RELM RM8150 Series, Руководство по обслуживанию

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Schematic diagram for KEY board and microphone board
K3
P1
R366
1k
R337
1k
R368
1k
K6
P4
K5
P3
K4
P2
1
2
3
4
5
8
6
7
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
CN701
PIN34
CM
HOOK/RXD
MIC
PTT/TXD
GND
PSB(13.6V)
MBL
ME
C703
471
C704
471
R339
100R
R720
220R
R719
220R
2
1 3
D701
R723
220R R724
220R
R725
68R R726
68R
Q704
DTC114EE
Q701
2SC4617
Q702
2SC4617
R717
150R
R718
4.7K
R338
4.7K
RLED GLED
R759
1K
R335
1K
K1
CH+
K2
CH-
KEY
BOARD
Q530
2SK1824
C377
471
R369
47k
R336
1K
TO LCD DRIVE
R438
10K
C724
471
C721
471
C725
471
C722
471
C723
471
C726
471
8C
GND
+B12V
ME
MIC
GND
GND
CM
MBL/LED
GLED
RLED
UPKEY
DOWNKEY
KEY1
KEY2
KEY3
KEY4
TXD/PTT
RXD/HOOK
KEYLED
CS
RD
WR
DATA
BLC
RST
GND
VOLO
MINVOL
VOLI
GND
GND
PWRSW
5M
R301
82K
R302
82K
R303
82K
R304
82K
R305
82K
R306
82K
R711
220R
R716
68R
D703
LED
D705
LED
D702
LED
D704
LED
D708
LED
D706
LED
MBL
PSB
GND
PTT
ME
MIC
RXD
CM
CN702
CON8
11
1
2
3
4
5
6
7
8
9
10
CN303
PIN10
GND
VR1
10K
K7
PWR
D709
LED
R727
560R
+
-
1
J1
+
-
2
J2
R340
1K
R341
10K
R345
1k
R344 1k
R346 1k
R347 1k
R343 1k
R342 1k
OUT IN
GN
D
U1
78L05
C340
10uF/6.3V
C339
471
K1
PTT
R6
0R
C1
470P
C3
470P
1
2
3
4
5
6
7
8
J5
*
1
1
J4
C6
470P
CM
HOOK\RXD
MIC
ME
PTT\TXD
GND
PSB(13.8V)
MBL
JI
MIC
OUT IN
GN
D
U1
78L05
C2
0.47uF
R5
470R
C4
470P
C5
4.7u/16v
R8 1.8K
C8
104
C7
100P
R7
2.7K
C10
683
R9
220R