Dsp-A Board - Icom IC-756PROII Service Manual

10-2 DSP-A BOARD

J2002 C2515 0.001
C2519 0.001
R2503 100 DSKY
R2510 100 RTDT
R2505 100 MSL1
R2512 100 CTFL
R2507 100 TXS
R2514 100 DSFR
R2509 100 AMS
R2516 100 MDAT
R2511 100 DSRS
DSFW
R2518 100
C2001
to MAIN-A R2513 100 ACKS
0.1
unit J202 R2520 100 MCK
R2515 100 CALS
R2517 100 FMNS C2002
0.1
R2519 100 MODS
R2526 100 DSDR C2003
0.1
R2521 100 DPGI 1
TDI
2
TRST
R2523 4.7k NSQO 3
VDD
M5V_d 4
TDO
C2004
C2035 1 5
0.1 TIMEXP
6
EMU
7
ICSA
R2528 100 AGRS DFL3 8
FLAG3
3R3V_d DFL2 9
FLAG2
DFL1 10
FLAG1
11
DFL0
FLAG0
12
GND
DA0 13
ADDR0
DA1 14
ADDR1
15
VDD
DA2 16
ADDR2
DA3 17
J2001 ADDR3
DA4 18
90dBµ input:158mVp-p ADDR4
19
GND
DA5 20
ADDR5
DA6 21
ADDR6
DRIF DA7 22
ADDR7
DTIF 23
VDD
D5VA DA8 24
ADDR8
DA9 25
L2502 ADDR9
DA10 26
HF50ACC322513-B ADDR10
27
GND
DA11 28
ADDR11
DA12 29
ADDR12
DA13 30
ADDR13
31
VDD
DMAF DA14 32
ADDR14
33
to MAIN-A DA15
ADDR15
unit J201 DTAF 34
GND
AGC DA16 35
ADDR16
36
ADDR17
37
C2005 ADDR18
DRAF 0.1 38
VDD
39
L2503 VDD
HF50ACC322513-B 40
ADDR19
-8V C2006 41
0.1 ADDR20
42
ADDR21
43
L2506 GND
HF50ACC322513-B 44
ADDR22
-5V C2007 45
ADDR23
0.1
FMTL 46
ADDR24
47 MEASUREMENT CONDITIONS
L2504 VDD
48 RX
HF50ACC322513-B GND
8V 49
VDD
50
ADDR25
C2008 51
ADDR26
0.1
52
ADDR27
53
GND
54
MS3
55 TX
MS2
56
MS1
R2001 57
MS0
10k 58
SW
DBMS 59
BMS
60
ADDR28
R2054
100
C2054 0.1
IC2054B IC2054A IC2052
1 14
TC74VHC74FT 13 TC74VHC74FT TC7SET08FU
5
4 12 9 2 5 11 5
6 D Q Q 13 1
D
12 4
8 2
11 8 10 3 6
IC2053B CK Q 9 CK Q
TC74HC02AF IC2053D 3
TC74HC02AF
10 7 4
IC2053C
TC74HC02AF
DLRC
L2001
C2061
D10F-A814AY-101K
3.2V 0.1
1
DDTO 2
IC2061
TC7SET08FU
IC2062
C2062 TC74VHC541FT
0.1
180 20
GND
C2025 VCC
179 19
DATA0 0.1 G2
178 DFLO 18
DATA1 Y1
177 17
DATA2
176 Y2
16
VDD Y3
175 15
DATA3 C2024 Y4
174 DCLK 14
DATA4 0.1 Y5
173
DRFL 13
DATA5 Y6
172 DRXD 12
GND Y7
171 DTFL 11
DATA6 Y8
170 C2023
DATA7 0.1
169
DATA8
168
VDD R2071
167 100
DATA9 C2022
166
DATA10 0.1
165
DATA11 IC2071
164
SC-1387-1
GND
163 1
DATA12 VPP
162 DA16 2
DATA13 A16
161 DA15 3
DATA14 A15
160 DA12 4
VDD A12
159 DA7 5
DATA15 A7
158 DD0 DA6 6
DATA16
A6
157 DD1 DA5 7
DATA17 A5
156 DA4 8
GND A4
155 DD2 DA3 9
DATA18
154 A3
DD3 DA2 10
DATA19 A2
153 DD4 DA1 11
DATA20 A1
152 DA0 12
VDD A0
151
IC2001 DD5 RDT0 13
DATA21 O0
ADSP-21061LKS-160 150 DD6 RDT1 14
DATA22 O1
149 DD7 RDT2 15
DATA23 O2
148 16
GND VSS
147
DATA24 C2021
146
DATA25 0.1
145
DATA26
144
VDD
143
VDD
142
DATA27 C2020
141
DATA28 0.1
140
DATA29
139
GND
138
DATA30 C2019
137
DATA31 0.1
136
DATA32
135
GND
134
VDD
Antenna input 60dBµ 133 L2461
