Prology MCD-225 Schematic
7654321
8
D
C
B
A
L-RA
R-RA
L-CD
R-CD
200mV / 2V
AUX IN
+8V
8PIN
CON1
TO CD CHANGE (FRONT VIEW)
L-CH
3
NC
5
GND
VCC
EC19
4U7
CDC BUS
CDC ON
MUTE
S-SCL/ V-CL
VOL DATA
POWE R
BEEP
CD PWR
STAND BY
EC12
R161
R138
10U
100K
1K
SGND
EC101
10U
R139
1K
R-CH
67
ST.BY
1
8
CDC BUS
4
2
L-CH
47U
EC21
SINGE-GND
4U7
EC20
R160
C54
S9014S
R156
10K
R81
2K2
Q20
S9014S
R83
10K
R118 22K
Q19
R157
10K
1K
R82
SGND
R76
R77
10K
Q21
S9014S
100K
R119 22K
R120 22K
SGND
R121
22K
EC22
47U
SGND
22K
R115
R116 22K
R117 22K
22K
R123
5678
R-CH
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
4148
R233
R163
22K
D48
SGND
100
B+14V4
MAIN+12V
+12V
CD+5 V
CPU+ 5V
DANCEN
LED+5V
LCD+8V
CD+6 V5
R110
22K
60mV/200mV
R220
1U
EC9
EC3
4u7
X
SGND
R109
22K
C53
X
SGND
R24
3K3
224
C8
EC10 4U7
18
16
17
15
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+ 5V
Q43
S9013S
C99
104
47U
DGND
R25
3K3
224
224
C9
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
224
21
RO.BAS
R66
330K
C43
103
R235
180K
10 1/4W
R216
104
C7
4U7
4U7
EC51
EC52
R608
R609
2K2
22
LR23RF
RR
73.68mV/245.6mV
4U7
EC8
R65
330K
C42
103
Q55
S9014S
SGND
D206
1N4148
R35
2K2
R217
4U7
EC53
2K2
R607
24
152
C38
1M
R68
S9014S
D6
4148
560 1/6W
C602
Q12
474
R601
C603
470K
474
C604
R602
470K
474
C605
R603
470K
474
4U7
C606
R604
EC54
R606
2K2
DGND
2K2
25
LF
GAIN:0dB
152
C39
EC86
100U
R67
3K9
SGND
D5
4148
470K
474
R605
820
27
26
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 MMER
SGND
SGND
P-PWR
R100
22K
R104
47K
R103
22K
R88
22K
R92
R91
22K
R31
R30
R32
47K
GND
D45
4148
EC28
0
0
EC25
47U
47U
0
R29
EC97
0
47K
1U
R97
22K
SGND
5678
R105
22K
SGND
5678
R93
22K
R6
4K7
Q6
S9014S
GND
R98
47K
R205
EC59
22U
1234
IC8
4558
EC60
R206
22U
0
R101
47K
EC30
100U
R208
SGND
47
R85
22K
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
0
0
R204
Q9
EC31
100U
RR-2
RF-2
LR-2
LF-2
0
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
4K7
1K5
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
0.47U
0.47U
R11
47K
EC48
4U7
9014C
S9015S
D38
4001
D39
4001
C37
0.47U
Q48
C36
C35
0.47U
C34
RF-CH
C107
1uF
RR-CH
100U
EC81
RR-2
LF-2
LF-CH
LR-CH
SGND
R125
1K
SGND
TO SUB-WOOFER CHANGER
R22
10K
4
ST-BY
22
MUTE
11
IN1
12
IN2
15
IN3
14
IN4
13
S-GND
C33
104
GND
EC77
100uF
R20
10K
IC1
KA7808
1
OUT2IN
GND
3
GND
EC84
C5
104
GND
6
VCC3-420VCC1-2
IC3
TDA7381~6
GAIN:26dB
AC-GND16SVR10DIAGNOSTICS25TAB
EC18
47U
SGNDSGND
R215
1 1/2W
EC79
100U
SGND
EC75
1U
GND
GND
Q10 B772
R15
2R2 1/2W
R80
1U
10K
GND
GND
D
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
R274
2K2
R229
R230
R231
150
R232
R23
C31
100K
X
GND
GND
R312
ACC IN
10
Q24
EC64
9014C
150
R107
150
R108
4K7
R95
4K7
150
R96
4K7
10U
EC63
D201
4148
4K7
10U
SGND
Q25
9014C
10U
D202
EC62
4148
SGND
Q22
9014C
D203
4148
EC61
SGND
10U
Q23
SGND
D204
9014C
4148
SGND
C
B
R194 10K
POW ANT.
