Kenwood TK-8102 Service Manual page 50

P Q
DISPLAY UNIT (X54-3460-20)
5C
PTT
ME
MIC
HOOK
CM
CN1
GND
1
PTT
2
MIC
3
4 POWER
ME
5
HOOK
6
KMI2
7
8 CM
KMI1
9
KMI3
10
KMO1
11
KMI4
12
13 KMO2
SB
14
5C
15
16
CL
17
18 DI
R1
R2
R3
R4
R5
R6
X57-6920-XX C48 C303 C304
-22 M 450-490MHz 0.047u 4700p 220p
-23 M2 485-520MHz 0.01u 4700p 220p
-24 M3 400-430MHz 0.01u 1000p 120p
X57-6910-XX C502 C523 C528
-22 M 450-490MHz 2p 4p NO
-23 M2 485-520MHz 2p 4p 2p
-24 M3 400-430MHz 5p 7p NO
X57-6910-XX L354 L355 L356
-22 M 450-490MHz 8n 8n 18n
-23 M2 485-520MHz 5n 8n 18n
-24 M3 400-430MHz 12.5n 12.5n 22n
Note : The components marked with a dot (
R
SCHEMATIC DIAGRAM
D1-4
KEY BACKLIT
3.7V
D1 D2 R14
13.46V
2.7k
B30-2238-05
B30-2238-05
NORMAL AMBER
3.7V
D3 D4 R15
2.7k
B30-2238-05
B30-2238-05
MICBL
SHIFT REGISTER FOR
LED & MICBL CONTROL
IC1
BU2090FS
4.96V
1 16
VSS VDD
2 15
DATA Q11
3
14
CLOCK Q10
MICBL 4
13
Q0 Q9
LEDMON 5 LEDG
12
Q1 Q8
LEDPF LEDR
6 11
Q2 Q7
LEDC1 LEDC4
7 10
Q3 Q6
LEDC2 8 LEDC3
9
Q4 Q5
L1
R20
5C
2.2k
BUSY LIGHT SWITCH
1k
1k
1k
1k
1k
1k
P M
1 2 3 4
C305 C367 C369 C373 C381 C384 C386 C388
220p 470p 1.5p 9p 7p 7p 0.5p 6p
220p 47p 6p 7p 6p 5p 0.5p 3p
120p 470p NO 8p 7p 7p 0.75p 6p
C601 C604 C605 C610 C611 C612 R304 R305
NO 1.5p 2p 6p 4p 1p 4.7k 1.8k
3p 2p 1p 4p 3p 2p 4.7k 1.8k
5p 2p 2p 7p 6p 2p 12k 18k
L358 L359 L406 L407 L408 L409 L410 L411
8n 8n 4.7u 4.7u 27n 4.7u 4.7u 27u
5n 8n 270n 270n 39n 180n 270n 270n
12.5n 12.5n 270n 270n 56n 270n 270n 270n
•
S
Q9
Q9,10
KRA225S
KEY BACKLIT SWITCH
Q10
KRC102S
R19
2.2k
MICBL
5C
PTT
ME
MIC
HOOK
CM
MONITOR KEY LIGHT
0.17V 11.4V
R7
2.7k
B30-2239-05
PROGRAMMABLE KEY LIGHT
0.17V 11.35V
R8
2.7k
B30-2239-05
CHANNEL KEY LIGHT
0.16V
11.34V
R9
2.7k
B30-2239-05
0.16V 11.40V
R10
2.7k
B30-2239-05
0.16V 11.40V
R11
2.7k
B30-2239-05
0.16V 11.38V
R12
2.7k
B30-2239-05
CP3
3.9k
0.17V
11.1V
Q4
KRC102S
B30-2237-05
CP4
TRANSMIT
3.9k
R13
0.15V 9.57V
2.7k
B30-2240-05
C390 C426 C427 C429 C430 C431 C434 C435
8p 18p 12p 1p 6p 5p 8p 6p
5p 5p 4p 2p 2p 3p 4p 3p
8p 8p 7p 2p 2p 3p 5p 6p
R306 R311 R312 R381 R423 R424 R502 R506 TC352
270k 33k 47k 0 220 150 10 56k
270k 27k 150k 0 270 220 33 56k
220k 33k 47k 10 330 270 10 120k
L412 L413 L414 L415 L504 D351 D352 D353
27u 27n 27u 27u 12n HVC350B HVC350B HVC350B
270n 33n 180n 270n 12n HVC355B HVC355B HVC355B
270n 47n 180n 270n 22n HVC350B HVC350B HVC355B
) are parts of layer 1.
T
TK-8102
R17
4.23V
J1
10
R16
1
PSB 2
100
3
4
5
6
7
8
M
D5
P
D6
D7-10
1
D7
SUPER AMBER
2
D8
3
D9
4
D10
BUSY
G
D11
YELLOW GREEN
R
D12
SUPER RED
C438 C439 C440
1p 3p 4p
1.5p 2p 3p
2p 2p 3p
TC402 TH401
6p 10p 10K
6p 10p NO
3p 6p NO
D354 D355
HVC350B HVC350B
HVC355B HVC355B
HVC350B HVC350B
47
X54-346 1/1
1
2
3
4
5
6
7