Kenwood TH-D72A Service Manual page 93

LCD ASSY R 9 8 3 1 0 0 k
R98 4 1 00 k
ENC1
ENC2
ENC2 14
DC
GND 13 SWITCH CP 38
ENC1 12 GP_PS
GND 1 1 Q 7 0 1 GP_ON
GP_BU 10 L 7 0 1 SSM3J05FU-F
NC 9 VGPS
L7 02
GND 8
AFVO 7
C N 7 0 3 TX-RX UNIT (X57-784X-XX)(A/3) : CONTROL SECTION AFVI 6
GP_PS 5
R9 75 1 k TXD_IGPS
TXD_IGPS 4
R 9 7 4 1 k
RXD_IGPS 3 RXD_IGPS
R726 33GP 2 L 70 3
/LCD_RST
0 GP_ON 1
C N 7 0 1
JP_WR
JP_WR R 7 6 1 0 /LCD_WR
JP_A0
JP_A0 R 7 6 2 0 A[0]
C 7 6 5
JP_D0
JP_D1 0. 1u
JP_D0 R753 0 D[0] D 7 0 1
JP_D2 SURGE
JP_D1 R754 0 D[1] PROTECTION
JP_D3 R 7 5 5 0 D[2]
JP_D4 JP_D2 R9 30 R7 02
JP_D3 R756 0 D[3]
JP_D5 1 00 1 0k
JP_D6 JP_D4 R757 0 D[4]
JP_D5 R 7 5 8 0 D[5] L 7 1 4
JP_D7 R 8 0 7
JP_D6 R 7 5 9 0 D[6] 0
JP_D7 R 7 6 0 0 D[7]
L 7 1 6
C74 8 L708
C 724 0 . 1 u
C725 1u 0 . 1 u 33C J701 PTT SPI
C 7 4 7 C 7 4 6 2 . 2 u 16 MIC
C726 1u INT MIC R 85 1 SPG
1000p IC703 NC MICG
C 7 2 7 1u LM 2682MMX 33C SPG L 7 1 8 0
C717 1u 1 C1- REM L 7 1 7 R 7 2 1
C 7 4 5 NC 4.7V NC
C718 1u 2 . 2 u 16 2 C2+ 8 INT SP 1 0k
3 C2- C1+ 7 R 7 3 4 47C SP R8 39
L 7 2 0
4 Vo UT VIN 6 47 0
3.3V G N D
5
IC701
LCD OP AMP DC/DC
CONVERTER
-10V LCDCNT R7 90
D 7 0 3
LCD CONTRAST C7 23 0
Vbus_DET SURGE
1 0 0 p PROTECTION
CN769 C P 3 3 TXD_USB
3.3V AVR
RXD_USB
3.3V
CTS_USB 7.3V D7 07 Q 7 0 3
CP 34
RTS_USB SWITCH
CP H34 17 SWITCH
5.0V
Q 7 0 3
D 70 6
Q 7 0 2
F 7 0 1 1 DCD N C 1 0 MA2S111-F
J 70 3 0.5A L 7 0 6 2 21 R7 17
R 7 1 2 0 RI NC9
Vbus 3 G N D 1 IC710 NC 8 20 10 k
D- D+ R7 11 0 4 CP2102SX0567 19
NC C 7 1 5 D+ NC7
GND D704 5 USB DRIVER 18 D 7 0 6 Q 7 0 2
1u L 7 0 5 D- NC 6 17 D 7 0 2
R725 6 V D D NC5 SURGE SPEED UP SWITCH
7 16 PROTECTION
1k REGIN NC4
RSB 12JS 2 15
C N 7 6 3
D704,705
SURGE
PROTECTION R972 R985 /SUSPEND
1k RST_USB
0
33C
33C LED LED
33C
DC IC708, 709 D71 0- D7 15 D71 8- D72 3
SWITCH Q704 Q 7 0 8
2S J347 F ANALOG B30-2215-05 B30-2215-05
SWITCH 232B_S LED LED TLEDB DC SWITCH
4 7 0 p C738 I C 7 0 9
3.3V TC7W53FK( F) C759 LAMPB
LAMPB
C714 1 CoMMoN 0.1u TXD_EGPS
VCC C P 3 6
0.1u 2 INH 8 RXD_EGPS RLEDB
3 VE E CH0 7
CH1
C713 3 CP3 5 4 GN D 6 SKY_SW
