Sony-CDPXE900-cd-sm 电路图 维修手册.pdf

1 Model Name Using Similar MechanismNEW CD Mechanism TypeCDM36-14 Base Unit TypeBU-14 Optical Pick-up TypeKSS-213B/S-N SPECIFICATIONS MICROFILM COMPACT DISC PLAYER AEP Model CDP-XE900 UK Model Chinese Model CDP-XE900E Compact disc player LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Laser outputMax 44.6 W* * This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick- up block with 7 mm aperture. Frequency response2 Hz to 20 kHz 0.5 dB Signal-to-noise ratioMore than 113 dB Dynamic rangeMore the 99 dB Harmonic distortionLess than 0.0025% Channel separationMore than 105 dB General Power requirementsExcept Chinese model : 220 V 230 V AC, 50/60 Hz Chinese model : 220V AC50/60Hz Power consumption14W Dimensions (approx.)430 1107 295 mm (w/h/d)(17 4 1/4 11 5/8 in.) incl. projecting parts Mass (approx.)5.2 kg (8 lbs 13 oz) Supplied accessories Audio cord (2 phono plugs2 phono plugs) (1) Remote commander (RM-D820) (1) Sony SUM-3 (NS) batteries (2) Design and specifications are subject to change without notice. PHOTO : CDP-XE900 CDP-XE900/XE900E SERVICE MANUAL Outputs JackMaximumLoad typeoutputimpedance level LINE OUT Phono2 VOver 50 kilohms jacks(at 50 kilohms) DIGITAL Optical18 dBmWave length : 660 nm OUT output (OPTICAL) connector PHONES Stereo10 mW32 ohms (CDP-XE900) phone jack RadioFans.CN 收音机爱 好者资料库 2 This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. TABLE OF CONTENTS 1. SERVICING NOTE. 3 2. GENERAL .4 3. DISASSEMBLY 3-1.Front Panel Assembly. 5 4. TEST MODE.6 5. ELECTRICAL BLOCK CHECKING.8 6. DIAGRAMS 6-1.Circuit Boards Location . 10 6-2.Schematic Diagram Main Section . 11 6-3.Printed Wiring Board Main Section . 15 6-4.Schematic Diagram BD Section . 20 6-5.Printed Wiring Board BD Section . 23 6-2.IC Pin Function IC801 System Control, Fluorescent Indicator Tube Drive (CXP82316-069Q) . 26 7. EXPLODED VIEWS 7-1.Case Section . 27 7-2.Chassis Section. 28 7-3.CD Mechanism Section (CDM36-14). 29 7-4.Base Unit Section (BU-14). 30 8. ELECTRICAL PARTS LIST. 31 The laser component in this product is capable of emitting radiation exceeding the limit for Class 1. MODEL IDENTIFICATION BACK PANEL 4-983-973-1: XE900 (AEP, German) model 4-983-973-2: XE900E (UK) model 4-983-973-3: XE900E (Chinese) model (XE900E) 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 270C 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. ADVARSEL : USYNLIG LASERSTRLING VED BNING NR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDG UDSAETTELSE FOR STRLING. CAUTION : INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT- TIINA NKYMTTMLLE LASERSTEILYLLE. L KATSO STEESEEN. VARNING : OSYNLIG LASERSTRLING NR DENNA DEL R PP- NAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. VORSICHT : UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEFFNET UND SICHEREITSVERRIEGELUNG BERBRCKT. NICHT DEM STRAHL AUSSETZEN. ADVARSEL : USYNLIG LASERSTRLING NR DEKSEL PNES OG SIKKERHEDSLS BRYTES. UNNG EKSPONERING FOR STRLEN. (XE900) This caution label is located inside the unit. This caution label is located inside the unit. RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 SERVICING NOTE HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF Insert a screwdriver into the aperture of the unit bottom, and move it in the direction of arrow. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair 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, observe from more than 30 cm away from the objective lens. 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 two times. RadioFans.CN 收音机爱 好者资料库 4 SECTION 2 GENERAL LOCATION OF PARTS AND CONTROLS Front Panel 12 345678 90! ! 1 POWER switch 2 PLAY MODE button 3 REPEAT button 4 FADER button 5 TIME button 6 Disc tray 7 Remote sensor 8 0/) buttons 9 Display window 0 CHECK button ! CLEAR button ! ENTER button ! AMS* knob ! p (stop) button ! P (pause) button ! (play) button ! OPEN/CLOSE button ! MUSIC SCAN button ! AUTO SPACE button PEAK SEARCH button EDIT/TIME FADE button PHONES LEVEL control (CDP-XE900) PHONES jack (CDP-XE900) * AMS is the abbreviation for Automatic Music Sensor. ! 