Sony CDX-F7500 Service Manual page 19
Fm/mw/lw compact disc player
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Also See for CDX-F7500:
- Operating instructions manual (186 pages) ,
- Service manual (51 pages)
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• IC901 M30823MH-080GP (DISPLAY CONTROL) (KEY BOARD)
Pin No.
Pin Name
I/O
1
SYS CE
I
Main chip enable input
2
(NCO)
O
Not used
3
FL DAT3
O
FL serial data output 3
4
(NCO)
O
Not used
5
FL CLK IN
I
FL serial clock input
6
BYTE
I
Connecting to ground.
7
CNVSS
I
Flash write-in signal input
8
PLL LPF
O
PLL low pass filter connection pin
9
PLL GND
I
Ground
10
RESET
I
CPU reset input
11
XOUT
O
Main clock signal output (8MHz)
12
VSS
—
Ground
13
XIN
I
Main clock signal input (8MHz)
14
VCC
—
Power supply pin (+5V)
15
NMI
I
Non maskable interrupt signal input
16
(NCO)
O
Not used
17
GCP IN
I
GCP pulse interrupt signal input
18, 19
(NCO)
O
Not used
20
GCP OUT
O
GCP pulse signal output
21
LAT
O
FL data LAT output
22
BK
O
FL BK signal output
23
GCP2
O
FL GCP signal output 2
24
(NCO)
O
Not used
25
GCP1
O
FL GCP signal output 1
26
(NCO)
O
Not used
27
GCP4
O
FL GCP signal output 4
28
GCP3
O
FL GCP signal output 3
29
SYS SO
O
Main bus serial data output
30
SYS SI
I
Main bus serial data input
31
SYS CLK
O
Main bus serial clock output
32
(NCO)
O
Not used
33
FL DAT1
O
FL serial data output 1
34
(NCO)
O
Not used
35
FL CLK
O
FL serial clock output
36 to 38
(NCO)
O
Not used
39
HOLD
I
External bus data input (HOLD)
40 to 43
(NCO)
O
Not used
44
WRI/WR
I
External bus data input (WRI/WR)
45 to 59
(NCO)
O
Not used
60
VCC
—
Power supply pin (+5V)
61
(NCO)
O
Not used
62
VSS
—
Ground
63 to 93
(NCO)
O
Not used
94
AVSS
—
Ground
95
(NCO)
O
Not used
96
VREF
—
Reference voltage (+5V)
97
AVCC
—
Power supply pin (+5V)
98
(NCO)
—
Not used
99
FL DAT2
O
FL serial data output 2
100
FL CLK IN
I
FL serial clock input
Pin Description
19
19
CDX-F7500/F7700
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