J 7 0 2 TXD R710 7 V- TIN A 5
0.1u 8 2 TLEDA
100 T o U T R o U T I C708
RXD R709 9 RIN C1+ 1 TC7W 53FK(F)
100 C758 Q 7 1 0
C O M GND I C 7 0 2 1 C o M M o N
ADM3101E VCC TXD_COM DC SWITCH
RS-232C 2 INH 8 0.1u C P 3 7 RLEDA
3 VE E CH0 7 RXD_COM
DRIVER
4 G ND CH1 6
A 5
GP_BU GP_BU GP_BU
1200 TData
47C 47C Q 7 1 6
2 S K 1 8 3 0 F
MOD
MOD
MICB_S
3.3V DAC_RST
4 . 7 V
OP AMP
R777 I C 7 1 2 SWITCH R 8 1 1 I C 7 1 6 R825
N JM2 107F -Z B
1 8 k 4 7 k 1 0 0 k DAC_EN
1 +INPUT 5 Q714 T C7 5W51F K (F ) CNT_CLK
V + 2S K 1830 F C824 1 oUTA
S S M6L 05 FU- F 47C 2 V- CNT_DT
3 -I N P U T 4 C811 C 8 1 2 R810 C 8 1 8 2 IN- A V D D 8 R917 R826
C7 77 R 7 4 7 C782 C785 oU T P UT oUTB C839
4 7 k 0 . 1 5 u 0 . 0 1 u 1 0 k 4 7 0 p 560p 3 IN+A 7 0 22k
4 7 0 p 4 VSS IN- B 6 1800p
Q 7 0 7 0 .01 5u 0 .01 5u R 77 6 220 k SWITCH I N + B R824
5
DC SWITCH 1 0 0 k 3.3V
R921 OP AMP
4 . 7 k
C784 C840 0.1u
5600p C841 1000p
33C R773
0 R809 R823
R 7 6 4 10k 10k
0
R890
STEERING CURRENT 2 2 0 k
C75 7 R7 46 R782
D 7 1 6 0
1 u 25 10 0 RB706F-40
C795 1
3
1 u 2
MICI Q 7 1 2
CURRENT D725 R791 2S C 4738 (GR )F
STEERING 3 1 AMP PKTBND
2 10k
I C 7 1 4
T C 75W51F K (F )
RB706F-40
REM 47C 47C 1 oUTA 8
VDD C809 D726
R 7 6 6 2 IN-A o U T B 7 R B 7 0 6 F - 4 0
R74 5 18k 3 I N + A 6 5600p 1
0 IN-B 3
4 V SS 5 2 R 7 9 2 AMP
I N + B C808 CURRENT
R 7 4 1 R 7 4 3 C 7 7 4 STEERING 1 0 k Q 7 1 3
0. 047 u 2 S A 1 8 3 2 ( G R ) F
47 k 2 2k 5 6 0 0 p BEEP OP AMP C989
0.1u
WXCTIN_B
R 7 4 2 C 7 7 5
R 7 4 4 SWITCH
1 0k 0 . 0 1 u DTMF 33C 33C
10 k Q709 R808
C 7 9 1 33 WXCTIN_A
3.2V
R7 38 R774 47k 4 7 0 p R805 0 . 7 V
10 k S S M6L0 5F U -F 0.6V R821
R731 6 8 0 k
SPM Q 7 1 5 C833 C835 8 2 0 k C837 R837
SAVE2 SAVE2 6 8 0 k
Q 7 1 8 C847 C825 2SC4617(R) 4700p 4700p 0 . 0 1 u TAB_S
Q 7 1 7 6.8k
I C 7 3 4 AFB 4700p R806 3 9 k 1.3V 2SC4617(R)
AF MUTE C802 R748 2SC4617(R) 4700p
NC1 1 Q715 Q 7 1 7
8 N C2 2 R 9 1 6 R7 63 0. 022 u 5.6k R732 33k
+ IN PU T Q 7 1 8 AMP AMP
7 V + - I NP UT 3 0 1 0 AFM AFM
6 o UT P UT 4 AMP
GN D1
5 G ND2 SWITCH
NJM2 07 0M - ZB
AF POWER AMP
GP_BU
