Sony CHC-TB10 / CHC-TB20 / HCD-TB20 Service Manual ▷ View online
31
31
SYSTEM CONTROL Section
IC401(2/3)
MASTER CONTROL
4
74
73
45
51
48
49
47
67
68
53
52
97
95
94
69
70
10
11
15
13
59
38
90
58
40
X402
32.768kHz
X401
16MHz
9
7
4
2
M
91
2
71
72
76
77
5
7
6
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)
TC HALF/REC
CAPM-CONT
TC PLAY
TC SHUT
TC TRG
TC LID
XCIN
XCOUT
XIN
XOUT
IC701
REMOTE
SENSOR
SENSOR
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
•REC
IC701
LOADING MOTOR DRIVER
RIN
FIN
OUT1
OUT2
SIRCS
POWER KEY
DISPLAY KEY
VOL A
VOL B
KEY1
KEY2
KEY3
T SENS1
T SENS2
T SENS3
OPEN
CLOSE
DISC SENS3
LCD DATA
LCD SCK
LCD STB
STB LED
BACK LIGHT
LED CONT
LED1
LED2
LOAD OUT
LOAD IN
S728
DISC2
DISC3
M721
(LOADING)
32
32
HCD-TB20
7-3. Schematic Diagram BD Section
J
0.01
0.022
680
220k
33k
2.4k
(Page 38)
IC B/D
• See page 50 for Waveforms.
• See page 52 for IC Block Diagram.
33
33
7-4. Printed Wiring Board BD Section
• See page 27 for Circuit Boards Location.
IC103
IC101
IC102
J
(Page 39)
(A-MAX.3)
TP
(RFDC)
TP (TE1)
TP
(FE1)
TP
(FEI)
TP
(RFAC)
TP
(DVC)
Ref. No.
Location
D101
B-3
IC101
C-3
IC102
B-2
IC103
D-2
Q101
C-1
Q102
A-3
• Semiconductor
Location
34
34
HCD-TB20
7-5. Schematic Diagram DRIVER Section
1.3
1.3
1.3
22k
6.8k
100
100
100
100
(Page 38)
IC B/D
• See page 53 for IC Block Diagram.
Click on the first or last page to see other CHC-TB10 / CHC-TB20 / HCD-TB20 service manuals if exist.