Sony cdp xb 920

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Ñ 2 Ñ This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. TABLE OF CONTENTS 1. SERVICING NOTE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááá 5 2. GENERAL ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááááááá 6 3. DISASSEMBLY 3-1. Slide Rack ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááá 8 3-2. Front Panel ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááá 8 4. TEST MODE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááá 9 5. ELECTRICAL BLOCK CHECKING ááááááááááááááááááááááááááááá 11 6. DIAGRAMS 6-1. Circuit Boards Location áááááááááááááááááááááááááááááááááááááááááááááá 13 6-2. Block Diagram ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááá 15 6-3. Schematic Diagram Ñ Main Section (1/2) Ñ áááááááááááá 17 6-4. Schematic Diagram Ñ Main Section (2/2) Ñ áááááááááááá 19 6-5. Printed Wiring Board Ñ Main Section Ñ áááááááááááááááááá 21 6-6. Schematic DiagramÑ Display Section Ñ áááááááááááááááááá 23 6-7. Printed Wiring Board Ñ Display Section Ñ áááááááááááááá 25 6-8. Schematic Diagram Ñ Power section Ñ áááááááááááááááááááá 27 6-9. Printed Wiring Board Ñ Power section Ñ ááááááááááááááááá 29 6-10. Schematic Diagram Ñ Servo section Ñ ááááááááááááááááááááá 31 6-11. Printed Wiring Board Ñ Servo section Ñ áááááááááááááááááá 33 6-12. Schematic Diagram Ñ Motor section Ñ áááááááááááááááááááá 35 6-13. Printed Wiring Board Ñ Motor section Ñ ááááááááááááááááá 36 6-14. IC Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááá 37 6-15. IC Pin Function Description áááááááááááááááááááááááááááááááááááááááá 39 7. EXPLODED VIEWSáááááááááááááááááááááááááááááááááááááááááááááááááá 43 8. ELECTRICAL PARTS LIST ááááááááááááááááááááááááááááááááááááááááá 48 The laser component in this product is capable of emitting radiation exceeding the limit for Class 1. SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY MARK ! OR DOT- TED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO- NENTS WITH SONY PARTS WHOSE PART NUM- BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Notes on chip component replacement ¥ Never reuse a disconnected chip component. ¥ Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing ¥ Keep the temperature of soldering iron around 270ûC during repairing. ¥ Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). ¥ Be careful not to apply force on the conductor when soldering or unsoldering.This caution label is located inside the unit. CAUTIONUse of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. MODEL IDENTIFICATION - BACK PANEL - 4-997-198-0: XB920 (AEP) model 4-997-198-1: XB920E (UK) model 4-997-198-3: XB920E (Singapore, Malaysia) model

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Ñ 3 Ñ CD-TEXT TEST DISC This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display. To check, perform the following procedure. Checking Method: 1. Turn ON the power, set the disc on a tray, and chuck the disc. 2. Press the á button and play back the disc. 3. The following will be displayed on the fluorescent indicator tube. Display : 1KHZ/0 DB 4. Rotate ­ AMS ± knob to switch the track. The text data of each track will be displayed. For details of the displayed contents for each track, refer to ÒTable 1 : CD-TEXT TEST DISC Recorded Contents and DisplayÓ. Restrictions in CD-TEXT Display In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. Table 1 : CD-TEXT TEST DISC Recorded Data Contents and Display (TRACKS No. 1 to 32:Normal Characters) TRACK No.Recorded contents Display 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1kHz/0dB/L&R 20Hz/0dB/L&R 40Hz/0dB/L&R 100Hz/0dB/L&R 200Hz/0dB/L&R 500Hz/0dB/L&R 1kHz/0dB/L&R 5kHz/0dB/L&R 7kHz/0dB/L&R 10kHz/0dB/L&R 16kHz/0dB/L&R 18kHz/0dB/L&R 20kHz/0dB/L&R 1kHz/0dB/L&R 1kHz/-1dB/L&R 1kHz/-3dB/L&R 1kHz/-6dB/L&R 1kHz/-10dB/L&R 1kHz/-20dB/L&R 1kHz/-60dB/L&R 1kHz/-80dB/L&R 1kHz/-90dB/L&R Infinity Zero w/o emphasis//L&R Infinity Zero with emphasis//L&R 400Hz+7kHz(4:1)/0dB/L&R 400Hz+7kHz(4:1)/-10dB/L&R 19kHz+20kHz(1:1)/0dB/L&R 19kHz+20kHz(1:1)/-10dB/L&R 100Hz/0dB/L* 1kHz/0dB/L* 10kHz/0dB/L* 20kHz/0dB/L* 1 K H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 2 0 H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 4 0 H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 1 0 0 H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 2 0 0 H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 5 0 0 H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 1 K H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 5 K H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 7 K H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 1 0 K H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 1 6 K H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 1 8 K H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 2 0 K H Z / 0 D Ð Ð Ð Ð B/L&R are not displayed 1 K H Z / 0 D B Ð Ð Ð Ð /L&R are not displayed 1 K H Z / - 1 D Ð Ð Ð Ð B/L&R are not displayed 1 K H Z / - 3 D Ð Ð Ð Ð B/L&R are not displayed 1 K H Z / - 6 D Ð Ð Ð Ð B/L&R are not displayed 1 K H Z / - 1 0 Ð Ð Ð Ð dB/L&R are not displayed 1 K H Z / - 2 0 Ð Ð Ð Ð dB/L&R are not displayed 1 K H Z / - 6 0 Ð Ð Ð Ð dB/L&R are not displayed 1 K H Z / - 8 0 Ð Ð Ð Ð dB/L&R are not displayed 1 K H Z / - 9 0 Ð Ð Ð Ð dB/L&R are not displayed I N F I N I T Y Ð Ð Ð Ð Zero w/o emphasis//L&R are not displayed I N F I N I T Y Ð Ð Ð Ð Zero with emphasis//L&R are not displayed 4 0 0 H Z+ 7 K Ð Ð Ð Ð Hz(4:1)/0dB/L&R are not displayed 4 0 0 HZ + 7 K Ð Ð Ð Ð Hz(4:1)/-10dB/L&R are not displayed 1 9 K H Z+ 2 0 Ð Ð Ð Ð Hz(1:1)/0dB/L&R are not displayed 1 9 K H Z+ 2 0 Ð Ð Ð Ð Hz(1:1)/-10dB/L&R are not displayed 1 0 0 H Z / 0 D Ð Ð Ð Ð B/L are not displayed 1 K H Z / 0 D B Ð Ð Ð Ð /L are not displayed 1 0 K H Z / 0 D Ð Ð Ð Ð B/L are not displayed 2 0 K H Z / 0 D Ð Ð Ð Ð B/L are not displayed * Other channel is infinity zero.