Kenwood TM-V71A Service Manual page 101

TX-RX UNIT (X57-731X-XX) (D/6): CONTROL SECTION
5M FLS_SW
C954
FLS_SW
1000p
R950
5M
1k
SIM3
SIM4
5M
PKS(PNL)
BUFFER
IC951
TC74HC4050AFT
1 16
PANEL I/F VCC NC2
2 15
R952 0
1Y 6Y
3 14
J952 R953 1k
1A 6A
R954 0 4 13
8 SQC(PNL)
2Y NC1
7 RXD(PNL)
R955 0 5 12
6 PKD(PNL)
2A 5Y RXD(PNL)
5 PKS(PNL)
6 11
R956 1k
4 TXD(PNL)
3Y 5A
3 GND
C957 7 10
2 PB
R957 0 3A 4Y
1 PR(PNL)
1000p 8 9
GND 4A SQC(PNL)
C958
0.1u
TXD(PNL)
C952
PKD(PNL)
1u R995
2.3V
5C
C953 3.3k
4.7u
SW
Q955 C808 R816
2SC4617(R) PR(PNL)_OUT
0.8V 4.7u 5.6k
1.4V
PB
R980
5M
0
D951-953
LIMITER
MIC I/F
R958 0
REVERSE
J951
CURRENT
R959 0
8 CM(DWN) PREVENTION
7 HOOK PTT
6 MIC R960 0 D954
5 ME
MIC 4 PTT R961 0 1SS355
3 GND
R962 0 R981 C967
2 8C
8C
1 MBL(UP)
R963 0 33 0.01u
5M
MIC
C988
R982 1k
MIC_DW
0.1u
R983 100
PTT
R984 1k
MIC_UP
MIC AMP
&ALC
OP AMP
IC802
C814
NJM2100V-ZB
1 8
560p
AoUTPUT
V+
2 7
A-INPUT
BoUTPUT
C812 C815 3 6
A+INPUT
B-INPUT
0.047u 0.039u 4 5 R819
V-
B+INPUT
47k
C818 0.1u
C819 1000p
SW
C820 0.1u
D801
C865 4.7u10
AMP R809
R806
Q801
100
2SC4919 SW
820
D802
DAN222
C816
0.1u
1SS372F
AUDIO AMP AF AMP
IC801
LA4629
13.75V
C821 R814 R817
0.47u 33k 33k
6.6V
DTC363EU
L921
J801 C803
330n
SP1 6.6V
330u25 L922 C822 R815 R818
330n 0.47u 33k 33k
J802 C804
1.5V 1.5V
SP2
330u25
C805 R803
0.1u 100k DTC363EU
R813
4.7k
SW
Q816
DTC363EU
Q802
KRC102S-P
SW
X57-731X-XX R967 R971
0-11 K NO NO
2-71 E NO 0
0-21 M4 0 NO
EEPROM
EEPCS
IC916
AT25256A10TU27 EEPSO
1 8
CNT_CLK
CS VCC
2 7
CNT_DT
So HoLD
3 6
WP SCK
4 5
GND SI
C916 0.1u
C917 1000p
R917
0
X916
R918 R920
0 L77-3022-05 0
11.0592MHz SW
SW
Q917
Q916
DTC144EE
DTC144EE
C918 C923
1000p 1000p
BSHIFT
PRE-EMP
&IDC OP AMP
IC803 MOD AMP
NJM2100V-ZB
R827 1 8
AoUTPUT
V+
4.7k 2 A-INPUT 7
BoUTPUT
3 6
A+INPUT
C838 R838
B-INPUT
4 5
V-
8200p 3.9k
B+INPUT
C855 0.1u
7.95V 7.95V C856 1000p
C857 0.1u
R829
ACTIVE
4.8V
FILTER
1.8M
C830 R826 R828 R848
Q805
ACTIVE
4.8V
2SC4617(S)
0.1u 47k 47k 1.8M FILTER
C831 C839 R839 R840
Q808
2SC4617(S)
3300p 4.7V 0.1u 47k 47k
MIC MUTE
C842 C848 C861
