Sony CDP-CX300/CX350/CX691 COMPACT DISC PLAYER Service Manual

– 1 – MICROFILM CDP-CX300/CX350/CX691 US Model CDP-CX300/CX350/CX691 Canadian Model CDP-CX300/CX350 AEP Model UK Model Australian Model CDP-CX350 SPECIFICATIONS SERVICE MANUAL COMPACT DISC PLAYER Model Name Using Similar Mechanism NEW CD Mechanism Type CDM54-KIBD35E Base Unit Type KSM-213BFN/M-NP Optical Pick-up Type KSS-213BFN Photo; CDP-CX350 Downloaded from www.Manualslib.com manuals search engine

– 2 – CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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 270˚C 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. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PROD- UCT MARKING is located on the rear exterior. The following caution label is located inside of the unit. PARTS No. MODEL MODEL IDENTIFICATION — BACK PANEL — 4-215-964-0π 4-215-964-1π 4-215-964-2π 4-215-964-3π 4-215-964-4π 4-215-964-5π 4-215-964-7π CX300 : US CX300 : CND CX350 : US CX350 : CND CX350 : AEP, UK CX350 : AUS CX691 : US SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ!! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth Ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers). Leak- age current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. PART NO. 0.15μF To Exposed Metal Parts on Set 1.5kΩ AC voltmeter (0.75V) Earth Ground • Abbreviation CND : Canadian model AUS : Australian model Downloaded from www.Manualslib.com manuals search engine

– 3 – TABLE OF CONTENTS 1. SERVICING NOTE .......................................................... 3 2. GENERAL .......................................................................... 6 3. DISASSEMBLY 3-1. Front Panel Assembly ........................................................... 7 3-2. Table (300) Assembly ........................................................... 7 3-3. Base (Door, Gear) Assembly ................................................ 8 3-4. Pop-up Assembly .................................................................. 8 3-5. Mechanism Deck .................................................................. 9 3-6. Base Unit ............................................................................. 9 4. SERVICE MODE ............................................................. 10 5. TEST MODE ..................................................................... 14 5-1. ADJ Mode ......................................................................... 14 5-2. Key and Display Check Mode ............................................ 14 6. ADJUSTMENTS 6-1. Mechanical Adjustments ..................................................... 15 6-2. Electrical Adjustment .......................................................... 17 7. DIAGRAMS 7-1. Circuit Boards Location ...................................................... 20 7-2. Block Diagrams • BD Section ........................................................................ 21 • Main Section ..................................................................... 23 7-3. Schematic Diagram – BD Section – ................................... 27 7-4. Printed Wiring Board – BD Section – ................................. 29 7-5. Printed Wiring Board – Main Section – .............................. 31 7-6. Schematic Diagram – Main (1/2) Section – ........................ 33 7-7. Schematic Diagram – Main (2/2) Section – ........................ 35 7-8. Printed Wiring Board – T. Sens Section – .......................... 37 7-9. Printed Wiring Board – T. Sens (In) Section – ................... 37 7-10. Printed Wiring Board – D. Sens (Out) Section – .............. 38 7-11. Schematic Diagram – Sensor Section – ............................ 38 7-12. Schematic Diagram – Display Section – ........................... 39 7-13. Printed Wiring Board – Display Section – ........................ 41 7-14. Schematic Diagram – Jog Section – .................................. 43 7-15. Printed Wiring Board – Jog Section – ............................... 44 7-16. Schematic Diagram – Power Section – ............................. 47 7-17. Printed Wiring Board – Power Section – .......................... 48 7-18. Schematic Diagram – Jack Section – ................................ 49 7-19. Printed Wiring Board – Jack Section – ............................. 50 7-20. Schematic Diagram – Sensor/Motor Section – ................. 53 7-21. Printed Wiring Board – Sensor/Motor Section – .............. 54 7-22. IC Block Diagrams ............................................................ 55 7-23. IC Pin Functions ................................................................ 58 8. EXPLODED VIEWS 8-1. Case Section ........................................................................ 60 8-2. Chassis Section ................................................................... 61 8-3. Front Panel Section ............................................................. 62 8-4. Mechanism Section 1 (CDM54-K1BD35E) ....................... 63 8-5. Mechanism Section 2 (CDM54-K1BD35E) ....................... 64 8-6. Mechanism Section 3 (CDM54-K1BD35E) ....................... 65 8-7. Opeical Pick-up Section (KSM-213BFN/M-NP) ............... 66 9. ELECTRICAL PARTS LIST ........................................ 67 SECTION 1 SERVICING NOTE NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repain parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, ob- serve from more than 30 cm away from the objective lens. The emission check enables continuous checking of the S curve. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output three times. Downloaded from www.Manualslib.com manuals search engine

