73
ZIF
U3
SYNTHESIZER
U204
U201
VCO BUFFER
16.8 MHz
REF OSC
U203
DISC
NC
SW_B+
*
3.4Vdc
REF_OSC_SEL
DAC_SEL
0V OR 5Vdc UNLOCK
3.8Vdc
-23dBm
1200mVpp
1.2Vdc
1.7Vdc
2.5Vdc
1.9Vdc (TX)
-7.6 Vdc(Rx) (Note 6)
Else 0 Vdc (Note 7)
-7.8 Vdc(Tx) (Note 6)
NC
73.35MHz
2.5Vdc
2.3Vdc
CLOCK
SQ_OUT
NC
LOCK=5V
-18dBm
4.5Vdc
-8dBm
2.2Vdc (RX)
0.1Vdc (TX)
1.4Vdc
2.5Vdc
2.3Vdc
DEVIATION
0.1Vdc (RX)
5Vdc
7.5Vdc
NC
NC
2.1/2.4_MHZ
NC
*
NC
NC
NC
1.6Vdc
280mVpp/kHz
4.6Vdc
2.25Vdc (TX)
DURING
PROGRAMING
NC
NC
4.6Vdc (NOTE 5)
(shield in place)
using 10 pF
GND
GND
1.6Vdc
PINS 31-38 = 2.5Vdc
2.0Vdc
-36dBm (RX)
(NOTE 5)
1.4Vdc
-44dBm (NOTE 5)
2.5Vdc
2.0Vdc typical
2.8Vdc
-53dBm (NOTE 5)
3.4Vdc
2.9Vdc (RX) (NOTE 3)
2Vdc(RX)
16.8MHz
4Vpp
2.8Vdc
*
VCO_MOD
SYN_SEL
4.3Vdc (TX)
DATA
*
1 Vpp
IS_B+
1.0A
RAW_B+
GND
(NOTE5)
*
*
NC
9 nH
LOCK_DET
RSSI
9.2(TX)Vdc @ 520MHz
7.7(RX)Vdc @ 520MHz
7.4(TX)Vdc @ 512MHz
UNLOCK=0V
-9dBm
5V REG
4.9(RX)Vdc @ 450MHz
5V
NC
NC
NC
GND
*
3Vdc (TX)
0Vdc (RX)
NC
-12dBm(TX)
NC
1.7Vdc (RX)
1.6Vdc (TX)
6.1(RX)Vdc @ 512MHz
2
K2
3
K3
NC
*
2.6Vdc
*
0V
5V
5.2(TX)Vdc @ 450MHz
TP5 VCTRL
5Vpp (N0te 6)
0Vdc (Rx, Tx) (Note 7)
GND
GND
Else 4.4 Vdc (Note 6)
1.6 Vdc
-23 dBm
TO P301
IF_SEL
RAW B+
1kHz
*
13Vdc
0.7Vdc (RX)
3.3Vdc
CR205
A1
6 5
A2
4
A3
1
K1
C214
C238
100pF
3pF
CR209
C282
41 3
GND_PREAMP
14
LO_IN
4
PEAMP_5V
5
PEAMP_OUT
2
PREAMPIN
24
RAMPCAP
10
RSSI_FLT
9
RSSI_OUT
29
SQ
25
VIBYPASS
18
Vc
12
Vpp
0.1uF
C2POS
33
C3NEG
34
C3POS
31
C4NEG
32
C4POS
21
CE
20
CLK
19
DATA
28
DISC
7
DM_BYP
6
DM_IN
1
GND1
8
GND2
15
GND3
16
GND4
GND5
26
GND6
J301-9
27
+2.5V1
30
+2.5V2
11
+5V1
13
+5V2
17
+5V3
23
+5V4
22
16.8MHz
2.5V
40
AGC
37
C1NEG
38
C1POS
35
C2NEG
36
D
S
CLK
Q201
100pF
C227
CR207
CR208
C230
L216
15nH
L20
470nH
C294
100pF
L221
D
L222
390nH
2.2uH
270nH
0.22uF
39
L202
6
A2
5
A3
4
K1
1
K2
2
K3
3
C46
CR203
CR204
A1
15K
R217
R43
0.1uF
C275
R214
43K
C246
.022uF
0.1uF
C60
J301-5
L211
J301-4
J301-7
.01uF
C267
L207
150nH
J301-6
1pF
18nH
C292
3300pF
L219
C216
C96
.01uF
R1=47K
Q5
200K
R18
C253
10uF
3300pF
C309
.022uF
C287
6
WARP
16
XTAL1
14
XTAL2
15
100pF
C289
41
MODIN
5
MODOUT
30
PREIN
21
PVREF
24
R_GND1
43
R_GND2
44
SBASE
18
SIN
20
SOUT
19
TST1
26
TST2
27
VCP
36
VMULT1
9
VMULT2
8
VMULT3
7
VMULT4
29
CPBIAS2
28
DATA
2
11
DC5V1
DC5V2
23
25
DC5V3
DC5V4
42
EN
31
EN_CE
4
FREFOUT
10
GND1
1
GND2
13
GND3
22
GND4
33
IADAPT
34
IOUT
32
LOCK
ADAPTTSW
35
AD_BYPASS
12
AUX1
37
AUX2
38
AUX3
39
AUX4
