Main Board - Sony STR-K670P Service Manual

IC1502 IS61LV6416-10TLT
A4 1
A3 2
A2 3
A1 4
A0 5
CS 6
I/O 0 7
I/O 1 8
I/O 2 9
I/O 3 10
VDD 11
VSS 12
I/O 4 13
I/O 5 14
I/O 6 15
I/O 7 16
WRITE ENABLE
WE 17
A15 18
A14 19
A13 20
A12 21
NC 22
– MAIN Board –
IC501,601,701 uPC2581V-S (TYPE 1)
BIAS CIRCUIT
PROTECTOR
PRE
REG DRIVE
DRIVE
2 3 4 5 6
1 7
IC501,601,701 STK350-530-E (TYPE 2)
DRIVER
1 2 3
CHIP ENABLE
BUFFER
LOW
BYTE
I/O
BUFFER
BUFFER
PRE
DRIVE
DRIVE
8 9 10 11 12 13 14 15
4.7kΩ
STAND-BY
CIRCUIT
PRE
DRIVER
33Ω
4 5 6
ROW/COLUMN
DECODER
64K x 16
MEMORY
ARRAY
SENSE AMP HIGH
& BYTE
WRITE I/O
PRIVER BUFFER
PRE
DRIVER
47kΩ
33Ω
7 8 9 10
STR-K670P
44 A5
43 A6
42 A7
OUTPUT ENABLE
41 OE
BUFFER
BYTE ENABLE 40 BHE
BUFFER
39 BLE
38 I/O 15
37 I/O 14
36 I/O 13
35 I/O 12
34 VSS
33 VDD
32 I/O 11
31 I/O 10
30 I/O 9
29 I/O 8
28 NC
27 A8
26 A9
25 A10
24 A11
23 NC
DRIVER
11 12 13 14 15
Ver. 1.2
29