Schematic Diagram - Main Section (1/4) - Sony CMT-BX1 Service Manual

HCD-BX5BT/CBX1/CBX3
6-14. SCHEMATIC DIAGRAM – MAIN Section (1/4) –
(CBX3)
CN304
19P
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
DVDD 3.3V
DVSS
LRCK
USB-RST
ST-REQ
REQ
GATE
(Page 29)
A-IN
BCK
USB-SI
USB-SO
DI
DO
21P(BX5BT/CBX1)
25P(CBX3)
GATE
ST_REQ
GPIN/AIN
SFSY/BCKIN
ZDET/LRCKIN
CD DRIVE MUTE
MGND
VM(7V)
DVDD(3.3V)
D-OUT
DGND
SBSY
REQ
CCE
BUCK
(Page 27)
BUS3
BUS2
BUS1
BUS0
RST
AGND
L-OUT
DACGND
R-OUT
AVDD(3.3V)
CN311
5P
OPEN OPEN
M001
CLOSE CLOSE
(LOADING)
DGND DGND
S001
CLOSE CLOSE SW CLOSE SW
CD TRAY
OPEN SW OPEN SW
OPEN/CLOSE OPEN
DETECT
CN001
5P
HCD-BX5BT/CBX1/CBX3
• See page 46 for IC Block Diagrams.
(1/4)
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
LRCK
40
ST-REQ
REQ
GATE
A-IN
BCK
35
36
38
37
CN305
(CBX3) GATE
ST-REQ
C355
0.1
A-IN
BCK
R322
100
LRCK
72
C391
470
10V
L301
19
(CBX3) C320 100k REQ-1
CCE-1
BUCK-1
C361
0.1
BUS3-1
BUS2-1
BUS1-1
BUS0-1
71
C330 0.1 R102
C348 0.1
R202
C366 0.1
R472 1k
R477 1k
REQ-1
JR221
0
(BX5BT/CBX1)
(CBX3)
C347 C354
0.1 0.1
DATA SELECTOR BUS SWITCH
IC323 IC322
TC74VHC157FT TC74HC4066AFT
JR223 JR222
(BX5BT/CBX1)
0 0
(CBX3)
C356
R310 0.1
100
Q391
KTC3203Y-A
Q392
KTC3203Y-A Q314
RT1P441C
Q302,303,390,392
+3.3V REGULATOR
Q390
Q314,318,391
KTC3205Y-A
+3.3V REGULATOR
Q318
R344 RT1N141C
100
Q303
RT1P441C
4.7k
R103 47k
4.7k R203 47k
Q302
RT1N141C-TP-1
34 34
JR211 JR213
(BX5BT/CBX1) 0 0
C346
0.1
BUS SWITCH
IC321
TC74HC4066AFT
(BX5BT/CBX1)
JR214 JR219
0 0
R317
47k
LOADING MOTOR DRIVE
IC311 Q393
BA6956AN 2SA1235TP-
VOLTAGE DETECT
R306
22k
R314
R308
D318 D321
1N4002-B5 1N4002-B5
R312
R307
1k
C319
D304
220
UDZW-TE17-3.9B
10V
R426 R408
10k 2.2k
Q321
RT1N141C
INVERTER
R339
10k
R423
100
D306
1SS355W
R321
47k
R315
100k
47
C324
100
47 10V
47
DGND
LCD VDD
DACGND
A
(Page
+9V
35)
CD-L
CD-R
(Page 36)