Kenwood TM-D710A Service Manual page 70

A
TM-D710A/D710E
TX-RX UNIT (X57-731X-XX)(A/6) : TX-RX SECTION
1
CN642
VGS-1
NC 25 26 NC
NC 23 24 NC
NC 21 22 NC
NC 19 20 NC
NC 17 18 NC
NC 15 16 NC
13 14
AGND 5C
VAI 11 12 VAO
DGND 9 10 AGND
USEL 7 8 VRST
CLK 5 6 VEN
SO 3 4 DATA
VBSY 1 2 VPLY
2
T:13.7V
CN641
1
SB
FAN
2
FAN_C
T:1.8V
3
IGN
IGN(GND)
CN676
CB 2 CB
GND 1 GND
CN677
S5M 1
NC 2
8C 3
4
NC 4
5C 5
NC 6
SB_C 7
ILLM 8
IGN 9
TXD(PC) 10
RXD(PC) 11
RTS(PC) 12
CTS(PC) 13
SQC(EXT) 14
PKS(EXT) 15
PKD(EXT) 16
PR1(EXT) 17
GND 18
SM_A 19
SQ_A 20
5
VSF 21
TEMP 22
SM_B 23
SQ_B 24
GND 25
DET_A 26
PR(PNL) 27
DET_B 28
GND 29
VBSY 30
VPLY 31
VEN 32
VRST 33
DA2_EN 34
2099_EN 35
TR_CLK 36
TR_DT 37
6
B_PLLEN 38
A_PLLUL 39
A_PLLEN 40
B_PLLUL 41
VGSPLAY 42
TCXO_A 43
VCO_B 44
VCO_A 45
TCXO_B 46
VGSREC 47
SIM0 48
SIM1 49
SIM2 50
X57-731X-XX
7
0-11
2-71
0-21
70
X57-731 (A/6) 1/8
B
VGS-1 I/F
C660
R649
1u 150k
C665
R651
22k
1u
COOLING FAN
F641
0.5A
L641
F53-0128-05
SW
L642 R646
Q641
2SC4617(R)
22
1/2
R648
1k
AUX POW SW
R641
Q642
DTC144EE
1M
1/4
S5M
8C
5C
SB_C
ILLM
IGN
TXD(PC)
RXD(PC)
RTS(PC)
CTS(PC)
SQC(EXT)
PKS(EXT)
PKD(EXT)
PR1(EXT)
TEMP
SM_A
SQ_A
VSF
TEMP
SM_B
SQ_B
DET_A
PR(PNL)
DET_B
VBSY
VPLY
VEN
VRST
DA2_EN
2099_EN
TR_CLK
TR_DT
B_PLLEN
A_PLLUL
A_PLLEN
B_PLLUL
VGSPLAY
TCXO_A
VCO_B
VCO_A
TCXO_B
VGSREC
SIM0
SIM1
SIM2
R654 R656 R658 W601
K 0 0 NO YES
E NO NO 0 NO
M4 NO 0 NO YES
C
SCHEMATIC DIAGRAM
Vcc
5C
AI
VGSREC
RST
VRST
DRE
VEN
DATA
TR_DT
PLAY
VPLY
BUSY
VBSY
CLK
TR_CLK
AO
VGSPLAY
C531
TCXO_A
C532
5C
TCXO_A_REF
SB
A_PLLUL
R652
FAN_C
2.2k
IGN
SW
SIM0
SIM1
SIM2
CB
C533
TCXO_B
C534
5C
TCXO_B_REF
B_PLLUL
DET_A
PR9(EXT)
DET_B
PR(PNL)
PR(PNL)_SEL
PR9_SEL
5RAM_C
CP666
5C
RK75HA1J472J
5C
FWD_REF
REV_REF
BPF_B
BPF_A
TCXO_B_REF
TCXO_A_REF
TR_DT
TR_CLK
DA2_EN
D
A BAND
12.8MHz
X1
L77-3018-05
4.7u
VC VCC
4.7u
GND oUTPUT
0.01u
R1
100k
B BAND
16.8MHz
X66
L77-3017-05
4.7u
VC VCC
4.7u
C68
GND oUTPUT
0.01u
R66
100k
4CH MULTIPLEXER
IC666
BU4053BCFV
1 16
Y1 VDD
2 15
Y0 Y
3 14
Z1 X
4 13
Z
X1
5 12
Z0 X0
6 11
INH A
7 10
VEE B
8 9
VSS C
C666
0.1u
R685
220
D/A
IC667
BH2228FV
1 14
Ao1 VSS
2 13
Ao2 VFS
3 12
Ao3 DI
4 11
Ao4 CLK
5 10
Ao5 CSB
6 9
Ao6 VDD
7 8
NC1 NC2
CP667
RK74HB1J102J
E
C3
C673
27p
L607
390n