Prolodgy MCD-250 Schematics
7654321
PROLOGY MCD-250
8
D
C
B
A
L-RA
R-RA
L-CD
R-CD
200mV / 2V
AUX IN
+8V
8PIN
CON1
TO CD CH AN GE (FRO NT VI EW)
L-C H
3
NC
5
GND
VCC
EC19
4U7
CDC BUS
CDC ON
MUTE
S-SCL/ V- CL
VOL DATA
POWER
BEEP
CD PWR
STAND BY
EC12
R161
R138
10U
1K
100K
SGND
EC101
10U
R139
1K
R-CH
67
ST. BY
1
8
CDC BU S
4
2
L-CH
47U
EC21
SINGE -GND
4U7
EC20
S9014S
R156
10K
R81
2K2
Q20
S9014S
R83
10K
R118 22K
Q19
R157
10K
1K
R82
SGND
R76
R77
10K
Q21
S9014S
R160
100K
R119 22K
R120 22K
SGND
R121
22K
EC22
47U
SGND
22K
R115
R116 22K
R117 22K
22K
R123
5678
R-CH
C54
X
D46
4148
D47
4148
Q18
10K
R130
S9014S
10K
EC102
R131
22K
10U
R78
SGND
SGNDSGND
Q38
S9015S
R75
22K
SGND
IC6
4558
EC56
22U
EC23
47U
R79
22K
1N4148
10U
R145
EC11
1K
SGND
1K
22K
R162
R90
4K7
SGND
D49
SGND
4148
R129
R122
10K SGND
22K
4K7
R132
EC55
22U
1234
R158
10K
R133
4K7
SGND
D205
R163
22K
D48
4148
SGND
R233
100
B+14V4
MAIN+12V
+12V
CD+5 V
CPU+ 5 V
DANCEN
LED+5V
LCD+8V
CD+6 V5
1U
EC9
60mV/200mV
EC3
4u7
R220
X
SGND
R109
22K
R110
C53
22K
X
SGND
R24
3K3
224C9224
C8
EC10 4U7
15
16
17
18
L.IN
L.OUT
LI.BAS
L-CDC/AUX
14
1U
1U
104
C6
EC5
EC4
C45
472
R221
X
SGND
R74
C52
120K
X
SGND SGND
CPU+ 5 V
Q43
S9013S
C99
104
47U
DGND
R25
3K3
224
C10
C11
19
20
RI.BAS
LO.BAS
IC4 TDA7313
1U
4U7
EC6
EC7
C44
472
R73
120K
103
C46
DW3
EC35
5V6
C50
DGND
103
C602
4U7
4U7
4U7
EC53
EC51
EC52
2K2
R608
R609
224
2K2
R607
21RR22LR23RF24LF25
73.68mV/245.6mV
RO.BAS
4U7
EC8
104
152
C7
C38
R65
R66
330K
330K
C42
C43
103
103
1M
R68
R235
Q55
180K
S9014S
Q12
S9014S
SGND
D206
1N4148
D6
10 1/4W
4148
R216
R35
2K2
R217
560 1/6W
474
R601
C603
470K
474
C604
R602
470K
474
C605
R603
470K
474
4U7
C606
R604
EC54
R606
2K2
DGND
2K2
GAIN:0dB
152
C39
EC86
100U
R67
3K9
SGND
D5
4148
470K
474
R605
820
26
27
28
SCL
SDA
D.GND
CREF1VDD2GND3L.TRE4R.TRE5R.IN6R.OUT7R.LOUD8R -CD9R-RA10R-CDC/AUX11L.LOUD12L-CD13L-RA
22U
EC82
DW15
9V1
104
C105
R207
82 1/2W
EC76
100U
SGND
R99
R87 68K
R265
x
DI MME R
SGND
SGND
P-PWR
R97
22K
R29
0
47K
R100
22K
EC28
47U
R31
0
R104
47K
R103
22K
R105
22K
R30
0
R88
22K
EC25
47U
R32
0
R92
47K
R91
22K
EC97
1U
GND
GND
D45
4148
SGND
5678
R85
22K
SGND
5678
R93
22K
R6
4K7
Q6
S9014S
R98
47K
R205
EC59
22U
1234
IC8
4558
EC60
R206
22U
0
R101
47K
EC30
100U
R208
SGND
47
R86
47K
R203
EC57
22U
1234
IC7
4558
EC58
22U
R89
R209