Q49
A1273Y
R154
Q35
GND
1K
S9014S
A
B+14V4
EC1
2200U
9
OUT1+
8
PGND1
PGND
7
OUT1-
5
OUT2+
2
PGND2
PGND
3
OUT2-
17
OUT3+
18
PGND3
PGND
19
OUT3-
21
OUT4+
24
PGND4
PGND
23
OUT4-
1
PGND
B772
Q11
R8
10K
R2
1K
Q5
S9014S
GND
R7
10K
R16
2K2
Q3
S9014S
GND
R256
4R7 1/2W
PROLOGY MCD-225
1 2 3 4 5 6 78
EC12
4u7
EC11
4u7
C107
RDATA
4K7
MCLK
MDATA
SQCK
SUBQ
SESIN
CLSW
0
CHSW
MUTE
153
S9014S
Q31
R251
0
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
STAT
RST
OPSW
R297
100K
EC2+
EC2-
DTH SW
MGNDGND PGND
CD+5V
MCLK
CD+6V5
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
+
A
IC15
MCD6208
EC78
C114
100U
104
GND
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
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
Q29
DI MME R
P-PWR
C69
SGND
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
SGND
EC90A
2U2
C70
104
AM VT
Q27
S9014S
Q28
S9014S
SGND
R4
470
4148
1K
R240
D7
150
EC89
0.22U
R211
R239 1K5
9014S
R147 1K
Q7
9014S
Q8
GND
C66
683
GND
4K7
P-PWR
R190
10K
R191
M-P W R
10K
123456789
R56
10K
R277
100K
KEY2
KEY1
C93
103
EC+/EC-
SGND
0.047F(OPEN)
GCTL
SLEEP
LCD DATA
REAR LIMIT
SW1
SW2
FRONT LIMIT
DGND
C91
DGND
MECH LOAD MOTOR DRIVE !
123456789
GND
R54 10K
GND
1 2 3 4
R55 10K
C507
1U
SGND SGND
C22
104
R44
1K
104
R311
X
C62 102
C63 102
R53 2K2 R242
R17
560
C77
X
104
C98
DGND
R278
100K
C94
103
C97
104
EC99
100uF
GND
EC38
100U
EC88
C67
GND
C78 331
C65 100P
GND
GND
CON4
3PIN
X
C71
R45
2K2
100U
R114
22K
4K7
C76
223
DANCE3
DANCE4
C55 22P
C56 22P
C57 18P
C58 18P
1K
R140
R102 1K
R38 2K2
C95
104
DGND
C80
X
C48
SGND
SGND
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
DANCE1
DANCE2
SMETER
R249
EC49
1uF
1
2
3
4
5
6
7
8
9
10
7.2M
11
12
X1
13
14
15
X2
16
17
32.768K
18
19
20
C81
X
C82
X
1
R111
0
2
3
R112
0
R275
39K
39K
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
R189
VOL DATA
S-SCL/V-CL
10K
10K
R614
680
79
80
VREF-
VOL DATA
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
R276
LCD/INH
LCD CE
LCD CLK
R26
X
30P
X
78
V-CLK/S-SC L
DGND
C61
S-SDT
S-POW ON
1K
76
77
S-POW ON
R37
0
RESET
R21
100K
R314
220K
SD
R219
22K
C64
102
R313
74
75
S-SDT
S-MUTE
MN101C28--->TF20K
2K2
2K2
R128
R126
R113
22K
C90
X
C74
223
R5
4K7
R183
X
Q30
GND
X
0
SGND
R182
R268
C68
4K7
223
GND
P-PWR
M-PWR
70
69
72
OP-MECH73CL-MECH
OP-PANEL71CL-PANEL
PANEL-PWR
MOTOR-PWR
IC10
2K2
R43
R42
R512K 2
SD
RDATA
REMOTE
STAT
R159
X
26
C75
X
SGNDSGND
C100
104
C115
56PF
X4
4.332MHz
C116
56PF
R613
DIN0
DIN3
DIN2
DIN1
62
63
64
68
2K2
2K2
R52
RCLK
61
DIN065DIN166DIN267DIN3
ACC-IN
CDC-ON
CD-PWR