B B B B
AFB_S
10.6V
7.3V VOLTAGE DETECTOR
I C 7 1 3 3.3V 3.3V
R3 119 N04 2A F E
1 VDD 5
2 GND 1 C D
AFB
3 GND 2 4
DoUT . 3 3 V A R V . 3 V 3 A V R
I C 7 1 5 IC718
T K 1 1 2 3 3 C U T A 48 S 033A F
CN716
I C70 5 AVR
NJM2387A
C819
0.1u
X57-784X-XX (A/3) C735 C741 C742 C754 C755 C962 C987
0-11 TH-D72A K NO NO NO NO NO NO NO 33C 33C
2-71 TH-D72E E 1 0 0 0 p 470p 1 0 0 0 p 1 0 0 0 p 10 00 p 1000p 1000p
9600 TData 9600 TData
1200 TData 1200 TData X57-784X-XX(A/3) D729 D731
0-11 TH-D72A K MA2S111-F NO
2-71 TH-D72E E NO MA2S111-F
TX-RX UNIT(X57-784X-XX)(B/3):PTT SECTION
FPC ASSY
PTT
POWER SW MENU A/B
S 7 2 0
R861 47k
R879 R 8 8 6
1 0 0 k 1 0 k
7 CSN Vout7
8 24 R 8 7 6 GND
SCLK Vout6 R888 REF_A SPG
9 SDATA Vin6 23 1 0 0 k 10k CN732
10 I C 7 2 1 22
DVdd A K 2 3 3 0 Vin5 MICG
11 21
Vss Vout5 20 SP
12 Avdd Vuot4 R877 1k B PF A
19 CN718
R878 1k APC&BPFB
CN719
C876 D/A CONVERTER
4.7u 6.3 UP
R847
0
LEFT RIGHT
DET_A
∗ R 9 9 5
DET_B
3 . 3 V
DOWN
TAB R869 ∗ R996
AVREF
100
I C 7 2 2 R 8 7 0
N J M 2 1 1 2 V - Z B
1 . 7 V 1 AoUT 2 2 0 k
DoUT 14
2 A-IN 13 R871 R873 C 8 9 7
D-IN
3 A+IN 12 1 0 k 10k 4 . 7 u
4 V+ D+IN 11
V-
5 B+IN 10
C 8 7 3 R854 R855 6 B-IN C+IN R872 R874 C889 BV
9
4 . 7 u 82k 8 2 k 7 BoUT C-IN 8 8 2 k 8 2 k 4 . 7 u D733
6.3 CoUT 6.3
R853 R864
C882 0 . 1 u S 7 0 9
470k 4 7 0 k ∗
C883 1 0 0 0 p D732 1 2
ANALOG SWITCH
PSW
I C 7 2 2 CN770 D7 2 9 -7 3 3 S 7 1 0
OP AMP REVERSE ∗ D731
CURRENT 4 5
PROTECTOR
GND D730
CN771 MA2S111F S 7 1 1
7 8
+B
CN764
SWITCH
Q720 ∗ D729 S 7 0 8
S S M 3 J 0 5 F U - F * 0
LAMP
3.3V
GP_BU GP_BU
6 . 8 V
REVERSE
AVR CURRENT
Q 7 2 1 PROTECTOR CN713
4.7V 12 A 02C H CLKC
RXD_S TXD_S DC_DET
CN766 CN767 CN742 RST_S RTC
R849 REVERSE
3.3k CN711 CURRENT 3.0V 6 INTRA
C867 PROTECTOR VSS
7 CLKC 5
4 7 0 p 8 oSCoUT INTRB 4
4.7V AVR SDA
I C 7 1 9 Q 7 2 2 X701 9 oSCIN 3
NJ M287 2A F 47 2SC4617(R) 1 4 SCL 2
2 3 10 VDD 32KoUT
1 VIN 5 AVR Q 7 3 0 1
2 GND VoUT 32.768kHz IC717 CN714
R2023T
3 CoNTRoL 4 32K
NoISEBYPASS
D740
CONSTANT SSM6L05FU-F
SWITCH
VOLTAGE
33C
33C
TX-RX UNIT TX-RX SECTION
:
9600 TData 9600 TData
