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31
SYSTEM CONTROL Section
IC401(2/3)
MASTER CONTROL
X402
32.768kHz
X401
16MHz
M
LED
DRIVER
LED
DRIVER
LED
DRIVER
LED
DRIVER
TC-MECHA
TCM+3.3V
R REC
F REC
PACK
M +10V
PLAY SW
SENSOR OUT
TRGM+
Q321,323
Q322,324
MOTOR
CONTROL
TRIGGER
MOTOR
CONTROL
S401
(TC LID)
IC701
S700
S701
DISPLAY
S702
ROTARY
ENCODER
VOLUME
RING
SW
FUNCTION
KEY
FUNCTION
KEY
FUNCTION
KEY
S730-741
S710-714
S720-727
IC751
Q701
IC731
IC732
IC733
SUB TRAY 1
HEIGHT SENSOR
SUB TRAY 2
HEIGHT SENSOR
SUB TRAY 3
HEIGHT SENSOR
S742
(OUT)
S741
(IN)
(DISC IN DETECT)
LCD777
DATA
DATA
SCK
SCK
STB
STB
Q701
Q760
D701
(POWER)
D760-763,
D765-767
(BACK LIGHT)
LED+7v
Q740-742
Q745
Q744
D741
D742
D743
D746
DISC1
TAPE
•REC
IC701
LOADING MOTOR DRIVER
S728
DISC2
DISC3
M721
(LOADING)
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 ...