Icom IC-80AD Service Manual page 46

LOGIC UNIT (2/2)
MMZ1005Y102CT
EP500
MMZ1005Y102C T
R501
1k
C500
0.1
R502
1
CLK
2
100K
0.001 D
X500
3
C501 C503
Q
4 3 4
VCC OUT GND
1 2 Q 500
GND GND 0.001
2SC4738
A
SN74LVC2G74DCTR
CR-877
R503
C504
220
0.1
ACQ
DCEL
R517
DV:3.25V
UNR9213G0
FM:0V Q503
R516
DVC
10K
C517
0.1
SI
SEN
SO
MMZ1005Y102CT
SCLK
AMBERES EP505
C520
C518
47P
MMZ1005Y102C T
SN74LVC1G04DCK
EP508
I C505
1
R531
R530 NC VCC
2
A
3
100
1k GND Y
C530
C531
R532
0.1
0.1
100K
X501
C534
C532
4 3
Q 505
VCC OUT
1 2
2SC4738
GND GND 0.001 0.001
CR-876
C535
R533
0.1
220
DV:3.30V
FM:0V
FM,DV:4.38V
2SA1832
Q507
DVC 1 5
C547 2
0.001
R608
+5V 34
0
R537
XP1501
4.7K
C548
2.2
4.99V
I C507 4.52V
7.38V XC6202P502PR
I C508
R538
VCC 1
I O VIN VOUT
2
22 VSS
G C554
3
C551 C553
C552 CE
C557
0.47 1 1
1
22
XC6204B332M
AMBEC
R539 R540
47K 100K
EP501 MMZ1005Y102CT
R504
100K
R506 I C501
100
0
100k 1 24
C505 XTAL VDD
R505 2 23
0.1
XTAL/CLK_RX S/N
3 22
CLKDIVA TXC
C506
I C500 R510 4 21
CLKDIVB RXC
8 5 20
VCC RX_HOLD RXD
7 6 19
PRE RXDCACQ TXD
6 7 18
CLR PLLACQ TXP
5 17
C507 22P 8
Q RX_PSAVE TXE
9 16
VBIAS TXO
0.001 R511
10 15
RXFB BT
100K 11 14
RX_SIG_IN DOC1
12 13
VSS DOC2
CP500
UNR9213G0 CMX589AD5
CP10S
C508
C511
1
Q 501 0.1
C509
R512
0.001
100K
10K
2SA1832
Q504 DV:4.62V
10
FM:0.37V
R518
EP506
C521
MMZ1005Y102CT
MMZ1005Y102C T
EP504 10
IC503
R519
20 1
SE VOUTP
19 2
47K
SDI VOUTN
18 3
SDIFS AVDD1
17 4
SDOF S AGND1
16 5
SDO VINP
15 6
MCLK VINN
14 7 0.1
SCLK REFOUT
C522
13 8
RESET REFCAP C525
12 9
0.047
DVDD AVDD2
11 10
DGND AGND2
C523 C347
C519
0.1 0.1
AD73311ARSZ 0.001
R527
C524
680
0.022
2.2
R528 C526
C321
10
1k 0.1 R327
C320
1M
0.01
R534
C538 C539
0.1
330
0.1 0.1
5 C537
4
C536
R535
0.1
1k
CP501
CP10S
75
CHANN_SEL0
74
RATE_SEL4
73
RATE_SEL3
72
RATE_SEL2
71
RATE_SEL1
70
RATE_SEL0
69
RESETN
68
X2/CLKIN
R536 67
X1
47K 66
NC
D500
65
MA2S7280G GND
64
VDD
63
AMBE-2020
GND
62
IC506
NC
61
C546 NC
60
47P NC
59
Q506 C550
NC
0.001 58
NC
57
VDD
C545 56
GND
55
NC
54
0.1 VDD
53
GND
52
GND
51
CLOCK_MODE
C549
0.001
DV:3.29V
FM:0.263V
EP509
MMZ1005Y102C T
5
C543 C542
4
C556 C544
NC
0.1
C555 C558 0.1 0.1
0.1
1 10
CP550 MP500 MP510
SHORTLAND OG-321610G OG-321610G
R350
R347
15K
EP502
100K
EP503
CP551
C510
MMZ1005Y102C T
0.1
CP06S
R349
15K
CP552
C331
1
CP06S
R515
I C502
22K
R513
0.027 1 5
C516
C512 2
0.1 0.0022
3 4 R514 Q306
390K C515
1 5
47K
C513 TC7S66FU C324
C327 R330
0.001
0.027 2 0.068
470
C328 R331
3 4
Q502
C514
UNR9213G0 1 2.7K
0.001
XP1213
C322
R520
C326
0.056
100K R522 C528
R521 0.001 C325
