Sony SDP-EP9ES Service Manual page 37

Pin No. Pin Name
A13
36
37 A8
A9
38
39 A11
GND
40
41 OE
A10
42
43 DBP
DB7
44
45 DB6
DB5
46
DB4
47
DB3
48
DB2
49
DB1
50
DB0
51
VDD
52
GND
53
VO
54
VI
55
TSTIN3
56
PDO
57
MSYC
58
59 MUTO
VLDY
60
61 LRCK
BCK
62
63 SDO
DASYO
64
65 DAOUT
DAIN
66
TSTIN4
67
TSTIN5
68
C2F1
69
C2F0
70
71 C1F1
C1F0
72
73 DRY
DEN
74
75 ECCK
I/O
O Address output to external RAM. Address 13
O
Address output to external RAM. Address 8
O Address output to external RAM. Address 9
O
Address output to external RAM. Address 11
– Ground
O
Output enable signal to external RAM. Active at "L"
O Address output to external RAM. Address 10
I/O
Data terminal with external RAM. For erasure pointer
I/O Data terminal with external RAM. Data bus 7
I/O Data terminal with external RAM. Data bus 6
I/O Data terminal with external RAM. Data bus 5
I/O Data terminal with external RAM. Data bus 4
I/O Data terminal with external RAM. Data bus 3
I/O Data terminal with external RAM. Data bus 2
I/O
Data terminal with external RAM. Data bus 1
I/O Data terminal with external RAM. Data bus 0
–
Power supply (+5V)
– Ground
O
VCXO output (Not used)
I VCXO input
I
For testing IC (Fixed at "L")
O Phase comparator output (3-state)
O
"H" when AC-3 sync signal. For monitor (Not used)
Muting output. Muting at "H"
O
"H" when "MUTI=H" or not synchronized with AC-3
O Parity flag output. Data is correct when "L". Data may be incorrect if "H" (Not used)
O
L/Rch switching clock. 48 kHz. Lch when "H" (Not used)
O Bit clock. 3.072 MHz (Not used)
O Serial data output (Not used)
O Digital out preamble B identification signal (Not used)
O Digital output
Digital audio interface signal input
I Select a digital output processed inside IC by internal register setting or signal from "DAIN"
and output to "DAOUT" (Not used)
I
For testing IC (Not used)
I
C2 error correction state display. Outputs if corrected properly (Not used)
O
C2 error correction state display. Outputs number of errors at C2 (Fixed at "H")
O
C1 error correction state display. Outputs whether error is present at C1 (Fixed at "H")
O
C1 error correction state display. Outputs number of errors at C1 (Fixed at "H")
O
O
For monitoring error correction (Not used)
O
Error correction sector clock. 576 kHz (Not used)
O
— 60 —
Function Function