![background image](http://html.mh-extra.com/html/sony/hcd-tb20/hcd-tb20_service-manual_420885029.webp)
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7-2. Block Diagrams
CD Section
• Signal Path
: CD
:DIGITAL OUT
OPTICAL PICK-UP
BLOCK
(A-MAX.3)
PD1
PD2
I5-10
I1-6
LD
VC
SW
VCC
+5V
GND
PD
VR
LD
DRIVE
Q101
RF AMP
IC103
IC102
MOTOR/COIL DRIVE
M
SLED
MOTOR
M
SPINDLE
MOTOR
F+
F-
T+
T-
DIGITAL SIGNAL PROCESSOR
D/A CONVERTER
IC101
DIGITAL SERVO
R-CH
R-CH
DATA
CLK
XLT
MASTER CONTROL
IC401(1/3)
LDON
Q301-304
XRST
PWM1
PWM2
PWM3
IC351
+3.3V
REG.
Q102,D101
X101
16.9344MHz
CD D+5V
+3.3V
CD-L
Q305
Q281,283
MUTE
SWITCH
• R-ch is omitted due to same as L-ch.
Summary of Contents for hcd-tb20
Page 20: ...20 HCD TB20 3 19 IN OUT SW Board 2 two screws BTTP M2 6 3 IN OUT SW board 1 connector CN704 ...
Page 38: ...38 38 HCD TB20 7 9 Schematic Diagram MAIN Section 3 3 Page 48 Page 34 Page 32 47p 47p 47p ...
Page 42: ...42 42 HCD TB20 7 13 Schematic Diagram AMP Section Page 36 Page 36 Page 44 Page 46 c E MX E MX ...
Page 48: ...48 48 HCD TB20 7 19 Schematic Diagram POWER Section I Page 38 Page 46 Page 46 ...
Page 71: ...71 HCD TB20 MEMO ...