Main Board - Sony MDS-JB730 Service Manual

– MAIN Board –
IC310 M5293L
GND
2
+
REFERENCE
ON/OFF 4 –
VOLTAGE
OVERHEAT
PROTECTION
IN 1
IC321 AK4524
VCOM
1
AINR 2
AINL
3
VREF 4
AGND 5
VA 6
TEST 7
XTAO 8
CLOCK
GENERATOR
XTAI 9
& DIVIDER
XTALE 10
H.P.F.
LRCK 11
D-ATT
AUDIO
BICK 12
INTERFACE
SDTO 13
CONTROLLER
D-ATT,
SDTI 14
S-MUTE
5k
REFERENCE
5
VOLTAGE
27k
3 OUT
OVERCURRENT
LIMITTER
A/D D/A
CONVERTER CONVERTER
BLOCK
BLOCK
CONTROL
REGISTER
INTERFACE
IC431 LA5632
PH5 1
STBY 2
V 3
CC
ANA5
4
SYS3.3 5
B.BAK 6
AC
7
CD1 8
P. DOWN 9
GND 10
CD2 11
S. RESET 12
AOUTR+
28
27 AOUTR–
26 AOUTL+
25 AOUTL–
24 DGND
23
VD
22 VT
21 CLKO
20 M/S
19 PD
18 CIF
17 CS
16
CCLK
15 CDTI
IC471 LB1641
T.S.D
MOTOR
DRIVE
2 3
1 4
– 57 –
+
–
+
–
–
+
+
–
3.3V
–
DELAY
CIRCUIT
+
–
DELAY
+
CIRCUIT
VREF
FWD/REV/STOP
CONTROL LOGIC
5 6 7 8 9
O.C.P
MOTOR
DRIVE
10