Sony Ericsson CDP-XE570 Section Electrical Block Checking, RF Level Check, Balance Check

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CDP-XE570

SECTION 5

ELECTRICAL BLOCK CHECKING

Note:

1.CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.

2.Use PATD-012 disc (3-702-101-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10Mimpedance.

4.Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

1 track jump waveform

0V

Center of the waveform

B

A (DC voltage)

RF Level Check

oscilloscope

BD board

TP (RF AC)

TP (VC)

Procedure :

1.Connect oscilloscope to test point TP (RF AC) and TP (VC) on

BD BOARD.

2.Connect the test point TP1 (ADJ) on DISPLAY BOARD to the ground with a lead wire.

3.Turn Power switch on.

4.Put disc (PATD-012) in to play the number five track.

5.Press the [CLEAR] buton and select the RFCK function.

6.Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.

Note:

A clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV

 

 

TIME/DIV : 500ns

 

level : 1.35 ± 0.4 Vp-p

E-F Balance (1 Track Jump) Check

oscilloscope

BD board

TP (TE1)

TP (VC)

Procedure :

1.Connect oscilloscpe to test point TP (TE1) and TP (VC) on

BD BOARD.

2.Turn Power switch on.

3.Put disc (PATD-012) in to play the number five track.

4.Press the X (Pause) button. (Becomes the 1 track jump mode)

5.Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following :

A/B x 100 = less than ± 22%

level : 1.15 ± 0.5Vp-p

symmetry

E-F Balance Check

oscilloscope

BD board

TP (TE1)

TP (VC)

Procedure :

1.Connect the test point TP1 (ADJ) on DISPLAY BOARD to the ground with a lead wire on main board.

2.Connect oscilloscpe to test point TP (TE1) and TP (VC) on

BD BOARD.

3.Turn the Power switch on to set the ADJ mode.

4.Put disc (PATD-012) in to play the number five track.

5.Press the [TIME/TEXT] button. (The tracking servo are turned OFF.)

6.Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following :

A/B x 100 = less than ± 22%

Traverse waveform

 

Center of the waveform

 

B

0V

A (DC voltage)

 

 

level : 1.15 ± 0.5 Vp-p

7.Press the [TIME/TEXT] button. (The tracking servo are turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 6.

Traverse waveform

 

C (DC

0V

voltage)

Tracking servo

Tracking servo

OFF

ON

8.Disconnect the lead wire of TP1 (ADJ) connected in step 1.

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Contents Specifications CDP-XE570CDP-XE570 HOW to Open the Disc Tray When Power Switch Turns OFF CDP-XE570 Section Servicing NoteDisplayed Contents Restrictions in CD-TEXT DisplayRecorded contents DisplayFront Panel Section GeneralButton Descriptions Loading Panel CDP-XE570 Section DisassemblyBase Unit BU-5BD27 Check Mode CDP-XE570 Section Test ModeAfadj Mode Function of Buttons ADJ ModeTable of Button Operations in ADJ Mode Display Board Conductor sideBalance 1 Track Jump Check CDP-XE570 Section Electrical Block CheckingRF Level Check Balance CheckBD Board Side B CDP-XE570 Section Diagrams Circuit Boards LocationBD Board Schematic Diagram Loading Motor SectionWaveforms Display BoardLocation Printed Wiring Board BD SectionSemiconductor IC B/D 1616 CDP-XE570 IC502 CDP-XE570 IC Pinfunctions Pin No Pin Name FunctionIC Block Diagrams IC101 CXD2587Q BD BoardIC131 CXA2518N-T4BD Board Front Panel and Case Section CDP-XE570 Section Exploded Views1225 CD Mechanism Section CDM66-5BD27 155 154 Base Unit Section BU-5BD27161 151 152 158 153 154 159CDP-XE570 Section Electrical Parts List ResistorsSWITCH, Keyboardm CDP-XE570 Display Headphone KEYCDP-XE570 KEY Loading Main PST600D-TMain CDP-XE570 Power SW DTA144ESA-TPCDP-XE570 Revision History

CDP-XE570 specifications

The Sony Ericsson CDP-XE570 is a significant entry in the realm of compact disc players, demonstrating the brand's commitment to audio fidelity and user-friendly design. Launched in the late 1990s, the CDP-XE570 became known for its impressive sound quality, making it a popular choice among audiophiles and casual listeners alike.

One of the standout features of the CDP-XE570 is its precision-engineered digital-to-analog converter (DAC). This technology ensures that the audio playback is crisp, clear, and faithful to the original recording. The player supports various disc formats, including standard CDs, CD-R, and CD-RW, providing users with flexibility in their music choices. The presence of a high-quality laser pickup helps to minimize errors in playback, even for discs that may be scratched or smudged, enhancing the listening experience.

In terms of design, the CDP-XE570 boasts a sleek and compact form factor, allowing it to fit seamlessly into any home audio setup. Its straightforward control interface makes navigation easy, with well-placed buttons for play, pause, skip, and stop functions. The LCD display is clear and informative, providing readouts for track numbers and remaining playtime, which assists users in managing their music.

Another noteworthy characteristic of the CDP-XE570 is its compatibility with a variety of audio output options. The player includes both analog and digital outputs, allowing users to connect it to a range of audio systems, from vintage receivers to modern digital sound processors. This versatility ensures that the player can deliver high-quality sound whether paired with simple stereo systems or complex home theater setups.

Additionally, the CDP-XE570 incorporates advanced features like programmed playback and shuffle options, enabling users to customize their listening experience. A timer function is also included, which allows the player to schedule automatic playback, adding convenience for users who want to enjoy their favorite music at specific times.

Overall, the Sony Ericsson CDP-XE570 is more than just a compact disc player; it represents a blend of innovative technology and user-centric design. Its combination of high-quality audio playback, versatile connectivity options, and intuitive controls makes it a standout choice for anyone looking to enhance their music listening experience. With its reliable performance, the CDP-XE570 continues to hold a special place in the hearts of audio enthusiasts.