Dsp Board - Icom IC-756PRO Service Manual

10-2 DSP BOARD

J2002
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
R2518 100 DSFW
C2001
to MAIN R2513 100 ACKS
0.1
unit J202 R2520 100 MCK
R2515 100 CALS
R2517 100 FMNS C2002
0.1
R2519 100 MODS
C2003
R2526 100 DSDR
0.1
R2521 100 DPGI 1
TDI
2
TRST
R2523 4.7k NSQO 3
VDD
4
M5V_d
C2004 TDO
C2035 1 5
0.1 TIMEXP
C2502 0.1 6
EMU
C2503 10 7
ICSA
R2528 100 AGRS DFL3 8
FLAG3
3R3V_d DFL2 9
FLAG2
DFL1 10
FLAG1
DFL0 11
FLAG0
12
GND
DA0 13
ADDR0
DA1 14
ADDR1
15
VDD
DA2 16
ADDR2
DA3 17
ADDR3
J2001
DA4 18
90dBu 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 ADDR10
27
GND
DA11 28
ADDR11
DA12 29
ADDR12
DA13 30
ADDR13
31
VDD
DMAF DA14 32
ADDR14
to MAIN DA15 33
ADDR15
unit J201
DTAF 34
GND
AGC C2005 35
0.1 ADDR16
36
ADDR17
37
ADDR18
DRAF 38
VDD
39
L2503 VDD
40
HF50ACC322513 ADDR19
C2006
-8V 41
0.1 ADDR20
42
ADDR21
43
L2506
GND
HF50ACC322513 44
ADDR22
-5V C2007 45
0.1 ADDR23
FMTL 46
ADDR24
47 MEASUREMENT CONDITIONS
L2504 VDD
HF5CACC322513 48 RX Antenna input 60dBu
GND
8V 49 USB display
VDD
50 SG
ADDR25
C2008 51 AM display
0.1 ADDR26
52 SG
ADDR27
53 FM display
GND
54 SG
MS3
55 TX MIC input
MS2
56 MIC VR
MS1
R2001
57 Trans Freq
10k MS0
58
SW
DBMS 59
BMS
60
ADDR28
C2054
R2054
100 0.1
IC2051
IC2054B IC2054A IC2052 TC74VHC125FT
TC74VHC74FT 13 TC74VHC74FT 1 14 TC7SET08FU 1
5 1G
4 12 9 2 5 11 5 2
6 D Q D Q 13 1 1A
12 4 3
8 2 1Y
IC2053B 11 8 10 3 6 4
CK Q 9 CK Q IC2053D 2G
TC74HC02AF 3 5
TC74HC02AF 2A
10 6
IC2053C 7 4 2Y
7
TC74HC02AF GND
DLRC
L2001
C2061 R2063
3.2V D10F-A814AY-101K
0.1 100
5
1
4
DDTO 2
IC2061
3
TC7SET08FU
IC2062
C2062
TC74VHC541FT
0.1
180 20
GND VCC G1
179 C2025
19
DATA0 0.1 G2 A1
178 DFLO 18
DATA1 Y1 A2
177 17
DATA2 Y2 A3
176 16
VDD Y3 A4
175 15
DATA3 C2024 Y4 A5
174 DCLK 14
DATA4 0.1 Y5 A6
173 DRFL 13
DATA5 A7
Y6
172 DRXD 12
GND Y7 A8
171 DTFL 11
DATA6 Y8 GND
170 C2023
DATA7 0.1
169
DATA8
168
VDD
167
DATA9 C2022
166
DATA10 0.1
165
DATA11
164
GND
163
IC2071
DATA12
162 SC-1371
DATA13
161 1
DA15
DATA14 A15 VCC
160 DA12 2
VDD A12 A14
159 DA7 3
A13
DATA15 A7
158 DD0 DA6 4
DATA16 A6 A8
157 DD1 DA5 5
DATA17 A9
A3
156 DA4 6
GND A4 A11.
