Icom ic-m506 Service Manual page 42

• MAIN UNIT (2/2)
R914
NCSCK
0
D15
D33
R911
CP26
NCSDATA
10k
R925
NCRESETBO
NCPDNBO
10k
R924
NCSYSRDYI
100
C933
0.1
C934
X901
0.1 CP24
CSTCE8M19G55
C935
0.1
C936
R901
10
10
5.0 V
IC512 KIA7805API
IC511
VCC 5V 1
I O VIN VOUT
2
GND
COM
3
CTRL NC
NJU7772F33
VCC
R602
HV
47k
DC POWER Q512
TPC6111
LDTC144EE
IC801
IOSTBO 1 16
STR V+
SDATAO 2 15
D OE
SCKO 3 14
CLK Q5
4 13
RVSHIF
Q1 Q6
ICEXTS 5 12
Q2 Q7
ICPAS 6 11
Q3 Q8
HMICINS 7 10
Q4 Q'S
8 9
GND QS
R723 MC74HC4094ADTR2G
TEMPV
NTCG16
IC802
1 16
IOSTBO
STR V+
2 15
D OE
SCKO 3 14
CLK Q5
MVSPASS 4 13
Q1 Q6
HSPC 5 12
Q2 Q7
6 11
IMICS
Q3 Q8
EMICS 7 10
Q4 Q'S
8 9
GND QS
MC74HC4094ADTR2G
J2
1 2
HORNO
3 4
RXSPMO
5
6
SCKO
7 8
SDATAO NC1
9 10
REXTMO
11 12
RINTMO
13 14
TDETV
15 16
DSCENC
17 18
UNLKI
19 20
DASTBO
21 22
PLSTBO
23 24
LVTX
25 26
LVRX
27 28
29 30
IC906
1 14
I/O1 VDD
2 13
O/I1 CONT1
3 12
O/I2 CONT4
4 B 11
I/O2 I/O4
5 10
CONT2 O/I4
6 9
CONT3 O/I3
7 C 8
VSS I/O3
TC74VHC4066AFK
C914
A33
1
IC505
R908
RVSOUT 1
I/O1
2
10k O/I1
3
O/I2
4
CH70DET
I/O2
CH70DS 5
C913 CONT2
MNCOUTSO 6
CONT3
7
0.1 VSS
C912
TC74VHC4066AFK
MNCOUT
0.47
MNCIN
C911
MNCPASSO
MDETS
0.47
C910
MICSO
1
IC902
5 1
VOUT VIN
2
VSS
4 3
NC CE
XC6221A332MR
L902
D33
C905
D15
4.7U
R903
10 R905
IC903
L903 2.7
5 1
VOUT VIN
2
4.7U VSS
10k 4 3
NC CD
XC6221A152MR
5V
5 3V
4
R707
100
R703 R704 C703
56k 56k 0.01
IC514
Q511
R601
8
PONO
C704
9
100k
10
100P
11
12
13
14
LMV324IPW
R713 R714 *C713
56k 56k
ICINTS
HL/ATT
MDETS
HORNC
R721
100k
SP-
SP+
CH70DS
RVSOUTS
MVSOUTS
RVSPASS
J1
1 2
3 4
5 6
VCC
7 8
L5V
9 10
MNCPASSO EVDATAO
11 12
MNCOUTSO MIC-G
13 14
MIC-IN
15 16
PONO
17 18
COMRXD
19 20
COMTXD
21 22
ICF3
23 24
AISRXDI PTTCI
25 26
DSCDEC CMICAFSO
27 28
WXDEC SCCKO
29 30
RVSO SCDATAO
31 32
AISCO SCSTBO
33 34
NOISEV SCRMOPTI
35 36
MRSSIV NCRESETBO
37 38
IOSTBO
39 40
10-3
C535
R551 C537 C538 R564 R563
0.22 15k 0.022 0.0047 18k 22k
C539 R560 C532
IC506
0.0047
10k 0.1
8 B C 7
R557
9 6
14 10 5
VDD 220k
13 11 4
CONT1
12 12 3
CONT4 C541
11 13 2
I/O4
R566
10 14 1
O/I4 0.47 R565
9 LMV324IPW
O/I3 3.3k
8
I/O3 1.5k
