Technics SJ-HD501 Servise Manual page 50

16.6. IC901 (M30218MAA106): FL DRIVE/SYSTEM CONTROL
Pin Mark I/O
No. Division
1 DO1 I/O
2 DO2 I/O
3 WE I
4 RAS I
5 A9 I
9 A0 I
10 A1 I
~12 ~A3
13 VCC I
14 A4 I
~18 ~A8
22 OE I
23 CAS I
24 DO3 I/O
25 DO4 I/O
26 VSS —
Function
DRAM data 1 in/output
terminal
DRAM data 2 in/output
terminal
DRAM light enable input
terminal
DRAM low address strobe
input terminal
DRAM address 9 input
terminal
DRAM address 0 input
terminal
DRAM address 1~3 input
terminal
Power supply terminal
DRAM address 4~8 input
terminal
DRAM output enable input
terminal (Not used,
connected to GND)
DRAM calam address
strobe input terminal
DRAM data 3 in/output
terminal
DRAM data 4 in/output
terminal
GND terminal
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