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 D
0.001
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
220 C504
0.1
ACQ
DCEL
DV:3.25V
UNR9213G0
FM:0V Q503
R516
DVC
10K
C517
0.1
SI
SEN
SO
MMZ1005Y102CT
SCLK
AMBERES EP505
C520
47P
MMZ1005Y102C T
EP508 SN74LVC1G04DCK
I C505
1
R530 R531 NC VCC
2
A
3
100
1k GND
C530
C531
R532
0.1
0.1
100K
X501
C534
C532
4 3 Q 505
VCC OUT
1 2 2SC4738
0.001
GND GND 0.001
CR-876
C535
R533
0.1
220
DV:3.30V
FM:0V
FM,DV:4.38V
Q507
DVC 1
2
C547
0.001
R608
+5V 34
0
R537
XP1501
4.7K
C548
2.2
4.99V
4.52V
I C507
7.38V XC6202P502PR
I C508
R538
1
VCC
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
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EP501
R504
100K
I C501
R506
100
0
1 24
100k
C505 XTAL VDD
2 23
R505
0.1 XTAL/CLK_RX S/N
3 22
CLKDIVA TXC
I C500 C506 4 21
R510
CLKDIVB RXC
8 5 20
VCC RX_HOLD RXD
7 6 19
PRE RXDCACQ TXD
6 7 18
CLR PLLACQ TXP
5 C507 22P 8 17
Q RX_PSAVE TXE
9 16
VBIAS TXO
0.001 R511
10 15
RXFB BT
11 14
100K
RX_SIG_IN DOC1
12 13
VSS DOC2
CP500
UNR9213G0
CMX589AD5
CP10S
C508
C511
1 0.1
Q 501
C509
R512
0.001
100K
R517
10K
2SA1832
Q504
DV:4.62V
10
FM:0.37V
R518
EP506
C521
MMZ1005Y102CT
MMZ1005Y102C T
EP504 10
IC503
R519
20 1
SE VOUTP
47K 19 2
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
C518 C523
C347
C519
0.1 AD73311ARSZ 0.1 0.001
R527
C524 680
0.022
2.2
C526
R528
C321
10
1k 0.1 R327
1M
R534
C538
0.1
330
5 0.1
C537
4
Y
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
D500 NC
65
MA2S7280G GND
64
VDD
63 AMBE-2020
GND
62
IC506
NC
61
C546 NC
60
2SA1832
47P NC
59
Q506 C550
NC
5 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
C544
NC C556
0.1
C555 C558 0.1 0.1
0.1
1 10
CP550 MP500 MP510
SHORTLAND OG-321610G OG-321610G
MMZ1005Y102CT
R347
EP502
100K
EP503
CP551
C510
MMZ1005Y102C T
0.1
CP06S
CP552
CP06S
R515
I C502
R513 22K
0.027 1 5
C516
C512 2
0.0022
0.1
4 R514 Q306
3 C515
390K
1 5
47K
C513 C324
TC7S66FU
C327
0.001
0.027
2 0.068
C328
3 4
Q502
C514
UNR9213G0
0.001
XP1213
C322
R520
C326
0.056
100K R521 R522 C528 0.001 C325
47K 1
470K 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
C312
C317 R316
DET I NPUT
2 3
GND 0.1 0.1
C319 R326 1.5K
4
VCC OUTPUT
1 5
0.1 180K R323
C320 I C300
0
0.01 R318
R317
68K
3.9K
1
UNR9213G0 C313
C539
Q305
R319
0.1
10K
R325 C318
47K
R320
15K
0.001
R322
4.7K
C314
C316
C315
0.1
0.01 0.0033
1
GND
R321
2
NC
680
3
NC
4
NC R409 C409
5
NC
6
10K 0.1
NC
7
NC
8 R408
VDD
1.5K
9
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
NC 0.1
22
NC
23
VDD
24 7.25V
ENCODER_EN
25
GND R415
18
R400
C400 C401
0.001 R401
0.001
1.5
4.7K
R402
R404
27K
DV:0V R403
C403 C404
FM:3.23V 1M
0.001 0.001
R350 R351
C330 100
15K
0.001
8
VCC
7
R349 CH0
0.01
R346 6
15K R348 C333 1
CH1
100K
220K 22 5
C331 C343
C332 A
1 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
R330
470
R329 2.2K
C335
150K LMV324IPW
C340
R331
R342 0.033
390P
2.2K
C329
1 2.7K
R334
180P
68K
R333 R335
C341
82K 39K R343
0.018 1.5K
C334
R339
0.0027 R336
82K
39K
C336
0.068
10
C337
R338
10K
Q309
UNR9213G0
R337
39K
UNR9113G0
R310
R311 Q302
TC7W53FK
3.3K 100
IC301
C304
R315 C308 C305
8 1 R312 0.00 1
10 0.01
VCC COM
7 2 82K
CH0 INH
0
6 3 M C300
CH1 VEE C309
R307 C306
5 4
A GND
0.1 1
4.7K
Q 304
C307
C311
2SC4738 0.001 EM6022P
0.1 R305
33K
D300
C310
R314
10 1k AVR-M1005C080M T
R306
Q301
1k
UNR9213G0
Q303
R308
4 3
1.8K
2
R309
5 1
1.8K
XP1215
22K C423
0.1
R410
I C400
C416
1 10
NC POUT
2 9
VCC PWGND 330
3 8 C417
NC PREGND R416
0.001
4 7
VIN PHASE R413
5 6
1k
RIPPLE NF 10
R412
TA7368FG
33
C422
C415
C412
47P
R414
10 MSVA 0.047
1k
C414
100
C413
2SB1201
0.1
18
C408
Q 400
0.001
Q401
XP1501
R407
Q402
20K
2SA1588
3.20V 3.30V
R405
C405 C421
1k
1
2.2 R406
22K
10 - 2
D ICK
40
DIUD
39
I C303 R SSI
38
1
MO D NOISE
COM 37
2
I OSTB1 R602 1k
INH 36
3
D ASTB1 R603 1k
VEE 35
4
BATT
GND 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
R340
CTCOUT PLLSTB R601
13
UNLK 1k
3.9K
12
PPS
C338 11
0.033
10
+5V
9
+3V
8
DTCS +5.5V
7
AFO
6
INTSP
C339
5
0.001 EXTMIC
4
3
VOLOUT
2
1
RTONE
J600
DAFOUT R300
470
R304
M ICC 2.2K
C300
C301
R301
1
0.001
10K
R302
Q300
1k
2SA1832
C302
PTT
0.001
R352
1k
I NTPTT C303 R303
220K
0.047
C603
0.001
MIC1
MIC2
MUT E
VOLOUT
AFO
CP400
Q404
RSR025N03
C418
To the internal speaker
0.00 1
Q403
CP401
RSR025N03
*; Refer to "PARTS LIST."