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SONY CDPCX53
Manual de Servicio


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  • Contiene diagramas del circuito
  • Descargable
  • Formato PDF
  • Manual completo
  • Idiomas: English
Precio: $4.99

Descripción del SONY CDPCX53 Manual de Servicio

Manual de servicio completo en formato digital (archivo PDF). Los manuales de servicio por lo general contienen diagramas de circuitos, tarjetas de circuitos impresos, consejos para reparación, diagramas de cableado, diagramas de bloque y lista de refacciones. El Manual de Servicio (a veces llamado Manual de Reparación) es usado principalmente por los técnicos.

Si tan solo quiere saber cómo utilizar su televisión, reproductor de vídeo, reproductor de mp3, etc. Quizá lo que necesita es el Manual del Propietario. Después de colocar la orden le enviaremos las instrucciones de descarga a su dirección de e-mail.

The manual is available in languages: English

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TEXT_PDF_SNIPPET
SECTION 6 ELECTRICAL ADJUSTMENTS
Note :

1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10M� impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. S Curve Check
oscilloscope BD board TP (FE) TP (VC) + �

10. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. 11. Turn OFF the power, and remove the lead wire connected at step 7.
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 : 1.6 ± 0.3 Vp-p
0.2

Procedure : 1. Press the I/u button and turn ON the power supply. 2. Open the front cover, and press the [PLUS ONE] button. 3. Set the disc (YEDS-18) into the �PLUS ONE� slit. 4. Close the front cover, and chuck the disc. 5. Press the I/u button and turn OFF the power. 6. Connect the oscilloscope to TP (FE) of the BD board. 7. Connect TP (ADJ) of the DISPLAY board and the ground with a lead wire. 8. Press the I/u button and turn ON the power. 9. The first track will be played back automatically. When the [CHECK] button is pressed, �S JI� will be displayed on the fluorescent indicator tube, and focus search will be repeated. 10. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 1.8 ± 0.6 Vp-p.
S-curve waveforms symmetry

E-F Balance (Traverse) Check The procedure for this checking method differs for when a general remote control unit is used and not used.
oscilloscope BD board TP (TE) TP (VC) + �

A B

within 1.8 ± 0.6Vp-p

When a general remote commander is used: 1. Press the I/u button and turn ON the power supply. 2. Open the front cover, and press the [PLUS ONE] button. 3. Set the disc (YEDS-18) into the �PLUS ONE� slit. 4. Close the front cover, and chuck the disc. 5. Press the I/u button and turn OFF the power. 6. Connect the oscilloscope to TP (TE) of the BD board. 7. Connect TP (ADJ) of the DISPLAY board and the ground with a lead wire. 8. Press the I/u button and turn ON the power. 9. Playback the fifth track of the disc. 10. Press the [3] button on the remote commander. (The tracking servo and the sledding servo are turned OFF.) 11. 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 ± 10%
Traverse waveform Center of the waveform

11. Turn OFF the power, and remove the lead wire connected at step 7.
Note: � Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. � Take sweep time as long as possible and light up the brightness to obtain best waveform.

B A (DC voltage) 0V

RF Level Check
oscilloscope (AC range) BD board TP (RF) TP (VC) + �

level : 1.3 ± 0.5 Vp-p

12. Press the [8] button on the remote control unit. (The tracking servo and sledding servo are turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 11.
Traverse waveform

Procedure : 1. Press the I/u button and turn ON the power supply. 2. Open the front cover, and press the [PLUS ONE] button. 3. Set the disc (YEDS-18) into the �PLUS ONE� slit. 4. Close the front cover, and chuck the disc. 5. Press the I/u button and turn OFF the power. 6. Connect the oscilloscope to TP (RF) of the BD board. 7. Connect TP (ADJ) of the DISPLAY board and the ground with a lead wire. 8. Press the I/u button and turn ON the power. 9. Playback the fifth track of the disc.

0V

C (DC voltage)

Tracking servo Sled servo OFF

Tracking servo Sled servo ON

13. Turn OFF the power, and remove the lead wire connected at step 7.

� 15 �

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