Icom ID-31A Service Manual page 37

• LOGIC UNIT (2/2)
IC11
1 5
IN OUT
2
GND
4.63V 3 4 3.31V
EN NC
TLV70033DDCR
CPU3
R284
10k
3.30V
C110 33P
R121 150k
0V IC10
1 10
ADJ2 SW2
2 9
PFMC
MODE/DATA EN2
5VS L1 3 8
VIN GND
LQM2MPN2R2NG0L R115 120k 4 7
FB1 EN1
CLONE R116 120k 5 6
4.66V
DEF_1 SW1
R117 120k
TPS62400DRCR
EP6 L2
LQM2MPN2R2NG0L
BLM18RK102SN1
1.81V
DSPC
J5
NOIS 1 50 HV
2 49
RSSI VCC
3 48
DMOD
DDET 4 47
DAFO 5 46
3VS 6 45
T3C 7 44
PS3 8 43
5VS 9 42
10 41
11 40
MICAMPO
D_AS 12 39
FMMUTE 13 38
LV 14 37
CTCOUT 15 36
16 35
PLLSW 17 34
PLLCK 18 33
PLLDATA 19 32
20 31
PLLSTB
21 30
PPS
UNLK 22 29
DADATA 23 28
DACK 24 27
DALD 25 26
3VS
1.50V
1.66V
R125
10k
C118
R127
MICAMPO
R113
C103 C107
0.1 0.1
680
R118
15k
BLM18RK102SN1 R156
EP12
EP9
MMZ1005S601CT
3.29V
BLM18RK102SN1 NFM18PC104R1C3
EP10 C129 +3.3V_A
1.37V
R281
0
CVDD_1.35V CVDD_1.35V
CHGH
CHGC
TXI-V
BTVIN
3.29V
AFON
SPMUTE
WN
DAFS
CLONE DV:3.29V
FM/FM-N:0V
CTCIN
Q15 Q17
PCON
LDTC144EE LDTC144EE
TTEMP
R3C
BTDETO
BEEP
TXMUTE
VCO_MUTE
VCO_SEL
SQL
INTPTT
DB2S31400
EXTMIC
D_AS
RTONE
R282 R139
0 10k
1.64V
R131
100
R134
1 8
2 7
150k
3 6
4 5
IC13 1.37V
LMV358IPW
0.1
CVDD_1.35V
1.65V
3.28V
C141 0.1
R158
DMO 100
DMOD
1.67V
DAFO
150P IC12 1.50V
1 8
27k
R160
2 7
DMI
3 6
C125 100
4 5
R154
33P
LMV358IPW
5.6k
R145
R132 5.6k
1.50V
100k
C143 C144
1
R149 R151 R157
1k 47k 150k
C130
1
0 3.3V_VDD
3.31V 3.30V
R178
100k
R163
100k
BDX0
EMU0
EMU1
R165 100k
BFSX0
R246 100k
PWDAN
PWADN
FCS
CP33
DSP_REQ
CP06S
DSP_PD
D25
DSP_RESET
BDR1
BDX1
BCLKX1
BFSX1
DSP_SO
R171
47k
R248 47k
100k
R249 47k
R179
R250 47k
100k R172
R173 100k
MMZ1005S601CT
3.29V
SCL SDA
R256
0
IC15
C155
1 16
VCOM VOUTR
2 15
2.2
VINR VOUTL
3 14
VINL
C156 PDDA
4 13
GND
PDAD
1 5 12
VCC BCK
6 11
R283 DEM0 SYSCK
7 10
DEM1 LRCK
8 9
1k DOUT DIN
PCM3008T
C521
4.7
1.70V
IC16
R166
1
15k MICAMPO
COM VCC
2
INH CH0
IC14 3
VEE CH1
1 14 4
GAIN1 IN GND A
2 13
GAIN2 GAINSW
1 3 12 C161 0.1 TC7W53FK
DET INT
4 11 R174 10k 3.27V
OUT SENSE
5 10
C162 1
BUFFIN VREF
6 9
BUFFGAIN V+
7 8
BUFFOUT GND
NJM2783V
1.70V
R188
100k
R187
0
CLKOUT CLKOUT
GPIO13
M2
L3 3.30V
K3
M1
K2
J4
J3
J1
H5
H4
H1
G4
G2
GPIO8
yobi3
G5
C13
B14
C14
E11
D12
D13
D14
E12
F10
IC18 G3
TMS320VC5509AZHH H3
K1
P5
P7
DSP
M8
K9
N3
P3
L4
N4
P4
L5
N5
L6
M6
P6 DSP_DEMP
K6 DSP_REMP
K7 DSP_AFC2
M7 DSP_AFC1
L7
H11
DB2S31400
D27
XF
CLK12
yobi3
10k *R202 yobi4
MMZ1005S601CT
3.30V
R204 EP19
C179 47
5P
R192
PWDAN
PWADN 1.54V
IC17 5 2.2k
BCLKX1 4
C175
1
BFSX1 3
0.1 C183
BDX1 3
NJM2711F 2 OUT VCC
2
0.1 GND VCONT
1.60V
CR-914
1.64V
1.62V
C173
1
8
7
6
5
R184 L1SS400
R207
330k D26
100k
C180
0.0012
3.29V
*: Refer to the PARTS LIST for the value and name of component.
11 - 2
DSP_ TRST
EMU0
EMU1
RDATA
DSP_RESET
3.31V
IC20
1 8
FCS
VCC
CS
BDR0 2 7
D0(DQ1) NC(DQ3)
yobi4
3 6
WP (DQ2) CLK
4 5
BER
VSS DI(DQ0)
BCLKX0 EN25Q40
BDX0
FCS
CP42 CP06S
BDR0
CP43 CP06S
BCLKX0
BDX0
CP45 CP06S
CP46 CP06S
R214
100k R223
100k
CP38
XF
CP06S
CP40
CLKOUT
CP06S
GPIO13
GPIO8
DCSFT
CP06S
CP36
CP37
CP06S
3.31V
MMZ1005S601CT
3.3V_VDD
X3
4
1
Q19
LDTA144EE
EM6022P
MC1
R218 R277
C196 C202 R237 VC040205X150
0 4.7k 1
1 0
R232 LDTC144TE
10k
R228
Q21
2.2k
Q20
2SA1832