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
COM GND
3
CTRL
NJU7772F33
VCC
R602
HV
47k
DC POWER Q512
TPC6111
IC801
1 16
IOSTBO
STR V+
2 15
SDATAO
D OE
SCKO 3 14
CLK Q5
RVSHIF 4 13
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
IOSTBO 1 16
STR V+
2 15
D OE
SCKO 3 14
CLK Q5
MVSPASS 4 13
Q1 Q6
HSPC 5 12
Q2 Q7
IMICS 6 11
Q3 Q8
7 10
EMICS
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
All manuals and user guides at all-guides.com
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
CH70DET 4
I/O2
CH70DS 5
C913 CONT2
MNCOUTSO 6
CONT3
7
VSS
0.1
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
NC
R707
100
R703 R704 C703
56k 56k 0.01
IC514
Q511
R601
PONO 8
C704
9
100k
10
LDTC144EE 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
3
5
VCC
7
L5V
9
MNCPASSO EVDATAO
11
MNCOUTSO MIC-G
13
MIC-IN
15
PONO
17
COMRXD
19
COMTXD
21
ICF3
23
AISRXDI PTTCI
25
DSCDEC CMICAFSO
27
WXDEC SCCKO
29
RVSO SCDATAO
31
AISCO SCSTBO
33
NOISEV SCRMOPTI
35
MRSSIV NCRESETBO
37
IOSTBO
39
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
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 8 7
VSS I/O3 VSS I/O3
TC74VHC4066AFK TC74VHC4066AFK
R582
10
R571
100k
3V
R627
22k
R623 R624 R625 R628
82k 82k 68k 27k
R774
IC513
100k
8 7
9 6
R775
7 10 5
11 4
6
470k
5 12 3
4 13 A 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
2
4
HV
6
8
10 C741
BEEPO
12
PAINMO
14 0.1
PASTBYO
16
AFINMO
18
EVCKO
20
C747 R741
NCSCK
22
NCSDATA
24 0.22 22k
RPLAYSO
26
RNCPASSO
28
RRECSO
30
NCSYSRDYI
32
T5VSO
34 C752
NCPDNBO PAVOL
36
TXMSO
38 0.1
40
IC702
C742
1 8
VOL1
VIN1 VIN2 R757
2 7
0.1 VOUT1 VOUT2
3 6
GND VCC
EVDATAO 4 5 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
C520
2.2
IC502
14 1 14
VDD I/O1 VDD
13 2 13
REXTMO
O/I1 CONT1
12 ICEXTS 3 12
CONT4
11 4 11
I/O2 I/O4
10 EMICS 5 10
CONT2 O/I4
9 6 9
CONT3 O/I3
8 7 8
VSS I/O3
TC74VHC4066AFK
R534
2.7k
C891
4.7
IC881
1
R626 R630 C651 R635
2
3
1k 330k 0.01 1.8k
4
LMV358IPW
R633
470k
R650
IC882
470k
1
I/O1 VDD
2
O/I1 CONT1
3
C893 O/I2 CONT4
4
I/O2 I/O4
5
R648 C663 1 CONT2 O/I4
6
CONT3 O/I3
7
VSS I/O3
10k 0.1
TC74VHC4066AFK
VBIAS
HV
R766 R765
1
1
VBIAS IC701 LA4628
IC706 C749
5
1
0.22 EP701
4 MMZ1005S601CT
3
LMV321IDCK
2
C748
R761
680P
R742 R746 R740 C753 2.7
R762
33k 100k 1M 0.22
5
2.7
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
PTTCI
R512
2.7
MICG
R513
ICF3
2.7 R514
COMRXD
2.7 R515
COMTXD
2.7
EZJP0V080DA
R516
Q31
2SK880
1M
LVTX
Tx CH16: 1.7 V
Rx: 1.7 V
5V
8
R886 R887
7
6
47k
5
1M
J7
14 13
12 11
10 9
8 7
R894
SCSTBO
6 5
SCDATAO
4 3
10k
SCCKO
2 1
14
13
C894
12
11
0.0039
10
9
8
LMV321IDCK
IC705
5
1
4
R792 C797
3
2 4.7k 0.1
R793
220k C798
220P
RL1
Q702
LDTC114EE
EP703
C772 EP705
EP704
0.1 EP706
C773
0.1
EP707
J3
PA+
1
PA-
2
SP+
3
EP708 SP-
4