
C112
PALM_MIC
U1B+
U1B+
39
+9V_FLTR
O
PB3_A11
3
2
R4
470pF
Q14
R224
0
10K
C29
R74
470pF
R38
10K
16
42
VSUP
C209
C61
13
12
14
4
11
DC_SWITCH
51K
R110
R28
+9V_FLTR
R117
100
SENSE
2
R25
OUTPUT
1
INPUT
8
4
GND
FEEDBACK
7
C72
33uF
ERROR
5
5V_TAP
6
LP2951C
U1
SHUTDOWN
3
10K
R31
47
R84
VR23
15V
470K
R32
GND
8
EN
6
C
9
B
10
11
A
TX LED RED
TX LED GRN DSR
DCD
RI
BATT RT SENSE
BATT RC SENSE
BATT VDC SENSE
PA/SPEAKER SENSE
n/u
INITIALIZE
EMERG INPUT
Y1
1
Y0
2
Y
15
13
X1
X0
12
X
LED_DIM
14
VEE
7
VCC
C11
1uF
17
37
220pF
C88
U2-47
SPEAKER SENSE
470pF
U2
MC14053B
3
Z1
Z0
5
Z
4
0.1uF
R63
10K
C92
1uF
10K
R48
13
100K
R7
21
PD1_TXD
C69
470pF
Q27
560
0.1uF
VOL_POT_W
1
10K
3
470pF
C17
0
R217
2
R85
10K
R42
Q9
C47
5.6V
VR8
TP1
A+
220
R89
C44
2
3
1
4
11
5.6V
VR12
C104
24pF
48
10K
R81
20K
470pF
100K
L7
0.27uH
R35
10K
24pF
C43
C114
0.1uF
VSUP
10K
R40
VR21
12V
470pF
C25
C200
100K
0
0.1uF
0
R226
100K
W5
220
R57
C76
1uF
R167
10K
0.1uF
R125
3.3K
100K
R144
38
C59
470pF
R207
R12
100K
100K
R141
38 39 41
11
470pF
C52
5
J1
5.6V
VR51
36
470pF
C109
37 35
470pF
BUS2(0:52)
6
J2
R221
10K
J6
Aud_A+
1uF
R119
220
680
R96
Q7
10K
R1
470pF
C106
+5v_fltr
13
470pF
MC68HC711E9
U5
IGN_SW_SENSE
EXT_PTT
12
+5V_FLTR
C105
8
XTAL
18
XIRQ
1
VSS
51
VRL
52
VRH
26
VDD
6
STRB_R_W*
4
STRA_AS
RESET
17
50
PE7_AN7
48
PE6_AN6
46
PE5_AN5
44
PE4_AN4
49
PE3_AN3
47
L8
0.27uH
47
Q24
14
50
R72
R214
44
R41
15V
VR33
1
2
0.1uF
MODB_VSTBY
3
MODA_LIR*
19
IRQ
7
EXTAL
5
CLK_E
PB0_A8
27
PA7_PAI_OC1
28
PA6_OC2_OC1
29
PA5_OC3_OC1
30
PA4_OC4_OC1
31
PA3_IC4_OC5_OC1
33
PA1_IC2
34
PC0_A0_D0
35
PB7_A15
36
PB6_A14
37
PB5_A13
38
PB4_A12
470pF
C27
40
PB2_A10
41
PB1_A9
42
PD0_RXD
16
PC7_A7_D7
C175
470pF
1200pF
C87
15
Q21
PC6_A6_D6
14
1
R137
13
L10
0.27uH
PC4_A4_D4
R33
10K
100K
R15
12
PC3_A3_D3
PC2_A2_D2
R50
51K
11
10
PC1_A1_D1
50
9
PE2_AN2
45
PE1_AN1
43
PE0_AN0
25
PD5_SS*
24
R123
30
23
22
PD2_MISO
220K
R45
20
C20
0.1uF
13
200
R68
R3
47
+5V_FLTR
100K
29
2
3
1
4
R52
1K
C78
7.3728MHz
75A01
Y1
11
EXT_PTT
470pF
C107
D10
680
11
R29
470pF
R78
Q15
Q12
47
0
15
J5
ALARM_OUT
Q16
3
1
2
Q25
3
1
2
C58
C91
24pF
43
1uF
28
C173
Sw_A+
1MEG
R131
470pF
+5v_fltr
R49
100
D16
C54
R26
10K
R65
10K
200
R70
33
220K
9
SUPPLY_HOLD
Q1
VSUP
R59
D12
1K
10K
R97
