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P
Q
DISPLAY UNIT (X54-3450-10)
MHz & MENU
ADJUASTMENT
S1
W02-3665-05
C39
ENCODER
0.1u
D31
R55
0
1SS355
R47
47k
J1
8
MBL(Key A)
R48
8C
GND
PTT
47k
ME
MIC
HOOK
CM
1
CN1
18
MIC
17
ME
16
GND
15
PTT
14
BRI
13
RXD
12
POWER
11
VOL
10
8C
9
5C
8
DO
7
CL
6
CE
5
DI(from LCD)
4
MIC KEY
3
ENCODER B
2
CM
1
ENCODER A
X57-6863-XX
C350
C368
C369
C371
-00
C
400-430MHz
NO
7p
NO
0.5p
-01
C2
440-480MHz
470p
10p
0.75p
0.75p
X57-6863-XX
C456
C472
C502
C523
-00
C
400-430MHz
4p
3p
5p
27p
-01
C2
440-480MHz
3p
2.5p
3p
47p
X57-6863-XX
C620
L354
L355
L356
-00
C
400-430MHz
NO
12.5n
12.5n
22n
8n
-01
C2
440-480MHz
1p
8n
18n
X57-6863-XX
R350
R358
R373
R423
-00
C
400-430MHz
NO
47
18k
330
-01
C2
440-480MHz
27k
39
15k
220
Note : The components marked with a dot (•) are parts of layer 1.
R
SCHEMATIC DIAGRAM
MR
VFO
CALL
REV
Func
49
NC
50
KI1
51
KI2
52
4.96V
KI3
53
ON/OFF & VOLUME
NC
ADJUASTMENT
54
NC
4.94V
55
NC
VR1
R46
R31-0646-05
56
VDD
57
100
VDD1
58
VDD2
59
VSS
VARIABLE
60
RESISTOR
OSC
61
DO (to cpu)
62
CE
63
CL
64
CP1
DI (from cpu)
R90-0724-05
4.96V
L1
R21
R22
R23
10k
10k
10k
7.90V
KEY BACKLIT SWITCH
KEY ILLUMINATION
Q10
D2
D3
D4
KRA225S
R10
1.2k
B30-2205-05
D2-4
KEY BACKLIT
4.80V(BRIGHTNESS MAX)
Q6
0V(BRIGHTNESS OFF)
KRC102S
DC SWITCH
C372
C373
C381
C384
C387
C390
C392
15p
8p
7p
7p
NO
8p
3p
20p
10p
5p
8p
1p
10p
6p
C524
C527
C540
C541
C545
C548
C549
10p
15p
8p
18p
NO
39p
39p
8p
12p
47p
33p
10p
33p
33p
L357
L359
L360
L406
L407
L408
L409
39n
12.5n
8n
270n
270n
56n
270n
33n
8n
5n
4.7u
4.7u
27n
4.7u
R424
R436
R439
R514
R515
R524
R525
270
120k
120k
56
33
NO
0
150
82k
82k
47
10
820
5.6
S
TM-471A
LCD (B38-0885-05)
32
SEG27
31
SEG26
30
SEG25
29
SEG24
28
SEG23
27
SEG22
26
SEG20
LCD CONTROLLER
25
SEG20
IC3
24
PT6554LQ
SEG19
or
23
LC75854W
SEG18
22
SEG17
21
SEG16
20
SEG15
19
SEG14
18
SEG13
17
SEG12
LCD BACKLIT
SWITCH
7.10V
7.90V
Q9
D19
2SB1132(Q,R)
R49
56
B30-2205-05
D22
R41
7.30V
56
B30-2205-05
D25
R50
56
B30-2205-05
D28
R54
Q12
56
UMG3N
B30-2205-05
R8
5.02V
1k
DIMMER
FUNCTION
SWITCH
C393
C426
C427
C429
C430
C431
C434
2.5p
8p
7p
2p
2p
3p
5p
0.75p
18p
12p
1.5p
6p
5p
9p
C564
C567
C579
C580
C601
C602
C604
20p
10p
NO
NO
5p
10p
2p
9p
15p
NO
4p
NO
470p
1p
L410
L411
L412
L413
L414
L415
L470
270n
270n
270n
47n
180n
270n
27n
4.7u
27u
27u
27n
27u
27u
22n
R526
R538
D353
D603
D605
NO
47k
HVC355B
NO
XB15A709
820
56k
HVC350B
XB15A709
NO
T
LCD ILLUMINATION
D20
D21
B30-2205-05
B30-2205-05
D23
D24
B30-2205-05
B30-2205-05
D26
D27
B30-2205-05
B30-2205-05
D29
D30
B30-2205-05
B30-2205-05
D19-30
LCD BACKLIT
C438
C439
C440
C454
2p
2p
3p
4p
1p
3p
4p
6p
C605
C608
C610
C611
3p
6p
2p
10p
4p
3p
6p
4p
L507
R93
R119
R349
5n
6.8k
0
NO
2.5n
8.2k
NO
47k
Q354
TC402
TH401
NO
6p
NO
2SK1830
10p
10k
37
X54-345 1/1
1
2
3
4
5
6
7
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