85
CLK
D
1.55V
2.5V
2.4V
3.0V
2.4V
3.65V
DAC SEL
2.5Vdc
0V
5V
GND
GND
GND
GND
4.7 V
4.7 V
2.5V
16.8 MHz
2.8V TX
3-11V
FLEX P301
DAC_SEL
CLOCK
1.65V
J301
U205
NC
16.8 MHz
MHz
BUFFER
LCK
B+
SYNTHESIZER
FRACTN IC
IF IC
NC
0V
2.4V RX
4.6V TX
4.7 V
4.6V
4.6V
4.7 V
NC
13V
2.5Vdc
NC
NC
5V
0V RX
NC
0V
5V
*
16.8
VCO
VCO MOD
2.28V
1.65V
SYN
LCK
CLK
D
NC
2.4V
2.6V
2.56 Vdc
0.8 V
3.3 V
0V OR 5V UNLOCK
LOCK DET
NC
NC
NC
NC
NC
NC
NC
VCO MOD
REF OSC
SYN SEL
VCO MOD
SW B+
GND
RAW B+
RAW B+
TO JUMPER
5V TX
NC
4.7 V
OTHERWISE LOCK
VCO
REF OSC
5V REG
C279
0.1uF
RSSI
SQ OUT
DATA
DISC
2.1 MHz
IF SEL
2.5 V dc
2.8 V
C250
0.1uF
R221
1K
2
RX
SW1
8
SW2
10
7
TRB
4
TX
16
TXBB
3
VCC
GND
1
5
GND
12
GND
IN
9
11
GND
14
NC
PRE
15
13
RBY
U201
6
FLIP
R215
39K
R214
22K
L209
10uH
C247
510pF
C244
.022uF
1200pF
1K
R212
C245
R213
C275
.047uF
2K
0.1uF
C239
0.1uF
C240
0.1uF
C237
C238
0.1uF
C270
4.7uF
0.1uF
C116
C114
0.1uF
C266
3300pF
C257
0.1uF
K2
2
1 K3
C256
0.1uF
CR204
A1 4
A2 5
A3 6
K1
3
9
8
VMULT2
7
VMULT3
6
VMULT4
12
A/D_BYPASS
XTAL1
14
15
XTAL2
24
SUPFBASE
18
17
SUPFCAP
20
SUPFIN
19
SUPFOUT
26
TST1
27
TST2
36
VCP
VMULT1
LOCK
5
MODIN
30
MODOUT
16
WARP
31
EN
43
R_GND1
44
R_GND2
PREIN
21
PVREF
EN_CE
10
FREFOUT
GND1
1
13
GND2
22
GND3
33
GND4
34
IADAPT
IOUT
32
41
CLK
29
CPBIAS1
CPBIAS2
28
2
DATA
11
DC5V1
DC5V2
23
25
DC5V3
DC5V4
42
4
35
ADAPTSW
37
AUX1
38
AUX2
AUX3
39
40
AUX4
3
0.1uF
U204
C60
0.1uF
C9
0.1uF
2.7K
C87
INPUT 8
OUTPUT
1
SENSE
2
SHUTDOWN 3
R32
U202
5V_TAP
6
5 ERROR
FEEDBACK 7
GND
4
10
RSSI OUT
9
SUM DEMOD
28
30
VAG
39
VAG
1
VCC 2_5V
27
VCO 5V
12
VI BYPASS
25
29
IOUT
18
OFFSET LOOP 5V
23
5
7 6
PREAMPOUT
PREAMP 5V
4
PREAMP IN
2
RAMP CAP
24
REF CLK
22
RSSI FLT
13
GN
D
1
GND DIEPAD3
16
26
GND DIEPAD4
GND DIEPAD5
41
GND DP1
8
GND DP2
15
GND PREAMP
3
HF DEMOD
C4POS 32
21
CEX
CHARGE PUMP 5V
11
CLK
20
CO
L
17
DATA
19
DM BYP
DM IN
EMIT
BASE
14
C1 NEG
37
C1 POS
38
35
C2NEG
36
C2 PO
S
C3NEG 33
C3POS 34
31
C4NEG
U3
AG
C
40
C54
CR5
39pF
C55
39pF
R35
L24
180nH
2.7K
R33
47K
C57
43pF
43pF
C56
Q1
1
3
2
C274
C284
.022uF
1K
R222
C34
0.1uF
VDD
13
VOPT
12
11
VREG
R22
33K
6
NC6
VDD2
14
15
NC8
16
NC9
SCK
22
25
SI
21
SO
24
SS
29
