18
18
HCD-EP707
5-3.
BLOCK DIAGRAM – MAIN Section –
: RECORD
: AUX IN
: TAPE PLAY
: CD PLAY
: CD PLAY (DIGITAL OUT)
: TUNER
EEPROM DATA
SYSTEM CONTROLLER
IC101 (2/3)
EEPROM
IC102
CD DATA
CD CLK
CD RESET
LIN1
LIN2
D
(Page 17)
TL-CH
TR-CH
D
ATA
X2
X1
X102
4.19MHz
11
23
EEPROM CLK 22
12
MUTE
3
STROBE
8
26
CLK
27
13
41
36
9
CAR M–
CAR M+
21
20
DATA OUT
CLK
18
17
DATA IN
19
PLL-CE
4
SDA
5
SCL
6
16
15
LIN3
LIN4
14
A
(Page 16)
L
R
24
OUT_L
18
LOUT
17
LIN
23
OUT_R
R-CH
6
ROUT
R-CH
R-CH
R-CH
CD-L-IN
CD-R-IN
CD-DIGITAL-
OUT
CD BLOCK
INPUT SELECT SWITCH,
ELECTRICAL VOLUME
IC207
R-CH
R-CH
R-CH
PHONES
SP801
CD DO
CD CLK
CD \RESET
+
+
–
–
+9V
FUNCTION SELECT
IC204
CLOCK
3
SERIAL
2
STROBE
1
R-CH
B
(Page 16)
TU-R
TU-L
DA IN
CLOCK
DA OUT
STEREO
53
STEREO
TUNER STATION
27
STATION
PLL CE
R-CH
D211
D205
JK201
CAR EX
CAR HM
5
47
48
49
CHANGER
MECHANISM BLOCK
EX
HOME
CDSW5
4
OP/CLS
SLD FW
50
51
52
CDSW4
OPEN/CLOSE
FWD
SLD REW
54
RVS
HEADPHONE
AMP
IC210
MUTING
Q234
MUTING
Q702, 703
SPEAKER
IMPEDANCE
USE 4
Ω
POWER AMP
U1
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
CARRIAGE MOTOR DRIVE
IC205
IN1
IN2
OUT1
OUT2
9
1
7
3
MOTOR
DRIVE
R-CH
CON204
L
R
MD IN
DIGITAL OUT
OPTICAL
OPTICAL
TRANSCEIVER
CON219
CAR M–
CAR M+
DAW M–
DAW M+
7
24
DRAWER MOTOR DRIVE
IC206
IN1
IN2
OUT1
OUT2
9
1
7
3
MOTOR
DRIVE
DAW M–
DAW M+
R-CH
RL-CH
RR-CH
CD-EN, TU-EN,
MUTING
POWER ON
C
(Page 17)
F
(Page 19)
CD-EN
TU-EN
MUTING
G
(Page 19)
SOL, REC_EN,
MOTOR_ON
E
(Page 17)
11
Q8
12
Q7
13
Q6
14
Q5
6
Q3
REC_EN
SOL
MOTOR_ON
LED
DRIVE
Q249
LED103
CD
DISC SKIP
5
Q2
LED
DRIVE
Q250
LED104
TAPE
4
Q1
LED
DRIVE
Q251
LED105
TUNER
BAND
7
Q4
LED
DRIVE
Q248
LED102
MD
