64
U1
RF AMPLIFIER
U102
D/A IC
U101
TX ALC IC
156MHz
6.7Vdc (RX)
5V REG
P401
2.3Vdc
5Vdc
NC
2
-49dBm
*
0Vdc (RX)
5Vdc (TX)
0Vdc (RX)
FREQ
RX RF VOLTAGES IN dBm ARE MEASURED WITH A 1.5 pF CAPACITOR IN SERIES WITH
MIXER
0Vdc (RX)
0Vdc (RX)
NC
-31dBm (RX)
4.8Vdc (RX)
1Vdc
0.4Vdc (RX)
4Vdc
5Vdc (TX)
RF P.A.
0.5Vdc, 136MHz
RF
2.9Vdc (TX)
BUFFER
3.2Vdc (TX)
0.5Vdc
12T
MEASUREMENTS MADE ABOVE CROSSOVER FREQUENCY.
NC
6.5Vdc (TX)
NC
1
2.5Vdc (TX)
4.9Vdc (TX)
NC
0Vdc, 178MHz
2.2Vdc (TX)
NC
-42dBm
5.6Vdc (TX)
7.3Vdc (RX)
0Vdc (TX)
1.0Vdc
178MHz
5T
5T
4T
4.8Vdc
4.0Vdc
V (RX)
NC
1.4Vdc
THESE LEVELS MEASURED BY REMOVING R52.
2.5Vdc
NOTES:
4.7Vdc (NOTE 4)
4.6Vdc (RX/TX)
4.3Vdc (RX) (NOTE 4)
THE 50 OHM ADAPTER OF AN RF MILLIVOLTMETER AND AN RF LEVEL OF -20 dBm INTO J401.
1.
2.
3.
4.
5.
6.
136MHz
NC
0.1Vdc (TX)
2.45Vdc (TX)
MEASUREMENTS MADE BELOW CROSSOVER FREQUENCY.
0Vdc (RX)
5Vdc (TX)
(NOTE 4)
NC
NC
7.
*
= NOT PLACED
5Vdc (RX)
7.4Vdc (RX)
0Vdc (RX)
UNLESS OTHERWISE STATED RX DC VOLTAGES ARE MEASURED WITHOUT RF INTO J401.
ANTENNA
P402
EXT. ANT.
CONNECTOR
TO UNIVERSAL
*
12T
NC
*
9T
6.3Vdc (TX)
0Vdc (RX)
0.047 uH
*
4T
*
-34dBm
-62dBm
0.6Vdc
VOLTAGES IN mV ARE MEASURED WITH A X10 SCOPE PROBE.
0.1uF
C77
C154
330pF
1uH
L121
11pF
C130
330pF
C141
C121
G2
330pF
R199
C118
G1
CR6
0.1uF
1uH
330pF
C107
L105
1
3
2
C16
CR102
C112
GND
J401
5.1pF
5.1pF
C148
3
5
2
1
4
Q108
C7
R112
1MEG
2.7pF
L131
100K
R131
C6
1uH
6.2pF
C90
4.3pF
.01uF
L3
47nH
3
5
4
D
CLK
DAC
C84
T2
1
2
330pF
C98
47K
R117
C161
0.1uF
C86
6.2pF
33pF
R111
5.6K
C80
1uF
C156
1pF
C129
C8
16pF
C87
16pF
20pF
C149
C126
3.3uF
R110
150nH
L8
2.2K
CR11
R114
15K
REV_PWR
4
REV_TRM
6
C152
330pF
13
GND
GND
12
GND
11
GND
10
GND
9
GND
8
7
5
PWR_IN
2
PWR_OUT
FWD_PWR
7
FWD_TRM
3
16
GND
GND
15
GND
14
GND
1.8pF
U104
47nH
C133
L30
L5
1uF
C109
L128
3.3K
R106
C128
1uF
330pF
B+
2.2uH
L32
C153
C123
0.1uF
.033uF
C115
22uF
C14
C164
100pF
R102
4.7K
100K
R139
100
R72
C163
51pF
