Filter
Top Products
HCD-MD373
44
44
– MAIN SECTION –
BUFFER
Q401
MUX
RDATA RCLK
X1
X0
X401
4.332 MHz
RDS DECODER
IC401
X401
4.332 MHz
AEP, UK
STEREO
TUNED
DO
DI
CLK
CE
MUTE
50
51
54
53
55
52
49
6910
B
SELECT
SWITCH
12
14
13
SELECT
SWITCH
39
26
38
37
36
25
20 21 22
35
MICON
INTERFACE
BASS
TU
TC
CD
MD
L
A
T
D
A
T
A
C
L
K
R-CH
8
6
5
2
1
12 911 10
13
13
14
15
16
61
12
1
11
62
64
.
24
31
33
59
DIG1
DIG11
DIG14
DIG12
SEG27
SEG34
SEG26
SEG0
SCK
SDATA
DIG15
RST
CS
DIG0
1
POWER AMP
IC801
10
11
M
DRIVE
56
10
2
1
+5V REG
IC921
2
3
1
2
3
+7V REG
IC902
1
2
3
+3.3V REG
IC912
13
+5V REG
IC913
13
+12V REG
IC901
13
+7V REG
IC903
13
+5V REG
IC911
53
MD RESET
IC931
J101
J602
IC302
INPUT SELECTOR
IC301
DIGITAL SOUND
CONTROLLER
J101
IC131
DIGITAL INPUT
SELECTOR
IC121
IC601
DISPLAY DRIVER
X501
16MHz
X502
32.768kHz
TM881
J601
IC171
MOTOR
DRIVE
T900
POWER
TRANSFORMER
D987
D986
D921
D945
D944
S101
RESET
BT921
BACKUP
BATTERY
T901
SUB
TRANSFORMER
D101
D911
D914
D912
D913
M103
LOADING
MOTOR
ANTENNA
TUNER UNIT
AM
RDS
R-CH
R-CH
L
B
R
TAPE
INPUT
R-CH
LINE
IN
R-CH
MUTE SW
Q101
REC OUT MUTE
Q102
MUTE CONTROL
Q552
MUTE SW
Q801
L
R
TAPE
R-CH
OUTPUT
BD (CD) SECTION
CD-L
D-OUT
I2C-SCL
I2C-SDA
MD-LEVEL L
MD-REC-L
MD-L
DIG-IN
RESET
P.DOWN
BD (MD)
SECTION (2/2)
OPTICAL
DIGITAL
IN
FLUORESCENT
INDICATOR
TUBE
FL601
VF
VF
BUFFER
Q602
BUFFER
Q601
MD-RESET
Q932
MUTE SW
Q551
MUTE SW
Q841
+B
DBFB SW
Q301
PROTECT SW
Q872–873
DBFB DET
D881
OVER LOAD DET
Q802, 871
RELAY DRIVE
Q881
R-CH
R-CH
+
–
–
+
L
R
SPEAKER
R-CH
PHONES
S602–616
LED DRIVE
Q607–610
D602–609
SIRCS
IC602
ROTARY
ENCODER
S601
BD (CD) SECTION
VOLUME
SWITCH
Q501
SWITCH
Q974
–30V REG
Q971, D979–980
CHARGER
Q921
VF SW
Q972, 973
VF
VF
AC IN
RY901
RELAY DRIVER
Q991
SWITCH
Q975
RECTIFIER
D975–978
RECTIFIER
D971–974
RECTIFIER
D992–993
AC OFF DETECTOR
IC941, D941–943
AC ON RESET
Q941
RECTIFIER
D982–985
RECTIFIER
D981
+B
–B
RECTIFIER
D832
A+7.5V
DIG+5V
ST+12V
A+5V
SWITCH
Q911
SWITCH
Q912
A+3.3V
SYS+3.3V
RESET SWITCH
Q931
CD+5V
MOTOR
+7V
A
VP (–30V)
B.UP +3.3V
34
13
5
6
10 1112 13 15
19
22
27
282930
32 33
34 3536 3738 424345 4647 48
4950 51 525354 55 56 575859 66677071 72 7981 82
83
86 87 88 89 9193
94
IC501
MASTER CONTROL
5
0
5
1
5
4
5
3
5
5
5
2
4
9
5
9
3
2
5
6
8
1
5
8
8
2
1
9
3
3
5
7
MD-REC-L
I2C-SDA
I2C-SDL
62LAT
62DATA
62CLK
FUNC-SEL1
OPT-SEL
FL-RESET
FL-CLK
FL-DATA
POWER-ON
CD-POWER
MD-RESET
AC-CUT
RESET
FL-ON
XOUT
XIN
SUBXIN
SUBXOUT
REC OUT CONT
FL-CHIP SELECT
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
RQS-DATA
RDS-INT
STKPOWER
F-RY
PROTECT-IN
CD-RESET
SQ-DATA-IN
SENS
CD-LAT
SCOR
SQ-CLK
HOLD
OPEN-SW
IN-SW
LOAD-IN
LOAD-OUT
SIRCS
HEADPHONE
LED
LED
STANDBY
VOL A
VOL B
TA-MUTE
CD DATA
CD CLK
KEY 0
KEY 1
KEY 2
RY881
(Page 41)
(Page 43)
(Page 41)
: FM
: CD
• SIGNAL PATH
: CD (Digital out)
: PB (TAPE)
: REC (TAPE)
: PB (MD)
: REC (MD)
: PB (Digital out)
: REC (Digital in)
.
.
.
13
14
162
4
2021
VOLTAGE
SELECTOR
S991
FM 75 Ω
FM 300 Ω