Sony MAP-S1 Service Manual page 75

• IC Block Diagrams
– MAIN Board –
IC001 MM3526A33NRE
VDD 1
GND 2
CE 3 BIAS
IC201 TCA6424ARGJR
GND 25
ADDR 26
VCCP 27
POWER-ON
RESET
RESET 28
SCL 29 INPUT I2C BUS
FILTER CONTROL
SDA 30
VCCI 31
INTERRUPT
INT 32 LP FILTER
LOGIC
IC204 BU4229F-TR
GND 1
VREF
+
–
VDD 2
THERMAL CURRENT
SHUTDOWN LIMIT
+
VREF
24 23 22 21 20
24 Bits
SHIFT I/O
REGISTER PORT
WRITE PULSE
READ PULSE
1 2 3 4 5 6 7 8
4 VOUT
3 CT
5 VOUT
4 CS
19 18 17
16 P17
15 P16
14 P15
13 P14
12 P13
11 P12
10 P11
9 P10
IC501 MM1701CHBE
VOUT 1
CURRENT
LIMITTER
NC 2
GND 3
CN 4
MAP-S1
BIAS
DRIVER
REFERENCE
THERMAL
SHUTDOWN
8 VIN
7 NC
6 NC
5 CONT
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