5 SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. FRONT PANEL ASSEMBLY Claws A part 1Push the part A in the direction of arrow to remove the loading panel upward. 2Connector (CN351) 3Connector (CN302) (Flat type wire) Claws 5Screw (BVTP3x8) (XE900 only) 4Five Screws (BVTP3x8) 6Remove the front panel assembly with care to claws. 6 When the p button is pressed, the following will be displayed. (partial lighting 2) When the OPEN/CLOSE button is pressed, all will light up again. Key check All buttons have corresponding button numbers. When a button is pressed, the counter will count up and display the buttons num- ber. However, the counter will only count to “17”. It will not count for buttons already pressed once, but will display the buttons number. SECTION 4 TEST MODE 4-1. AF MODE The following checks can be performed in the AF mode, which is set by connecting the TP2 (AFADJ) terminal on MAIN board to the Ground and turning on the power. FL tube check After all segments light up, when the button is pressed, the following will be displayed. (Partial lighting 1) (Partial lighting 2) (Partial lighting 1)8 8 8 8 Remote commander check When the button of the remote commander is pressed, the “” lights up. All go off when the other buttons are pressed. Audio check Initial setting of digital filter and release of mute. When the TP2 (AFADJ) terminal on MAIN board is set to HIGH (VDD), emphasis turns on. When set to LOW (Ground), it turns off. TIME FADER REPEAT PLAY MODE EDIT/ TIME FADE PEAK SEARCH AUTO SPACE MUSIC SCAN P 00 01 02 03 ENTER CLEAR CHECK ) 0 OPEN/ CLOSE PLAY STOP p 32 33 34 35 36 04 05 06 07 25 Button No. Displayed Button No. Displayed 88888888 Display of counting Display of button number 24 6810 1214 161820 ButtonButton All lit Partial lighting 1 Partial lighting 2 7 4-2. ADJ MODE The following operations are performed in the ADJ mode, which is set by connecting the TP1 (ADJ) terminal to the Ground and turning on the power. During playback, there is no problem even if the GFS is continu- ously LOW. High speed search is prohibited during access. During playback, the gain of focus servo and spindle servo does not decrease. Servo related manual operations and measurement can be per- formed. (For details of operations, refer to Table of Key Operrations in ADJ Mode.) 4-3. CLV-S MODE The spindle servo for playback sets into the CLV-S mode when the TP1 (ADJ) terminal is connected to Ground after turning on the power. TABLE OF BUTTON OPERATIONS IN ADJ MODE The jitter value display mode can be set after the all-music remaining number mode using the TIME button. The functions of the number buttons are shown in the following table. FUNCTIONS OF NUMBER BUTTONS (With the attached remote commander) MAIN BOARD Component Side 1 2 3 4 5 6 7 8 10 Focus bias 8-step up Middle of focus bias up/down turning point Tracking servo, sled servo off Auto gain initialization Focus servo off Focus bias 8-step down Immediate readjustment of focus bias Tracking servo, sled servo on Auto focus bias start point FunctionButton CN301 CN302 TP1 (ADJ) R362 TP2 (AFADJ) EB602 8 SECTION 5 ELECTRICAL BLOCK CHECKING 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 Procedure : 1. Connect oscilloscope to test point TP (FE) on BD board. 2. Connect between test point TP (FEI) and TP (VC) by lead wire. 3. Turn Power switch on. 4. Put disc (YEDS-18) in and turn Power switch on again and actu- ate the focus search. (actuate the focus search when disc table is moving in and out.) 5. Check the oscilloscope waveform (S-curve) is symmetrical be- tween A and B. And confirm peak to peak level within 31 Vp-p. S-curve waveform 6. After check, remove the lead wire connected in step 2. 