8 - 1
8 - 1
1
2
3
CN301
3P/3.95
+
AC AC -
DB301
KBL1010G
C3040
4700uF/35V
C3037
4700uF/35V
C3032
220/35V
~16.8V-1
~16.8V-2
Vi
Vo
Gnd
IC302
7812
F301
F302
+12V
F6.3AL250V
F6.3AL250V
SL-IN
Q310
BC817B
SUR-MUTE
Q306
BUK7535-55A
Q303
BC857B
Q305
BC857B
R320
10k
R317
47K
R319
4.7K
R322
10k
-Vref
R316
680
R318
10K
R315
330
Q304
BC847B
R321
2.7K
+Vref
STABY
SW-IN
CEN-IN
FR-IN
FL-IN
SR-IN
STABY
MUTE
SUR-MUTE
+12V
+Vcc
-Vcc
DZ303
BZX79-B22V
DZ302
BZX79-B22V
R314
680
R313
330
R311
10K
R309
47K
R310
4.7K
Q301
BC817B
Q302
772
R308
47 5W
L301
JRH0349
L307
JRH0349
R312
47K
C3028
22UF/16v
C3031
220UF/16v
C3036
104P
C3029
473P
Q307
BUK7535-55A
R337
2.2K
R305
22
Q308
BC817B
MUTE
VSSA2
1
VDDA2
3
VSSD
24
STAB
L
18
PROT
13
SUB/VSSD
19
VDDP2
23
VSSP2
20
BOOT2
22
OUT2
21
OUT1
16
BOOT1
15
VSSP1
17
VDDP1
14
MODE
6
OSC
7
VSSA1
12
VDDA1
10
IN1+
8
IN1-
9
SGND1
11
SGND2
2
1N2+
5
IN2-
4
IC301
TDA8920
C3001
104
C3004
104
C344
104
C347
104/100V
C3060
104
C338
104
C341
104
VssA1 VddA1
Vddp1
C367
153
C392
334(M)
C395
104
R333
22
C362
153
C370
684(M)
C376
104
R340
22
SW-OUT
CEN-OUT
C355
220P
C387
474
C381
474
R325
5.6K
R350
5.6K
L309
22uH
L304
47uH
C373
104
C361
104
C398
153
C3007
224
C389
104/100V
C383
220P
R351
5.6K
R328
5.6K
C353
474
C359
474
SW-IN
CEN-IN
R362
1K
1
2
3
4
CN303
2.0/4P
C304
102
C301
102
C307
102
C3038
102
C3041
102
C313
102
C308
102
C3033
102
R302
2.2K
C3045
102
C3046
102
Q309
BC817B
R366
100
R363
4.7K
SUR-MUTE
R336
10
R342
10
C332
220P
C335
220P
C3017
220P
C3020
220P
Vddp1
Vssp1
Vssp1
Vddp1
-Vcc
+Vcc
C3014
470uf/35v
C3010
470uf/35v
C326
47uf/63v
C317
104
C323
104
R354
10
R349 10
+Vcc
-Vcc
C3025
47uf/35v
C320
47uf/35v
Vssp
1
L310
JRH0349
L305
JRH0349
VSSA2
1
VDDA2
3
VSSD
24
STAB
L
18
PROT
13
SUB/VSSD
19
VDDP2
23
VSSP2
20
BOOT2
22
OUT2
21
OUT1
16
BOOT1
15
VSSP1
17
VDDP1
14
MODE
6
OSC
7
VSSA1
12
VDDA1
10
IN1+
8
IN1-
9
SGND1
11
SGND2
2
1N2+
5
IN2-
4
IC303
TDA8922BTH
C3003
104
C3006
104
C346
104
C349
104/100V
C351
104
C340
104
C343
104
VssA2 VddA2
Vddp2
C369
153
C372
334(M)
C378
104
R338
22
C365
153
C394
334(M)
C397
104
R331
22
SL-OUT
SR-OUT
C357
220P
C380
474
C358
474
R324
5.6K
R307
5.6K
L302
47uH
L313
47uH
C375
104
C366
104
C3044
153
C3009
224
C391
104/100V
C385
220P
R326
5.6K
R355
5.6K
C352
474
C386
474
SL-IN
SR-IN
1
2
3
4
CN305
4p/2.0
C303
102
C306
102
C311
102
C316
102
C3042
102
C315
102
C312
102
C3035
102
C3049
102
C3050
102
R334
10
R341
10
C334
220P
C337
220P
C3019
220P
C3022
220P
Vddp2
Vssp2
Vssp2
Vddp2
C3016
470uf/35v
C3013
470uf/35v
C328
47uf/63v
C319
104
C325
104
R352
10
R347