MAIN-PWR
STANDBY
40
2K2
2K2
2K2
R46
R47
R48
R64 1K
PLL-STB
PLL-CLK
PLL-DATA
TN-PWR
L-CD
M-
M+
26
CON5
26PIN
R237
LIM-SW
MDATA
RST-D SP
DTH SW
TN-PWR
AMUTE
R252 22
R245
10
T2
10
T1
11
VSS2
12
VDD2
13
XI
14
XO
15
NC
16
RCLK
R111
1K
IC19
PT2579
RCLK
R106
1K
5V1
R178
1K
10K
DW9
DGND
60
LIM-SW
R248
1K
59
MCLK
R247
1K
58
R246
1K
57
MLD
R167
1K
56
SQCK
R166
1K
55
SUBQ
R165
54
1K
STAT
R164
1K
53
52
SENS
R159
51
CLSW
R146
50
OPSW
0
49
CHSW
0
R143
48
NC
47
R296
NC
100K
46
EC2+
45
EC2-
44
43
R184 1K
42
41
R41
330
R134
D12
2K7
4148
VOL LED
R192
BLKCK
1K
R-CD
LIM-SW
R33
3K3
R34
3K3
C106
153
SGNDSGND
S9015S
Q45
R185
R149
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
Q33
S9014S
100U
GCTL
R187
1K
EC37
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
JW5
12345678910111213141516171819202122232425
ON
DGND
R213
MAI N + 5 V
C20
C121
104
104
R283
R49 10K
R50 5K6
R58 22K
CD+5 V
CD+6 V5
L-CD
R-CD
R301
10K
R280
X
Q51
X
680 1/6W
Q42
9013G
DW5
EC73
5V6
100U
GND
R250
Q37
S9014S
0
C92
X
C89
272
C47
333
C23
683
R279
2K2
10 1/6W
R264
680
EC73
100U
SGND
DW10
10V
R267
X
R282
100 1/2W
Q52
S9014C
DW12
5V1
DGND
P R OL OG Y MC D-22 5
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
GND
L-CD
R-CD
+8V O UT
IC2
KA7808
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
VOL DATA
CD PWR
CDC ON
CDC BUS
STAND BY
MUTE
VOL CLK
POWER
BEEP
R244
15K
S-SCL/ V- CL
R222
10 1/6W
C104
102
C103
103
GND
S9015S
Q62
DW17
R243
1K
4V7
+8V
EC50
100U
D
C
B
A
PROLOGY MCD-225
S-SCL/V-CL
S-SDA
C59
RR-2
LF-2
C84
x
x
15
L-CDC/AUX
14
1U
R27
4U7
5K6
EC16
C27
R36
15K
17
16
18
L.IN
L.OUT
104
C25
EC13
R260
18K
SGND SGND
SGND
R28
5K6
104
104
104
C28
C29
C30
19
20
LI.BAS
RI.BAS
LO.BAS
IC5 TDA7313
R -CD
R-RA
R-CDC/AUX11L.LOUD12L-CD13L-RA
9
10
104
1U
EC14
R261
18K
104
21
8
C26
C86
RO.BAS
R.LOUD
x
R59
10U
EC66
22LR23
7
R52
EC15
RR
10K
15K
R60
10K
EC6710U
4U7
EC6810U
272
C85
x
R61
C40
10K
R62
EC6910U
25
RF24LF
C41
L.TRE4R.TRE5R.IN6R.OUT
10K
DGND
272
SGND
EC46
100U
26
3
D.GND
GND
27
2
SGND
SDA
C108
104
28
SCL
CREF1VDD
EC83 22U
R196
10k
SGND
R234A
82 1/2W
DW16
9V1
Q50
S9014S
R199
10K
SGND
R509
100K
EC98
10uF
GND
EC90
100U
R257
5K6
Q57
S9014S
EC95
10U
R505
6K8
R507
4K7
D207
1N4148
SGND
EC17
10U
R258
39K
8
1
C31
100P
R508
5K6
7
2
IC9
4558
R253
10
6
3
EC44
47U
R259
39K
R63
56K
EC96
R512
6K8
STAND BY
+12V
100U
Q47
9014S
SUB-Mute
+8V
R510
C401
104
5
R195
15K
4
D208
1N4148
D209
220
C402
474
x
SUB-WOOFER RCA OUT
SGND
R513
1K
SUB-WUF POWER
SUB-WUF MUTE
NC
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