Boards' Schematic Diagram (Sheet 1 Of 2) - Motorola HT-1000 Service Manual

NOTES:
1. UNLESS OTHERWISE STATED RX DC VOLTAGES ARE MEASURED WITHOUT RF INTO J401.
2. RX RF VOLTAGES IN dBm ARE MEASURED WITH A 1.5 pF CAPACITOR IN SERIES WITH
THE 50 OHM ADAPTER OF AN RF MILLIVOLTMETER AND AN RF LEVEL OF -20 dBm INTO J401.
3. VOLTAGES IN mV ARE MEASURED WITH A X10 SCOPE PROBE.
4. THESE LEVELS MEASURED BY REMOVING R52.
5. MEASUREMENTS MADE ABOVE CROSSOVER FREQUENCY.
6. MEASUREMENTS MADE BELOW CROSSOVER FREQUENCY.
7. = NOT PLACED
*
2 5
PWR_OUT PWR_IN
CR103
U104 C133
4 7 2
REV_PWR FWD_PWR
6 3
3
REV_TRM FWD_TRM
1.8pF
1
CR102
2
7 8 9 10 11 12 13 14 15 16
3
R126
1
R127
NC
39 51
C132
6.8pF
5Vdc (RX)
0Vdc (TX)
SB+
Q104
Q107
1 5 3
2
C162
C154
330pF
4
330pF
5V_REG 4
2 3 5 1
NC
6.3Vdc (TX)
C146
330pF
R199 C130
11pF
*
ANTENNA
S101
L128
RF SWITCH
12T
L127
P401 J401 9T
1 3
GND 2
C151 C150
G1
10pF 20pF
TO UNIVERSAL
4
G2
CONNECTOR
8
EXTERNAL
ANTENNA
2
C112
TO UNIVERSAL
*
CONNECTOR P402
5 6 7 9
EXT. ANT.
1
C77
R4 R5
0.1uF
10K
10K
C4
330pF
L12 L14
L13
470nH
5T 5T
CR1 CR2 CR6 CR7
-42dBm
L11
4T
CR3 CR4 CR8 CR9
B+
C163
51pF
6.5Vdc (TX)
C121
5V_REG
330pF
R139
C118
C153 C152
100K
DAC CLK D 0.1uF
330pF 330pF
5Vdc (TX)
R111
C3 B2 A2 A3 B3
C156 0Vdc (RX)
5.6K
1uF
R110
2.2K
R129
D1
SW2 4.7K
NC B5 A4
NC EN_BIAS
E2 C4
SW_C U102 TX_DA
R113
D/A IC
0.5Vdc, 136MHz
33K 5Vdc (TX)
D4 B1
0Vdc, 178MHz
REF_DA SC4
0Vdc (RX)
D5
C2
R_T SC3
Q105
D2
SC1
1
0Vdc (RX)
R115
Q108 E3 C5
C1 E4 D3 B4
180K
5 1 NC NC
R116
4 130K
2
3 2
R117
L131
C129
47K
1uH
1pF
CR108
6.7Vdc (RX)
L126 5.6Vdc (TX)
7.4Vdc (RX)
12T
L122
C147
.022uF
1uH
C141
CR109 330pF
C149 C148
20pF 5.1pF
L121
1uH
C140 R131
330pF 100K
-49dBm
7.3Vdc (RX)
FREQ V (RX)
136MHz 1.0Vdc
R8
156MHz 2.3Vdc
178MHz 4.0Vdc 470
L8
150nH
6
L6 L7
68nH 120nH
2 OUT 7
IN
U1
1.4Vdc
-34dBm RF AMPLIFIER
R1
4 5
ABP AG2
10
1 3 8
L16 C9
0.6Vdc
*
4T
R2
56K
C14 C13
22uF .01uF
E101
NC
C164 C101 C102 C103
0.1uF
100pF 330pF 10uF C104
3.3uF
6 1
RF_OUT RF_IN
3
V_CONTROL
U105 5
L130
C116 B_PLUS
4
RF P.A.
SWB_PLUS
R114
1uH
1pF
15K
C107
330pF
C161
C109
1uF
0.1uF
2.5Vdc
2.45Vdc (TX)
R106
3.3K
5 C123 C139
0.1uF *
4
U103
5V REG
5Vdc
1 3
3 0Vdc (RX)
OUT IN
C126 C128
2
3.3uF 1uF
1
TP10
4.6Vdc (RX/TX)
4.3Vdc (RX) (NOTE 4)
R72
100
C71
330pF
R70
CR12 1.5K
1
NC
3
2
4.7Vdc (NOTE 4)
C15
100pF
4.8Vdc -62dBm (NOTE 4)
CR11
L9 L3 L4
L10
100nH 56nH 47nH 39nH 47nH
C7
2.7pF 6.2pF
C97
13pF
C11 C90 C16 C6 C8
C87
.01uF 4.3pF 5.1pF 6.2pF 16pF
16pF
NUD7091B, NUD7092B, NUD/PMUD7095B, AND NUD7096B VHF (136-178MHz)
64 TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM (Sheet 1 of 2)
R101
L101
0 1uH
2.2Vdc (TX)
B+
Q110
C106
C108 C105
330pF 330pF
10uF
B+
LCK
Q101 4.9Vdc (TX)
0Vdc (RX)
NC NC
D3 E4 E3 C1
E2 B4
ICATH_2 PA_OUT
A3 B5
RE_DET PA_CNTL
D1 C2
TX12 ANODE_2 NC
C5 U101 D2
DA_REF RX_1 NC
TX ALC IC
D5
TEMP_SENSE
B1 C4
ANT_SW_BS 5V_TX
B2 C3
CATH_1 INT_CAP_OUT
A2 B3 D4 A4
C115
L105
.033uF 2.9Vdc (TX)
1uH
0Vdc (RX)
C135
R112
330pF
1MEG
R102
2.5Vdc (TX)
4.7K
3.2Vdc (TX)
5Vdc (TX)
0Vdc (RX)
C113
330pF
L32
2.2uH
C72
C12
330pF
*
4.8Vdc (RX)
0.1Vdc (TX)
0.4Vdc (RX)
R7
C83 C85
100
.01uF 10uF
3
C80 C99
L5
33pF 33pF
5 1
8
RF1
7
C86 U2
RF2
2
MIXER
14 BUFFER
LOIN
4 3
T1
1 5 6 9
L30 C98
C88
8.2pF 0.047 uH 330pF
TX_LO
RT101
50K
C111
330pF
AGC
C31
.01uF
T2
1 5
IF
2
12
IFP
11 3 4
IFN
2
BBP
4
BDIV 4Vdc 1Vdc
C84 C82
.01uF .01uF
10 13
-31dBm (RX)
0.5Vdc
RX_LO
63B81097C02-O
Sheet 1 of 2