Yamaha-DVDC-900-Service-Manual电路原理图.pdf

DVD-C900 DVD-C900 100653 SERVICE MANUAL DVD PLAYER This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent 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 any 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 accumulated 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 part replacement. Recheck all work before you apply power to the unit. IMPORTANT NOTICE DVD-C900 SERVICE MANUAL DISC MODE ANGLERETURN MULTI SPEED TITLE/INDEX AUDIOSELECT SUBTITLE OFF/ON DVD1 TITLE MENU SET UP ON SCREEN STOPSTILL/PAUSE 32154 7 PLAY 6 +10 098 TIME OPEN/ CLOSEDISC SKIP CANCELRANDOMPROGS/F REPEAT A-B SKIP/SEARCH RadioFans.CN 收音机爱 好者资料库 DVD-C900 DVD-C900 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. EQUIPMENT UNDER TEST WALL OUTLET INSULATING TABLE AC LEAKAGE TESTER OR EQUIVALENT < 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. PROTECTION OF EYES FROM LASER BEAM DURING SERVICING I TO SERVICE PERSONNEL 1 This set employs a laser. Therefore, be sure to carefully follow the instructions below when servicing . 1. Pickup GWave length: 655 nm GLaser power: CLASS II 2. When checking the laser diode emission, keep your eyes more than 30 cm away from the objective lens. I CONTENTS TO SERVICE PERSONNEL .1 PREVENTION OF ELECTRO STATIC DISCHRGE (ESD) TO ELECTRO STATICALLY SENSITIVE (ES) DEVICES.2 SPECIFICATIONS .3 REAR PANELS .4 PRECAUTION LASER DIODE .5 HANDLING PRECAUTIONS FOR TRAVERS DECK .5 INTERNAL VIEW .6 DISASSEMBLY PROCEDURES .78 REPLACING THE MAIN PARTS OF THE TRAVERSE UNIT .910 GREASE APPLICATION DIAGRAM.10 MAIN P.C.B. OPERATION CHECK .11 ADJUSTMENT.1213 TEST MODE .1526 TROUBLESHOOTIG .2730 IC DATA .3146 IC BLOCKS .4752 PIN CONNECTION DIAGRAM .52 DISPLAY DATA .53 BLOCK DIAGRAM .5455 PRINTED CIRCUIT BOARD .5665 SCHEMATIC DIAGRAM .6668 PARTS LIST .6984 SWITCHING POWER SUPPLY .8587 REMOTE CONTROL TRANSMITTER.88 OPERATING INSTRUCTION .8996 RadioFans.CN 收音机爱 好者资料库 DVD-C900 DVD-C900 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. 2 IPREVENTION OF ELECTRO STATIC DISCHARGE (ESD) TO ELECTRO STATICALLY SENSITIVE (ES) DEVICES DVD-C900 DVD-C900 U . U.S.A. model R . General model T . China model Manufactured under license from Dolby Laboratories Licens- ing Corporation. Dolby and the double-D symbol V are trademarks of Dolby Laboratories Licensing Corporation. I SPECIFICATIONS 3 I AUDIO SECTION Frequency Response DVD (48kHz Sampling)2 Hz to 22 KHz DVD (96kHz Sampling)2 Hz to 44 KHz CD, Video CD2 Hz to 20 KHz Harmonic Distortion+Noise (1kHz)0.002% or less S/N Ratio115 dB or more (Weighted) Dynamic Range DVD (48kHz, 24 bit)104 dB or more CD, Video CD100 dB or more Output Voltage (1 kHz, 0 dB)2.0 0.3V I VIDEO SECTION VIDEO output1 Vp-p (75 ohms) S VIDEO output Y output1 Vp-p (75 ohms) C output U model0.286 Vp-p (75 ohms) R, T models0.3 Vp-p (75 ohms) COMPONENT VIDEO output Y output1 Vp-p (75 ohms) Pb output U model0.648 Vp-p (75 ohms) R, T models0.7 Vp-p (75 ohms) Pr output U model0.648 Vp-p (75 ohms) R, T models0.7 Vp-p (75 ohms) I GENERAL Power Requirements U model120V, 60Hz T model220V, 50Hz R model110 to 240V, 50/60Hz Power Consumption30W Dimensions (W x H x D) (Without side panels)435 x 116 x 404 mm (17-1/8” x 4-9/16” x 15-7/8”) (With side panels)473 x 116 x 404 mm (18-5/8” x 4-9/16” x 15-7/8”) Weight (Without side panels)6.2 kg (13 lbs 10 oz) (With side panels)7.2 kg (15 lbs 13 oz) AccessoriesAudio/video connection cord Remote control transmitter Dry-cell: x2 (Size “AA”, R06) * Specifications subject to change without notice. LOCALE MANAGEMENT INFORMATION Locale Management Information : This DVD player is designed and manufactured to respond to the Locale Management Information that is recorded on a DVD disc. If the Locale number described on the DVD disc does not correspond to the Locale number of this DVD player, this DVD player cannot play this disc. This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. q w r w t t r w y e t DVD-C900 DVD-C900 I REAR PANELS MU model MR model MT model 4 DVD-C900 DVD-C900 5 I PRECAUTION LASER DIODE I HANDLING PRECAUTIONS FOR TRAVERS DECK DVD-C900 DVD-C900 6 I INTERNAL VIEW 43215 67 435 (171/8) 473 (185/8) 100 (315/16) 16 (5/8) 116 (49/16) 4 (3/16) 6 (1/4) 394 (151/2) 404 (157/8) G DIMENSION Unit : mm (inch) q SWITCHING POWER SUPPLY w CM-200 UNIT e CLAMPER ASSY r P.C.B. OPERATION (2) t P.C.B. OPERATION (1) y TRAY ASSY u P.C.B. MAIN DVD-C900 DVD-C900 7 I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) Fig. 2 1. Removal of Top Cover event log, error log and timer log. Immediately after this sub mode has been set, the event log (page 1) is displayed. The type of the log on display (event, error or timer) can be changed. When the page is changed while the event log or the error log is displayed, all log display becomes available. Key operationDescription SKIP/SEARCH + on remote control unitThe display is changed to the next log. SKIP/SEARCH - on remote control unitThe display is changed to the previous log. W on remote control unitThe display is changed to the next page. Q on remote control unitThe display is changed to the previous page. 23 (*1) When operating from DISC2 to