10
+Vcc
-Vcc
C3027
47uf/35v
C322
47uf/35v
Vssp
2
L311
JRH0349
L306
JRH0349
VSSA2
1
VDDA2
3
VSSD
24
STAB
L
18
PROT
13
SUB/
VSSD
19
VDDP2
23
VSSP2
20
BOOT2
22
OUT2
21
OUT1
16
BOOT1
15
VSSP1
17
VDDP1
14
MODE
6
OSC
7
VSSA1
12
VDDA1
10
IN1+
8
IN1-
9
SGND1
11
SGND2
2
1N2+
5
IN2-
4
IC304
TDA8922BTH
C3002
104
C3005
104
C345
104
C348
104/100V
C350
104
C339
104
C342
104
VssA3
VddA3
Vddp3
C368
153
C393
334(M)
C377
104
R339
22
C363
153
C371
334(M)
C396
104
R332
22
FL-OUT
FR-OUT
C356
220P
C354
474
C382
474
R330
5.6K
R327
5.6K
L312
47uH
L303
47uH
C374
104
C364
104
C399
153
C3008
224
C390
104/100V
C384
220P
R329
5.6K
R323
5.6K
C388
474
C360
474
FL-IN
FR-IN
1
2
3
4
CN304
4p/2.0
C302
102
C305
102
C309
102
C3039
102
C3043
102
C314
102
C310
102
C3034
102
C3048
102
C3047
102
R335
10
R343
10
C333
220P
C336
220P
C3018
220P
C3021
220P
Vddp3
Vssp3
Vssp3
Vddp3
C3015
470uf/35V
C3012
470uf/35v
C327
47uf/63v
C318
104
C324
104
R353
10
R348
10
+Vcc
-Vcc
C3026
47uf/35v
C321
47uf/35v
Vssp3
C379
47UF/16V
R303
220
R301
1K
Q1
1
Q1
2
C1
3
R1
4
D1
5
S1
6
VSS
7
S2
8
D2
9
R2
10
C2
11
Q2
12
Q2
13
VDD
14
IC306
HEF4013T
I1
1
O1
2
I2
3
O2
4
I3
5
O3
6
GND
7
O4
8
I4
9
O5
10
I5
11
O6
12
I6
13
Vcc
14
IC305
PC74HCU04D
Q311
BC847B
Q312
BC857B
R356
1K
R365
6.8K
R367
100K
R357
10K
R364
1M
R359
10K
R360
100K
R358
100K
C3059
104
C3058
100p
C3054
100P
C3051
104
C3052
102
C3053
470
C3056
100P
C3011
33pf
C3057
100P
DZ301
5.6V
+5V
XT301
700K
XT302
600K
R361
22
CLOCK
CLOCK
CLOCK
1
2
3
CN306
3P/2.0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN302
15P/2.0
FERQ HOP
R368
2.2K
C3062
100UF/16V
C3061
104
DZ304
5.6V
+Vcc
PD1
300KHZ 350KHZ
R375
47K
R374
47K
R370
47K
R371
47K
R372
47K
R373
47K
C3064
104
C3065
104
L314
10UH
C3066
104
R378
5.6K
R376
5.6K
R377
5.6K
!
!
-28v
+28v
GND
PD1
PD2
1
2
3
1
2
3
1
2
3
4
~16.8V
~16.8V
0
~16.5V
~16.5V
~5.5V
~5.5V
~21V
~21V
0
!
AC IN
220V
!
C3067
C1
C330
104
C329
104
C331
104
C3069
104
C3068
104
CIRCUIT DIAGRAM - AMP BOARD
Summary of Contents for MCD705 series
Page 2: ...1 1 HANDLING CHIP COMPONENTS ...
Page 6: ...3 1 CONNECTION AND CONTROLS ...
Page 7: ...3 2 CONNECTION AND CONTROLS ...
Page 8: ...3 3 CONNECTION AND CONTROLS ...
Page 9: ...3 4 4 CONNECTION AND CONTROLS ...
Page 12: ...5 1 5 1 SOFTWARE VERSION AND UPGRADING ...
Page 14: ...5 3 5 3 SET WIRING DIAGRAM ...
Page 16: ...6 2 6 2 LAYOUT DIAGRAM VFD BOARD ...
Page 18: ...7 2 7 2 LAYOUT DIAGRAM TUNER BOARD LAYOUT DIAGRAM AMP BOX PCB ASSY ...
Page 20: ...8 2 8 2 LAYOUT DIAGRAM AMP BOARD ...
Page 22: ...9 2 9 2 LAYOUT DIAGRAM CPU BOARD ...