Sony CDP-CX240 Service Manual page 40

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• IC501 SYSTEM CONTROL (CXP84340-094Q)
Pin No. Pin Name
1 A3
2 A4
3 A5
4 A6
5 A7
6 A12
7 A14
8 A11
9 A10
10 A9
11 A8
12 A13
13 WE
14 CE
15 KBCOUT
16 KBDOUT
17 KBDIN
18 FLDATA
19 FLCLK
20 LEDLT
21 TBLL
TE
22 TBLR
L 13942296513
23 DRIN
24 DROUT
25 ADJ
26 LDIN
27 LDOUT
28 BUSOUT
29 SMUTE
30 RST
31 EXTAL
32 XTAL
33 VSS
34 TX
35 TEX
36 AVSS
37 AVREF
38 D.S
39 DOORSW
40 CD 1/2/3
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I/O
O SRAM address
O SRAM address
O SRAM address
O SRAM address
O SRAM address
SRAM address
O
O SRAM address
O SRAM address
O SRAM address
O SRAM address
O SRAM address
O SRAM address
SRAM writing
O
O SRAM enable
O Keyboard clock output
O Keyboard data output
Keyboard data input
I
O Data for fluorescent indicator driver IC
O Clock for fluorescent indicator driver IC
I Latch for LED driver IC
O Table motor PWM output for left turn
O Table motor PWM output for right turn
O Door close output
O Door open output
I Test mode pin
O Loading motor PWM output for inside direction
O Loading motor PWM output for outside direction
O CONTROL A1 out
O Zero mute disenble output
I Reset input L: Reset
X'tal Oscillation (10MHz)
O
I X'tal Oscillation (10MHz)
– Connect to ground
– Not used
Connect to ground
–
– Connect to ground
– Connect to +5V
I Disc sensor input
Front door switch
O
I Command mode switch
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8
Function
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3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
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9 9
9 9