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CDP-CX57
SERVICE MANUAL US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Model Name Using Similar Mechanism CDP-CX50/CX571
CD Mechanism Type CDM-46C1
Base Unit Type KSM-213BFN/M-NP
Optical Pick-up Type KSS-213B/S-N
SPECIFICATIONS
Compact disc player General
Power requirements
Laser Semiconductor laser (λ = 780 nm)
Where purchased Power requirements
Emission duration: continuous
US/Canada 120 V AC, 60 Hz
Laser output Max 44.6 μW*
Australia 240 V AC, 50/60 Hz
* This output is t
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SECTION 1 SERVICING NOTES TABLE OF CONTENTS MODEL IDENTIFICATION — BACK PANEL — 1. SERVICING NOTES ............................................... 2 2. GENERAL ................................................................... 6 3. DISASSEMBLY ......................................................... 7 4. TEST MODE .............................................................. 11 PART No. 5. MECHANICAL ADJUSTMENTS ....................... 14 PART No. MODEL 6. ELECTRICAL ADJUSTMENTS .....
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SAFETY CHECK-OUT NOTES ON HANDLING THE OPTICAL PICK-UP After correcting the original service problem, perform the follow- BLOCK OR BASE UNIT ing safety check before releasing the set to the customer: The laser diode in the optical pick-up block may suffer electro- Check the antenna terminals, metal trim, “metallized” knobs, static break-down because of the potential difference generated screws, and all other exposed metal parts for AC leakage. by the charged electrostatic load, etc. on
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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 the disc table with the side labeled as “test disc” as the right side, close the front cover, and chuck the disc. 2. Press the á button and play back the disc. 3. The following will
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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 no a fault.) TRACK Recorded Contents Display No. 42 ! ” # $ % & ´ (21h to 27h)1kHz 0dB L&R N All the same 43 ( ) + , – . / (28h to 2Fh) N All the same * 44 0 123456 7 (30h to 37Fh) N All the same 45 8 9 : ; < = > ? (38h to 3Fh) N All the same 46 @A B C D E F G (40h to 47Fh) N All the same 47 H I J K L M N O (48h to 4Fh) N All the same 48 P Q R S T U V W (50h to 57Fh) PQ R
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SECTION 2 GENERAL LOCATION OF PARTS AND CONTROLS Front Panel 1 2 3 456 7 8 9 0 !Á STANDBY !ª DISC/CHARACTER TIME/TEXT PUSH 1/u OPEN INPUT MEMO SEARCH !£ PUSH ENTERg @Á GROUP PLAY MODE REPEAT GROUP FILE 1 2 3 4 5 FADER CHECK CLEAR X-FADE NO DELAY @ª PULS ONE Pp ± MEGA !¢ CONTROL @£ @¼ !» !¥ !¦ !¤ !° 1 I/u (power switch) button !£ CHECK button 2 Front cover !¢ CLEAR button 3 PLAY MODE button !° ± button 4 REPEAT button !¤ button 5 GROUP FILE button !¦ p button 6 Display window !¥ P button 7 GRO
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SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 1 two screws (M3 × 8) CASE, FRONT PANEL 1 two screws (M3 × 8) 2 case 4 screw (BVTT3 × 6) 3 two screws (BVTT3 × 6) 7 claw 1 two screws (M3 × 8) 8 front panel 5 wire (flat type) (19 core) (CN503) 7 claw 6 three screws (BVTT3 × 6) TABLE (50) 3 bracket (ILLUMINATION) 4 screw 1 screw (PTPWH2.6 × 8) (BVTT3 × 6) 2 connector 5 table (50) (NO 806) – 7 –
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CD MECHANISM DECK SECTION 2 reinforcement 6 connector 3 two screws 5 two screws (CN53) (BVTP3 × 8) (BVTT3 × 10) 4 ring (B) 8 base (LOADING) 9 screw (P3 × 14) 0 connector (CN51) 7 wire (flat type) (16 core) (CN102) 0 connector (CN52) 7 wire (flat type) (9 core) 9 screw (CN103) (BVTT3 × 8) 5 screw (BVTT3 × 6) !Á connector (CN61) 6 connector (CN54) 1 screw (BVTT3 × 6) !ª base (CDM) AUDIO BOARD, MAIN BOARD 1 screw (BVTP3 × 8) 3 connector (CN 801) 1 two screws 5 two screws (BVTT3 × 6) 4 MAIN bo
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BASE UNIT 1 two screws 3 screw (BTP2.6 × 8) (BTP2.6 × 10) 2 bracket 4 reinforcement (small) 5 two tention springs 7 base unit 6 four screws (PTPWH2.6 × 8) BD BOARD, SLED MOTOR (M102) 6 gear (A) (S) 8 gear cover 7 three claws 5 claw 0 two screws (2 × 3) 9 gear (B) (RP) 1 wire (flat type) (16 core) !Á sled motor (CN101) (M102) 4 BD board 2 screw (B2 × 5) 3 Removal four solders. – 9 –
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OPTICAL PICK-UP (KSS-213B/S-N) 3 Remove the optical pick-up to direction of the arrow A. A 2 sled shaft 1 claw – 10 –