VDD
132 100µH
USB display 14.300MHz
DATA33 C2018 8
SG 14.301MHz 131
DATA34 0.1 ABCK 7
AM display 14.300MHz 130
DATA35 DDAD 6
129
SG 14.300MHz 1kHz 70% MOD
NC DLRC 5
FM display 14.300MHz 128
GND C2017
SG 14.300MHz 1kHz 3.5kHz DEV 127
DATA36 0.1
MIC input 1m Vrms 126
DATA37
MIC VR Center 125
DATA38
Trans Freq 14.300MHz 124
VDD
123
DATA39
122
DATA40
121
DATA41
R2377
1.5k
4
C2378
2
0.1 -
3
+
IC2441A
11 NJM2058M
3R3V_d
M5V_d
IC2051
TC74VHC125FT
1 14 IC2041 IC2352
1G VCC
2 13 TC7SHU04FU TC7SHU04FU
4G
1A
3 12 5 5 5 5
1Y 4A
4 11 4 2 4 2 4 2 4 2
2G 4Y
5 10
2A 3G
IC2042 3 3 3 3
6 9
2Y 3A TC7SH04FU
7 8
GND 3Y 25nS
X2041 CR-568 IC2353 X2351 CR-643
TC7SH04FU
40.8nS
1.6Vp-p R2041 1M R2353 1M
3.3V
M5V_d
R2306
R2309 10k
100
R2308 C2308
4 10k 10
2
1 -
3
+
RX 90dBµ input:200mVp-p IC2301A 8
BA15532F
TX AM : 1.2V R2321 100
FM : 970mV
SSB :174mV R2329
3.7V
150
R2063 1
100
M5V_d 2
C2321 3
0.0068
5 4
4 DSDR R2102 5
100
5 6
DSRS
1
3 4 7
2
IC2101 5V 8
TC7SH32FU 9
3
10
10.42µS
11
1 12
G1 R2092
DSKY
2 100 1 5 ALRC 13
A1
3 4 AVEN ABCK 14
A2 2
4
A3 IC2091
3 IC2092
5 S-80934ANMP-DDY
A4 TC7S02FU
6 MCK ADSD
A5 1 5
7 OUT CD
A6 DSFW 2 Q2321
VDD 2SJ381
8 MDAT 3 4
A7 NC
9 DSFR VSS
A8
10 5V
GND C2328
100
162nS
DPGI
AVEN
32 C2066
VCC
31 DSFR 0.1
A18
30
A17 DSFW
5
29 DA14
A14 1
28 DA13 4 RTDT
A13 DFL2 2
27 DA8
A8
IC2066
26 DA9 3
A9 TC7SET08FU
25 DA11
A11
24 DRD
G
23 DA10
A10 MSL1
22 DBMS
E CALS
21 RDT7
O7 C2065
RDT6
20 IC2072 0.1 IC2348
O6
19 RDT5 TC74VHC541FT TC7SET08FU
O5
18 RDT4 1 20 5 ACKS
O4 G1 VCC 1
17 RDT3 RDT0 2 19 4 CTFL
DFL1
O3 A1 G2 2
RDT1 3 18 DD0
A2 Y1
RDT2 4 17 DD1 3 IC2065
A3 Y2
RDT3 5 16 DD2 TC7SET08FU
A4 Y3
RDT4 6 15 DD3 IC2341A
A5 Y4
RDT5 7 14 DD4 TC74VHC00FT
A6 Y5
RDT6 8 13 DD5
Y6
A7
RDT7 9 12 DD6 C2063 IC2341D
A8 Y7
10 11 DD7 0.1 TC74VHC00FT
GND Y8
12
11
5
13
1
4 NSQO R2361
DFL3 2 220
IC2063
3
TC7SET08FU
IC2461
AGC IC2344A IC2344B
BU9480F
TC74VHC74FT TC74VHC74FT
R2472 R2450
1
VCC OUTR 150k 1k 1 14
2 R2474
BCLK REF
3 100k 6
7 R2362
SDATA GND - 220
4 5 RX SG input 2 5
LRCLK OUTL + D Q
W2471 90dBµ 0.25V
60dBµ 0.6V
IC2471B 3 6
30dBµ 0.95V
M5218AFP CK Q
IC2473 7 4
TC4W53FU
R2481 R2483
3.3k 1.8k
2 8
1
3
4
1 DSRS
IC2471A
FM 380mVp-p DLRC
M5218AFP
AM 384mVp-p ABCK
USB 384mVp-p
DDAD
Q2213 C2478
DTC114EE 1
DRAF
IC2351
AD1855JRS
R2485 100
M5V_d M5V_d
RX FM FIL1:4.4V C2476
0.1
5
14
2 5 1
1 4
3 2 4 2
7 3 FM:4.6V
3 TXS
IC2053A IC2474 IC2475 5VA
TC74HC02AF TC7SH04FU TC7SET08FU D-8A
D-5A
D8VA
IC2291 TX 4.2V
IC2301B TC4W53FU RX 0V C2281
R2304
BA15532F 0.47
10k R2302 C2301
10k 10
6 1 8
7
-
5 2 7
+ W2302 W2301
3 6