1
2
5
3
4
SB+
C139
Q107
10uF
C85
CR1
4.7K
R129
L16
330pF
C71
C104
3.3uF
C162
330pF
R115
180K
R116
5V_REG
B+
130K
10pF
C151
ABP
4
AG2 5
GND1
1
GND2
3
GND3
8
IN
2
OUT 7
Vcc
6
R2
56K
R126
51
10K
R4
E101
L14
CR103
1
3
2
CR109
R113
33K
4
Q105
1
2
5
3
L4
39nH
330pF
C108
D1
SW_C
E2
TX_DA
C4
C132
6.8pF
A2
EN_ANT
B4
EN_BIAS A4
GND1
D3
GND2
E4
NC
B5
REF_DA
D4
RESET
B3
C5
RX_DA
R_T
D5
SC1
D2
SC2
C1
SC3 C2
SC4
B1
C3
SEL
SW1
E3
SW2
.01uF
5V
A3
CLK
B2
DATA
3
3
2
1
4
5
C11
T1
10K
R5
20pF
C150
Q101
330pF
C72
.01uF
C82
C103
10uF
C102
L126
330pF
C15
100pF
56nH
L10
50K
RT101
470nH
L12
1.5K
R70
CR12
1
2
3
68nH
L6
B+
L127
C12
.01uF
C13
10
GND4
13
GND5
12
IFP
11
IFN
14
LOIN
8
RF1
7
RF2
U2
2
BBP
4
BDIV
BVDD
1
GND
5
GND1
6
GND2
9
GND3
CR7
330pF
L122
C105
L11
1uH
R127
39
4
8
5
GND
6
GND1
7
GND2
GND3
9
3
V_CONTROL
S101
SWITCH
1
2
3
U105
5
B_PLUS
1
RF_IN
6
RF_OUT
4
SWB_PLUS
C106
10uF
330pF
C140
R1
10
.01uF
C83
0
R101
C146
330pF
120nH
L7
C31
.01uF
C113
330pF
C9
100
R7
LCK
1
2
5
3
4
Q104
A4
INT_CAP_IN
C3
INT_CAP_OUT
E3
PA_BIAS
B5
PA_CNTL
B4
PA_OUT
E4
RECV_5V
A3 RE_DET
D2
RX_1
D5
TEMP_SENSE
D1 TX12
R8
470
C4
5V_TX
A2
ANODE_1
C2
ANODE_2
B1 ANT_SW_BS
D4
BIAS_EN
C1
BIAS_RT
D3
BPOS
B2 CATH_1
C5
DA_REF
B3
GND
E2 ICATH_2
CR108
100nH
L9
C147
C101
0.1uF
.022uF
330pF
C135
CR2
C111
330pF
L101
GND
2
3
IN
1
OUT
1uH
TP10
1
U103
CR9
CR8
L13
CR4
5V_REG
CR3
Q110
L130
1uH
330pF
C4
C99
33pF
C116
1pF
AGC
C88
8.2pF
RX_LO
TX_LO
IF
63B81097C02-O
Sheet 1 of 2
C97
13pF
TO UNIVERSAL
CONNECTOR
EXTERNAL
ANTENNA
NUD7091B, NUD7092B, NUD/PMUD7095B, AND NUD7096B VHF (136-178MHz)
TRANSCEIVER BOARDS’ SCHEMATIC DIAGRAM (Sheet 1 of 2)
Summary of Contents for SYMBOL MT2000 Series
Page 1: ...HT 1000 JT 1000 MT 2000 MTS 2000 and MTX Series Handie Talkie Portable Radios Service Manual ...
Page 2: ......
Page 24: ...2 Notes ...
Page 78: ...56 Notes ...
Page 147: ...Appendix A 9 Appendix Figure 2 Secure Module Location Detail ...
Page 169: ......