Kenwood TM-D710A Service Manual page 78

A
TM-D710A/D710E
TX-RX UNIT (X57-731X-XX)(D/6) : CONTROL SECTION
1
FLS_SW
5M
C954
1000p
PANEL I/F
R952 0
R953 1k
J952
R954 0
8 SQC(PNL)
7 RXD(PNL)
R955 0
6 PKD(PNL)
5 PKS(PNL)
R956 1k
4 TXD(PNL)
3 GND
2
2 PB
R957 0
1 PR(PNL)
D951-953
3
LIMITER
MIC I/F
R958 0
J951
R959 0
8 CM(DWN)
7 HOOK
R960 0
6 MIC
5 ME
R961 0
MIC 4 PTT
3 GND
R962 0
2 8C
1 MBL(UP)
R963 0
4
SW
D801
AMP
R806
Q801
2SC4919
820
5 DAN222
6
6.6V
J801 C803
6.6V
SP1 330u25
J802 C804
SP2 330u25
C805 R803
0.1u 100k
7 X57-731X-XX R967 R971
0-11 K NO NO
2-71 E NO 0
0-21 M4 0 NO
78
X57-731 (D/6) 1/2
B
SCHEMATIC DIAGRAM
FLS_SW
R950
1k
PKS(PNL)
BUFFER
IC951
TC74HC4050AFT
1 16
VCC NC2
2 15
1Y 6Y
3 14
1A 6A
4 13
2Y NC1
5 12
2A 5Y RXD(PNL)
6 11
3Y 5A
C957
7 10
3A 4Y
1000p 8 9
GND 4A SQC(PNL)
C958
0.1u
TXD(PNL)
C952
PKD(PNL)
R995
1u
2.3V
C953 3.3k
4.7u
SW
C808
Q955 R816
2SC4617(R) PR(PNL)_OUT
5.6k
0.8V 4.7u
1.4V
R980
0
REVERSE
CURRENT
PREVENTION
PTT
D954
1SS355
R981 C967
33 0.01u
MIC
C988
R982 1k
MIC_DW
0.1u
R983 100
R984 1k
MIC_UP
MIC AMP
&ALC
OP AMP
IC802
C814
NJM2100V-ZB
560p 1 8
AoUTPUT
V+
2 7
A-INPUT
BoUTPUT
C812 C815 3 6
A+INPUT
B-INPUT
4 5 R819
0.047u 0.039u
V-
B+INPUT
47k
0.1u
C818
1000p
C819
0.1u
C820
C865 4.7u10
R809
100
SW
D802
C816
0.1u
1SS372F
AUDIO AMP
IC801
LA4629
13.75V
C821 R814 R817
33k 33k
0.47u
L921
330n
C822
L922 R815 R818
330n
33k 33k
0.47u
1.5V 1.5V
R813
4.7k
SW
Q816
DTC363EU
Q802
KRC102S-P
SW
C
5M
SIM3
SIM4
5M
EEPROM
IC916
AT25256A10TU27
1 8
CS VCC
2 7
So HoLD
3 6
WP SCK
4 5
GND SI
C916 0.1u
C917 1000p
5C
R917
0
R918 X916 R920
0 0
L77-3022-05
11.0592MHz
SW
Q916
DTC144EE
PB
5M C918
1000p
BSHIFT
8C
5M
PTT
PRE-EMP
R827
4.7k
C838
R838
8200p 3.9k
7.95V
R829
ACTIVE
4.8V
FILTER
1.8M
C830 R826 R828
Q805
2SC4617(S)
47k 47k
0.1u
C831 C839
R839
3300p 4.7V 0.1u 47k
SPL FILTER
TONE
C828
1u
SW
Q803
DTC363EU
AF_A
C829
C834
1u R836
0.01u 4.7k
SW
Q804
DTC363EU
AF_B
C835 R837
4.7k
0.01u
D
EEPCS
EEPSO
CNT_CLK
CNT_DT
SW
Q917
DTC144EE
C923
1000p
&IDC
OP AMP
MOD AMP
IC803
NJM2100V-ZB
1 8
AoUTPUT
V+
2 7
A-INPUT
BoUTPUT
3 6
A+INPUT
B-INPUT
4 5
V-
B+INPUT
C855 0.1u
7.95V C856 1000p
C857 0.1u
R848
ACTIVE
4.8V
1.8M FILTER
R840
Q808
2SC4617(S)
47k
MIC MUTE
C842 C848 C861
4.7V
3300p 1u 1u
Q809
2SK1830F
C860
1000p
R856 R863
47k 47k
De-emp_A
R854
33
4.7V 1.9V
R845 R861
DET_A
3V
0.85V
680k 820k
C845 C849 C863
R913
4700p 4700p Q810 0.01u 5.6k
Q806
2SC4617(R)
2SC4617(R)
0.3V
R849
2.5V 27k ACTIVE
FILTER
Q806
ACTIVE
De-emp_B
FILTER
R855
33
4.7V 1.9V
DET_B
R846 R862
3V
0.85V
680k 820k
C846 C850
C864 R912
Q811 0.01u 5.6k
4700p 4700p
Q807
2SC4617(R)
2SC4617(R)
0.3V
R850
2.5V 27k ACTIVE
FILTER
Q807
ACTIVE
FILTER
E
SW
Q812
2SK1830F
MODAMP_OUT
PKD SEL
MULTIPLEXER
IC917
TC4W53FU-F
1 8
CoMMoM VDD
2 7
INH CH0
3 6
VEE CH1
4 5
VSS A
C929 0.1u
C930 1000p