Schematic Diagram - Main Section (3/3) - Sony CMT-HX3 Service Manual

2-6-10. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
(3/3)
CN301
9P
AUDIO IN L R101 4.7k
AUDIO IN GND R102 47k
AUDIO IN R R202 47k
AUDIO IN DET R201 4.7k
HP DET
DGND
HP L
(Page 38)
HP GND
HP R
CN308
27P
DATA
CLOCK
GATE
ST_REQ
GPIN/AIN
SFSY/BCKIN
ZDET/LRCKIN ZDETLRCKIN
CD DRIVE MUTE
MGND C303 0.1
VM(7V) C305 10 50V
DVDD(3.3V) C306 0.1
D-OUT
DGND
SBSY
REQ R491 100k
(Page 31)
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
RST
AGND
L-OUT
R103 1k
DACGND
R-OUT
R203 1k
AVDD(3.3V)
EP102
C355
(CHASSIS) 0.1
CN315
21P
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
DVDD3.3V
DVSS
LRCK
ZDETLRCKIN
USB-RST
ST-REQ
REQ
GATE
A-IN
(Page 41)
BCK
USB-SI(RXD)
USB-SO(TXD)
DI(CTS)
DO(RTS)
CLOCK
DATA
HCD-HX3/HX5/HX7
• See page 46 for IC Block Diagrams.
AINL
AINR
69
68
DATA
CLOCK
GATE
ST_REQ
GPIN/AIN
SFSY/BCKIN
22
LOADING MOTOR DRIVE
IC320
BA6956AN
19
REQ
R398
47k
XCCE
BUCK
R385
BUS3 10k
BUS2
BUS1
BUS0
25
L-OUT
R405 R406 R407
1k 0 1k
R-OUT
Q327
KTA1271Y-AT
R347
47k
Q327,329,330
R341 R346
B+ SWITCH
CCE 470 10k
BUCK1
BUS3-1 Q330
2SC3052F
BUS2-1
BUS1-1 28
Q329
RT1N141C D213
BUS0-1
R408 1N4002-B5
10k
27
ST_REQ
REQ1
GATE
GPIN/AIN
SFSY/BCKIN
35
36
38
37
R396
CLOCK
10k
DATA
C251 C250
1 1
50V 50V
INPUT SELECTOR,
ELECTRICAL VOLUME,
SURROUND/TONE CONTROL -AUDIO IN-
IC304
R2S15904SP
Q312
KTA1271Y-AT
D211 D212
1N4002-B5 1N4002-B5
C106
4.7
Q312,313,325,326 50V
B+ SWITCH
Q313
RT1N141C-TP-1
R399
470
R108
220
Q326
2SC3052F
Q325
2SC3052F
D210 R352
1SS355W 100
C370
0.1
DATA BUS DATA BUS
SWITCH SWITCH
IC311 IC312
TC74HC4066AFT TC74HC4066AFT
35 35
R257 R258 R259 R260
47k 10k 47k 10k
C249 C149 C150 C151 C253 C254
1 1 1 1 2.2 2.2
50V 50V 50V 50V 50V 50V
50
51
-CD- -TU-
-USB-
C268
0.082
C206 C269
4.7 10
C263 C265
50V 50V
0.047 0.047
C264 C266
0.01 0.01
R107 R207
47k 47k
R208
220
Q321
RT1N141C
INVERTER
C323
0.1
R333 C371
10k 0.1
X
Y
JR102
0 R235
47k
C372
0.1
R135
47k
R234
2.2k
R134
SIGNAL 2.2k
SELECTOR
IC313
TC74VHC157FT
87
90
89
88
HCD-HX3/HX5/HX7
CN320 CN001 S001
5P 5P
DISC TRAY
OPEN SW OPEN SW
OPEN/CLOSE DETECT
CLOSE SW CLOSE SW
OPEN
DGND DGND
CLOSE CLOSE
CLOSE
CLOSE
OPEN OPEN OPEN
C322
0.1
M001
(LOADING)
B3
B4
B1
B2
(Page 33)
C2
C1
C3
C4
(Page 34)
EP101
(CHASSIS)
JR115
0
CN318
9P
L OUT
+9V
FM 75Ω
R OUT COAXIAL
TUNER
AGND
(FM/AM)
NC
ANTENNA
SUPPLIED WITH
ST CE
THE ASSEMBLED
BLOCK
ST DIN
ST CLK
AM
DO/STEREO