Kenwood TK-8180 Service Manual page 63

DISPLAY UNIT (X54-3480-10)
FKEY[1] FKEY[5]
FKEY[2] FKEY[6]
CP909
100*2
FKEY[3] FKEY[7] FKEY[9]
CP908
100*2
FKEY[4] FKEY[8] FKEY[10]
CP907
100*2
CP906
100*2
FKEY[10]
CP905
4.97V
POWER
FKEY[9]
100*2
FKEY[8]
CP904
FKEY[7]
100*2
FKEY[6]
CP903
FKEY[5]
100*2
FKEY[4]
CP902
FKEY[3]
100*2
FKEY[2]
CP901
FKEY[1]
100*2
VOLTAGE
IC901
REGULATOR/5V
TA78L05F 5.05V
3
1
7.84V
IN OUT
COM
2
Q910
8C SW
12A02CH
7.84V 7.84V
7.10V
8C SW
CONTROL
Q911
DTC114EE
0.01V
VOLTAGE
Q901 Q902
PROTECTION
DTC144EE DTC144EE
Q901,902
HOOK SW
C910 C914
4.61V
100p 100p
C911
5.02V
J901
100p
R901
8 DM
7
HK
1k
6 MIC
5
ME
R903
7
PTT
3
E
470
2 SB
1 BLC
R904
D904
1k
13.3V DA204U
5.03V
T:0.01V
R:5.02V
SP2
VOLTAGE
PROTECTION
TX BUSY
INDICATION
INDICATION
LED SW LED SW
Q904 Q905
DTC114EE DTC114EE
T:4.80V
R:0.01V TX BUSY
R:0.01V
BUSY:4.83V
D907
B30-2151-05
TX/BUSY
INDICATION
76 50
S17
NC
77
49
S16
NC
78
48
S15
NC
79 47
S14
NC
80 46
S13
NC
81 45
S12 TP1
82
44
S11
NC
83
43
S10 NC
84 42
S9
NC
85 41
S8 NC
86 40
S7
NC
87 MICROPROCESSOR 39
S6
NC
88
IC902 38
S5 NC
30302M8-8Z7GP
89 37
S4 NC
90 36
S3 NC
91 35
S2 NC
R944
92 34
S1 HK/RXD
93 0
33
NC NC
94
32
AVSS NC
95 31
NC DM
96 30
VREF
NC
97 29
PTT/TXD
AVCC
L909
98 28
TXD2
NC
99 L908
27
NC RXD2
100 26
NC NC
5.04V
C924
C922
0.01u 10p
C920
100p
X901
L77-1956-05
D903
MINISMDC020
D905 D906
CURRENT
DA204U
DA204U
LIMITER
D904-906
SURGE PROTECTION
BACKLIGHT CONTROL SW
7.79V
Q909
LCD
12A02CH
7.84V
DIMMER SW
Q907
2SC2873(Y)
0.66V
R942 7.10V
0V 47
R943
4.62V
100
Q906
DTC114EE
Q913
DIMMER SW
DTC114EE
CONTROL
BACKLIGHT
CONTROL
D909-920 D921-930
LCD BACKLIGHT KEY BACKLIGHT
LCD
B38-0888-05
R941
1k
TH901
R940
100
S1R103J440H
100k
R958
4.7k
LCDRST LCDRST
LCDCS LCDCS
LCDCK LCDCK
LCDDT LCDDT
SW_8C SW_8C
5C 5C
RX RX
TX
TX
RST RST
ME ME
PSW PSW
SB SB
8C 8C
Key
76
S76
77
S77
78
S78
79
CoM10/S79
80
COM[9] CoM9/S80
R969
R967 81
COM[8] CoM8
270
0 82
COM[7] CoM7
R971
83
COM[6] CoM6
-t
1k
84
COM[5] CoM5
C930
85
COM[4] CoM4
0.01u 86
COM[3] CoM3
C931
87
LCD DRIVER
COM[2] CoM2
4.7u10 88 IC903
COM[1] CoM1
LC75810T-8726
89
5.05V
VDD
7.43V 90
VLCD
R957 R956 R955 91
VLCD0
4.7k
4.7k 4.7k 92
VLCD1
93
VLCD2
94
VLCD3
95
VSS
96
oSC
97
RES
98
CE
99
CL
100
DI
50
S50 S[50]
49
S49 S[49]
48
S48 S[48]
47
S47 S[47]
46
S46 S[46]
45
S45 S[45]
44
S44 S[44]
43
S43 S[43]
42
S42 S[42]
41
S41 S[41]
40
S40 S[40]
39
S39 S[39]
38
S38 S[38]
37
S37 S[37]
36
S36 S[36]
35
S35 S[35]
34
S34 S[34]
33
S33 S[33]
32
S32 S[32]
31
S31 S[31]
30
S30 S[30]
29
S29 S[29]
28
S28 S[28]
27
S27 S[27]
26
S26 S[26]
CN902
GND 30
GND 29
RXD 28
TXD
27
5C 26
NC 25
SHIFT/MODEL 24
NC 23
GND
22
GND
21
GND 20
RST2 19
PSENS 18
GND 17
ME
16
MIC 15
GND 14
GND 13
PSW 12
NC
11
SB
10
SB 9
8C 8
GND 7
SPO 6
SPO
5
SPO 4
SPO 3
SPO 2
SPO 1
1
CN901
SP CONNECTOR
2