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57
57
HCD-M700
MD Section
• Signal Path
: PB (MD)
: REC (MD)
: DVD (DIGITAL)
: DIGITAL AUDIO
F
E
C
D
B
A
LASER
DIODE
DETECTOR
OPTICAL PICK-UP BLOCK
(KMS-260B)
LD
POWER
PD
LD
B
A
D
E
TRACKING
COIL
FOCUS
COIL
T+
T-
F+
F-
VCC
VC
LD
DRIVE
Q121,122
IC101
RF AMP
IC141
MOTOR/COIL DRIVE
M
M702
SLED
MOTOR
M
M701
SPINDLE
MOTOR
DIGITAL SIGNAL PROC.
IC151
DIGITAL SERVO
IC721
MD MECHANISM/
MASTER CONT
IC190
+3.3V
+5V
J
I
C
J
I
F
LASER ON
SWITCH
Q101
VR
PD
ILCC
HF MOD
SWITCH
Q131-134
HF
MODULE
VR
3
4
IC102
WAVEFORM
SHAPER
HR901
OVER WRITE
HEAD
IC181
Q181,182
X171
90MHz
IC153
DRAM
Q771
SWITCH
M
M703
LOADING
MOTOR
IC781
1
IC771
BU +3.3V
VOL
SWITCH
Q781,782
M+7V
S101
(LIMIT IN)
S103
(OUT)
S104
(PLAY)
S105
(REC)
S102
(REFRECT/PROTECT)
IC195
Q1703
SWITCH
IC701
A/D CONV
IC601
X701
12..288MHz
IC1701
D/A CONV
R-CH
Q711
SWITCH
+B
SWITCH
Q1701,1702
+3.3V
2
1
4
IC762
5
3
2
6
7
1
IC761
R-CH
2
1
4
IC752
IC600
SPDIF
REC L IN
S DATA
BCK
LRCK
MD L
AU MUTE
P DOWN
IIC DATA
IIC CLK
• R-ch is omitted due to same as L-ch.
9
IC751
SELECTOR
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
1
5
1
3
6
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299