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SECTION 4 TEST MODE ADJ MODE FLUORESCENT INDICATOR TUBE, LED ALL LIT, AND KEY CHECK MODE 1. Press the I/u button to turn ON the power, and open the front cover. 1. Short-circuit the test point (TP ADJ) and test point (TP AFADJ) 2. Place the CD on the slit, close the front cover, and chuck the of the MAIN board with a lead wire. the CD. 2. Insert the power plug into the outlet. The whole fluorescent 3. Press the I/u button to turn OFF the power. indicator tube lights up. 4 Disconnect the power su
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Partially lit 1 AGING MODE 1 DISCS CD1 • Mode which repeatedly changes and plays back discs automati- G cally in the unit. • It will repeat aging as long as no errors occur. A B C D E F • If an error occurs during aging, it will stop all servos, motors, etc. instantaneously, display the error number, and stop opera- Partially lit 2 tions. However, the stopping conditions differ according to 1 DISCS whether the unit is equipped with the “self-protection function CD1 during errors” described late
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Error Display *3 Aging cycle count function: 1 DISCS Functions which displays the number of agings carried out on CD1 1 the Fluorescent indicator tube in numbers. One aging cycle DISC Aging carried consists of six discs. (Hexadecimal) 40 1Err*01 1 DISCS Disc number Error code CD1 1 SEC DISC TRACK MIN Without remote commander for aging mode: 51 1 0.02 1. Turn ON the power of the unit. Open the front cover. 2. Press the [PLAYÊMODE], á , and buttons in order. Disc number Track number 3. When
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SECTION 5 MECHANICAL ADJUSTMENTS To adjust the mechanism section, enter the mechanism section adjustment mode. For how to enter the mechanism section adjustment mode, refer to each adjustment section. DISC SENSOR ALIGMENT 1. Make sure that there is no disc in the unit. 2. Connect an oscilloscope to TP501 of the MAIN board. oscilloscope GND D.SENS (CH1) HHOUT HHOUT (CH2) D.SENS GND MAIN board TP501 3. While pressing the [CLEAR] and [PLUSÊONE] buttons at the same time and turn ON the power. CHECK
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8. Move the holder (sensor) center so that the flat portion center at the top of the D.SENS (CH1) input waveform and the ‘’H” center of HHOUT (CH2) coincide. Flat portion center of D. SENS (CH1) waveform HHOUT (CH2) waveform D.SENS (CH1) waveform Fixed screw Holder (sensor) 9. Tighten the fixed screw to fix the disc table, then press the [CLEAR] button. 10. The disc table rotates in the clockwise direction. Measure the waveform and make sure that the flat portion center at the top of the D.SENS
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MAGNET ASSY ALIGMENT 1. Check that there is no disc in the unit and then turn ON the power. Open the door, and set a disc in the PLUS ONE slit. 2. Turn OFF the power, close the door, and while pressing the [CLEAR] and [PLUSÊONE] buttons simultaneously, turn ON the power again. 3. Press the [CHECK] button, and set the loading mode. 4. Press the ± button and chuck the disc. 5. Adjust the magnet assembly and magnet holder so that A=B as shown in the figure. A B Magnet ASSY Screw (For adjustment
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SECTION 6 ELECTRICAL ADJUSTMENTS Note : 11. Turn OFF the power, and remove the lead wire connected at 1. CD Block is basically designed to operate without adjustment. There- step 7. fore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. Note : A clear RF signal waveform means that the shape “◊” can be 3. Use an oscilloscope with more than 10MΩ impedance. clearly distinguished at the center of the waveform. 4. Clean the object lens by an applicator wi
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When a general remote commander is not used: RF PLL Free-run Frequency Check Procedure : 1. Solder lead wires to TP (DVDD) and TP (TOFF) on the BD board severally. 1. Connect the frequency counter to TP (PCK) of the BD board. 2. Connect the oscilloscope to TP (TE) of the BD board. frequency counter 3. Press the I/u button and turn ON the power supply. BD board 4. Open the front cover, and press the [PLUSÊONE] button. 5. Set the disc (YEDS-18) into the “PLUS ONE” slit. TP (PCK) 6. Close the front
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Adjustment Location : [ BD BOARD ] — CONDUCTOR SIDE — CN102 IC102 TP CN103 (PCK) TP TP (TOFF) CN101 (DVDD) TP (RF) TP IC101 (FE) TP (VC) TP (TE) [ MAIN BOARD ] — CONDUCTOR SIDE — [ MAIN BOARD ] — COMPONENT SIDE — TP (GND) R504 R505 TP (ADJ) IC501 IC201 IC201 RV601 NO802 CN603 IC601 CN702 CN704 CN704 CN702 – 19 –
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SECTION 7 DIAGRAMS • Circuit Boards Location TABLE SENSOR board LED board DISC SENSOR (R) board DISC SENSOR (S) board MAIN board POWER SW board AUDIO board DISPLAY board BD board MOTOR board SW board – 20 –