47K
47
Q44
9015S
R3
1K
R218
GND
22K
Q39
D882
3V6
DW11
S9014S
GND
R269
47K
R202
10K
RR-2
0
RF-2
0
R204
Q9
LR-2
LF-2
0
EC31
100U
1K
R144
M+9 V
R210
470
DW2
5V6
D882
EC32
0.22U
GND
R155
1K
Q56
S9014S
GND
R234
RR-2
100K
R236
LF-2
100K
R233
LR-2
100K
R177
RF-2
100K
R169 1K5
RR-2
R168
1K5
SGND
1K5
R171
RF-2
R170
1K5
SGND
R12
100K
GND
GND
R18
1K5
4K7
1K5
R172
R173
LR-2
SGND SGND
1K5
R175
LF-2
R174
1K5
SGND SGND
Q27
8050D
R214
22 1/4W
EC34
47U
Q40
GND
DW6
8V2
D882
R176
EC33
560
0.22U
GND
Q41
R212
470
DW4
EC41
5V6
47U
GND
R127
C2 472
SGND
C1
472
SGND
SGND
Q4
S9014S
C3
472
C4
472
Q27A
22K
4148
D4
EC48
0.47U
0.47U
R11
47K
4U7
9014C
S9015S
D38
4001
D39
4001
0.47U
Q48
RR-2
TO SUB-WOOFER CHANGER
LF-2
3mH
LED2
CD DOOR
RR-2
LR-2
RF-2
LF-2
EC40 47U
R193 10K
R124
22K
COIL1
D3
1N5401
4 OHM
4 OHM
4 OHM
4 OHM
GND
4148
D701
R23
C31
100K
X
GND
GND
R274
2K2
R312
ACC IN
10
Q24
R229
150
R230
150
R231
150
R232
150
EC64
9014C
R107
R108
4K7
R95
4K7
R96
4K7
10U
EC63
D201
4148
4K7
D202
4148
D203
4148
D204
4148
10U
SGND
Q25
9014C
10U
EC62
SGND
Q22
9014C
EC61
SGND
10U
Q23
9014C
RCA LINE OUT !
SGND
SGND
R194 10K
POW ANT.
Q49
A1273Y
R154
Q35
GND
S9014S
1K
B+14V4
C5
EC1
104
2200U
RR-CH
R22
10K
C37
C36
RF-CH
4
ST-BY
22
MUTE
11
IN1
12
IN2
LF-CH
15
IN3
LR-CH
14
IN4
13
S-GND
SGND
C33
104
EC77
R125
100uF
1K
R20
10K
IC1
KA7808
OUT2IN
GND
SGND
3
GND
C35
0.47U
C107
1uF
C34
100U
EC81
6
IC3
TDA7381~6
GAIN:26dB
AC-GND16SVR10DIAGNOSTICS25TAB
EC18
47U
SGNDSGND
GND
R215
1 1/2W
EC79
100U
SGND
EC75
1U
GND
GND
R15
1
2R2 1/2W
EC84
R80
1U
10K
GND
GND
GND
VCC3-420VCC1-2
PGND
GND
Q10 B772
GND
OUT1+
PGND1
OUT1-
OUT2+
PGND2
OUT2-
OUT3+
PGND3
OUT3-
OUT4+
PGND4
OUT4-
1
B772
S9014S
Q11
R2
1K
Q5
S9014S
R16
2K2
Q3
9
8
PGND
7
5
2
PGND
3
17
18
PGND
19
21
24
PGND
23
R8
10K
R7
10K
R256
4R7 1/2W
D
C
B
A
1 2 3 4 5 6 78
EC12
4u7
EC11
4u7
C107
RADIO MODULE1 CET7010
D
D16
X
D01
D05
D09
D-LAI
D010
D-LAI
D011
D-LAI
D012
D-LAI
C
B
CON2
18PIN
C113
102
Q64
2SD882P
DW7
6V8
EC85
47uF
M
D06
D07
D08
D-LAI
D-LAI
D-LAI
D-LAI
R266
680 1/6W
C112
103
-
D-LAI
D02
D-LAI
D03
D-LAI
D04
D-LAI
KEY1
EC+/EC-
LCD /INH
LCD CE
LCD CLK
LCD DATA
DTH SW
CPU+ 5 V
KEY2
LCD+8V
DGND
POW LED
REMOTE
LGND
LED+5V
VOL LED
EC2+
EC2-
2PIN
CON3
D22
D27
D32
D37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
ENCODE SW2 OPTION !
