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CDP-CA70ES SERVICE MANUAL US Model Canadian Model Manufactured under license from Dolby Laboratories Model Name Using Similar Mechanism Licensing Corporation. CD Mechanism Type CDM27I “DOLBY” and the double-D symbol a are trademarks Base Unit Name BU-5BD25 of Dolby Laboratories Licensing Corporation.
TABLE OF CONTENTS SERVICE NOTE ··························································· 4 GENERAL ······································································ 7 DISASSEMBLY 3-1. Front Panel ········································································· 9 3-2. Disc Table Assembly and Disc Table and Press Pulley ······ 9 3-3. Main Board ······································································· 10 3-4. CDM Assembly ································································ 10 3-5. Optical Pick-up Block Assembly ····································· 11 3-6.
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CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.
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SECTION 1 SERVICING NOTE HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF Insert a tapering driver into the aperture of the unit bottom, and turn in the direction of arrow (to OUT direction). * To close the disc tray, turn driver in the reverse direction (to IN direction).
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SHIPMENT MODE Performed when returning the unit to the customer. Custom File Erases all custom files and initializes settings. Procedure: Remove the discs from all trays. While pressing the DISC 2 button and 3 button. press the 1/u button to turn ON the power. “NO DISC”...
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Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be displayed. This is not a fault.) TRACK Recorded contents Display 0 dB L & R are not displayed ! ” # $ % & ’ (21h to 27h)1kHz 0dB L&R N All the same + , –...
SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. FRONT PANEL 1 Remove top cover. 2 Eject the disc table referring to SERVICING NOTE (Page 4). !£ Three screws 9 Connector M 3 × 12 (CN403) !™...
3-5. OPTICAL PICK-UP BLOCK ASSEMBLY 2 Screw (M 3 × 12) 3 Two screws (PTPWH 2.6 × 6) 4 Two screws (PTPWH 2.6 × 6) 8 Optical pick-up block assembly 6 Compression spring (BU) 1 Flat type wire (23 core) (BD board, to CN101) 5 Holder (BU) 7 Compression spring (BU)
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SECTION 4 TEST MODE ADJ MODE Buttons and Corresponding Button Numbers Button Button Number or Display 1. Chuck the CD first, and then turn OFF the power. CONTINUE 2. Short-circuit the test point (TP2:ADJ) of the main board and ground with a lead wire. SHUFFLE 3.
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AGING MODE This unit is equipped with an aging mode to check operations of the mechanism deck. • When faults occur: Aging stops, and the state when aging stopped is displayed on the fluorescent display tube. • When no fault has occurred: Aging is continued repeatedly.
SECTION 5 ELECTRICAL BLOCK CHECKING Note: Note: 1. CD Block is basically designed to operate without adjustment. A clear RF signal waveform means that the shape “◊” can be clearly Therefore, check each item in order given. distinguished at the center of the waveform. 2.
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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 A (DC voltage) + 0.7 level : 1.3 mVp-p...
SECTION 6 DIAGRAMS 6-1. CIRCUIT BOARDS LOCATION BD board TABLE MOTOR board SENSOR board DISPLAY board MAIN board FUNCTION board 10 KEY board LOADING MOTOR board HP board — 17 —...
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• Waveforms THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. IC101&¡ (XTAI) IC501#™ (XTAL) (In addition to this, the necessary note is printed in each block.) 2.7Vp-p 4.8Vp-p For schematic diagrams. Note: 16.9MHz 10 MHz • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
CDP-CA70ES 6-2. BLOCK DIAGRAM DIGITAL SERVO/ IC405 OPTICAL PICK-UP IC101 BLOCK (KSS-213 B) RF AC D OUT D IN DIGITAL • SIGNAL PATH DSP/ CURRENT PULSE PHOTO DETECTOR RF AMP D/A CONV. D/A CONV. : CD IC103 IC301 IC302 L.P.F...
CDP-CA70ES 6-3. SCHEMATIC DIAGRAM BD SECTION • See page 18 for Waveforms. • See page 38 for IC Block Diagrams. • See page 40 for IC Pin Functions. (IC101) B/S-N (FE2) (FE1) MAIN BOARD CN401 (Page 27) The components identified by Les composants identifiés par...
6-13. IC PIN FUNCTIONS • IC101 DIGITAL SIGNAL PROCESSOR (CXD2585Q) (BD BOARD) Pin No. Pin Name Function DVDD — Digital power supply XRST System reset “L” : reset MUTE Muting input “H” : mute DATA Serial data input, supplied from CPU XLAT Latch input, supplied from CPU CLOK...
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Pin No. Pin Name Function Tracking error signal input Center servo analog input RFDC RF signal input ADIO Test pin (Not used) AVSS0 — Analog ground IGEN Stabilized current input for operational amplifiers AVDD0 — Analog power supply ASYO EFM full swing output ASYI Asymmetry comparate voltage input RFAC...
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• IC501 SYSTEM CONTROL (CXP84648-052Q) (MAIN BOARD) Pin No. Pin Name Function SRAM address 5 SRAM address 4 SRAM address 3 SRAM address 2 — Not used SRAM data 0 SRAM data 1 SRAM data 2 SRAM data 3 SRAM data 4 SRAM data 5 SRAM data 6 SRAM data 7...
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Pin No. Pin Name Function KEY3 Key input 3 CD123 Command mode switch KEY1 Key input 1 KEY0 Key input 0 ADJ input from keys and CDs T_SENS Table sensor Display latch Command clock LDON Laser diode ON DATA Command data SQCLK Sub-Q clock SUBQ...
SECTION 8 10 KEY ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • RESISTORS When indicating parts by reference number, parts list may be different from the parts All resistors are in ohms. please include the board name. specified in the diagrams or the components METAL: metal-film resistor The components identified by mark ! or...
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DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R106 1-216-061-00 METAL CHIP 3.3K 1/10W < INDICATOR TUBE > R107 1-216-061-00 METAL CHIP 3.3K 1/10W R108 1-216-073-00 METAL CHIP 1/10W FL801 1-517-664-11 INDICATOR TUBE, FLUORESCENT R109 1-216-121-91 RES,CHIP 1/10W R110...
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FUNCTION LOADING MOTOR MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-672-376-11 FUNCTION BOARD A-4724-655-A MAIN BOARD, COMPLETE ************** ******************** 7-685-871-01 SCREW +BVTT 3 × 6 (S) < CONNECTOR > CN802 1-750-186-11 CONNECTOR, BOARD TO BOARD 6P <...
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