Read Sony STR-DA90ESG Service Manual online
– 15 –
DIGITAL BOARD IC3308 SN-PM4007A (DOLBY (AC-3) DEMODULATOR)
Pin No.
Pin Name
I/O
Function
1
GND
—
Ground terminal
2
VDD
—
Power supply terminal (+5V)
3
RESET
I
Reset signal input from the master controller (IC3413) “L”: reset
4
OSCON
I
Oscillation on/off control signal input terminal “H”: on (fixed at “H”)
5
DATA
I
Test terminal Not used (fixed at “L”)
6
MCK
I
Test terminal Not used (fixed at “L”)
7
MLTB
I
Test terminal Not used (fixed at “L”)
8
IDST
O
Test terminal Not used (open)
9
IDCK
O
Test terminal Not used (open)
10
IDO
O
Test terminal Not used (open)
11
TM0
I
Test terminal Not used (fixed at “L”)
12
ECCK
O
Test terminal Not used (open)
13
DEY
O
Test terminal Not used (open)
14
DRY
O
Test terminal Not used (open)
15
DRY
O
Test terminal Not used (open)
16
TM1
I
Test terminal Not used (fixed at “L”)
17
A0
O
18
A1
O
19
A2
O
20
A3
O
21
A4
O
22
A5
O
23
TM2
I
Test terminal Not used (fixed at “L”)
24
TM3
I
Test terminal Not used (fixed at “L”)
25
XOUT
O
System clock output terminal Not used (open)
26
XIN
I
System clock input terminal Not used (fixed at “L”)
27
NEXT
I
Test terminal Not used (fixed at “L”)
28
GND
—
Ground terminal
29
VDD
—
Power supply terminal (+5V)
30
A6
O
Address signal output to the S-RAM (IC3309)
31
A7
O
Address signal output to the S-RAM (IC3309)
32
GND
—
Ground terminal
33
VDD
—
Power supply terminal (+5V)
34
A12
O
Address signal output to the S-RAM (IC3309)
35
A14
O
Address signal output to the S-RAM (IC3309)
36
WE
O
Write enable signal output to the S-RAM (IC3309) “L” active
37
A13
O
38
A8
O
Address signal output to the S-RAM (IC3309)
39
A9
O
40
GND
—
Ground terminal
41
A11
O
Address signal output to the S-RAM (IC3309)
42
OE
O
Output enable signal output to the S-RAM (IC3309) “L” active
43
A10
O
Address signal output to the S-RAM (IC3309)
44
D7
I/O
45
D6
I/O
Address signal output to the S-RAM (IC3309)
Two-way data bus with the S-RAM (IC3309)
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