1
2
+
C114
104
MCD6208
GND
IC15
EC78
100U
A
AM ANT1FM ANT2AM LOC3FM DX4GND5FM VT6GND7GND8AM VCC9GND10FM / AM OS C11FM VCC12FM / AM VC C13AM VT14GND15LCH16RCH17GND18N.C19ST / RQ20S.METER21SD / ST IND22SNC23DET OUT24FM / AM VC C25MUTE DRIVE
L1
33uH
D17
X
SGND
D20
D21
D25
D26
D30
D31
D35
D36
KEY1
EC+/EC-
LCD/INH
LCD CE
LCD CLK
LCD DATA
DTH SW
CPU+ 5 V
KEY2
LCD+8V
DGND
POW LED
REMOTE
GND
LED+5V
VOL LED
EC2+
EC2-
PANEL MOTOR DRIVER !
IC14
MCD6208
C110
104
GND
C506
1U
R303
1K
R302
47K
C72
C73
223
223
SGND
SGND
R181
10K
Q54
Q29
S9014S
S9014S
SGND
D18
D19
DIN0
D23
D24
DIN1
D28
D29
DIN2
D33
D34
DIN3
OP-P
CL-P
OP-M
CL-M
S-MUTE
S-P OW
P-PWR
MPWR
Q53 S9015S
R298
10K
R299
10K R300
DW14
3V9
DGND DGND
SW3
RSET SW
Q47B In Slide Down Is KTA1273Y
Q47B Non Slide Down Is KTC8550
Q47B
1273
R153
4K7
Q34
S9014S
SGND
R142
330
GND
100U
EC77
R57
GND
10K
SGND
SGND
DI MME R
P-PWR
123456789
C69
X
SGND SGND
330
R141
4K7
R180
EC93
SGND
FM VT
Q26
9014S
RESET
R266
0
SGND
EC39
C21
47U
104
D44
4148
SGND SGND
10U
EC90A
2U2
C70
104
AM VT
Q27
S9014S
Q28
S9014S
SGND
R4
470
R211
C66
683
GND
0.22U
4148
1K
R240
D7
150
EC89
R239 1K5
R147 1K
Q7
9014S
Q8
GND
9014S
4K7
P-PWR
R190
10K
R191
M-P WR
10K
R56
10K
R277
100K
KEY2
KEY1
C93
103
DGND
EC+/EC-
SGND
0.047F(OPEN)
DGND
GCTL
SLEEP
LCD DATA
REAR LIMIT
SW1
SW2
FRONT LIMIT
C91
MECH LOAD MOTOR DRIVE !