(X57-784X-XX)(C/3)-CN611
RST_S RST_S
D732 R995 R996
1200 TData 1200 TData 1200 TData 1200 TData
MA2S111-F 0 NO
NO NO 0
33M
LAMP
MONI
NO
S 7 2 1 S 7 2 2
CN722
CHG_TH
BATTERY CHARGE
TEMP DET
CN741 CHG_TH
CHG_TH CHG_TH CP 5 4
103 RTS_USB GP_ON
/SUSPEND C P6 4 104 GP_ON 6 4 C_S
/SUSPEND LAMP
KEY_I1 KEY_I1 RST_USB 105 RST_USB C_S 6 3
106 LAMP 6 2 KEY_O2
KEY_I0 KEY_I0 MAIN_WR
107 CHG_TH KEY_O2 6 1 KEY_O3
CN721 KEY_O3 6 0
D739 KEY_O4 KEY_O4 108 BV KEY_O4
BV CP 6 5 109 KEY_O4 5 9 32K_SW
1 S S 3 8 8 F SET SET 32K_SW
PTT PTT PTT 110 PTT 5 8 KEY_I0
D739 R8 4 8 4 7 0 k 111 KEY_I0 5 7
REVERSE AFB_S AFB_S KEY_I1
CURRENT 112 SQ KEY_I1 5 6 KEY_I2
PROTECTOR 5 5
CP 6 6 113 Vbus_DET KEY_I2 CP 5 3 KEY_I3
SQ 114 TNC_WR KEY_I3 5 4
Vbus_DET TNC_WR INTRTC
D734-D738 GPSLED 115 GPSLED IC737 INTRTC 5 3 RTC_SCL
REVERSE 116 5F3651TDFC RTC_SCL 5 2 RTC_SDA
CURRENT CON
CP 6 7 117 TNC_RST RTC_SDA 5 1 R901 MICB_S
PROTECTOR CON M C U MICB_S 5 0 1k
D735 KEY_O4 KEY_O4 STA TNC_RST 118 STA KEY_I4
S9600 119 KEY_I4 4 9 KEY_IT
1 S S 3 8 8 F S9600
S 7 1 4 S717 S 7 2 4 REM 120 REM KEY_IT 4 8 KEY_O0
121 KEY_O0 4 7 KEY_O1
3 A VOX_IN VOX_IN
D736 KEY_O3 KEY_O3 SQA 122 SQA KEY_O1 4 6
LDB 4 5 C P5 2 LDB
1 S S 3 8 8 F SMA 123 SMA
S715 S 7 2 5 SMB 124 SMB RST_S 4 4 RST_S
S 7 1 8 RXD_S
6 B SQB 125 SQB RXD_S 4 3 TXD_S
D737 KEY_O2 KEY_O2 WXCTIN_B 126 TXD_S 4 2
WXCTIN_B C P 5 1 33TNC_S 33TNC_S
1 S S 3 8 8 F 127 AVSS SAVE2 4 1 SAVE2
33TNC_S 4 0
7 S 1 6 S 7 1 9 7 S 6 2 WXCTIN_A 128 WXCTIN_A 33TNC_S
9 C VSS 3 9
D738 KEY_O1 KEY_O1
1 S S 3 8 8 F
S 7 1 2 S713 S723
# D
D734 KEY_O0 KEY_O0
1 S S 3 8 8 F
Q 7 1 9
R834
3.3V
47k
SS M6 L 0 5 F U-F
SWITCH
3.3V
I C 7 3 5
T C 7 S 6 6 F U F
1 IN/oUT
VCC
2 oUT/IN 5
3 GND
CoNT 4 CP75
33TNC 33TNC
ANALOG SWITCH R889 X 7 0 2
0 11.0592MHz
Q 7 2 3 TNC_RST TNC_RST
RT1N441U-T111
SWITCH
C894
1 0 0 0 p
9600 TData 9600 TData 9600 TData 9600 TData
RST_S
RST_S RST_S
BSFT2 BSFT2 BSFT2
33TNC 33TNC
9600
3.3V
C953
1000p R 9 6 5
I C 7 3 2 3 3 0 k
3.3V TA75W393FU-F Q 7 2 9
1200 2SC4617(R) 1 . 8 V
1 o UTA R953 R963 R964
R945 2 I N-A V C C 8 4.7k AMP