SPL FILTER
3300p 4.7V 1u 1u
Q809
2SK1830F
TONE C860
1000p
R856 R863
47k 47k
De-emp_A
C828
R854
1u
33
4.7V 1.9V
SW
R845 R861
DET_A
Q803
3V
0.85V
680k 820k
C845 C849 C863 R913
AF_A
4700p 4700p Q810 0.01u 5.6k
C829 Q806
2SC4617(R)
2SC4617(R)
1u C834 R836 R849 0.3V
0.01u 4.7k 2.5V 27k ACTIVE
FILTER
Q806
SW
Q804 ACTIVE
FILTER De-emp_B
R855
33
4.7V 1.9V
DET_B
R846 R862
3V
680k 820k 0.85V
C850
C846 C864 R912
AF_B
4700p Q811 0.01u 5.6k
4700p
Q807
2SC4617(R)
2SC4617(R)
C835 R837 R850 0.3V
0.01u 4.7k 2.5V 27k ACTIVE
FILTER
Q807
ACTIVE
FILTER
5M
DTMF
ELECTORICAL
VOLUME IC
IC804
M62364FP-F
1
VIN1
2
SW
VoUT1
Q812
3
2SK1830F VoUT2
4
VIN2
5
VDD
6
LD
7
CLK
8
DI
MODAMP_OUT MODAMP_OUT 9
VIN3
10
VoUT3
11
VoUT4
12
VIN4
C874
C875
TCXO
PKD SEL
MULTIPLEXER
IC917
TC4W53FU-F
1 8
AVREF
CoMMoM VDD
2 7
INH CH0
3 6
VEE CH1
4 5
VSS A
C929 0.1u
C930 1000p
C873 R875 R876
1u 120k 120k
R877
330k
TONE AMP_B
TOIN_A
TOIN_B
1 75
SB_C
2 74
NC
3 73
DTMF/1750
NC
TONE
4 72
AMP_STB
RTS(PC)
BSHIFT
5 71
NC CTS(PC)
R930 6 70
BYTE SQC(EXT)
47k 7 69
NC PKS(EXT)
8 68
NC TEMP
9 67
NC VSF
10 66
RESET VBSY
11 65
XoUT VPLY
12 64
VSS MPU VEN
13 63
XIN * IC918 VRST
14
62 C934
VCC1 VSS2
R932 15 61 1u
NMI NC
47k 16 60
NC VCC2
17 59 C933
SIS NC
18 58 1000p
INT DA2_EN
19 57
XSW_LD 2099_EN
20 56
PKD96_MUTE B_PLLEN
21 55
EEPCS A_PLLUL
22 54
A_PLLEN
EEPSO
23 53
MIC_MUTE2 B_PLLUL
24 52
EEPCK SIM0
25 EEPSI 51
SIM1
XSW
CROSS POINT
SW IC
IC806
BU8241FS
24 1 24
VIN8 SOUT PS
23 2 23
VoUT8 VDD LATCH
22 C894 3 22
VoUT7 VB CLK
21 10u10 4 21
VIN7 GND DIN
20 C895 1u 5 20
GND IN1 OUT1
19 C896 1u 6 19
RESET IN2 OUT2
18 C897 1u 7 18
VDAREF IN3 OUT3
17 C898 1u 8 17
D0 IN4 OUT4
CP802
16 C899 1u 9 16 C903 1u
VIN6 IN5 OUT5
15 C900 1u 10 15 C904 1u
VoUT6 IN6 OUT6
14 C901 1u 11 14 C905 1u
VoUT5 IN7 OUT7
13 RK74HB1J473J C902 1u 12 13 C906 1u
VIN5 IN8 OUT8
0.1u
1000p
INT
RESET IC
PKD AMP IC919
INT
BD4840FVE
AVREF R883 1 5
VoUT VDD
100 18V 2
ZENER SUB
3 4
DIODE
NC GND
Q918
R882 R889 C891 DTC144EE
SW
560k 10k 1u
4CH OP AMP
OVER VOLTAGE
DETECT
IC805
NJM2112V-ZB
1 14
AoUT DoUT