123456789
GND
R54 10K
GND
1 2 3 4
R55 10K
C507
1U
SGND SGND
C22
104
R44
1K
R311
X
C62 102
C63 102
R53 2K2 R242
C77
X
104
C98
DGND
R278
100K
C94
103
C97
104
EC99
100uF
GND
EC38
C67
104
GND
C78 331
C65 100P
GND
R17
560
CON4
3PIN
C71
R45
2K2
100U
100U
EC88
R114
22K
4K7
C76
223
GND
DANCE4
C55 22P
C56 22P
C57 18P
C58 18P
R140
R102 1K
R38 2K2
C95
104
DGND
C80
X
X
SGND
R241
8K2
VDD
12
13
AM-OSC
FM-OSC
14
GND
15
MW-FM-IF
16
AGC-OUT
17
I/O-7-SCIN
18
19
DO1
20
DO2
IC11
TC9257F
LED1
FLASH
R189
DANCE1
DANCE2
DANCE3
SMETER
10K
R249
680
EC49
1uF
1
2
3
4
5
6
7
8
9
10
7.2M
11
12
X1
13
14
15
X2
16
17
1K
32.768K
18
19
20
C81
X
C82
X
1
R111
0
2
3
R112
0
R275
39K
39K
R276
SGND
C48
SGND
SGND
103
SGND
R238
56K
SMETER
I/O-5/CLKI/O-6
1011
MO/ST
OT-4
9
FM/AM
8
MW-OUT
LW-OUT
7
LOC/DX
6
FM-OUT
PLL-DATA
DATA
5
PLL-CLK
4
CLOCK
PLL-STB
CE
3
XT-1
2
1
XT
X3
7.2M
C60
39P
DGND
DGND
C502
S-POW
S-MUTE
VOL DATA
S-SCL/V-CL
10K
R614
78
79
80
VREF-
VOL DATA
V-CLK/S-SC L
KEY2
KEY1
SMETER
FLASH LED/DIMMER
BFP-IN1
BFP-IN2
BFP-IN3
BFP-IN4
EC+/EC-
VREF+
VDD
OSC2
OSC1
VSS
X1
X0
MMOD
RXD/GCTL
TXD/SLEEP
LCD DATA
LCD-CLK21LCD CE22LCD /INH23BEEP24RESET25PANEL-OPSW26PANEL-CLSW27RDATA28SD29CDC-OUT30CDC-BUS31REMOTE32BLKCK33RCLK34NC35PLL-DATA36PLL-CLK37PLL-STB38VOL LED39NC
2K2
R39
R40
2K2
DGND
LCD/INH
LCD CE
LCD CLK
R26
X
C61
30P
X
S-POW ON
77
S-POW ON
R37
R21
100K
R314
220K
SD
R219
22K
S-SDT
R313
1K
74
76
75
S-SDT
S-MUTE
MN101C28--->TF20K
2K2
2K2
0
R128
R126
R113
22K
C90
X
RESET
C74
223
R5
4K7
R183
X
C64
Q30
102
X
0
SGND
R182
R268
C68
4K7
223
P-PWR
70
72
OP-MECH73CL-MECH
OP-PANEL71CL-PANEL
PANEL-PWR
IC10
2K2
R42
R512K 2
SD
RDATA
STAT
GND
GND
DIN3
M-PWR
68
69
MOTOR-PWR
2K2
R43
REMOTE
R159
X
26
C75
X
SGNDSGND
C100
104
C115
56PF
X4
4.332MHz
C116
56PF
R613
DIN0
DIN2
DIN1
R237
62
63
64
61
DIN065DIN166DIN267DIN3
ACC-IN
CDC-ON
CD-PWR
LIM-SW
MAIN-PWR
MDATA
RST-D SP
DTH SW
TN-PWR
STANDBY
2K2
R52
RCLK
40
2K2
2K2
2K2
R46
R47
R48
R64 1K
PLL-STB
PLL-CLK
PLL-DATA
TN-PWR
L-CD
M-
M+
26
CON5
26PIN
R245
1K
MCLK
SQCK
SUBQ
CLSW
OPSW
CHSW
AMUTE
R134
R252 22
10
T2
10
