TM840 Service Manual
78
R5
10k 5%
FB1
BLM18PG181SN1
1
2
3
4
5
SW1
SWITCH
R6
10k 5%
R3
10k 5%
C1
0.1uF 20% 50V
FB3
B L M 1 5 A G 2 2 1 S N 1 D
R2
10K 5%
nc
R1
10K 5%
nc
1
ROW7
2
ROW6
3
ROW5
4
ROW4
6
ROW2
7
ROW
1
8
ROW
0
9
COL
0
10
COL
1
11
COL
2
12
COL
3
COL4
13
COL5
14
COL6
15
COL7
16
COL8
17
COL9
18
GND
19
R
ESET#
20
VC
C
21
SD
A
22
SC
L
23
5
ROW3
INT
#
24
GND
25
U1
TCA8418
1
+
2
-
SPK1
SPEAKER
3
1
4
2
SW2
SWITCH
R9
10K 5%
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
J1
CON40
C2
0.1U
F
C26
0.1U
F
C24
100pF
C23
100pF
C27
100pF
C830
4.7uF
C829
0.1uF
FB11
BLM18PG181SN1
1
2
D8
P
E
S
D
2
4
V
0
21
D7
P
E
S
D
2
4
V
0
FB12
B L M 1 5 A G 2 2 1 S N 1 D
FB13
B L M 1 5 A G 2 2 1 S N 1 D
FB14
B L M 1 5 A G 2 2 1 S N 1 D
FB15
B L M 1 5 A G 2 2 1 S N 1 D
FB16
B L M 1 5 A G 2 2 1 S N 1 D
FB17
B L M 1 5 A G 2 2 1 S N 1 D
FB18
B L M 1 5 A G 2 2 1 S N 1 D
FB19
B L M 1 5 A G 2 2 1 S N 1 D
FB20
B L M 1 5 A G 2 2 1 S N 1 D
FB21
B L M 1 5 A G 2 2 1 S N 1 D
FB23
B L M 1 5 A G 2 2 1 S N 1 D
FB24
B L M 1 5 A G 2 2 1 S N 1 D
FB25
B L M 1 5 A G 2 2 1 S N 1 D
1
2
D6
P
E
S
D
5
V
0
1
2
D1
5
P
E
S
D
5
V
0
1
2
D1
P
E
S
D
5
V
0
1
2
F1
1 2 0 6 L 0 1 2
FB8
BLM18PG181SN1
FB7
BLM18PG181SN1
FB22
B L M 1 5 A G 2 2 1 S N 1 D
F B 9
B L M 1 5 A G 2 2 1 S N 1 D
F B 4
B L M 1 5 A G 2 2 1 S N 1 D
C33
100pF
C34
100pF
FB2
B L M 1 5 A G 2 2 1 S N 1 D
FB26
B L M 1 5 A G 2 2 1 S N 1 D
F B 2 8
B L M 1 5 A G 2 2 1 S N 1 D
C35
100pF
C36
100pF
C37
100pF
C38
100pF
C39
100pF
C40
100pF
C41
100pF
C42
100pF
C43
100pF
C44
100pF
C45
100pF
C46
100pF
C47
100pF
R4
10k 5%
10K
5%
R34
Q 9 0 8
DT
C114YE
1
2
3
D17
DAN222G
C25
0.1uF 20% 50V
D18
DA2S10100L
10K
5%
R10
Q1
DTC114YE
10K
5%
R11
3V3_OMAP
3V3_OMAP
3V3_OMAP
3V3_OMAP
DC13V8
3V3_OMAP
KEY_LED
LED0
LED1
KB-C00
KB-C01
KB-C02
KB-C03
KB-R01
KB-R02
KB-R03
LCD_RESET#
LCD_D0
LCD_D1
LCD_D3
LCD_D4
LCD_D5
LCD_D6
CH_BC
BLC
CM
HOOK
CH_AC
LCD_D7
LCD_WR
LCD_RS
LCD_RD
LCD_CS
LCD_BL
USB0_DP
USB0_DM
POWER_KEY1
I2C0_SDA
I2C0_SCL
KEYBORAD_INT
KEYBOARD_RESET
EMERGENCY_KEY
CH_AC
CH_BC
EMERGENCY_KEY
MIC-
MIC+
PTT
POWER_DIS
LCD_D2
KEYBOARD_RESET
I2C0_SDA
I2C0_SCL
KEYBORAD_INT
3V3_OMAP
3V3_OMAP
3V3_OMAP
POWER_DIS
POWER_KEY1
EMERGENCY_KEY
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 ...