4 5
2.2V
IC2281C IC2281D
NJM2058M NJM2058M
IC2321
CS5396-KS
R2323
9 R2253
28 68 8 - 13
VREF AGND 10 14 - 22k
27 + 12
VCOM AINR+ +
26 R2256 R2255
AGND AINR- 22k 22k R2254
25 R2324
AINL+ AGND 4.6V 22k
24 68
AINL- VA
23
ADCTL VL
22
MCLKA LGND R2325 13pin
21 4.7
TSTO1 TSTO2 C2218
20 R2221
0.0022
DACTL MCLKD 150k
19
CAL CS/PON
18 16pin
VD CDIN/DFS C2220
17 6 R2223 R2222 R2219
DGND CCLK/(S/M) 10 W2201 7
- 82k 82k 390k
16 + 5
LRCK SDATA1
15
SCLK SDATA2
IC2211B
M5218AFP
R2327
Q2322
2.2k
2SJ381
4.6V
D8VA
D-5A
5VA
M5V_d
R2346
8 6
100
1 5
CK Q
2 3
D Q
16
5 C2345 IC2342
10 9
1 0.1 TC74VHC4040FT CLK Q1 7 4
4 7
2
11 Q2
R2349 6 IC2281A
RST Q3 IC2343
3 56 5 NJM2058M
Q4 TC7WH74FU
3
Q5
2
Q6 C2425 4
14 4 IC2341C 2
1 Q7 0.22 - 1
3 13 TC74VHC00FT 3
2 Q8 +
9
R2340 12 8
Q9 11
7 56 14 10
Q10
15
Q11
1
Q12
4
6
5
8
IC2341B
TC74VHC00FT
R2344 R2347
100 C2348 C2347 100
0.1 0.1
13
R2363 5
9 220 5
12 1 IC2347
D Q 4 1
2 4 TC74HC390AF
2
11 8 R2364
220 R2365 IC2302
CK Q 3 56
3 TC4W53FU
10 IC2345
IC2346
TC7SH32FU TC7SET08FU
C2346
0.1
C2480
10
R2350
27k
R2356 C2367 R2351
2.2k 1 10k
6
7
5 -
+
IC2371B
R2357 µPC4570G2
2.2k 8
2 1
-
3
+
IC2371A
R2360 4
µPC4570G2
2.2k
RX AM 320mVp-p
USB 340mVp-p
FM 170mVp-p
R2394
TX AM 200mV
100k
780mV
TX 4.2V
USB 100mVp-p
RX 0V
D2373 FM 1Vp-p
MA2S111
5VA
D-8A
D-5A
D8VA
TX FM/AM/SSB:30mVp-p
IC2201
BU4053BCFV
R2242 R2241 R2217 16
220k 10k 470k 12 14
X0 X
13
IC2211A X1
IC2281B 2 15
M5218AFP
NJM2058M Y0 Y
1
R2252 R2244 C2211 Y1
22k 6.8k 6 8 2 5 4 DTAF
7 - 1 - 0.0047 Z0 Z
5 3 3
+ +
Z1
4 6
INH
11
A
10
B
Q2211
9
DTC114EE C2214 R2216 C
10 1.5k
7 8
R2257
1k
Q2202
DTC114EE
Q2201
DTC114EE
D-5A
RX SG
R2580 MOD 88.5Hz ±0.75kHz Dev
R2577 C2573 470k
100
0.1
400mVp-p
C2582
R2571 R2572 100p
R2573 8
82k 82k C2580 R2575 R2581 3 11.3mS
82k 5 120k 100k 1 FMTL
7 0.1 2 +
+ -
6 -
C2571
4 IC2472A
0.22 M5218AFP
IC2472B
TX,SSB
M5218AFP
R2448
10k 100mVp-p
IC2441B IC2441C IC2441D
1mS
NJM2058M NJM2058M NJM2058M
R2447
9 R2453
R2442 R2443 8 10k
6 - 13 6.8k
10k 10k - 7 10 - 14 DMAF
5 + 12
+ +
R2445 R2446
R2444
10k 10k
10k
DTIF
C2311
0.22
C2383 C2387
0.0027 R2388
0.0015 10k
R2387 4
R2385 R2386 9 2
C2395 R2382 R2383 R2384 13 1k 1k 8 10k 6 1
1k 14 10 - 7 -
0.22 1k 1k - + - 3 +
12 + 5 +
11
IC2381C IC2381B IC2381A
IC2381D µPC4574G2
µPC4574G2 µPC4574G2 µPC4574G2
TX FM 2.4Vp-p
2µS
SSB 200mVp-p
4Vp-p
W2401
AM 2V
500mV
IC2401
IC2372 MAX293CWE
BU4053BCFV
1 16
2 15
16
14
12 3 14
X0 X
13 R2403 4 13
X1 15k
2 15 5 12
Y0 Y
1 6 11
Y1 R2402
5 4 15k 7 10
Z0 Z
3 8 9
Z1
6
INH
11
A
10
B
9 R2404
C
22k
7 8
5VA
D-8A
D-5A
D8VA
DSP-A BOARD
10 - 2