– 4 – CD-TEXT TEST DISC This unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:J-2501-126-A) is used for checking the display. To check, perform the following procedure. Checking Method: 1. Turn ON the power, set the disc on the disc table with the side labeled as “test disc” as the right side, close the front cover, and chuck the disc. 2. The following will be displayed on the fluorescent indicator tube. (The display switches each time the TIME/TEXT button is pressed.) Display : CD TEXT TEST DISC (Album Title) 3. Press the · button and play back the disc. 4. The following will be displayed on the fluorescent indicator tube. (If nothing is displayed, press the TIME/TEXT button.) Display : 1kHz/0 dB/ L&R 5. Rotate ≠ and ± 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 “Table 1 : CD-TEXT TEST DISC Text Data Contents” and “Table 2 : CD- TEXT TEST DISC Recorded Contents and Display”. 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. For details, refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”. Table 1 : CD-TEXT TEST DISC Text Data Contents (TRACKS No. 1 to 41:Normal Characters) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 TRACK No. Displayed Contents 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 TRACK No. Displayed Contents 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* 100Hz/0dB/R* 1kHz/0dB/R* 10kHz/0dB/R* 20kHz/0dB/R* 100Hz Squer Wave//L&R 1kHz Squer Wave//L&R 1kHz w/emphasis/-0.37dB/L&R 5kHz w/emphasis/-4.53dB/L&R 16kHz w/emphasis/-9.04dB/L&R NOTE : The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed. Downloaded from www.Manualslib.com manuals search engine

– 5 – TRACK No. Recorded contents Display N All the same N All the same N All the same N All the same N All the same N All the same N All the same XYZ[ \ ] ^ _ (58···· N All the same N All the same N All the same x yz{I} ~ (78···· i¢£¤¥ § (A0···· is not displayed ≥ (A8···· C ª ¬ PR – are not displayed μ • (B0···· • ± 2 3 ¶ are not displayed † ¿ (B8···· 1 º are not displayed N All the same N All the same N All the same Φ ÙÚÛÜY ß (D8···· N All the same N All the same oñòóôõö ÷ (F0···· N All the same N All the same N All the same to N All the same ′ * 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 to 99 ! ” # $%& ´ (21h to 27h)1kHz 0dB L&R ( ) + , – . / (28h to 2Fh) 0 1 2 3 4 5 6 7 (30h to 37h) 8 9 : ; < = > ? (38h to 3Fh) @ABCDEFG (40h to 47h) H I J K LMNO (48h to 4Fh) PQRSTUVW (50h to 57h) XYZ [ ¥ ] ^ _ (58h to 5Fh) a b c d e f g (60h to 57h) h i j k l mn o (68h to 6Fh) p q r s t u v w (70h to 77h) xyz{I} (78h to 7Fh) i¢£¤¥ § (A0h to A7h) 8859-1 ≥ C ª ¬ PR – (A8h to AFh) • ± 2 3 μ ¶ • (B0h to B7h) † 1 º ¿ (B8h to BFh) ÀÁÂÃÄÅÆÇ (C0h to C7h) ÈÉÊË Ì Í Î Ï (C8h to CFh) DÑÒÓÔÕÖ (D0h to D7h) ØÙÚÛÜY ß (D8h to DFh) à á â ã ä åæç (E0h to E7h) è é ê ë ì í î ï (E8h to FFh) ∂ ñòóôõö ÷ (F0h to F7h) øùúûüy ÿ (F8h to FFh) No.66 No.67 to No.99 ~ ′ 1 4 1 2 3 4 ′ ˙ 1 4 1 2 3 4 Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be displayed. This is no a fault.) ´ ˙ Downloaded from www.Manualslib.com manuals search engine

– 6 – LOCATION OF PARTS AND CONTROLS 1 1/u (power) button 2 STANDBY indicator 3 Display window 4 CONTINUE button 5 SHUFFLE button 6 PROGRAM button 7 REPEAT button 8 TIME/TEXT button 9 Front cover 10 ≠AMS ±/PUSH ENTER knob and button 11 MENU/NO button 12 +100 button 13 YES button 14 DISC/CHARACTER/PUSH ENTER knob and button 15 EASY PLAY button and indicator 16 MEMO/SEARCH button 17 CHECK button 18 CLEAR button 19 MEGA CONTROL button and indicator 20 X-FADE button SECTION 2 GENERAL Front Panel 21 NO DELAY button 22 FADER button 23 p (stop)/DISC EJECT button 24 P (pause) button and indicator 25 · (play) button and indicator 26 § OPEN/CLOSE button 27 HIT LIST button and indicator 28 GROUP 4 button and indicator 29 GROUP 3 button and indicator 30 GROUP 2 button and indicator 31 GROUP 1 button and indicator 32 GROUP FILE button 33 GROUP 8 button and indicator 34 GROUP 7 button and indicator 35 GROUP 6 button and indicator 36 GROUP 5 button and indicator 37 IR Repeater window (CDP-CX350) 38 KEYBOARD jack 39 TIMER OFF/PLAY switch * AMS is abbreviation for Automatic Music Sensor. 3 45678 9 10 11 12 1 2 15 16 17 18 13 14 23 24 25 26 38 39 37 19 20 21 22 31 30 29 28 27 36 35 34 33 32 Photo: CDP-CX350 Downloaded from www.Manualslib.com manuals search engine