NC15
NC16
30
31
NC17
NC18
32
NC2
2
3
NC3
4
NC4
NC5
5
10
FOUT
26
VSSD/VSSA
1
NC1
17
NC10
NC11
18
19
NC12
20
NC13
NC14
28
U203
7
CEXT
DCWARP
27
9
DE
8
DET
EN_CE
23
C253
10uF
33pF
17
C251
3
2
3
1
.022u F
C126
20V
VR101
C201
C152
33pF
R201
3.6pF
3pF
33
7.5pF
C205
100pF
C61
C202
L23
1.5uH
510
R36
47pF
.022uF
C280
C35
180nH
L36
820nH
L20
OUT
1
IN
C36
2.7pF
FREQ=73.35MHz
FL1
2
GND
4
GND1
3
3.9pF
C38
L22
1.5uH
.022uF
C37
0.22uF
C43
0.22uF
C42
C45
0.22uF
0.22uF
C314
C44
2.2pF
C58
33pF
C47
0.1uF
0.1uF
C46
R37
C305
33pF
0
14
C306
33pF
11
C307
33pF
12
13
10
C41
6
C40
0.1
uF
3300pF
C3
100pF
CR4
1
2
3
R1
1.1K
C302
33pF
5
4
.022uF
C236
32V
1A
F1
20
1
8
16
9
19
18
3300pF
C303
3300pF
C309
C304
33pF
C289
2
43pF
C312
33pF
C311
3300pF
0.15uF
C53
R16
R25
200K
C52
.018uF
2.7K
20K
7
R17
51
R211
Q4
1
3
2
.022uF
C246
10K
R1=
47K
Q5
2
3
1
R21
C62
C225
0.1uF
3pF
33pF
C228
33pF
C211
3pF
C267
C204
C230
3300pF
C49
0.33uF
33pF
C233
33pF
C231
.022uF
10uF
C254
7
GND7
8
GND8
9
GND9
RFOUT
10
11
SW1
38
SW2
52
GND46
53
GND47
54
GND48
GND49
55
5
GND5
GND50
56
GND51
57
6
GND6
43
GND39
4
GND4
45
GND40
46
GND41
47
GND42
49
GND43
GND44
50
51
GND45
34
GND31 35
GND32
36
GND33
37
GND34
39
GND35
40
GND36
41
GND37
42
GND38
27
GND24 28
GND25 29
GND26 30
GND27 31
GND28 32
GND29
GND3
3
33
GND30
20
GND17 21
GND18 22
GND19
2
GND2
23
GND20 24
GND21
GND22
25
26
GND23
1
GND1
12
GND10
13
GND11
15
GND12
16
GND13
17
GND14
GND15
18 19
GND16
48
BPOS
CNTRL1
14 44
CNTRL2
33pF
C227
10uF
C271
33pF
C294
430pF
C48
0.1uF
C125
.022u F
C301
C255
.022uF
33pF
C310
C308
33pF
8.2pF
C95
10uF
C1
0.1uF
C65
5VREG
R34
47K
0.1uF
C258
BATT+
BATT-
NC
0.1uF
C96
C2
0.1uF
1.5K
R23
C313
33pF
15K
15
C214
.022uF
R220
C209
.022uF
15nH
L204
.047uF
C241
0.1uF
C260
.022uF
TP205
1
B+
B+
D
LCK
CLK
C219
IF
Tx_RF
5VREG
5VREG
AGC
5VREG
LO
2.1MHz
2.1MHz
P404
RF AMP
DOWN
MIXERS
RSS
90 DEG
PHASE
SHIFT
DFM
SECOND
LOCAL
OSCILLATOR
SYNTH
BASEBAND
FILTERS
UP CONVERSION
MIXERS
OMPAC ZIF
TP401
BANDPASS
FILTERS
LIM
DEMOD
MAIN
LOOP
OFFSET
LOOP
SERIAL
DATA
PORT
63B81097C07-O
Sheet 2 of 2
NUF6499B/C AND NUF6502B/C (900MHz)
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: ......