470K 47K 1 0.047
R328
15K
MMZ1005Y102C T
EP507
C527
0.1 I C504
NJM2115V
100
R525
47K 0.1
R524
R523 C529
R526
47K
100K
TX:3.24V
RX:0.23V
AN6123MS
C317 R316 C312
8
DET I NPUT VCC
2 3 7
GND 0.1 CH0
C319 R326 0.1 1.5K
4 6
VCC OUTPUT CH1
1 5 5
0.1 180K R323 A
I C300
0
R318
R317
68K C311
3.9K 0.1
1
UNR9213G0 C313
Q305
R319
10K
R325 C318
47K R320
15K
0.001
R322
4.7K
C314
C316 C315
0.01 0.1
0.0033
1
GND
2 R321
NC
680
3
NC
4
NC R409 C409
5
NC
6
10K 0.1
NC
7
NC
R408
8
VDD
9 1.5K
GND
10
R353
GND
11 47K
VDD
12
VDD
C540
13
NC
14
NC 0.1
15
NC
16
NC
17
NC
18
NC
19
NC C541
AF ON:6.44V
20
EPR
21
0.1
NC
22
NC
23
VDD
24 7.25V
ENCODER_EN
25
GND R415
18
R400
18
C400
C401
R401
0.001
0.001
1.5
Q402
2SA1588
4.7K
R402
3.20V
R404
27K
DV:0V R403 C404
C403
C405
1M
FM:3.23V 0.001 0.001
1
R351
C330 100
0.001
I C303
8 1
VCC COM
7 2
0.01 CH0 INH
R346
R348 C333 1 6 3
100K CH1 VEE
220K 22
C343 5 4
C332
A GND
R345
100K TC7W53FK
I C302
1 14
C344
2 13
C342
0.001
3 12 0.001
R344
4 11
180K
5 10
6 9
R341
7 8
R329 2.2K
C335
150K LMV324IPW
C340
0.033
390P R342
2.2K
C329
R334
180P
68K
R333 R335
C341 R343
82K 39K
0.018
C334 1.5K
R339 R340
R336
0.0027
82K
39K 3.9K
C338
0.033
C336
0.068
10
C337
R338
10K
Q309
C339
UNR9213G0
R337
0.001
39K
UNR9113G0
R311 R310
Q302
TC7W53FK 100
3.3K
IC301 C304
C308 C305
R315
0.00 1
1 R312 10 0.01
COM
82K
2
INH
0
3
M C300
VEE
C309 R307 C306
4
GND
0.1 1
4.7K
Q 304
C307
2SC4738 EM6022P
0.001
R305
33K
D300
C310 R314
10 1k AVR-M1005C080M T
C603
R306
Q301
1k
UNR9213G0
0.001
Q303
R308
4 3
1.8K
2
R309
5 1
1.8K
XP1215
22K C423
R410 0.1
I C400
C416
1 10
NC POUT
2 9
VCC PWGND 330
3 8 C417
NC PREGND
0.001 R416
4 7
VIN PHASE R413
5 6
10 1k
RIPPLE NF
R412
TA7368FG
33
C422
C412 C415
47P R414
10 MSVA 0.047
1k
C414
100
C413
2SB1201
0.1
C408
Q 400
0.001
Q401
XP1501
R407
20K
3.30V
R405
C421
1k
2.2
R406
22K
10 - 2
D ICK
40
DIUD
39
R SSI
38
MO D NOISE
37
I OSTB1 R602 1k
36
D ASTB1 R603 1k
35
BATT
34
+3CPU
33
VIN
32
CLONE
31
DAFOUT
30
IOEN R606
29
1k
DATA R604
28
CHG 560
27
TX-V
26
D _AS VCC
25
TTEMP
24
HV
23
CTONE
22
RTONE
21
MO D
20
BEEP
19
CK R605 100
18
D ASTB2 R609
17
SQL 100
16
INTPTT
15
IOSTB
14
CTCOUT PLLSTB R601
13
UNLK 1k
12
PPS
11
10
+5V
9
+3V
8
DTCS +5.5V
7
AFO
6
INTSP
5
EXTMIC
4
3
VOLOUT
2
1
RTONE
J600
DAFOUT R300
470
R304
2.2K
M ICC
C300
C301
R301
1
0.001
10K
R302
Q300
1k
2SA1832
C302
PTT
0.001
R352
1k
I NTPTT R303
C303
0.047 220K
MIC1
MIC2
MUT E
VOLOUT
AFO
CP400
Q404
RSR025N03
C418
To the internal speaker
0.00 1
Q403
CP401
RSR025N03
*; Refer to "PARTS LIST."