Sony HCD-SBT100 Service Manual page 52

HCD-SBT100/SBT100B/SBT300W/SBT300WB
• IC Block Diagrams
– MAIN Board –
IC103, 105, 107, 905, 3001 MM3411A33NRE
VDD 1
GND 2
REFERENCE
CE 3
IC202 TC74VHC4066AFK (EK)
1I/O 1
1O/I 2
2O/I 3
2I/O 4
2C 5
3C 6
GND 7
IC308, 309 TC7WBL3305CFK, RS
OE1 1
A1 2
B1 3
GND 4
52
CURRENT
LIMIT
+
VOLTAGE
BIAS
14 VCC
13 1C
12 4C
11 4I/O
10 4O/I
9 3O/I
8 3I/O
8 VCC
7 OE2
6 B2
5 A2
5 VOUT
4 NC