HCD-RG66T
23
23
SECTION 7
DIAGRAMS
7-1.
BLOCK DIAGRAM – CD SERVO Section –
CD A+5V
DETECTOR
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
AUTOMATIC
POWER
CONTROL
Q101
LD
PD
LASER DIODE
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC101 (1/2)
M101
(SPINDLE)
M
M
M102
(SLED)
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
OPTICAL PICK-UP
BLOCK
(A-MAX. 3)
FILTER
R-CH
PWM1
PWM3
PWM2
PWM3
PWM2
PWM1
DISC TRAY
STATUS SENSOR
IC711
LASER DIODE
ON SWITCH
Q202 – 205
OPEN
CLOSE
S701
DISC TRAY OPEN/CLOSE
DETECT
S711
OPTICAL PICK-UP
UP/DOWN DETECT
TURN MOTOR
DRIVER
IC701
M721
(TURN)
M
• SIGNAL PATH
: CD PLAY (ANALOG)
: CD PLAY (DIGITAL OUT)
• R-ch is omitted due to same as L-ch.
CD DIGITAL OUT
OPTICAL
(LIMIT)
When the optical
pick-up is inner
position
ON :
E-F BALANCE
(1 TRACK JUMP)
RV101
MUTING
Q201
MUTING CONTROL
SWITCH
Q206, 207
R-CH
X101
16.9344MHz