2 13 R887
A-IN D-IN
3 12 10k
A+IN D+IN RESET IC
4 11
IC920
V+ V- RESET
5 10 BD4840FVE
B+IN C+IN
1
6 9 R884 R888 C887
VoUT VDD
B-IN C-IN
2
7 8 120k 120k 1u
SUB
BoUT CoUT
3
NC GND
R885
0.1u
C880 390k
C881 1000p
TONE AMP_A
CN960
S5M
L917 50 S5M
S5M
49 NC
8C
L951 48 8C
8C
47 NC
5C
L952 46 5C
5C
45 NC
44 SB_C
SB_C
43 ILLM
ILLM
42 IGN
IGN
41 TXD(PC)
TXD(PC)
40 RXD(PC)
RXD(PC)
39 RTS(PC)
RTS(PC)
38 CTS(PC)
CTS(PC)
37 SQC(EXT)
SQC(EXT)
S5M 36 PKS(EXT)
PKS(EXT)
R938 47k
35 PKD(EXT)
PKD(EXT)
R939 47k
34 PR1(EXT)
CP922 PR1(EXT)
33 GND
RTS(PC)
32 SM_A
CTS(PC) SM_A
31 SQ_A
SQC(EXT) SQ_A
RK74HB1J102J 30 VSF
PKS(EXT) VSF
CP923
29 TEMP
TEMP TEMP
28 SM_B
VSF SM_B
RK75HA1J102J 27 SQ_B
VBSY SQ_B
26 GND
CP924
VPLY
25 DET_A
VEN DET_A
24 PR(PNL)
VRST PR(PNL)
DET_B
23
RK74HB1J102J DET_B
22 GND
21 VBSY
VBSY
20 VPLY
VPLY
19 VEN
DA2_EN VEN
18 VRST
2099_EN VRST
17 DA2_EN
B_PLLEN DA2_EN
16 2099_EN
A_PLLUL 2099_EN
15 TR_CLK
A_PLLEN TR_CLK
14 TR_DT
B_PLLUL TR_DT
13 B_PLLEN
SIM0 B_PLLEN
12 A_PLLUL
SIM1 A_PLLUL
11 A_PLLEN
A_PLLEN
10 B_PLLUL
B_PLLUL
9 VGSPLAY
VGSPLAY
8 TCXO_A
TCXO_A
SIM2
7 VCO_B
VCO_B
SIM3
6 VCO_A
VCO_A
SIM4
5 TCXO_B
TCXO_B
SIM5
4 VGSREC
VGSREC
SIM6
3 SIM0
SIM0
MIC_MUTE1
2 SIM1
R946 47k
SIM1
1 SIM2
SIM2
DA1_EN
CP925
TCXO_A_MUTE
TCXO_B_MUTE
RK75HA1J102J CN961
CNT_CLK
1 CB
CNT_DT INTSP
2 GND
3 GND
4 INTSP
CB
CB
CB
VOLTAGE DETECT
R992
BATT
270k
5.1V
R909 ZENER
DIODE
10k
R908
13.75V
10k
2CH ANALOG SW SW SCB
SCB
IC807 Q953
TC7W66FK-F CPH6122 R969
SCB
1 8 0
IN_oUT1
VCC
2 oUT_IN1 7
CoNT1
3 CoNT2 6
oUT_IN2
4 5
GND
IN_oUT2
SW PB
13.75V
Q951
SCB_C
DTC144EE
C978
1000p 10V AVR
Q817 IC952
2SK1824-A BAJ0CC0T
SW
POLY-SW
10V
D956
R987 MINISMDC110F16
PB
0
REVERSE
5M
CURRENT
PREVENTION
5V AVR
IC953
TA7805FQ
5V
R986 1
2
5M oUT IN
0
GND
3
SW S5M
Q954
DTA123JUA
DTMF DECODER S5M
IC921
LC73881M-E
1 10
INPUT VDD
2 9
SW
PD EST
3 8
Q952
RESET oSCo STD S5M_C
DTC144EE
4 7
5M oSCI ACK
5 6
VSS SD
C945 0.1u
5
5M C946 1000p
4
X917
L78-0459-05
4.19MHz
X57-731X-XX IC918
0-11 K 3062LFGPUKBVB
2-71 E 3062LFGPUKBWB
0-21 M4 3062LFGPUKBWB
SP