Kenwood TH-K40A Service Manual page 27

F
TX-RX UNIT (X57-822X-XX)
SHIFT
CURRENT
5MS
5MSC
SPM
5CC
5TC
VOX
R331
56k
REM
R332
SB
56k
RSSI
SQL
C401
0.01u
C403
470p
5MS
INT PTT
RxD
PTT
TxD
1
2
3
4 VS S
EX25064ATA00A
BEEP
CN309
5M
5M
SB
SB
CN307
+B
RESET
5C
5T
5R
VOX
BEEP
SQL
RSSI
5RC
G
SCHEMATIC DIAGRAM
76
5TC
77
VOL_CS
78
DCSW
79
CURRENT
80
VOX
81
REM
82
BATT
83
THERM
84
RSSI
85
SQL
86
LSDI
87
CV_DET
KEYO4 R454 1k
88
KEYO4
R455 1k
KEYO3 89
KEYO3
KEYO2 R456 1k
90
KEYO2
91
VL1
92
VL2
93
VL3
94
SHIFT
KEYO1 R457 1k
95
KEYO1
96
VL4
R458
KEYI1 1k
97
KEYI1
KEYI2 R459 1k
98
KEYI2
KEYI3 R460 1k
99
KEYI3
KEYI4 R461 1k
1 0 0
KEYI4
KEYIT R462
R383
1k
KEYIS
10k
C N3 04
5M
EEPROM
CN400
CN401
C427 1000p
CN402
0.01u
C428
5.0V GND
RESET
IC400
S VCC
8
Q HOLD
7
W
C
6
D
5
5C
7.51V
CN311
CN308
GND
CN310
5T
H
TH-K40A/K40E
SHIFT
CURRENT
THERM
CV_DET
LSDI
DCSW
VOL_CS
5MS
DATA
CLK
MCU
IC401
R5F2L3ACCKEKA
R419
C 41 3
5.0V
4.7k
0.1u
MODE
C4 14
270p
L77-2974-05
11.0592MHz
C412
X400
1p
Q400 R424
1k
2SC4649(N,P)
SWITCH
CLK
DATA
PTT
LSDO
E2PCS
E2PIN
5C
+B
+B
5R
5R
VOX
HSDO
BEEP
5RC
SQL
RSSI
5T
I J
5VC
SEG15
50
SEG15
SEG14
SEG14 49
SEG13
SEG13
48
SEG12
SEG12
47
SEG11
SEG11
46
SEG10
SEG10
45
SEG9
SEG9
44
SEG8
SEG8
43
SEG7
SEG7
42
SEG6
SEG6
41
SEG5
SEG5
40
SEG4
SEG4
39
SEG3
SEG3
38
SEG2
SEG2
37
SEG1
SEG1
36
SEG0
SEG0
35
COM3
COM3 CP1
34
COM2
COM2
33
COM1
COM1
32
COM0
COM0
31
1k x4
E2PIN
30
E2PCS
29
NC
28
LAMP
LAMP
27
PTT
26
+B
X57-821 1/1
X57-822 2/4
SHIFT
CURRENT
THERM
DCSW
CV_DET
PLLPS
5MS
PLLD
5MS
DATA
CLK
5C
LSDI
VOL_CS
PLLEN
+B
LSDO
5VC
5R
VOX
HSDO
BEEP
SQL
W/N
RSSI
5T
27