Sony CMT-HX3 Service Manual page 97

2-5. SCHEMATIC DIAGRAM – MAIN Board (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
(Refer to page 40
HP GND
on service manual)
HP R
CN308
21P(HX7)
25P(HX3/HX5)
GATE
ST_REQ
GPIN/AIN
SFSY/BCKIN
ZDET/LRCKIN
CD DRIVE MUTE
MGND C303 0.1
VM(7V) C305 10 50V
DVDD(3.3V) C306 0.1
D-OUT
DGND
SBSY
REQ (HX3/HX5) R491 100k
(Refer to page 25 CCE
on service manual)
BUCK
BUS3
BUS2
BUS1
BUS0
RST
AGND
L-OUT R103 1k
DACGND
R-OUT R203 1k
AVDD(3.3V)
EP102
C355
(CHASSIS) 0.1
(HX3/HX5)
CN307
19P
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
DVDD3.3V
DVSS
LRCK
USB-RST
ST-REQ
REQ
(Refer to page 27 GATE
on service manual)
A-IN
BCK
USB-SI(RXD)
USB-SO(TXD)
DI(CTS)
DO(RTS)
HCD-HX3/HX5/HX7
AINL
AINR
69
68
(HX3/HX5)
(SUFFIX-13,-21)
GATE
ST_REQ
(SUFFIX-14,-22)
GPIN/AIN
SFSY/BCKIN
ZDETLRCKIN
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
ZDETLRCKIN
27
ST_REQ
REQ1
GATE
GPIN/AIN
SFSY/BCKIN
35
36
38
37
C251
1
50V
INPUT SELECTOR,
ELECTRICAL VOLUME,
SURROUND/TONE CONTROL -AUDIO IN-
IC304
R2S15904SP
Q312
KTA1271Y-AT
D211 D212
1N4002-B5 1N4002-B5
Q312,313,325,326
B+ SWITCH
C252
(HX5/HX7) 1
50V
Q313
RT1N141C-TP-1
R399
470
Q326
2SC3052F
Q325
2SC3052F
(SUFFIX-13,-21)
(SUFFIX-14,-22)
D210 R352
1SS355W 100
(HX7)
C370
0.1
JR105 JR104
0 0
(SUFFIX-13,-21) DATA BUS DATA BUS
SWITCH SWITCH
IC311 IC312
(SUFFIX-14,-22)
TC74HC4066AFT TC74HC4066AFT
JR106 JR107
0 0
(HX7)
R396
10k
5 5
R257 R258 R259 R260
47k 10k 47k 10k
C250 C249 C149 C150 C151 C152 C253 C254
1 1 1 1 1 1 2.2 2.2
50V 50V 50V 50V 50V 50V 50V 50V
50
51
-CD- -TU-
-USB-
C268
0.082
C106 C206 C269
4.7 4.7 10
C263 C265
50V 50V 50V
0.047 0.047
C264 C266
0.01 0.01
R107 R207
47k 47k (SUFFIX-13,-21)
R108 R208
220 220
(SUFFIX-14,-22)
Q321
RT1N141C
INVERTER
R333 C371
10k 0.1
X1
(HX7)
Y1
REQ
JR102
JR108 0
0
C372
0.1
SIGNAL
SELECTOR
IC313
TC74VHC157FT
JR110
JR111 0
0
87
90
(HX7)
89
88
18
86
HCD-HX3/HX5/HX7
CN320
5P
OPEN SW
CLOSE SW
TO
MOTOR BOARD
DGND
CN001
CLOSE
CLOSE (Refer to page 35
on service manual)
OPEN
OPEN
C322
0.1
B3
B4
B1
B2
(Page 3)
C2
C1
C3
C4
(Page 4)
EP101
C323
0.1
(CHASSIS)
R235
47k
R135
47k
R234
2.2k
R134
2.2k
(SUFFIX-13,-21)
(SUFFIX-14,-22)
CN318
HX3:CND/HX5:CND,
9P
AUS,KR/HX7
11P(HX3:AEP/HX5:AEP,UK)
L OUT
+9V
R OUT
FM 75Ω
COAXIAL
AGND
TUNER
NC
(FM/AM)
ST CE ANTENNA
SUPPLIED WITH
ST DIN
THE ASSEMBLED
ST CLK BLOCK
DO/STEREO AM
RDS CLK
RDS DATA
(HX3:AEP,HX5:AEP,UK)