oUTB 39k 8 2 k
10k 3 IN+ A 7
4 V EE IN-B 6
R943 10k
IN+B 5
VOLTAGE C958 C966
3 . 3 V DETECTOR COMPARATOR
0.1u 1000p
I C 7 2 6 OP AMP
XC6109C28ANN R932 47k
1 V IN Vo UT R933 47k T C 7 5W 5 1 F K(F )
4
1 o UTA
R956 2 IN-A
2 V SS CD 3 I N + A
3 AMP 1 . 9 V 39k
2SC4617(R) R952 R961 R962 4 V SS
Q 7 2 8
10k 10k 10k
CN743
C959
CN744
R918 CN745 0.01u
4 7 k R 9 3 5 4 7 k C N 7 4 6
R919 47k CN747
I C 7 3 1 1200
EEPROM CN748 TNC_WR
I C 7 3 0 C N 7 4 9
EEPROM C N 7 5 0
PKS_IN
3.3V
CN752 SCLKT
33TNC SRX SRX
SWITCH CN736 IC725
Q 7 2 5
S S M 3 J 0 5 F U - F 3.3V COMPARATOR
AMP
Q 7 2 6
I C 7 2 5 2SC4617(R) BSFT2 BSFT2
TA75S393F-F 3.0V
1 R923 R927 R928
5 IN- 12k 12k C949
V C C VEE 2 10k
C942 Q 7 2 7 0.022u 1 NC
4 IN+ 3 R940 R941 R942
o U T 0.022u 2 NC
12k 12k 15k 3
C 9 2 9 0.1u 2.9V 2SA1774(R) 2 . 4 V NC
AMP SWITCH SIN 4 SIN
SCLKR 5 SCLKR
C928 470p R907 6
BYTE
10k 7 CNVSS
R908 8
NC
STA 1 5 0 k 9 STA
C910 R898
1200 R910 R922 1p 0 TNC_RST 10 RESET
11
2 . 7 k 2.7k XOUT TNC_WR
9600 R912 R914 12 VSS
2.7k 2.7k C911
13 XIN
7p C912 14 VCC1
IC727 VSS2
0.1u 15 NC
C913 16 MCU
NC VCC2
1000p SCLKT 17 SCLKT
3.3V 18 SCLKR
L 7 1 1 CON 19 CON
R905
20 P80
10k 21 NC
22 NC
GPSLED
23 GPSLED
24 NC
37 PLLCNT
VSS7 V S S 4 CTS_TNC 25 CTS_TNC
3 8 24 LOOP
PLLCNT WAY2 P L L L O C K 23
3 9 SPEED N C3
LOOP 4 0 22
L O O P N C2 21
S9600 4 1 S9600 MOUT
4 2 20 C947
VDD7 IC728 VDD4 1000p
4 3 19
TTX VDD8 ASIC VDD3 18 C946
4 4 T X X I1200
SQ 45 17 0.1u 1200 1200
SQIN R1200 16
46 NC10 I9600
47 15 9600 9600
CLKIN R9600
L 7 1 0 4 8 14
V S S 8 V S S 3 13
R 9 8 1 1 0 k
C921 C937
R982
0.1u 0.1u 1 0 k
C N 7 5 3
SCLKR CN755
SIN CLKIN CLKIN R897 R903 5 Q 4
SCLKT G N D
FLAG 1 0 0 1 0 0 6 C L R 3 C N 7 5 7
7 PR Q
PLLLOCK D 2
8 V C C 1
CK CN759
TC7W74FK FLIP-FLOPS CN761
BSFT2 3.3V I C 7 2 4
9600
I C 7 3 3
3.3V
V D D
8
oUTB 7
IN-B
6
I N + B 5
9600
NC NC
75
NC NC 74
NC NC
73
NC NC 72
NC NC 71
P20 C P7 4
70
P21 69
P22 68
P23 67
R939
P24 66 10k
65
NC 64
NC
63
62
NC 61
60 C951
NC 59 1000p
NC 58
NC
57
NC 56
NC
55
NC 54
NC
53
52
51
C N 7 5 4
C N 7 5 6
C N 7 5 8
C N 7 6 0
C N 7 6 2