VBIAS
C560
0.47
IC504 IC503
1 14 1
I/O1 VDD I/O1 VDD
2 13 2
O/I1 CONT1 O/I1 CONT1
3 12 3
O/I2 CONT4 O/I2 CONT4
4 11 4
I/O2 I/O4 I/O2 I/O4
5 10 5
CONT2 O/I4 CONT2 O/I4
6 9 6
CONT3 O/I3 CONT3 O/I3
C 7
7 8
VSS I/O3 VSS I/O3
TC74VHC4066AFK TC74VHC4066AFK
R582
10
R571
100k
3V
R627
22k
R623 R624 R625 R628 R626
82k 82k 68k 27k 1k
R774
IC513
100k
8 7
9 6
R775
7 10 5
6 11 4
470k
5 12 3
A
4 13 2
3 14 1
2
LMV324IPW
1
R636
R784 R637 R638 R640
100k
4.7k 10k 33k 1.5k R647
82k
VBIAS
VCC
SP-
SP+
AFINMO
HV
C741
BEEPO
PAINMO
0.1 IC706
PASTBYO
1
AFINMO
EVCKO
C747 R741
NCSCK 3
NCSDATA
0.22 22k
RPLAYSO
RNCPASSO
RRECSO
NCSYSRDYI
T5VSO
C752
NCPDNBO PAVOL
TXMSO
0.1
IC702
C742
VOL1 1 8
VIN1 VIN2 R757
2 7
0.1 VOUT1 VOUT2
3 6
GND VCC
4 5
EVDATAO 0
DATA CLOCK
EVCKO M61545AFP
R755
10
2SB1143
Q501
R526
1M
VBIAS
R562
1.2k
KTC811U
C521
R528
10 2.2
R529
33k C523 R531
0.22 3.3k
PTTCI
C520
2.2
IC502
14 1 14 ICF3
I/O1 VDD
13 2 13
REXTMO
O/I1 CONT1
12 3 12
ICEXTS COMRXD
CONT4
11 4 11
I/O2 I/O4
10 EMICS 5 10 COMTXD
CONT2 O/I4
9 6 9
CONT3 O/I3
8
7 8
VSS I/O3
TC74VHC4066AFK
2SK880
R534
LVTX
2.7k
C891
4.7
IC881
1 8
R630 C651 R635
2 7
3 6
330k 0.01 1.8k
4 5
LMV358IPW
R633
470k
R650
IC882
470k
1 14
I/O1 VDD
2 13
O/I1 CONT1
3 12
C893 O/I2 CONT4
4 11
I/O2 I/O4
5 10
R648 C663 1 CONT2 O/I4
6 9
CONT3 O/I3
7 8
10k 0.1 VSS I/O3
TC74VHC4066AFK
VBIAS
HV
R766 R765
1
1
VBIAS IC701 LA4628
C749
5
0.22 EP701
4 MMZ1005S601CT
LMV321IDCK
2
C748
R761 C772
680P
R742 R746 R740 C753 2.7 0.1
R762 C773
33k 100k 1M 0.22
5 2.7
0.1
1 IC707
4
C756 R745
3
R763 C782
LMV321IDCK
0.22 22k 2
2.7 0.1
C758 R764 C783
820P 2.7 0.1
R747
27k
*: Refer to the PARTS LIST for the value and name of component.
CMD-VCC
J4
1 2
PTTC COMTXD
3 4
ICF3 COMRXD
5 6
GND GND
7 8
MICG AF/MIC
9 10
R512
2.7
MICG
R513
2.7 R514
2.7 R515
2.7
EZJP0V080DA
R516
Q31
1M
Tx CH16: 1.7 V
Rx: 1.7 V
5V
R886 R887
47k
1M
J7
14 13
12 11
10 9
R894 8 7
SCSTBO
6 5
SCDATAO
10k 4 3
SCCKO
2 1
C894
0.0039
LMV321IDCK
IC705
5
1
4
R792 C797
3
2
4.7k 0.1
R793
220k C798
220P
RL1
Q702
LDTC114EE
EP703
EP705
EP704
EP706
EP707
J3
PA+
1
PA-
2
SP+
3
EP708 SP-
4