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MOTOROLA HT-1000 Service Manual: Nuf6410b/c, Nuf6498b/c, Nuf6500b/c And Nuf6501c (800mhz) Transceiver Boards' Schematic Diagram (sheet 2 Of 2)

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5VREG
LCK
B+
CLK
D
C258
C245
0.1uF
.022uF
C114
C270
0.1uF
4.7uF
C256
0.1uF
2.5Vdc
5V
0V
CR204
2.5Vdc
3
4
5V
Tx_RF
K1
A1
2
5
0V
K2
A2
1
6
K3
A3
C257
0.1uF
R201
0
C202
20pF
C201
4.7pF
4.7 V
VCO
BUFFER
3
4.7 V
4 TX
9
0V
IN
2 RX
16
LO
TXBB
NC
8 SW 1
13
C204
U201
RBY
33pF
10 SW 2
7
TRB
6
15
C205
PRE
FLIP
14 NC
11
3pF
NC
GND
12
5
1
C236
.022uF
C219
.022uF
5VREG
AGC
FREQ=73.35MHz
FL1
1
3
IF
IN
OUT
L36
L20
L22
180nH
820nH
1.5uH
.022uF
C35
C38
47pF
2
4
3.9pF
C36
2.7pF
C65
C1
0.1uF
10uF
C54
39pF
CR5
R17
L24
20K
180nH
C52
.018uF
R16
C53
0.15uF
2.7K
2.1MHz
13 V
C116
0.1uF
14
XTAL1
R221
15 XTAL2
C289
NC
1K
43pF
10 FREFOUT
30 MODOUT
C247
1200pF
9 VMULT1
8 VMULT2
7 VMULT3
NC
TP201
6 VMULT4
NC
C228
C246
C24
.022uF
33pF
1
510pF
37 AUX1
NC
38
R213
AUX2
39 AUX3
2K
40 AUX4
L209
NC
10uH
SYNTHESIZER
26 TST1
27 TST2
R212
NC
1K
C275
R211
.047uF
32 IOUT
FRACTN IC
51
34 IADAPT
41 LOCK
5V TX
35 ADAPTSW
0V RX
19 SUPFOUT
C240
C239
C238
C237
C241
00.1uF
0.1uF
0.1uF
0.1uF
0.1uF
10
57
56
55
54
53
52
51
50
49
47
46
45
43
42
41
40
39
37
36
5V
L204
15nH
C209
C214
.022uF
.022uF
U205
2.4 RX
4.6V TX
48
VCO
BPOS
R220
15K
C225
C230
33pF
33pF
14 44
11
38
1
2
3
4
5
6 7 8 9
12 13 1516
17 18 19
C3
3300pF
Q4
2
3
R1
R21
CR4
R23
10K
1.1K
1
1
1.5K
C34
3
0.1uF
2
NC
C2
C37
R22
0.1uF
33K
L23
1.5uH
R36
510
R34
R32
47K
2.7K
C87
3.3V
0.1uF
3
1
Q1
C55
2
39pF
R35
C56
47K
43pF
C58
2.2pF
R33
2.7K
C57
43pF
R25
200K
36
42
25
23
11
C284
C279
C251
C250
.022uF
0.1uF
33pF
0.1uF
3
CLK
SYN
4
EN_CE
VCO MOD
5
MODIN
2
DATA
SUPFIN 20
R222
1K
C266
C274
3300pF
24
*
7 CEXT
PVREF
NC
NC
12
11
A/D_BYPASS
NC
8 DET
U204
4.6V
29
10 FOUT
CPBIAS1
28
4.6V
21 SO
CPBIAS2
NC
4.7 V
17
SUPFCAP
18
32
SUPFBASE
NC
21
31 NC17
PREIN
R215
R214
30 NC16
51K
39K
16
29 NC15
WARP
EN 31
28
C211
C253
43
20 NC13
R_GND1
3pF
10uF
44
19 NC12
C271
R_GND2
18 NC11
10uF
17 NC10