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 bright- ness to obtain best waveform. RF Level Check Procedure : 1. Connect oscilloscope to test point TP (RF) on BD board. 2. Turn Power switch on. 3. Put disc (YEDS-18) in to play the number five track. 4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. Note: A clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the waveform. RF signal waveform E-F Balance (1 Track Jump) Check (Without remote commander) Procedure : 1. Connect oscilloscpe to test point TP (TE) on BD board. 2. Turn Power switch on. 3. Put disc (YEDS-18) in to play the number five track. 4. Press the “P (Pause)” button. (Becomes the 1 track jump mode) 5. Check the level B of the oscilliscopes waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than 22% 1 track jump waveform Procedure : 1. Connect oscilloscpe to test point TP (TE) on BD board. 2. Connect the test point TP1 (ADJ) on MAIN board to the ground with a lead wire. 3. Turn the Power switch on to set the ADJ mode. 4. Put disc (YEDS-18) in to play the number five track. 5. Press the “3” button. (The tracking servo and the sledding servo are turned OFF.) oscilloscope BD board TP (FE) TP (VC) BD board TP (RF) TP (VC) oscilloscope level : 1.3 Vp-p VOLT/DIV : 200mV TIME/DIV : 500ns +0.25 0.20 oscilloscope BD board TP (TE) TP (VC) Center of the waveform 0V B level : 1.3 0.6 Vp-p symmetry A (DC voltage) E-F Balance (Traverse) Check (With remote commander) oscilloscope BD board TP (TE) TP (VC) symmetry within 3 1 Vp-p A B 9 Center of the waveform B level : 1.3 0.6 Vp-p 0V 7. Press the “8” button. (The tracking servo and sledding servo are turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 6. Traverse waveform 8. Disconnect the lead wire of TP1 (ADJ) connected in step 1. 2. Turn Power switch on. 3. Put the disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz. Adjustment Location : BD BOARD Side A IC102 MAIN BOARD Component Side 6. Check the level B of the oscilliscopes 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 A (DC voltage) Tracking servo Sledding servo OFF Tracking servo Sledding servo ON RF PLL Free-run Frequency Check Procedure : 1. Connect frequency counter to test point TP (XPLCK) with lead wire. IC101 IC103 frequency counter BD board TP (XPLCK) TP (XPLCK) TP (FE) TP (RF) TP (TE) TP (FEI) TP (VC) CN302CN301 TP1 (ADJ) R362 TP2 (AFADJ) J301 IC305 EB602 0V C (DC voltage) 10 SECTION 6 DIAGRAMS 6-1. CIRCUIT BOARDS LOCATION HP board (XE900) POWER board TRANS board BD board SLED board KEY board LOADING board MAIN board SPINDLE board DISP board 26 6-6. IC PIN FUNCTION IC801 SYSTEM CONTROL, FLUORESCENT INDICATOR TUBE DRIVE (CXP82316-069Q) Loading motor control signal output. Key input. (S801 to S810, S820 to S826, S828) ADJ, AFADJ test pin. Loading IN/OUT switch input. Reset signal input. Clock input. (4 MHz) Clock output. (4 MHz) Ground Not used. (Open) Fluorescent Indicator Tube segment output. Fluorescent Indicator Tube grid output. 30V pin for Fluorescent Indicator tube. +5V pin. Connected to Ground. Connected to +5V. Read out timing signal input for subcode Q data. Connected to Ground. Connected to Ground. Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 to 27 28 29 30 31 32 33 34 to 41 42 to 62 63 to 70 71 72 73 74 75 76 77 78 79 80 Pin Name TIMER RM (BUSIN) +5V OPEN OPEN (BUS OUT) PGML CLK SENSE DATA SQCK SUBQ OPEN AMUTE LDON XLT RVLED RV+ RV LDOUT LDIN KEY0 to KEY5 ADJ/AFADJ IN/OUTSW RST EXTAL XTAL VSS OPEN S1 to S21 1G to 8G VFDP (30V) VDD (+5V) SEL1 IN PORT IN PORT IN PORT SCOR SEL2 SEL3 I/O I I O O O I O O I O O O O I I O O I I I I O O O I Function Timer switch input. (Not used) Connected to +5V. Audio bus (Remote control) input. Connected to +5V. Not used. (Open) Audio bus output. (Not used) Latch signal output to digital filter (IC303). Serial clock output. SENSE signal input. Serial data output. Read out clock output for subcode Q data. Subc