Sony DPP-MS300 Service Manual page 54

– MP-40 Board –
IC1531 SN74LVCC4245APWR
VCCA 1
T/R
2
AO 3
A1
4
A2 5
A3 6
A4 7
A5 8
A6 9
A7
10
GND 11
GND 12
– MD-40 Board –
IC1900 LB1644
16
INPUT LOGIC BLOCK
1
IC1532 – 1534 74VHC244MTCX
IC1535 74VHCT244MTCX
24 VCCB
23 VCCB
OE
22
21 BO
20 B1
B2
19
B3
18
B4
17
B5
16
15 B6
14 B7
13 GND
15 14
PRE
DRIVER
2 3 4
20 19 18 17 16
1 2 3 4 5
13 12
PRE
DRIVER
TSD
6
5
5-57
15 14 13 12 11
6 7 8 9 10
11 10
9
INPUT LOGIC BLOCK
7
8