Icom ID-800H Service Manual page 56

11-2 CODEC BOARD
CODEC BOARD
IC1
S-812C33AMC-C2N-T2
3 4
VOUT NC 3.3V
2
VIN
1 5
GND NC
R400
100k
Q401
4.8V
R401
DTC144EU
5.6k
Q400
2SA1586
Q50
2SA1586
5V
Q51
DTC144EU
R60
10k
C50
0.1
DAFOUT
AGND
ADIN
R52
R58
ERJ2GE-JPW 100
CP50
ADREF
X101
CR-708
R101 1M
IC101
TC7SHU04FU
1 5
2
3 4
J301
D152
MA2S111
TXD_2_C
GND
RXD_2_C
GND
R316 100
FLASH FLASH
CCS
DAFOUT DAFOUT
DETS DETS
RES R315 100 RES
RMUTE RMUTE
BUSY_C BUSY_C
232_RX 232_RX
F_RXD R317 100 F_RXD
232_TX 232_TX
DAFIN DAFIN
TXD R318 100 TXD
DMOD
8V
PTTOUT PTTOUT
5V
PTTIN PTTIN
AGND AGND
R402
CP257
5.6k
3.3V
IC2
R2 R1111N321B
EP308
22
1 5
VDD VOUT
2
GND
3 4
CE NC
3.2V
AEPR
7.9V
8V
3.2V
4.6V
L50
SCLK
1µ
SEN
SO
ATXD
ACLK
ASTB
IC50
R51 AD73311ARS R57
47k
1k
1 20
VOUTP SE
2 19 SI
VOUTN SDI
3 18 ARXD
AVDD1 SDIFS
4 17 SEN
AGND1 SDOFS
5 16 SO
VINP SDO
6 15
VINN MCLK EP307
7 14 SCLK
REFOUT SCLK
8 13 ARES
REFCAP RESET
9 12
C57 0.1 AVDD2 DVDD
10 11
AGND2 DGND
EP303
CP101
IC103
TC7SHU04FU
EP306
1 5
2
3 4
R103
1k
PO1
Q306
TXD
XP4312
1 6
2 5
3 4 EP305
ADIN
R319 10k
C53 R54
Q305 0.1 47k
DAFIN
XP4312
1 6 R53 47k
ADREF
2 5
IC251
3 4
NJM2115V
C252 R251
1
47k
TX:3.3V
RX:0V
Q303
DTC144EU
PTTOUT_C
IC253
NJM13404V
TX:0V
Q302
RX:3.1V
DTC144EU
BUSY
TX:3.1V
RX:0V
Q301
DTC144EU
PTTIN
CP251
C262
R272
220 1
26
GND
27
CODEC_RX_CLK
28
CHAN_RX_CLK
29
CODEC_RX_STRB
30
CHAN_RX_STRB
31
CODEC_RX_DATA
32
CHAN_RX_DATA
33
CODEC_TX_CLK
34
CHAN_TX_CLK
35
GND
36
VDD
37
CODEC_TX_STRB
IC151
38
CHAN_TX_STRB
AMBE-2020
39
VDD
40
GND
41
CODEC_TX_DATA
42
CHAN_TX_DATA
43
NC
44
VDD
45
VDD
46
VDD
47
VDD
48
VDD
49
VDD
50
GND
D151
MA2S728
R151 1k
R223 1k
CP216
EP304 CP256
CP254 CP255
IC252 P86
CMX589AD5 P87
1 24 TXD
XTAL VDD
2 23 RES
XTAL/CLK_RX S/N
R257 3 22
47k CLKDIVA TXC
4 21 P85
CLKDIVB RXC
5 20
RX_HOLD RXD
6 19
RXDCACQ TXD
7 18
PLLACQ TXP
C253 22p 8 17 NMI
RX_PSAVE TXE
9 16
VBIAS TXO
R260 R256 100k
10 15
100k RXFB BT
11 14
RX_SIG_IN DOC1
12 13 FLASH
VSS DOC2
F_RXD
IC254
TC4S66F
5 1
R268 390k
2
4 3 RXD
Q252
DTC144EE
DCEL
R262
22k
RMUTE
R264
100k
3.3V
X201
CR-760
RES
100
NC
99
NC
98
NC
97
NC
96
NC
95
NC
94
NC
93
NC
92 17
NC P36
91 18
NC P37
90 19
VDD P52/WKP2
89 20
GND P53/WKP3
88 21
GND P54/WKP4
87 22
VDD P55/WKP5/ADTRG
86 23
IC204
VAD_EN P10/TMOW
85 24 HD64F3687
CODEC_SEL1 P11/PWM
84 25
CODEC_SLE0 P12
83 26
SLEEP_EN P56/SDA
82 27
SLIP_EN P57/SCL
81 28
BAUD_SEL1 P74/TMRIV
80 29
BAUD_SEL0 P75/TMCIV
79 30
SOFT_EN P76/TMOV
78 31
NC P24
77 32
CHANN_SEL1 P63/FTI0D0
76
VDD
Q251
DTC144EE
Explanatory notes
VOLTAGE LINE
TX LINE
RX LINE
R201 1k
Q201
DTC144EE
IC202
TC7SH08FU
5 1
R301
2
100
4 3
CP300
TX:0V
RX:0V
Q202
R222 DTC144EE
220
RMUTE_C
11 - 5
IC203
S-80928CNMC
1 5
OUT CD
2
VDD
3 4
R209
VSS NC
1k
R221
ERJ2GE-JPW
64 PO1
PB5/AN5
63
PB4/AN4
62 PTTIN PTTIN
PB0/AN0
61 BUSY BUSY
PB1/AN1
60
PB2/AN2
59
PB3/AN3
58 PSAVE
P30
57
P31
56
P32
55
P33
54 TXDT
P17/IRQ3/TRGV
53 RXDT
P16/IRQ2
52 RXCK
P15/IRQ1/TMIB1
51 TXCK
P14/IRQ0
50
P72/TXD_2
49
P71/RXD_2
3.3V
IC351
MAX3226EAE
1 16
READY FORCEOFF
2 15
C1+ VCC
3 14
V+ GND
4 13
C1- T1OUT
5 12
C2+ FORCEON
6 11
C2- T1IN
7 10
V- INVALID
8 9
R1IN R1OUT
R302
100
CP302