BBK MA2000S Service Manual
54321
6
F
CPU5V
VD112
L123
E
C276
471Y1
MA-1000/MA-2000 SUPPLY POWER
1
V+
2
AC
3
AC
V-
DB100
DB104
4
C274
33uF/400V
R256
R257
18K/0.125W
18K/0.125W
R258
R259
18K/0.125W
18K/0.125W
C275
103/1KV
VD110
HER107
D
R261
10K
V118
2N5551
H-GND
H-GND
R252
47K
H-GND
VD125
22V
L122
UT-20 40mH
!
!
H-GND
7
8
5
N125
VIPER22A
D6D
D
D
4
VDD
3
FB
S1S
C277
2
H-GND
10u/35V
H-GND
C319
473/63V
FL100
T1.6A/250V
!
4 2
!
3 1
!
C273
!
104X2
R208
C
1M/0.5W
2
XS3
~220V
1
T1
1
3
5
4
BCK-19-0223
VD111
HER105
!
C278
4.7uF/160V
N126 HS817
!
12
11
10
9
8
7
6
!
HER105
C279
101/50V
VD114
SR360
C283
101/50V
C291 101/50V
C293 101/50V
220uF/35V
1000uF/25V
VD115
HER105
VD116
HER105
C294
10uH/1A
R262
22K/0.125W
C284
AK
V117
MCR100-6
G
L124
10uH/1A
C285
470uF/25V
R267
1/0.5W
C295
104/50V
N128
KA431AZ
R269
R270
333/50V
R271
R272
Vin
C292
220uF/16V
1.8K/0.1W
2.4K/0.1W
2
VD119
R263
1.2K/0.1W
R260
22/2W
GND
R273
R274
C280
101/50V
Vout
N127
LM7805
220/0.1W
4.7K/0.1W
3
5.1V
VD113
1N4148
R265
22/2W
1
C286
C296
104/50V
150/0.1W
C297
102/50V
1K/0.1W
V116
2N5551
220uF/16V
R284
1.8K/0.1%-1/8W
VD117
SR160
VD118
1N4148
C298
333/50V
C287
VD124
C281
47uF/50V
1N4148
C299
R264
10K
C288
333/50V
R275
180/2W
R276
100/2W
6.8V
VD120
470uF/25V
C282
104/50V
VD126
6.8V
R294
330/0.25W
C289
CPU5V
GND
GND
L129
PGND
P_LED2
P_LED3
-24V
+5VCP
STBY
P_DDA
P_DCK
P_DST
P_REM
R286
0/1206
R278
0/1206
R279
0
R280
PGND
0/1206
R281
0/1206
R282
0/1206
XS1
PGND
1
LED2
2
LED3
3
-24V
4
+5VCP
5
STBY
6
P_DDA
7
P_DCK
8
P_DST
9
P_REM
10
F+
F+
F-
11
F-
12
CON12
STBY
STBY
A+9V
A+9V
A+6.8V
A+6.8V
D+5V
D+5V
C290
472/50V
220uF/16V
GND
GND
F+
F+
F-
F-
CPU5V
CPU5V
-24V
-24V
A-6.8V
A-6.8V
GND
GND
GND
RH-357508
F
E
PGND
D
C
C300
220u/16V
+5VD+5V
C301
104
L126
RH-357508
B
L125
RH-357508
C302
220u/16V
+5VCPCPU5V
C303
104
L127
RH-357508
C304
220u/16V
+6.8AVA+6.8V
C305
C306
104
104
L128
RH-357508
C307
220u/16V
-6.8AVA-6.8V
C308
C309
104
104
L132
RH-357508
C317
220u/16V
+9VA+9V
C318
104
B
PGND
A
A
1 2 3 4 56
54321
6
F
F
+5VCP1
e
f
LED2
LED3
P_DDA
P_DCK
P_DST
P_REM
F+
F-
S100
61000B
P_LED2
P_LED3
P_DDA
P_DCK
P_DST
P_REM
XP6
3
e
2
1
f
E
XP1
1
2
3
4
5
6
7
8
9
CON12
10
11
12
D
MA-1000/MA-2000 DISPLAY BOARD
+5VCP
R121
VD114
B LED
+5VCP1
200
VD101
B LED
R102
R104
R103
200
200
200
VD102
VD103
B LED
B LED
C
B
V100
2N5551
C108
220u/16V
F+
F-
L100
100uH
R107
2.7K
cd
b
a
-24V
C104
47u/16V
R108
10K
STBY
C101
47u/16V
R105
VD108
R LED
C106
47u/16V
XP7
1
2
3
+5VCP1
+5VCP1
510
C102
473
cd
b
a
F-
-24V
+5VCP
C105
473
C103
47u/16V
VD105
R LED
220u/16V
+5VCP1
R106
510
C107
S1S2S3S4S5S6S7S8S9
3
2
F11F1
P14P25P36P47P58P69P710P811P9
DS100
HL-D730
C100
103
F+
R101
VD100
4.7K
1N4148
+5VCP1
S8
22
Seg721Seg8
Seg9
Seg10
Seg11
Seg12/Grid11
Vee
Seg13/Grid10
Seg14/Grid9
Seg15/Grid8
Seg16/Grid7
Grid6
Grid5
-24V
S9
S10
S11
S12
S13
S14
S15
G5
G6
G7
23
24
25
26
27
28
29
30
31
32
33
NP
40
S1S2S3S4S5S6S7
20
14
13
Vdd
Key312Key4
Key2
Key1
Seg1/KS115Seg2/KS216Seg3/KS317Seg4/KS418Seg5/KS519Seg6/KS6
STB
CLK
Vss
Din
Dout
SCL
SDA
IR-IN
SW1
Grid434Grid335Grid236Grid137Vdd38PWCTL39LED340LED241LED142Vss43OSC
C109
10u/50V
C110
473
44
G1G2G3
G4
LED1
LED
R119
33K
+5VCP1
S10
12
P1013P1114P1215P1316P1417P15
G1
VD112 1N4148
VD113
R127
R128
11
10
9
8
7
6
5
R115 10K
4
R116 10K
3
R117 100
2
1
N100
TP6317
C117
R120
47
47u/16V
S11
G4G3G2
LED
S12
47K
47K
S13
1N4148
C118
473
S14
G7G6G5
S15
18
F219F2
+5VCP1
+5VCP1
3
2
20
F221F222NP237G246G255G264G273G282G291G30NP31NP32NP33NP34NP35NP36NP37NP38F139F1
VD109
1N4148
XS6
3
e
2
f
1
S106
C114
N101 REMOT
VS
OUT
GND
R109
510
VD106
C111
VD110
1N4148
R112
R113
R114
C116
221
S107
R118
R LED
220
220
220
5.1K
LED1
VD111
1N4148
C112
S105
S108
220u/16V
XS7
cd
1
b
2
a
3
C115
221
221
1
R100
4.7K
+5VCP1
61000A
R110
300
VD107
R LED
220u/16V
LED2
C113
R122
10K
R123
10K
P_DST
P_DCK
P_DDA
P_REM
R126
300
VD104
R LED
220u/16V
LED3
E
D
C
B
A
A
1 2 3 4 56
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