Yamaha-CDX-496-Service-Manual电路原理图.pdf

CDX-396/496 CDX-396/496 100707 DISPLAY DATA . 12 IC DATA . 13-16 BLOCK DIAGRAM . 17 PRINTED CIRCUIT BOARD . 18-21 IC BLOCK . 22 WAVEFORMS . 23 SCHEMATIC DIAGRAM . 24 PARTS LIST . 25-37 REMOTE CONTROL TRANSMITTER. 38 I CONTENTS TO SERVICE PERSONNEL . 1-2 FRONT PANELS . 3 REAR PANELS . 4 SPECIFICATIONS . 5 INTERNAL VIEW . 5 DISASSEMBLY PROCEDURES . 6, 7 STANDARD OPERATION CHART . 7, 8 TEST MODE . 8, 9 ERROR MESSAGE. 10, 11 IMPORTANT NOTICE This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that all service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumu- lated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. COMPACT DISC PLAYER CDX-396/496 RadioFans.CN 收音机爱 好者资料库 CDX-396/496 CDX-396/496 1 CAUTION: USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. THE COMPACT DISC PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PERSONNEL. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. 1. Critical Components Information. Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only). When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. I TO SERVICE PERSONNEL PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser. Therefore, be sure to carefully follow the instructions below when servicing . 1. Laser Diode Properties GMaterial: GaAlAs GWavelength: 780 nm GEmission Duration : Continuous GLaser Output: max. 44.6 W* * This output is the value measured at a distance of about 200 mm from the objective lens surface on the Optical Pick-up Block. 2. When checking the laser diode emission, keep your eyes more than 30 cm away from the objective lens. RadioFans.CN 收音机爱 好者资料库 CDX-396/496 CDX-396/496 2 R, G, B model G, B models CLASS 1 LASER PRODUCT English THIS PRINTING (SEE POSITION SHOWN IN THE ILLUSTRATION) INFORMS THE USER THAT THE APPARATUS CONTAINS A LASER COMPONENT. THIS LABEL (SEE POSITION SHOWN IN THE ILLUSTRATION) WARNS THAT ANY FURTHER PROCEDURE WILL BRING THE USER INTO EXPOSURE WITH THE LASER BEAM. CAUTION : USE OF CONTROLS, ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN, MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. Swedish DENNA MRKNING (SE FIGUR) UPPLYSER OM ATT DET I APPARATEN INGR EN LASERKOMPONENT AV TYP KLASS 1. VARNINGSMRKNING (SE FIGUR) FR STRLNING. INGREPP I APPARATEN BR ENDAST FRETAGAS AV FACKMAN MED KNNEDOM OM LASER. APPARATEN INNEHLLER EN LASERKOMPONENT SOM AVGER STRLNING VERSTIGANDE GRNSEN FR LASERKLASS 1. VARNING : OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD: BETRAKTA EJ STRLEN. Danish DETTE MRKAT ER ANBRAGT SOM VIST I ILLUSTRATIONEN FOR AT ADVARE BRUGEREN OM AT APPARATET INDEHOLDER EN LASERKOMPONENT. DETTE MRKAT OM LASEREN ER ANBRAGT P APPARATET SOM EN OPLYSNING OM AT APPARATET INDEHOLDER ET LASERKOMPONENT. ADVARSEL : INDGREB BOR KUN FORETAGES AF EN FAGMAND DA DER ER RISIKO FOR RADIOAKTIV STRLING. ADVARSEL : USYNLIG LASERSTRLING VED BNING. UNDG UDSAETTELSE FOR STRLING. Finnish VARO! : AVATTAESSA OLET ALTTIINA NKYMTTMLLE LASERSTEILYLLE. L KATSO STEESEEN. CDX-396/496 CDX-396/496 3 I FRONT PANELS CDX-396 CDX-496 CDX-396CDX-496 OUTPUT LEVEL+ - 39 CDX-396/496 CDX-396/496 I REAR PANELS 4 U, C models R model A model G, B models 240V240V 120V120V 220V220V 110V110V CDX-396/496 CDX-396/496 G DIMENSION Unit : mm (inch) I SPECIFICATIONS Output Level 1kHz, 0dB2.0 0.5Vrms Signal to Noise Ratio (EIAJ)105dB Dynamic Range95dB Harmonic Distortion+Noise (1kHz)0.003% Frequency Response 2Hz 20kHz0.5dB Power Requirements U, C models (CDX-396 ONLY)120V AC 60Hz B, G models230V AC 50Hz A model (CDX-396 ONLY)240V AC 50Hz R model110/120/220/240V AC 50/60Hz Power Consumption9W Dimensions (W x H x D)435 x 96 x 277mm (17-1/8 x 3-3/4 x 10-7/8) Weight3.7kg (7 lbs 11 oz) Finish CDX-396 