– 7 – SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. FRONT PANEL ASSEMBLY 3-2. TABLE (300) ASSEMBLY 1 Two screws (BVTP 3x8) 3 Two screw (BVTP 3x8) 6 Flat tayp wire(CN701) 2 Three screws (BVTP 3x8) 7 Front panel assembly 5 Remove the claw 4 Remove the claw LED board 0 Guide (door.T) 1 CD door assembly 3 Two screws (BVTP 3x8) 4 Screw (BVTP 3x8) 5 Bracket (F.W.) 7 Screw (BVTP 3x8) 9 Screw (BVTP 3x16) 6 LED board 8 Window !¡ Table (300)assembly 2 Connector (CN)504) !™ Two washer Downloaded from www.Manualslib.com manuals search engine

– 8 – 3-3. BASE (DOOR, GEAR) ASSEMBLY 3-4. POP-UP ASSEMBLY 1 Two screws (BVTP 3x8) 2 Cover(front) 4 Guide (Door.B) 6 Bracket (Guide.B) 3 Three screws (BVTP 3x8) 0 Two screws (BVTP 3x8) !¡ Three screws (BVTP 3x8) !™ Base (door.gear) assembly 5 Four screws (BVTP 3x8) 8 Cover(P.T.) 9 Connector (CN508) 7 Two screws (BVTP 3x8) 1 Step screw 3 Pop-up assembly 2 Screw (PTPWH3x6) Downloaded from www.Manualslib.com manuals search engine

– 9 – 3-5. BACK PANEL ASSEMBLY 3-6. CDM ASSEMBLY 0 Back panel 4 Connector (CN84) 1 Connector (CN991) 9 Guide (main) !£ Main board 2 Connector (CN903) 3 Connector (CN901) 7 Two screws (BVTP 3x8) !™ Two screws (BVTP 3x8) !¡ Two screws (BVTP 3x8) 8 Two screws (BVTP 3x8) 6 Two screws (BVTP 3x8) 5 Three screws (BVTP 3x8) 5 Screw (BVTP 3x8) 8 Power board 4 Screw 6 Two screws (BVTP 3x8) 2 Two screws (BVTP 3x8) 9 Three screws (BVTP 3x8) 1 Three screws (BVTP 3x8) 3 Three screws (BVTP 3x8) 7 Four screws (BVTP 3x8) 0 Bracket(top) !¡ CDM assembly Downloaded from www.Manualslib.com manuals search engine

– 10 – ALL ERASE This mode is used for clearing information such as the title memo. Do not execute if information such as the title memo is not to be erased. Procedure: While pressing the CLEAR button with the power OFF, press the 1/u button and turn on the power. The fluorescent display tube displays “ALL ERASE” and all memo- ries will be cleared. AGING MODE • Mode which repeatedly changes and plays back discs automati- cally in the unit. • It will repeat aging as long as no errors occur. • If an error occurs during aging, it will stop all servos, motors, etc. instantaneously, display the error number, and stop operations. However, the stopping conditions differ according to whether the unit is equipped with the “self-protection function during errors” described later. The function serves to maintain the state of the unit when errors occur. SECTION 4 SERVICE MODE Mode name ALL ERASE AGING MODE LOARDING AGING MODE TABLE AGING MODE DOOR POP UP AGING MODE TABLE LOTATION MODE TITLE MEMO SHIFT MODE MODEL NAME DISPLAY MICROPROCESSOR VERSION DISPLAY ALL LIT MODE MECHANISM ADJUSTMENT MODE SHIPMENT MODE TITLE MEMO RECORDING CHECK MODE Power supply state OFF ON ON ON ON ON ON ON ON ON ON ON ON Button operation CLEAR + 1 GROUP 1 + § OPEN/CLOSE + +100 GROUP 2 + § OPEN/CLOSE + +100 GROUP 3 + § OPEN/CLOSE + +100 GROUP 4 + § OPEN/CLOSE + +100 GROUP 5 + § OPEN/CLOSE + +100 GROUP 7 + § OPEN/CLOSE + +100 GROUP 1 + · + +100 GROUP 2 + · + +100 GROUP 3 + · + +100 GROUP 4 + · + +100 GROUP 5 + · + +100 GROUP 6 + · + +100 Remarks Note 1 Used in adjustment Note 1 Note 1 Note 1 Do not execute unless with a proper reason, otherwise the memory of the title memo recorded by the customer will be erased. The title memo recording check mode is not required for servicing. Do not execute. SPECIAL FUNCTION This unit is provided with several service modes. Details are shown in the following table. 1. Disc change 2. Load in 3. TOC read 4. Access of last track 5. 3 second playback 6. Access of first track 7. 3 second playback 8. Load out 9. FRONT COVER open 10. FRONT COVER close 1. No. 60 2. No. 240 3. No. 180 4. No. 300 5. No. 120 Sequence of Aging Mode $ $ $ $ $ $ $ $ $ Order of Disc Change (1 cycle takes 3 minutes) $ $ $ $ $ $ $ $ Downloaded from www.Manualslib.com manuals search engine

Sony CDP-CX300/CX350/CX691 COMPACT DISC PLAYER Service Manual

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