(Sheet 2 Of 2) - Motorola HT-1000 Service Manual

5VREG
LCK
B+
CLK
D
C258 C245
C270
0.1uF .022uF
4.7uF
C256
0.1uF
Tx_RF
CR204 2.5Vdc
5V
3 4
K1 A1 0V
2 5
K2 A2
1 6 2.5Vdc
K3 A3
5V
0V
C257
0.1uF
R201
33
C202
7.5pF
C201
3.6pF
4.7 V
3
4.7 V 4 9 0V
TX IN
4.7 V 2 16
LO RX U201 TXBB
NC
C204 8 13
3pF SW1 RBY
VCO
10 7
SW2 TRB
15 BUFFER 6 5V
C205
PRE FLIP
3pF 14 11
NC NC GND
12 5 1
C236 L204
.022uF 15nH
C219
.022uF
4.6V TX
2.4V RX
5VREG
AGC
Q4
2 3
1
FREQ=73.35MHz R23 C34
1.5K 0.1uF
FL1
1 3
IF
IN OUT
L36 L20 L22
C37
180nH 820nH 1.5uH .022uF
L23
1.5uH
C35 C36 2 4 C38
47pF 2.7pF 3.9pF
R36
510
C65 R34
C1
3.3 V
0.1uF 47K
10uF
3
1
2.28V
Q1
C54 C55
39pF 39pF
2
CR5 1.65V
C56
43pF
R17 L24
R35
20K 180nH
47K
R33
C57
2.7K
43pF
C52
.018uF
R25
200K
C53 R16
0.15uF 2.7K
2.1MHz
13V
36 42
C114 C116
14
0.1uF 0.1uF
XTAL1
15
R221
C289 NC XTAL2
1K
43pF
10
FREFOUT
2.8V TX 30
MODOUT
C247
1200pF 9
VMULT1
8
VMULT2
7
NC VMULT3
TP205 6
VMULT4 U204
NC
C246
.022uF 37
R213 1
NC AUX1
2K 38
C228 C244
AUX2
33pF 510pF 39
AUX3
40
AUX4
NC
SYNTHESIZER
L209
26
10uH
TST1
27
R212 NC TST2
C275 1K
FRACTN IC
R211
.047uF 3-11V 32
51 IOUT
34
IADAPT
41
LOCK
35
ADAPTSW
19
C240 C239 C238 C237 C241
SUPFOUT
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
5V TX
0V RX
33 22
10 57 56 55 54 53 52 51 50 49 47 46 45 43 42 41 40 39 37 36
GND32
35
GND31
34
GND30
33
GND29
32
C209 C214 GND28
.022uF .022uF 31
GND27
30
U205 GND26
29
GND25
28
VCO
BPOS GND24
48 27
R220 GND23
26
15K GND22
25
GND21
24
GND20
23
GND19
22
GND18
C230 C225 21
GND17
33pF 33pF 20
14 44 11 38 1 2 3 4 5 6 7 8 9 121315161718 19
C3
3300pF
R1 CR4
1.1K
1
3
R21
2
10K
NC
C61
C2 100pF
R22
0.1uF
33K
R32
2.7K
C87
C9
0.1uF 0.1uF
C58
2.2pF
16.8 MHz
25 23 11
C284
.022uF 13
C279 C251 C250
0.1uF
33pF 0.1uF
23
EN_CE
3 7 24
C274
CLK NC CEXT SS
*
11 27
R222
VREG DCWARP
4 8 9
EN_CE 1K DET DE
10 12
FOUT VOPT
5 VCO MOD 21 22
MODIN NC SO SCK
2 U203 25
DATA SI
20
REF OSC
SUPFIN
32 1
C266 NC18 NC1
24 31 2
3300pF
PVREF NC NC17 NC2
12 30 3
A/D_BYPASS NC NC16 NC3
29 4
NC15 NC4
4.6V
29 28 5
CPBIAS1 NC14 NC5
28 4.6V 20 6
CPBIAS2 NC13 NC6
19 14
NC12 VDD2
17 4.7 V 18 15
SUPFCAP NC11 NC8
18 17 16
SUPFBASE NC NC10 NC9
21
PREIN
26
C253 R214 R215
16
10uF 22K 39K
WARP
31
EN
SYN
43
R_GND1 C211
44
3pF
R_GND2
C267
3300pF
C271
13 1
10uF
4.7 V VCO MOD
C294
33pF
0.8 V
2.5 V dc
C40
100pF
C42
2.6V 0.22uF
C41
2.4V
0.1
uF
7 6 5 4 3 2 1 41 40 39 38 37 36
RF AMP
C2NEG
8 GND DP1
DOWN BASEBAND UP CONVERSION
FILTERS MIXERS C3POS 34
MIXERS
9 RSSI OUT C3NEG 33
U3
10 RSSI FLT C4POS 32
IF IC
RSS
OMPAC ZIF
11 C4NEG
CHARGE PUMP 5V
90 DEG
TP401
PHASE
SHIFT
BANDPASS
LIM DEMOD
FILTERS
12 VCO 5V
DFM
C60
0.1uF
SECOND
13 EMIT
LOCAL
OSCILLATOR SERIAL
14 OFFSET MAIN
BASE SYNTH DATA
LOOP LOOP HF DEMOD
PORT
15
SUM DEMOD
GND DP2
C95
8.2pF
VCC 2_5V
16 17 18 19 20 21 22 23 24 25 26
2.5V
C48
C49
430pF
0.33uF
3.65V 0V OR 5V UNLOCK
OTHERWISE LOCK
C62 C96
1.65V
0.1uF 0.1uF
5VREG 5VREG
LCK
B+
3
2 VR101
20 V
CLK
1
C126 C152
.022u F 33pF
D
16.8 MHz
32V
C255
C254
.022uF
C260 C227
10uF
.047uF 33pF U202
5V REG
1 8
OUTPUT INPUT
5 7
NC ERROR FEEDBACK
2 3
SENSE SHUTDOWN
6
5V_TAP
GND
4
C280
.022uF
D CLK 16.8 LCK
MHz
C231 C233
33pF .022uF
C301 C125 C302
.022u F 0.1uF 33pF
C309
3300pF
C303
3300pF
C310
33pF
C304
1.55V 2.1MHz
33pF
C43
0.22uF
DAC_SEL
C312
33pF
35
C44
2.5V
0.22uF
2.4V C308
33pF
C45
3.0V
0.22uF
2.4V
31
C314
VAG 30
33pF
C46 R37
0.1uF
0
C305
33pF
29
28 2.8 V
C306
33pF
2.56 Vdc
27
C47 2
Q5
0.1uF
C313
33pF
R1=
47K
3
1
C311
3300pF
C307
33pF
63B81097C07-O
Sheet 2 of 2
NUF6499B/C AND NUF6502B/C (900MHz)
TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM (Sheet 2 of 2)
P404
B+
BATT+
BATT-
NC
F1
1A
J301
1
RAW B+
20 RAW B+
8 GND
9
GND
16 GND
18 GND
19 GND
2 SW B+
17
SYN SEL
3 VCO MOD
4 LOCK DET
REF OSC
5
TO JUMPER
2.1 MHz
13 FLEX P301
7 DAC SEL
6
DATA
12 SQ OUT
10
DISC
15 CLOCK
14 IF SEL
11
RSSI
85