155 DD2 DA3 7
DATA18 A3 OE/VPP
154 8
DD3 DA2
DATA19 A2 A10
153 DD4 DA1 9
DATA20 A1 CE/PGM
152 DA0 10
VDD A0 O7
IC2001 151 DD5 RDT0 11
DATA21 O0 O6
ADSP-21061LKS-160 150 DD6 RDT1 12
DATA22 O5
O1
149 DD7 RDT2 13
DATA23 O2 O4
148 14
GND GND O3
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 IC2461
133 L2461 BU948OF
VDD
14.300MHz 132 100uH
DATA33 8
131 C2018
14.301MHz VCC
DATA34 0.1 ABCK 7
14.300MHz 130 BCLK
DATA35 DDAD 6
14.300MHz 1kHz 70% MOD 129 SDATA
NC DLRC 5
14.300MHz 128 LRCLK
GND C2017
14.300MHz 1kHz 3.5kHz DEV 127
DATA36 0.1
1m Vrms 126
DATA37
Center 125
DATA38
124
14.300MHz
VDD
123
DATA39
122
DATA40
121
DATA41
R2377
1.5k
4
C2378 2
- 1
0.1
3
+
IC2441A
11
NJM2058M
3R3V_d
M5V_d
14 IC2041 IC2352
VCC TC7SHU04FU TC7SHU04FU
13
4G
12
4A 5 5 5 5
11 4 2 4 2 4 2 4 2
4Y
10
3G
IC2042 3 3 3 3
9
3A TC7SH04FU
8
3Y 25nS
IC2353
X2041 CR-568 X2351 CR-643
TC7SH04FU
40.8nS
1.6Vp-p R2041 1M R2353 1M
3.3V
M5V_d
R2306
R2309
10k
100 C2308
R2308
10k 10
4 2
1 -
3
+
RX 90dBu input:200mVp-p IC2301A 8
TX(1kHz) AM :780mVp-p uPC4570G2 R2321 68
FM :740mVp-p
SSB :120mVp-p
3.7V
M5V_d
C2321
0.0068
DSDR R2102
100 5
DSRS 1
4
2
5V
3
IC2101 10
TC7SH32FU 10.43uS
11
1 IC2092 12
DSKY TC7S02FU
2 R2092 ALRC 13
5
3 100 1 ABCK 14
4 AVEN
4
2
5 IC2091
3
6 MCK S-80934ANMP-DDY ADSD
7 DSFW 1 5 Q2321
OUT CD
8 MDAT 2 2SJ381
VDD
DSFR
9 3 4
VSS NC
10 5V
C2328
100
162nS
DPGI
AVEN
C2066
0.1
28
27 DA14 5
1
26 DA13 4 RTDT
DFL2
2
25 DA8
24 DA9 IC2066
3
TC7SET08FU
23 DA11
22 DRD
21 DA10
MSL1
20 DBMS
CALS
19 RDT7
C2065
18 RDT6 IC2072 0.1
IC2348
17 RDT5 TC74VHC541FT
TC7SET08FU
5
16 RDT4 1 20 ACKS
G1 VCC 1
15 RDT3 RDT0 2 19 4 CTFL
A1 G2 DFL1 2
RDT1 3 18 DD0
A2 Y1
RDT2 4 17 DD1 3 IC2065
A3 Y2 TC7SET08FU
RDT3 5 16 DD2
A4 Y3
RDT4 6 15 DD3 IC2341A
A5 Y4
RDT5 7 14 DD4 TC74VHC00FT
Y5
A6
RDT6 8 13 DD5
A7 Y6
RDT7 9 12 DD6 IC2341D
Y7 C2063
A8 TC74VHC00FT
10 11 DD7 0.1
GND Y8
12
11
5 13
1
4 NSQO
DFL3 2
IC2063
3
TC7SET08FU
IC2344A IC2344B
AGC
TC74VHC74FT TC74VHC74FT
1 R2472 R2450
OUTR R2474 150k 1k 1 14
2
REF 100k
3 6
GND 7
4 5 RX SG input 2 5
OUTL D Q
90dBu 0.25V
W2471
IC2471B 60dBu 0.6V 6
3
M5218AFP 30dBu 0.95V CK Q
7 4
IC2473
TC4W53FU
R2481 R2483
3.3k 1.8k
2 8
1
3
4
DSRS
IC2471A
M5218AFP FM 380mVp-p DLRC
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
14 5
2 5 1
1 4
3 2 4 2
7 3 FM:4.6V
3 TXS
IC2053A IC2474 IC2475
TC74HC02AF TC7SH04FU TC7SET08FU
IC2291
RX 4.2V
TC4W53FU
IC2301B R2304 TX 0V
uPC4570G2 1k R2302 C2301
