7-12. IC PIN FUNCTION DESCRIPTION

• MAINN BOARD IC501 CXP84340-075Q (SYSTEM CONTROLLER)

Pin No.

 

Pin Name

I/O

 

 

Function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 to 5

 

A3 to A7

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

A12

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

A14

O

Address signal output to the static RAM (IC502)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 to 11

 

A11 to A8

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

A13

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

WE

O

Data write enable signal output to the static RAM (IC502)

“L” active

 

 

 

 

 

 

 

 

 

 

14

 

CE

O

Chip enable signal output to the static RAM (IC502) “H” active

 

 

 

15

 

KBCOUT

O

Serial data transfer clock signal output terminal Not used (open)

 

 

 

16

 

KBDOUT

O

Serial data output terminal

Not used (open)

 

 

 

 

17

 

KBDIN

I

Serial data input terminal

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

18

 

FLDATA

O

Serial data output to the FL driver (IC701) and LED driver (IC702)

 

 

 

 

 

 

 

19

 

FLCLK

O

Serial data transfer clock signal output to the FL driver (IC701) and LED driver (IC702)

20

 

LEDLT

O

Serial data latch pulse output to the LED driver (IC702)

“L” active

 

 

21

 

TBLL

O

Table motor drive signal (counterclockwise) output to the CXA1291P (IC503) “H” active

22

 

TBLR

O

Table motor drive signal (clockwise) output to the CXA1291P (IC503)

“H” active

 

 

 

 

 

 

23

 

DRIN

O

Door motor drive signal (door close) output to the CXA1291P (IC503)

“H” active

 

 

 

 

 

 

24

 

DROUT

O

Door motor drive signal (door open) output to the CXA1291P (IC503)

“H” active

 

 

 

 

 

 

 

25

 

ADJ

I

Setting terminal for the test mode

“L”: ADJ mode, Normally: fixed at “H”

 

26

 

LDIN

O

Loading motor drive signal (load-in direction) output to the CXA1291P (IC503)

“H” active

27

 

LDOUT

O

Loading motor drive signal (load-out direction) output to the CXA1291P (IC503)

“H” active

28

 

BUSOUT

O

Sircs remote control signal output for the S-LINK CONTROL A1

“H” active

 

 

 

 

 

 

 

 

29

 

SMUTE

O

Muting on/off control signal output terminal “H” active

Not used (pull up)

 

 

 

 

 

 

 

 

 

30

 

RESET

I

System reset signal input from the reset signal generator (IC505)

“L”: reset

 

 

For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

 

EXTAL

I

Main system clock input terminal (10 MHz)

 

 

 

 

32

 

XTAL

O

Main system clock output terminal (10 MHz)

 

 

 

 

33

 

VSS

—

Ground terminal

 

 

 

 

 

 

34

 

TX

O

Sub system clock output terminal

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

 

TEX

I

Sub system clock input terminal

Not used (fixed at “L”)

 

 

 

 

 

 

 

 

 

 

 

 

 

36

 

AVSS

—

Ground terminal (for A/D converter)

 

 

 

 

 

 

 

 

 

 

 

 

37

 

AVREF

I

Reference voltage (+5V) input terminal (for A/D converter)

 

 

 

38

 

D.SENS

I

Inputs the disc sensor (Q801) detection signal (A/D input)

 

 

 

 

39

 

DOORSW

I

Door open/close detect switch (S810) input (A/D input)

“L”: open

 

 

40

 

CD1/2/3

I

COMMAND MODE switch (S901) input terminal (A/D input)

 

 

 

 

“L”: CD1, “H”: CD3 (CD2: center voltage input)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

SW

I

Destination setting terminal (A/D input) Fixed at “L” in this set

 

 

 

 

 

 

 

 

 

42

 

KEY3

I

Key input terminal (A/D input) p, P, á, CLEAR, CHECK, ± AMS, - AMS, PUSH

 

ENTER keys input and rotary encoder jog dial pulse input (S611 to 617 and RE601)

 

 

 

 

 

 

 

 

 

 

 

43

 

KEY2

I

Key input terminal (A/D input) ¤ OPEN/CLOSE, INPUT, MEMO SEARCH keys input and

 

rotary encoder jog dial pulse input (S621 to 623 and RE601)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

 

KEY1

I

Key input terminal (A/D input)

 

 

 

 

 

 

I/u, TIME/TEXT, GROUP FILE, GROUP 8/7/6/5 keys input (S731 to 737)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

 

KEY0

I

Key input terminal (A/D input)

 

 

 

 

 

 

REPEAT, PROGRAM, SHUFFLE, CONTINUE, GROUP 4/3/2/1 keys input (S721 to 728)

 

 

 

 

 

 

 

 

 

 

 

 

46

 

BUSIN

I

Sircs remote control signal input for the S-LINK CONTROL A1

“L” active

 

 

 

 

 

 

 

47

 

AMUTE

O

Muting on/off control signal output to the CXD2587Q (IC101) “H”: muting on

 

– 47 –

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Sony Ericsson CDP-CX220 service manual IC PIN Function Description, Pin No Pin Name Function
Page 40 Page 42

CDP-CX220 specifications

The Sony Ericsson CDP-CX220 is a notable model within the realm of compact disc players, designed to blend advanced technology with user-friendly features. Launched in the late 90s, this device showcases Sony's commitment to delivering high-quality audio experiences through its innovative engineering and design.

One of the standout features of the CDP-CX220 is its impressive capacity. This compact disc player can hold up to 200 CDs, thanks to its innovative carousel system. This allows users to enjoy extended listening sessions without the need to change discs frequently, making it particularly appealing for audiophiles and casual listeners alike. The unit is designed to be both functional and space-efficient, fitting seamlessly into various media setups.

The CDP-CX220 employs Sony’s advanced Digital Sound Processing (DSP) technology, which enhances sound quality by providing clarity and depth to audio playback. This feature is particularly advantageous for those who appreciate detailed soundscapes, as it minimizes distortion and optimizes audio fidelity.

In terms of connectivity, the CDP-CX220 comes equipped with multiple outputs, including digital coaxial and optical connections. This provides users with the flexibility to integrate the player into a wider home audio setup, allowing for high-quality sound transfers to amplifiers and surround sound systems. Additionally, the CDP-CX220 supports standard RCA outputs for connecting to traditional stereo systems.

Navigating through stored CDs is made easy with the CDP-CX220’s user-friendly interface. It includes a remote control, allowing users to access playlists and selections from a distance. The intuitive display provides clear information about track numbers and playback status, ensuring a smooth and enjoyable listening experience.

Furthermore, the player incorporates various playback modes, including shuffle and repeat functions, enabling personalized listening experiences. Users can tailor their listening sessions to suit their moods, whether they desire randomness or continuity in their music selection.

Overall, the Sony Ericsson CDP-CX220 exemplifies a fusion of technology and practicality, designed to cater to the diverse needs of music lovers. Its impressive capacity, superior sound processing, versatility in connectivity, and user-friendly features solidify its reputation as a robust and reliable compact disc player that has stood the test of time.
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