TM840 Service Manual
72
VCO
C434
1p
R196
68R
C435
1p
C438 56p
R203 68R
R204
3.3k
C440
6p
C442 5p
L127
330n
C446
0.1UF
R331
68R
L126
68n
C450
220PF
C453 100PF
C459
220p
L117
330n
R341
27
C460
7PF
L134
330n
1
2
D121
1SV305
R345
6.8k
C462
5P
2
1
1S
V
305 D122
C465 6PF
R347
220
L118
330n
C469
5PF
1
2
D125 1SV305
L124
15NH
R349 68R
C472
0.1UF
C475
2p
R353
6.8k
C480 8PF
R355
100
C484
5pF
L121
330n
12
D108
1sv305
C490
0.1UF
L129 330nH
C492 220p
C494
5P
L137
15NH
1
2
D109
1sv305
2
1
D26
1sv305
R359
3.3K
C496
220p
R361
220
L133 330nH
C503 220p
2
1
D126
1
SV3
0
5
L140
330n
1
C515
4p
2
D107 1sv305
C517
220p
L139
68n
C521
4P
R370 100
C523
220PF
C524
0.1UF
C527 56p
C531
470p
1
2
3
4
5
U108 UMC4
1
2
3
4
5
U26 UMC4
E
B
C
Q24
2SC3356
E
B
C
Q29
2SC3356
TP6
TO_PLL
TP7
RX_LO
C437
2pF
C445
22pF
R223
100P
C447
220pF
L57
180nH
C454
0.1uF
C456
150pF
C457
150pF
FB24
5FE1-BLM11A601S/1k
C458
103
C461
33pF
1
2
3
4
U46 GVA-63+
1
IN
2
3
OUT
4
U47LFCN-490
C101
10p
R187
47R
L16
27nH
C102
150PF
R280
15k
C103
100pF
E
B
C
Q26
2SC3356
R281
680k
C104
0.1UF
Q46
DTC144YE
R186
510R
C105
150pF
Q47 FMMT717A
R224 47K
R304
100P
R305
100P
C377
6PF
C380
3pF
C381
6PF
L15
12nH
FIN
RXLO1
RX_VCO_L
RX_VCO_H
RXVCO_5V
RXVCO_5V
GND
RXVCOCTR
RXVCOBUFFER_5V
CPOUT
TX_TOPLL
Summary of Contents for TM840
Page 1: ...TM840 Service Manual I ...
Page 19: ...TM840 Service Manual Figure4 3 4 Click Next to keep on installation 16 ...
Page 60: ...TM840 Service Manual Figure1 TM840 400 470MHz Mainboard Top Side PCB View 57 ...
Page 61: ...TM840 Service Manual Figure2 TM840 400 470MHz Mainboard Bottom Side PCB View 58 ...
Page 62: ...TM840 Service Manual Figure3 TM840 400 470MHz Keypad Board Bottom Side PCB View 59 ...
Page 63: ...TM840 Service Manual Figure4 TM840 400 470MHz Keypad Board Top Side PCB View 60 ...
Page 82: ...TM840 Service Manual Figure7 TM840 136 174MHz Mainboard Top Side PCB View 79 ...
Page 83: ...TM840 Service Manual Figure8 TM840 136 174MHz Main Board Bottom Side PCB View 80 ...
Page 84: ...TM840 Service Manual Figure9 TM840 136 174MHz Keypad Board Bottom Side PCB View 81 ...
Page 85: ...TM840 Service Manual Figure10 TM840 136 174MHz Keypad Board Top Side PCB View 82 ...