CDX-396BLBlack color CDX-396TITitanium color CDX-496 CDX-496BLBlack color CDX-496TITitanium color AccessoriesPin plug cord Remote control transmitter (Dry-cell : x 2: Size “AA”, R06) 567 1MAIN P.C.B. (3) 2MAIN P.C.B. (6) 3MAIN P.C.B. (1) 4MAIN P.C.B. (4) 5CD MECHANISM UNIT 6MAIN P.C.B. (2) 7MAIN P.C.B. (5) (CDX-496 ONLY) I INTERNAL VIEW 5 *Specifications are subject to change without notice. U .U. S. A. model C .Canadian model A . Australian model B . British model G . European model R . General model 435(17-1/8) 16 (5/8) 96 (3-3/4) 5.5 (3/16) 261.5 (10-5/16) 6 (1/4) 277 (10-7/8) 80 (3-1/18) CDX-396/496 CDX-396/496 2 1 4 4 1 3 3 3 CD Mchanism Unit Front Panel Top Cover Lid I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.) 1. Removal of Top Cover a. Remove 4 screws ( 1 ) and 3 screws ( 2 ) in Fig. 1. b. Lift the Top Cover at the rear and move it rear-ward. 2. Removal of Front Panel a. Press the OPEN/CLOSE key and open the tray. Then remove the Lid attached to the front edge of the tray in Fig. 2. Press the OPEN/CLOSE key and close the tray, then unplug the power cord. b. Remove 2 connectors (CB202, CB301) in Fig. 2. c.Remove a connector (CB100) in Fig. 2. (CDX-496 only) d. Remove 5 ( 3 ) screws in Fig. 1. e.Remove 2 hooks and then pull the Front Panel for- ward. 3. Removal of CD Mechanism Unit a. Remove 3 connectors (CB1, CB2, CB3) in Fig. 2. b. Remove 4 screws ( 4 ) in Fig. 1. 6 Fig. 2 Fig. 3Fig. 4 Stopper 5 Stopper Pin 6 Sub Chassis (S) 7 7 Chucking Unit Stopper Hook Drive Gear Drive Unit 5. Removal of Pick-up Head a. Remove 2 screws ( 6 ) in Fig. 4. b. Remove 4 screws ( 7 ) and then remove the Drive Unit in Fig. 4. c. Remove the gear A in Fig. 5. d. Pull out the Sled Shaft in Fig. 5. e. Remove the Pick-up Head. Fig. 1 CB200 CB101PJ100 CB1 CB2 CB3 CB301 CB100 CB202 CB203 4. Removal of Tray Unit a. Remove 2 screws ( 5 ) and then remove the Chucking Unit in Fig. 3. b. Remove 1 hook and then remove the Stopper Pin in Fig. 3. c. Rotate the Drive Gear and then open the Tray Unit in Fig. 3. d. Detach the Stoppers on both sides and then pull out the Tray in Fig. 3. 3 CDX-396/496 CDX-396/496 7 I STANDARD OPERATION CHART Disc Table Pick-up HeadGear A Sled Shaft 19.4 0.2mm Stopper Check that the disc table height is as specified below. Fig. 5 A Press OPEN/CLOSE key. Forced feed return operation Clamp down operation Tray open Tracking offset auto ADJ Focus offset auto ADJ Load a disc. Press PLAY key or push the tray. Tray closed Disc mechanism unit clamped up. Feed inward switch reached. Laser ON Disc scan Focus gain rough ADJ Focus search operation Focus lock servo ON Spindle motor accelerated. Tracking servo ON Spindle servo ON Feed servo ON appears in the TIME indicator. TRV signal is output until detection of LIMIT switch. Stop after detection of LOADING switch. Proceeds to next step after detection of LOADING switch. if FLSW = L (IC300, 23 pin) Proceeds To Next Step. LDON = H (IC1, 5 pin) FLOCK = H L (IC300, 18 pin) TLOCK = H L (IC300, 19 pin) POWER ONIf a disc is not loaded, 0:00 appears in the time indicator. VCO lock OPEN CDX-396/496 CDX-396/496 I TEST MODE (1) Turning ON the POWER while pressing the keys PLAY/PAUSE and STOP will set to the TEST mode. (When the TEST mode is set, all indicators light for 1 second.) A 8 Tracking gain rough ADJ - * Data f etch cycle - After searching the beginning, PLAY starts. - PLAY - MUTE ON TRACK search MUTE ON Spindle motor stop : MUTE OFF = H L (Q201 Collector) 0:00 appears in the time indicator. Tracking balance ADJ (only tray OPEN/CLOSE) Focus balance ADJ Focus gain ADJ Tracking gain ADJ * TOC READ TRACK NO. 1 is searched. Set to SEARCH by means of, key. After searching the beginning, MUTE is cancelled. - PLAY - Press the STOP