T1
11
VSS2
12
VDD2
13
XI
14
XO
15
RDATA
NC
16
RCLK
R111
1K
IC19
PT2579
RCLK
R106
4K7
1K
5V1
R178
10K
DW9
DGND
60
LIM-SW
R248
1K
59
MCLK
R247
MDATA
1K
58
R246
1K
57
MLD
R167
1K
56
R166
1K
55
R165
54
1K
STAT
R164
1K
53
52
SENS
NC
NC
EC2+
EC2-
2K7
R-CD
SESIN
R159
51
0
R146
50
0
49
CHSW
0
R143
48
47
R296
100K
46
45
44
43
R184 1K
42
41
R41
330
MUTE
D12
4148
VOL LED
R192
BLKCK
1K
LIM-SW
153
S9014S
Q31
R251
0
R149
1K
R186
10K
C91
104
89
CMP
7
C102
VSS3
6
VSS1
5
ADD1
4
MUX
C101
3
VREF
104
2
1
QUAI
R126
1K
RDATA
C601
104
DGND
EC65
10U
MLD
SQCK
SUBQ
STAT
RST
CLSW
OPSW
R297
100K
EC2+
EC2-
DTH SW
MGNDGND PGND
CD+5V
MCLK
CD+6V5
R33
3K3
R34
3K3
C106
153
SGNDSGND
S9015S
Q45
R185
1K
R148
R270
1K
0
Q32
S9014S
SGND
R128
10
EC91
100uF
560PF
330PF
C111
C110
25PF
TN-PWR
CPU+ 5 V
LED+5V
LCD+8V
75uS/50uS
MLD
MDATA
C96
104
DGND
MUTE
STAT
SUBQ
SQCK
BLKCK
RST
DANCE4
DANCE3
DANCE2
DANCE1
R304
22K
CLSW
C504
272
R305
22K
Q58
S9014S
SGND SGND
S9012S
R150
1K
R188
4K7
SGND
D8 4148
C14
R69
1M
104
D9 4148
C15
R70
1M
104
D10 4148
C16
R71
104
1M
D13 4148
C24
R72
104
1M
SESIN
OPSW
IRLED
CHSW
Q46
S9014S
R187
1K
Q33
EC37
100U
GCTL
C505
272
Q59
S9014S
C79
D40
681
4148
SGND
C88
272
D41
4148
SGND
C49
D42
103
4148
SGND
C12
D43
0.82U
4148
SGND
R179 10K
SLEEP
R280
JW5
12345678910111213141516171819202122232425
ON
DGND
R213
S9014S
X
R279
680 1/6W
Q42
9013G
DW5
EC73
5V6
100U
GND
R250
DW10
10 1/6W
R264
680
EC73
100U
SGND
10V
Q37
0
R267
X
R282
100 1/2W
Q52
S9014C
2K2
DW12
5V1
DGND
MAI N + 5 V
C20
C121
104
104
R283
C92
R49 10K
C89
272
R50 5K6
C47
333
R58 22K
C23
683
CD+5 V
CD+6 V5
L-CD
R-CD
R301
10K
X
Q51
X
4321
R-RA
L-RA
Q63
9014S
R223
1K
R198
10K
S-MUTE
S-P OW ON
S-SDA
S-SCL/ V- CL
VOL DATA
IN OUT
GND
R244
15K
L-CD
R-CD
+8V O UT
IC2
KA7808
GND
MAIN+12V
CPU+ 5 V
DANCEN
LED+5V
LCD+8V
CD+6 V5
CD+5 V
B+14V4
ACC IN
S-MUTE
S-P OW ON
S-SDT
S-SCL/ V- CL
VOL DATA
CD PWR
CDC ON
CDC BUS
STAND BY
MUTE
VOL CLK
POWER
BEEP
R222
10 1/6W
C104
102
C103
103
GND
S9015S
Q62
DW17
R243
1K
4V7
+8V
EC50
100U
D
C
B
A
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