100K
R134
R140
100
R205
220K
R330
+5V_FLTR
24pF
C90
Q3
8
TP4
10K
0.1uF
C207
R336
560
33K
R120
13
24pF
C45
10K
3
1
R204
2
GND
3
GND1
4
OUT
1
IN
3.3K
18
R334
10K
R335
10K
15
100
R58
25
10K
D11
R6
20K
20K
20K
4
U4-4
LM2902
100
R115
10K
R200
20K
20
R18
R339
0
R337
0
2K
R106
200
R71
R80
20K
1uF
150
R86
470pF
C79
R55
R222
R64
10K
1K
C33
C100
24pF
R77
470pF
C40
0.1uF
R230
0
100
R114
C32
470pF
VR34
C89
AUD_A+
20
15V
470pF
33uF
39K
R73
C203
0
R340
0
R338
C23
0.1uF
R142
10K
Q13
C22
C77
1uF
Q2
C24
0.1uF
7
VR31 5.6V
R211
C71
12V
VR68
R99
560
1uF
R219
100
29
R36
10K
2K
R136
9
7
J8-5
VSUP
VR11
R98
560
5.6V
10K
R21
VR66
33V
R128
1
4
100K
12V
VR67
R203
220K
10K
R61
470pF
10K
R143
C168
2
INPUT
3
NC1
5
NC2
6
NC3
7
NC4
NC5
8
1
RESET
MC33064
U6
4
GND
VR29
31.1V
Q4
C210
U4-1
LM2902
2
3
1
4
11
1uF
R8
27
C86
220
39
4.7uF
15
Q20
12
6
5
7
4
11
R168
47
LM2902
U3-2
C42
24pF
23
R66
R212
560
470pF
470pF
19
C176
C75
1uF
R209
560
C41
470pF
41
Q11
0.27uH
L9
6
470pF
C31
220
R88
D9
20K
R109
R27
20K
C63
470pF
R215
10K
VR64
12V 12V
VR65
R111
33K
Q17
150
R91
C97
470pF
33V
33V
VR22
C96
1200pF
VSUP
R112
10K
6
5
7
4
11
C26
20K
U4-2
LM2902
R92
220
470pF
C50
R14
100K
C19
0.1uF
VR2
5.6V
33uF
C18
6
17
R47
C94
0.1uF
5.6V
VR52
2K
R103
VR19
12V
470pF
C111
16
R169
47
470pF
C174
Q19
VR25
5.6V
470pF
C103
10
1
20K
R75
C80
LM2902
U3-1
R121
8
9
10
8
4
11
33K
1K
U4-3
LM2902
R122
R54
33K
15
1K
R53
C170
4.7uF
100K
R11
VR70
31.1V
24
C38
R118
680
14
470pF
470pF
C39
4
10K
R19
R60
10K
R95
3.3K
VR15
5.6V
680
10K
C110
VOL_WIPER
9
0.1uF
24pF
C101
150
R164
5
VR18
9.1V
3
470pF
C99
100K
R145
21
36
470pF
C171
20K
TP2
0.1uF
R210
560
TP3
Q18
470pF
C66
1
R139
D4
470pF
C46
Q10
14
470pF
C70
2
5.6V
VR3
VR63
12V
VR62
10K
R24
5.6V
470pF
C115
R17
R76
20K
9.1V
VR30
C6
100pF
R138
1
C102
10
D6
470pF
C37
48
12V
VR69
R44
33uF
C208
560
10K
220
R113
R83
R93
470K
10K
R67
1uF
C206
C35
0.1uF
R220
100K
Q23
200
R69
C64
470pF
C205
470pF
C68
1200pF
C5
100pF
C83
1uF
220
R90
0
R223
VSUP
R30
10K
Q22
VR17
5.6V
R62
10K
Q26
GND
2
IN
1
OUT
3
D13
U7
MC78M05
470pF
C167
R216
220K
470pF
C172
2K
D2
KA2734-MOT
1
R100
C213
0.1uF
14
R135
C53
470pF
40
C67
470pF
100K
R13
VR20
12V
R20
10K
680
R94
R87
30
31
42
470pF
150
10
D14
R332
10K
R331
10K
1