Sony XM-1502SX Training Manual page 50

0.2mW
LASER POWER
IC6
SLED
COIL
CD
DRIVE
OPTICAL
UNIT
DAX21EG
IC5
SPIN
DRIVE
IC1
RF AMP
LD
LD CTL
FOCUS
/TRACK
AMP
SERVO BD.
IC2003. IC2003 translates the digital audio data from the ATAPI bus to the main Address/data bus so it is
available for DSP IC4001. Digital Sound Processor IC4001 takes the uncompressed audio and converts it from
the parallel data input on the bus to serial data (SDO) with clock signal to D/A Converter IC371. See Figure 4-14.
From there on to the speakers, the signal is analog.
ZCS3FX
ZCS1FX
INTRQ
IC8
ATAPI
CD ROM
RF,TE, FE
POWER
FIGURE 4-8 - STORAGE DEVICES
CLK
MAIN BD.
XCS4
CN7 CN2002
3
XCS1
4
XCS0
IC2003
10
CPU
INTR
INTERFACE
XCS0
INT
XCS1
HARD
DRIVE
(HDD)
ATAPI
DATA
BUS
CN6 CN2003
PWR
BOARD
CN3001 CN701
48
4. Car Music Storage Unit
FROM CPU IC1010
CS5
XIRQ
IC4001
DSP
MG
MEM
STICK
ADDRESS
DATA BUS
X1RQ1
R
IC4301
USB
INTERFACE
INT1
CN702 CN525
9
P.S.
MAIN_PON
4
5
SUB BD.
+12V BATT.
MEM
STICK
IN
SOCKET
SDO TO D/A IC371
IC4002
EEPROM
DISPLAY ICS
D 5V
PS4100
D I/O
IN
CS2,ACK,RST
FROM
IC1010 CPU
120 IC501
77 81
ACC
4-4A125 11/13/02