33
22
13
1
4.7 V
C294
33pF
C267
3300pF
35
GND32
34
GND31
0.8 V
33
GND30
32
GND29
31
GND28
30
C40
GND27
C41
100pF
2.6V
29
GND26
28
0.1uF
GND25
27
GND24
26
GND23
25
GND22
7
6
5
4
3
2
1
41
40
39
38
24
GND21
23
GND20
22
GND19
21
GND18
20
GND17
RF AMP
8
GND DP1
BASEBAND
DOWN
UP CONVERSION
FILTERS
MIXERS
MIXERS
9 RSSI OUT
U3
RSSI FLT
10
IF IC
RSS
11
OMPAC ZIF
CHARGE PUMP 5V
90 DEG
TP401
C60
PHASE
0.1uF
SHIFT
BANDPASS
LIM
FILTERS
VCO 5V
12
DFM
SECOND
13
EMIT
LOCAL
OSCILLATOR
SERIAL
14 BASE
OFFSET
MAIN
C61
SYNTH
DATA
100pF
LOOP
LOOP
PORT
15
GND DP2
C95
8.2pF
2.28V
16
17
18
19
20
21
22
23
24
25
C49
C9
1.65V
0.33uF
0.1uF
3.65 V
C62
C96
0.1uF
0.1uF
NUF6410B/C, NUF6498B/C, NUF6500B/C AND NUF6501C (800MHz)
TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM (Sheet 2 of 2)
5VREG
5VREG
LCK
B+
3
CLK
VR101
2
20 V
D
1
C126
16.8 MHz
.022uF
C255
C254
.022uF
10uF
U202
13
C260
C227
5V REG
.047uF
33pF
23
1
INPUT 8
EN_CE
OUTPUT
24
5 ERROR
FEEDBACK 7
SS
27
2
SHUTDOWN 3
DCWARP
SENSE
VREG
9
6
DE
5V_TAP
12
VOPT
C280
22
SCK
U203
4
25
SI
.022uF
REF OSC
1
NC18
NC1
2
NC2
3
NC3
4
NC4
NC5 5
NC14
16.8
D
CLK
LCK
6
NC6
MHz
14
C301
C125
VDD2
15
.022uF
0.1uF
NC8
16
NC9
C231
C233
26
33pF
.022uF
J301
17
C309
3300pF
VCO MOD
3
C303
3300pF
2.5 Vdc
C42
4
0.22uF
C310
2.4V
33pF
1.55 V
37
36
5
2.1MHz
C304
33pF
C43
0.22uF
13
C2NEG 35
DAC_SEL
C312
C44
33pF
2.5V
C3POS
34
0.22uF
C3NEG
33
2.4V
7
C45
3.0V
C4POS
32
0.22uF
C308
33pF
C4NEG 31
2.4V
VAG
30
6
C314
C46
33pF
0.1uF
DEMOD
R37
0
12
C305
33pF
29
HF DEMOD
28
SUM DEMOD
2.8 V
10
C306
33pF
27
2.5 Vdc
VCC 2_5V
C47
0.1uF
2
26
15
R1=
47K
C313
C48
33pF
430pF
3
1
0V OR 5V UNLOCK
OTHERWISE LOCK
14
C311
3300pF
11
C307
33pF
63B81097C05-O
B+
BATT+
BATT-
NC
C152
33pF
F1
1A
32V
J301
1
RAW B+
20
RAW B+
8
GND
9
GND
16
GND
18
GND
19
GND
SW B+
C302
33pF
SYN SEL
VCO MOD
LOCK DET
REF OSC SEL
TO JUMPER
FLEX P301
2.1 MHz
DAC SEL
DATA
SQ OUT
DISC
CLOCK
IF SEL
RSSI
Sheet 2 of 2
77

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This manual also for:

Jt-1000, Mt-2000, Mts-2000

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