key. Laser OFF Forced feed return - STOP - : MUTE ON = L H : MUTE OFF = H L 0:00 appears in the time indicator. : LDON = H L (IC1, 5 pin) CDX-396/496 CDX-396/496 9 (2) Shown below are the panel key and remote control transmitter functions in the TEST mode. GFunction List of Panel keysNote) Traverse servo means the same as feed servo. PANEL KEY OPEN/CLOSE (SKIP/SEARCH) (SKIP/SEARCH) +10 1 2 3 4 5 6 7 8 9 0 FUNCTION Tray open/close. FOON, TRON, SPON, TVON(FEON). All stop. (Focus, spindle, feed, laser, tray, etc.) Initializes FL display Inner circumference traverse servo. Outer circumference traverse servo. Rotating the mode of coefficients. (Coefficient mode - Coefficient setting - product mode) Pressing twice will set to the product mode. Returns to product mode. Auto adjustment mode 1 (TR-off set, FO-off set, FO-rough gain adjustment) Auto adjustment mode 2 (TR-balance, TR-rough gain adjustment) Auto adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment) 1 TRACK KICK () continuously(Coefficient set up mode : address down) 1 TRACK KICK (+) continuously(Coefficient set up mode : address up) 30 TRACK KICK () continuously(Coefficient set up mode : upper digit down) 30 TRACK KICK (+) continuously(Coefficient set up mode : upper digit up) 150 TRACK KICK () continuously(Coefficient set up mode : lower digit down) 150 TRACK KICK (+) continuously(Coefficient set up mode : lower digit up) CUSTOM CODE = (79)x KEY OPEN/CLOSE REPEAT TIME INDEX PROG CLEAR SPACE 0 1 2 3 4 5 6 7 8 9 +10 RANDOM DIMMER TAPE SYNCHRO PEAK CODE 01 02 04 05 06 07 08 0A 0B 0C 0D 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1E 55 56 57 58 5D FUNCTION Tray open/close. PLAY (FOON, TRON, TVON(FEON), SPON) Inner circumference traverse servo. Inner 10 tracks kick continuously. Outer 10 tracks kick continuously. Outer circumference traverse servo. FOON, TROF (Enter focus search if focus servo is off.) Checks FL display. (88 8888 - goes out - All lamps.) FOON, TROF, TVOF(FEOF) (Enter focus search if focus servo is off.) Rotates or accelerates spindle. Decelerates spindle. (checking EFM pattern and reflected STAT) FOOF, TROF, TVOF(EFOF) 150 TRACK KICK (+) continuously(Coefficient set up mode : lower digit up) Returns to product mode. (tray inoperative.) Auto adjustment mode 1 (TR-off set, FO-off set, FO-rough gain adjustment) Auto adjustment mode 2 (TR-balance, TR-rough gain adjustment) Auto adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment) 1 TRACK KICK () continuously(Coefficient set up mode : address down) 1 TRACK KICK (+) continuously(Coefficient set up mode : address up) 30 TRACK KICK () continuously(Coefficient set up mode : upper digit down) 30 TRACK KICK (+) continuously(Coefficient set up mode : upper digit up) 150 TRACK KICK () continuously(Coefficient set up mode : lower digit down) Rotating the mode of coefficients. SPON (Spindle servo on.) Checks FL display. (All lamps - 88 8888 - goes out.) FOON, TROF, TVOF(EFOF) (Enter focus search if focus servo is off.) All stop. (Focus, spindle, traverse, laser, tray, etc.) Spindle free (off) TV(Feed) REV - GFunction List of Remote Control Transmitter CDX-396/496 CDX-396/496 I ERROR MESSAGE (1) When operation is terminated in an abnormal condition (stop or open), pressing STOP on the remote control while pressing STOP on the panel will set to the error message display enable mode. (2) Shown below is an example of display. (E-73 as an example) 10 (3) This function stays effective till the power is turned OFF. (It is cleared at OFF.) (4) Listed in the table below are error messages. ERROR MESSAGES EX 0 EX 1 E7 1 E7 2 E7 3 E9 4 E 5 EX 7 EX 8 Err DESCRIPTION Data cannot be read after finishing search. Data cannot be read during PLAY(X=0), PA