(Sheet 1 Of 2) - Motorola HT-1000 Service Manual

C121
20pF
0V RX
6-6.8V TX
R199
0
C137
4.7pF
S101
SWITCH
C151
ANTENNA 15pF
1 3
1
2
C150
CONTACT
4 TO UNIVERSAL
L108 3.3pF
J401
180nH CONNECTOR
8
EXTERNAL
ANTENNA
RF SWITCH
2
5 6 7 9
G1
1 CR109
P402
3
TO UNIVERSAL
2
2
CONNECTOR
EXTERNAL
1
ANTENNA
C153 C141
2pF 3.3pF
INDICATES A COMPONENT THAT IS NOT PLACED
*
C1 2
3.3pF
DAC_SEL 5VREG
R114
22K
C132
CR101 .022uF
1
3
2
CR103
2
R111
3
0V RX
10K R113
1
5V TX
10K
NC
R110
10K
C117
33pF
10 7 5 2
C2 R2 U105
4.7V TX 0V RX
8 9
C1 U104 R1
RF PA
3 4
COUPLER
5 1
RF_OUT RF_IN RFOUT RFIN
1 6
L105
2 4 3
33nH
2 1
C135
33pF
CR108
3
C107 C109 C102
33pF 33pF
*
L127
6.5nH
0V RX C105 C106 C108
5.1V TX
.022uF 33pF
*
L126
180nH
C149
2.4pF
R128
51K
TX 5V
Q2 *
1 5
4
C138
20pF
2 3
NC NC
R2 8
10K
C1 5
.022uF
6
U1
7
RF_OUT
1 7 2
U4
IN OUT RF_IN
RF
.55- .7 V
4
3-POLE FILTER
ABP
2 13 AMPLIFIER
5
GND GND AG2
3 12
GND GND C1 0
C1 6 R2 7
6.8pF 2.4pF
10
1 3 8
4 5 6 8 9 10 11
C1 1
100pF
LCK
B+
CLK
D
5V TX 0V RX
A3 D2 C1 C2 B1
B2
E3
CLK SW 1 0V TX 5V RX
C3 D1
SEL SW 2
A4
EN_BIAS
B4 U102
D4
NC EN_ANT REF_DA
C4
TX_DA
DAC
A2
C5
R104
DATA RX_DA
NC
B3 0
RESET
D5
R105
R_T
*
C123
33pF
D3 E4 B5 E2
NC
6.6V TX
7.5V RX
R129
1K
Q101 1
RT101
2 3 50K
C111
33pF
C120 C104 C101
C103
0.1uF
.022uF 33pF
1uF
4
2 3
R6
C110
Q110 1MEG
33pF
C115
*
0.22uF
1
4.3 V TX 7.4 V RX
R4
*
R5
*
L9
270nH
C6 C8
C5
47pF 33pF 3300pF
C3 1 C1 9
L8 .022uF 33pF
180nH
CR107
3
1 2 1 7
U5
IN OUT
C4 C7
3-POLE FILTER
8.2pF 20pF
2 13
GND GND
3 12
GND GND
C1 3 C7 2
C8 8
10uF 33pF
3.6pF 4 5 6 8 9 10 11
NUF6499B/C AND NUF6502B/C (900MHz)
TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM (Sheet 1 of 2)
84
5VREG
Q108
5 1 0V TX 5V RX
4
C119
.022uF
3 2
C133
10uF
5V TX 0V RX
R103
C118
1K
33pF
.37V TX 7.5V RX
R102
5.6K
E4 D4 E3 D3
E2
ICATH_2
C4 D1
5V_TX TX 12
D5 D2
TEMP_SENSE U101 RX_1
C5 C1
DA_REF BIAS_RT
C3 ALC C2
INT_CAP_OUT ANODE_2
B5 B1
PA_CNTL ANT_SW_BS
B4 B2
PA_OUT CATH_1
A4 A3 B3 A2
R3
100
5V
T1
3
XFMR
.43V
4 3
C9 8 7 11
RFN IFN
5.1pF
2 8 12
RFP U2 IFP
2
MIXER BBP
.43V 14
5 1 4
LOIN BUFFER BDIV
3.93 V
1 5 6 9 10 13
R7
100
C8 9 C8 3 C8 4
C8 5
.022uF 33pF .022uF
10uF
LCK
B+
CLK
D
Tx_RF
R101
3.3K
C122
33pF
R120
2K
C140
.022uF
AGC
LO
C9 2
.022uF
5V
3 4
IF
T2
2
15V07
5V
1 5
C8 2
C9 0
C9 1
.022uF
33pF
10uF
63B81097C07-O
Sheet 1 of 2