Service manual
HCD-F3MD
4242
E
GRID
DRIVE
S601
5
6
10
2
M103
(LOADING)
OPEN-SW
IN-SW
LOAD-IN
LOAD-OUT
66
67
70
71
MOTOR
DRIVER
IC171
LOADING MOTOR
DRIVE
M
S602–616
CLOSE
OPEN
S1
CD TRAY
OPEN/CLOSE DETECT
REGULATOR
CONTROL
Q975
Q501
D987
+
SYS +5V
D922
D923
D943D946
B.UP +3.3V
MUTING
Q801
MUTING
Q101
MUTING CONTROL
Q102
D101
05
VOLTAGE SELECTOR
220 – 240V 110 – 120V
STEREO
TUNED
DO
DI
CLK
CE
˚MUTE
50
51
54
53
55
52
49
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
13
14
15
16
12
1
11
62
64
24
31
33
59
DIG1
DIG11
DIG14
DIG12
SEG27
SEG34
SEG26
SEG0
SCK
SDATA
RST
CS
DIG0
1
POWER AMP
IC801
10
6
1
+5.6V REG
IC921
2
3
1
2
3
+7.5V REG
IC902
1
2
3
+3.9V REG
IC912
13
+5V REG
IC913
13
+12V REG
IC901
13
+7V REG
IC903
13
+5V REG
IC911
53
MD RESET
IC931
J101
IC301
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME
J101
IC601
FL CONTROLLER
X501
16MHz
X502
32.768kHz
TM881
J601
T900
POWER
TRANSFORMER
D986
D921
D941
BT922
FOR
BACK-UP
T901
SUB POWER
TRANSFORMER
D911
D914
D912
D913
ANTENNA
TUNER UNIT
AM
R-CH
L
R
TAPE
IN
R-CH
MUTING CONTROL
Q552
L
R
TAPE
OUT
R-CH
BD (CD) SECTION
CD-L
I2C-SCL
I2C-SDA
MD-LEVEL L
MD-REC-L
MD-L
RESET
P.DOWN
BD (MD)
SECTION (2/2)
FLUORESCENT
INDICATOR
TUBE
FL601
RELAY DRIVE
Q881
R-CH
R-CH
+
–
–
+
L
R
R-CH
PHONES
LED DRIVE
Q607–610
D602–609
ROTARY
ENCODER
S601
REMOTE
CONTROL RECEIVER
IC602
BD (CD) SECTION
VOLUME
FL ON SWITCH
Q974
CHARGER
Q921
VF SW
Q972, 973
VF1
VF2
AC IN
RY991
RELAY DRIVER
Q991
RECTIFIER
D975–978
–30V REG
Q971
RECTIFIER
D971–974
RECTIFIER
D992, 993
AC OFF DETECTOR
IC941
AC ON RESET
Q941
RECTIFIER
D982–985
RECTIFIER
D981
+B
–B
RECTIFIER
D832
A+7.5V
DIG+5V
ST+12V
A+5V
B+ SWITCH
Q911
CD ON SWITCH
Q912
A+3.3V
SYS+3.3V
RESET SWITCH
Q931
CD+5V
MOTOR
+7V
VP (–30V)
B.UP +5V
(FOR POWER ON)
B.UP +2.7V
(FOR STANDBY)
136
10 1112 13 15
19
22
27
2930
32 33
34 3536 3738 424347 48
4950 51 525354 55 56 575859 72 7981 82
83
86 87 88 89 9193
94
IC501
MASTER CONTROLLER
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
FL-RESET
FL-CLK
FL-DATA
POWER-ON
5
CD-POWER
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
STKPOWER
F-RY
PROTECT-IN
CD-RESET
SQ-DATA-IN
SENS
CD-LAT
SCOR
SQ-CLK
HOLD
SIRCS
HEADPHONE
LED
LED
STANDBY
VOL A
VOL B
TA-MUTE
CD DATA
CD CLK
KEY 0
KEY 1
KEY 2
RY881
(Page 39)
(Page 41)
(Page 39)
: TUNER
: CD PLAY
: TAPE IN (PLAY)
: TAPE OUT (REC)
: MD PLAY
: MD REC (ANALOG)
COAXIAL
FM
75Ω
L
R
• R-ch is omitted due to same L-ch.
• SIGNAL PATH
D924
B.UP +3.3V
MUTING CONTROL
Q551
MUTING
Q841
DBFB SW
Q301
PROTECT SW
Q872–873
DBFB DET
D881
OVER LOAD DET
Q802, 871
SPEAKER
IMPEDANCE
6 – 16Ω
Hong Kong,
Taiwan models
(Korean model)
(Korean model)
6-4. BLOCK DIAGRAM – MAIN Section –