DISC3 and from DISC3 to DISC4 on the panel, leave about a 5-seconds interval between operations. DVD-C900 DVD-C900 Event log display The event log screen shows 5 event logs for each page. There are up to 50 pages. Log Display 00 0163EAEC 13 81AE - 01 0163EAEA 13 80C8 - 02 0163EAD8 13 81AC - 03 0163EAC4 13 81B8 - 04 0163EABF 13 81B3 - - - - - - - - - - - SKIP/SEARCH Log SwitchPrev.PageNext PageQW Event Log Operation method to change to previous/next page Extended log information for extended block 3 Extended log information for extended block 1 Extended log information for extended block 2 Log No. Accumulated energized time (*1) during log recording Log task No. Basic log information Operation method to change log Log type Error log display The error log screen shows 5 error logs for each page. There are up to 12 pages. Log Display 00 0160FF3F 13 0200 EE0302ED0000 01 0160FF3F 13 8300 - 02 014B8604 17 F601 25346A2210EF 03 014B8601 13 0200 6A2210EF0000 04 014B8601 13 8200 - 000302B30302 - 800000040000 - 2210F0220ED2 - 00220ED22534 - 800000040000 - SKIP/SEARCH Log SwitchPrev.PageNext PageQW Error LogLog Display System Timer Laser Timer Clamp Counter 0163F0A7 00B29A98 00000ABF SKIP/SEARCH Log SwitchPrev.PageNext PageQW Timer Log Accumulated energized time when obtaining timer log Laser timer Counted number of clamp mechanical unit operation (Clamping and unclamping are counted as 1 time each.) Timer log display The timer log screen has 1 page. Note 1 : All numeric values including the log No. are displayed in hexadecimal. Note 2 : When displaying the basic log information, the upper byte is used as the basic log information 1. Note 3 : When displaying the extended log information, the uppermost byte is used as the extended log information 1 and the lowermost byte as the extended log information 6. Note 4 : If no extended block exists, - should be used to display the extended log information of the applicable extended block. 54321 Represents sub mode No. Log typeRepresented by Event log001 Error log002 Timer log003 Represents log type. 0:00:00 on display constantly. 24 (*1)1 = 160 ms FF = 255 x 160 ms 100 = 256 x 160 ms 177 = 375 x 160 ms = 1 minute DVD-C900 DVD-C900 Clearing log The data of each log (event, error or timer) can be cleared individually. In case of the timer log, the data is cleared by items. Before executing the clear command, a message to confirm execution of the clear function appears. On the screen after the clear function has been executed, the value which has been cleared appears. To clear the event log a. Using SKIP/SEARCH +/-, have the event log screen displayed. b. Press the CANCEL key on the remote control unit. Then a message to confirm execution of the clear function appears on the screen. Event log clear confirmation screen Note: When the message appears, NO is selected (highlighted). Select YES or NO by using H and G keys. The highlight moves as H and G keys are operated. Pressing the SELECT key will finalize the selection. Log Display Are you sure?Yes No SELECT H G Clear Event Log Set Log Display Are you sure?Yes No SELECT H G Clear Error Log Set To clear the error log a. Using SKIP/SEARCH +/-, have the error log screen displayed. b. Press the CANCEL key on the remote control unit. Then a message to confirm execution of the clear function appears on the screen. Error log clear confirmation screen Note: When the message appears, NO is selected (highlighted). Select YES or NO by using H and G keys. The highlight moves as H and G keys are operated. Pressing the SELECT key will finalize the selection. To execute clear function c. Using H and G keys on the remote control unit, select YES and then press the SELECT key on the remote control unit. The entire event log is cleared and the event log screen is restored. To cancel clear function c. Using H and G keys on the remote control unit, select NO and then press the SELECT key on the remote control unit. The event log is not cleared and the event log screen is restored. To execute clear function c. Using H and G keys on the remote control unit, select YES and then press the SELECT key on the remote control unit. The entire error log is cleared and the error log screen is restored. To cancel clear function c. Using H and G keys on the remote control unit, select NO and then press the SELECT key on the remote control unit. The error log is not cleared and the error log screen is restored. 25 DVD-C900 DVD-C900 To execute clear function d. Using H and G keys on the remote control unit, select YES and then press the SELECT key on the remote control unit. The log corresponding to the selected item is cleared and the timer log screen is restored. To cancel clear function d. Using H and G keys on the remote control unit, select NO and then press the SELECT key on the remote control unit. The log corresponding to the selected item is not cleared and the timer log screen is restored. To clear timer log a. Using SKIP/SEARCH +/-, have the timer log screen displayed. b. Press the CANCEL key on the remote control unit. Then timer log items appear on the screen for selection. Screen for selection of timer log it