1k 10
6 1 8
7
-
5 2 7
+ W2302 W2301
3 6
4 5
2.2V
IC2281C IC2281D
IC2321 NJM2058M NJM2058M
CS5396-KS
R2323 9
1 28 8 13 R2253
68 - 14
VREF AGND + 10 - 22k
2 27 12
VCOM AINR+ +
3 26 R2256 R2255
AGND AINR-
22k 22k R2254
4 25 R2324
AINL+ AGND 4.6V 22k
5 24 68
AINL- VA
6 23
ADCTL VL
7 22
MCLKA LGND R2325 13pin
8 21
4.7 C2218
TSTO1 TSTO2 R2221
9 20 0.0022
DACTL MCLKD 150k
19
CAL CS/PON
18 16pin C2220
VD CDIN/DFS
17 10 6 R2223 R2222 R2219
DGND CCLK/(S/M) W2201 7
16 - 82k 82k 390k
+ 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
C2345
5 IC2342 10 9
0.1 7 4
1 TC74VHC4040FT CLK Q1
4 7
2 Q2
11 6
IC2281A
RST Q3 IC2343
3 5 NJM2058M
Q4 TC7WH74FU
3
Q5
2
Q6 C2425
14 4 IC2341C 2
1 Q7 0.22
3 TC74VHC00FT
13 3
2 Q8
12 9
Q9 8
14 10
7
Q10
15
Q11
1
Q12 4
6
5
8
IC2341B
TC74VHC00FT
R2344
R2347
100 C2348 C2347
100
0.1 0.1 27.6uS
13
5 4.6V
12 9 5
1 IC2347
D Q 4 1
2 4 TC74HC390AF
2
11 8
monitor on
CK Q 3 IC2302
3 TC4W53FU
10
IC2345 IC2346
TC7SH32FU TC7SET08FU
C2346
0.1
C2480
10
R2350
27k
R2356 R2351
2.2k 10k
6
7
5 -
+
IC2371B
R2357 uPC4570G2
2.2k 8
2
- 1
3
+
IC2371A
R2360 4
uPC4570G2
2.2k
200mV
RX AM 320mVp-p TX AM
USB 340mVp-p 780mV
FM 170mVp-p
TX 4.2V
USB 100mVp-p
RX 0V
FM 1Vp-p
TX FM/AM/SSB:30mVp-p
IC2201
BU40538CFV
R2242 R2241 R2217
240k 10k 390k 12 14
X0 X
13
IC2211A
IC2281B X1
M5218AFP 2 15
NJM2058M Y0 Y
1
R2252 R2244 Y1
8 C2211 4 DTAF
22k 5.6k 6 1 2 5
7 - - 0.0047 Z0 Z
5 3 3
+ + Z1
6
4
INH
11
A
10
Q2211 B
9
DTC114EE C
C2214 R2216
10 1.5k
R2257
1k
Q2202
DTC114EE
Q2201
DTC114EE
D-5A
RX
R2577 C2573 C2576
100 0.22 0.22
400mVp-p
R2571 R2572 R2573
R2574 R2575 R2576
10k 10k 10k 11.3mS
5 10k 10k 10k 8
7 3
6 + 1 FMTL
- +
C2571 2
-
0.22
IC2472B IC2472A
4
M5218AFP M5218AFP TX,SSB
R2448
10k 100mVp-p
IC2441D
IC2441B IC2441C
NJM2058M 1mS
NJM2058M NJM2058M
R2447
R2453
R2443 9 8 10k
4 R2442 6 - 13 6.8k
10k - 7 10 - 14 DMAF
1 10k 5 + 12
- + +
+ R2445 R2446
R2444 10k 10k
11
10k
DTIF
C2311
0.22 C2383 C2387
R2388
0.0015 0.0027
10k
R2385 R2386 R2387 4
R2384 9 10k 2
C2395 R2382 R2383 13 1k 1k - 8 6 - 1
0.22 1k 1k 1k 14 10 7 3
- + - +
12 + 5 +
11
IC2381C IC2381A
IC2381D IC2381B
uPC4574G2 uPC4574G2
uPC4574G2 uPC4574G2
TX FM 2.4Vp-p
2uS
SSB 200mVp-p
4Vp-p
W2401
AM 2V
500mV
IC2401
IC2372 MAX293CWE
BU40538CFV
1 16
2 15
12 14 3 14
X0 X
13 R2403 4 13
X1 15k
2 15 5 12
Y0 Y
1 6 11
R2402
Y1 4
5 15k 7 10
Z0 Z
3 8 9
Z1
6
INH
11
A
10
B
9
C R2404
22k
TXS
5VA
D-8A
D-5A
D8VA
DSP BOARD
10 - 2