40
CAP
17
CLK
3
CPBIAS1
C260
.047uF
33nH
C202
C201
1pF
L224
C315
15
100pF
C279
100pF
C274
J301-17
C222
4.3pF
R205
C210
15K
10K
.022uF
10K
R204
R206
4.7uF
C254
3.3uF
C125
0.1uF
C255
3.3pF
C63
0.1uF
C219
0.33uF
C49
C57
43pF
.01uF
C239
C257
C243
6.8pF
C226
6.8pF
C203
1.5pF
9.1pF
C205
1pF
C225
2.7K
R223
47K
R33
100K
R218
0.1uF
C51
C308
100pF
16.8MHz
2.1MHz
14.5nH
L210
C50
.01uF
0.47uF
C247
J301-8
C314
J301-16
J301-18
C217
100pF
C303
.022uF
J301-1
J301-20
C304
100pF
R50
1.5K
.01uF
100pF
C307
L22
C256
470nH
J301-3
4.5pF
C223
IN
1
43K
R215
FL1
FREQ=73.35MHz
2
GND
4
GND1
3
OUT
C244
.022uF
10uF
C231
C240
4.5pF
C43
0.22uF
1.8pF
C42
0.22uF
680
C39
R44
15K
C284
0.22uF
R49
C310
100pF
C47
0.1uF
4.7uF
C258
5V_REG
SB+
J301-10
J301-15
J301-13
J301-11
J301-14
390nH
L215
GND
13
GND1
1
NC
8
PS
16
RBY
15
RX_OUT
2
S1
7
S2
14
SV1
6
TRB
5
TX_OUT
4
VC
10
VCC
3
C280
0.1uF
B2
11
C
9
E2
12
R210
10K
R53
330
R220
2K
J301-12
R32
2.7K
C270
L223
390nH
1000pF
NC4
4
NC5
5
NC6
6
NC7
NC8
16
NC9
17
S1
25
SCK
22
SO
21
SS
24
VD
D
13
VDD
2
14
VOPT
12
VREG
11
DE
9
DET
8
FOUT
10
GND
26
NC1
1
NC10
18
NC11
19
NC1
2
20
NC1
3
27
NC14
28
NC15
29
NC16
30
NC17
31
NC18
32
NC2
2
NC3
3
R48
LCK
CLK
CE
23
CEX
T
7
C35
R209
390nH
L208
470
C313
R17
20K
D
R34
47K
C271
4.7uF
C204
100pF
LCK
C208
100pF
27nH
L220
C41
0.1uF
C95
8.2pF
C58
2.2pF
1000pF
C245
4.3pF
C236
100pF
C306
C311
3300pF
.01uF
C288
Q4
1
3
2
F1
32V
1A
100pF
C211
CR201
5.1pF
C235
R45
51K
C221
.01uF
4700pF
R219
0
C65
5V_REG
560nH
L23
.01uF
L25
2.2uH
C59
68K
R207
C38
C56
43pF
C36
10pF
R211
5.1pF
470
R42
R41
22
470
R40
DAC
L36
150nH
10
R203
D
2.1MHz
C233
C228
100pF
3.3pF
C237
100pF
TP5
1
C250
1000pF
750
470
R212
R211
R213
SYN
D
150
C54
39pF
L24
180nH
L209
390nH
L301
CR202
390nH
390nH
C305
L302
47K
100pF
22
SYN
R46
R47
8
INPUT
5
1
7
OUTPUT
2
SENSE
3
SHUTDOWN
Q202
U202
5V_TAP
6
ERROR
FEEDBACK
4
GND
.01uF
BATT+
1
BATT-
2
NC
3
0.1uF
C209
R35
C64
18nH
L205
47K
L201
18nH
390nH
L218
L213
390nH
L204
390nH
L212
2200pF
C206
18nH
C40
100pF
J301-2
J301-19
2.4K
R208
C53
R16
2.7K
1.2K
R51
0.15uF
430pF
0.22uF
C48
0.22uF
C44
C61
0.1uF
C45
1.2K
R221
C220
6.2pF
5V_REG
33pF
B+
CLK
.018uF
C55
1
2
3
C52
C266
CR12
CR206
.01uF
100pF
C290
Q1
1
3
2
CR5
RX_LO
IF
AGC
TX_LO
63B81097C04-O
Sheet 2 of 2
NUE7267B, NUE7268B, NUE/PMUE7273B, AND NUE7275B UHF (450-520MHz)
TRANSCEIVER BOARDS’ SCHEMATIC DIAGRAM (Sheet 2 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: ......