Pioneer-XVDV990-cd-sm 电路图 维修手册.pdf

ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2003 TIMERSTANDBY/ONOPEN/CLOSE0 XV-DV99 RRV2792 DVD/CD TUNER XV-DV99 XV-DV990 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). This product is a system(s) component. This product does not function properly when independent ; to avoid malfunctions, be sure to connect it to the prescribed system component(s), otherwise damage may result. Please connect it to the POWERED SUBWOOFER S-DV99SW/S-DV990SW, for adjustment and operation inspection. ModelTypePower Requirement Regional restriction codes (Region No.) Remarks XV-DV99ZYXJ, ZVXJDC power supplied from other system component2 XV-DV990ZYXJ, ZVXJDC power supplied from other system component2 XV-DV990RRV2792 S-DV990SW RRV2811 RRV2806 S-DV990ST DVD/CD TUNER POWERED SUBWOOFER SPEAKER SYSTEM This manual ComponentSystemService ManualRemarks XV-DV99RRV2792 S-DV99 S-DV99SWRRV2807 S-DV99ST DVD/CD TUNER SPEAKER SYSTEM POWERED SUBWOOFER SPEAKER SYSTEM This manual ComponentSystemService ManualRemarks For details, refer to Important symbols for good services . T-ZZV JULY 2003 printed in Japan RadioFans.CN 收音机爱 好者资料库 XV-DV992 1234 1234 C D F A B E SAFETY INFORMATION WARNING ! THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS. LASER DIODE CHARACTERISTICS FOR DVD : MAXIMUM OUTPUT POWER : 5 mW WAVELENGTH : 650 nm FOR CD :MAXIMUM OUTPUT POWER : 7 mW WAVELENGTH : 780 nm Additional Laser Caution : See page 74. 1. Laser Interlock Mechanism Loading switch (S101 on the LOAB Assy) is used for interlock mechanism of the laser. When this switch turned ON in SW2 (XCLOSE) side (OPEN signal is 0V and XCLOSE signal is 3.5V), a laser becomes the status which can completely oscillation. Furthermore, the laser completely oscillates in the disc judgment and disc playback. When player is power ON state and laser diode is not completely oscillating, 780nm laser diode is always oscillating by half power. Laser diode is driving with Q201 (650nm LD) and Q211 (780nm LD) on the DVDM Assy. Therefore, when short-circuit between the emitter and collector of these transistors or the base voltage is supplied for transistors turn on, the laser oscillates. (failure mode) In the test mode , there is the mode that the laser oscillates except for the disc judgment and playback. LD ON mode in the test mode oscillates with the laser forcibly. The interlock mechanism mentioned above becomes invalid in this mode. 2. When the cover is open, close viewing through the objective lens with the naked eye will cause exposure to the laser beam. LABEL CHECK Name Label VRW1872 This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. RadioFans.CN 收音机爱 好者资料库 XV-DV993 5678 56 7 8 C D F A B E Important symbols for good services In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 2. Adjustments To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed. 3. Cleaning For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances. 5. Lubricants, glues, and replacement parts Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used. 4. Shipping mode and shipping screws To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary. 1. Product safety You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual. * When the FFC cable between the VIDEO ASSY-CN8301 and DVDM ASSY-CN 943 is off from the connector and then the power is turned on, the parts below on the DVDM ASSY may be destroyed. Be sure to take care when diagnosing the ASSYS. Refer to P.106. IC851 DSD1791DBR (AUDIO DAC) IC861, IC871DSD1702EG (AUDIO DAC) RadioFans.CN 收音机爱 好者资料库 XV-DV994 1234 1234 C D F A B E CONTENTS SAFETY INFORMATION.2 1. SPECIFICATIONS .5 2. EXPLODED VIEWS AND PARTS LIST.8 2.1 PACKING .8 2.2 EXTERIOR SECTION.10 2.3 LOADING MECHA ASSY .12 2.4 TRAVERSE MECHA ASSY-S .14 2.5 DISPLAY UNIT.15 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.16 3.1 BLOCK DIAGRAM.16 3.2 LOAB ASSY and OVERALL WIRING DIAGRAM.18 3.3 DVDM ASSY(1/4).20 3.4 DVDM ASSY(2/4).22 3.5 DVDM ASSY(3/4).24 3.6 DVDM ASSY(4/4).26 3.7 VIDEO and DSP TRADE ASSYS.28 3.8 DSP ASSY(1/2).30 3.9 DSP ASSY(2/2).32 3.10 FM/AM TUNER MODULE.34 3.11 TATRADE and CONTROL(1/3) ASSYS .36 3.12 CONTROL(2/3) and HP ASSYS.38 3.13 CONTROL ASSY(3/3).40 3.14 LCDCONT, CONNECT, KEY RTOP, KEY R, KEY L and KEY LTOP ASSYS .42 3.15 WAVEFORMS.44 4. PCB CONNECTION DIAGRAM .45 4.1 LOAB ASSY.45 4.2 DVDM ASSY.46 4.3 VIDEO and DSP TRADE ASSYS.48 4.4 DSP ASSY.52 4.5 FM/AM TUNER MODULE.54 4.6 KEY RTOP, KEY R, KEY L and KEY LTOP ASSYS.55 4.7 TXTRADE, CONTROL and HP ASSYS.56 4.8 LCDCONT and CONNECT ASSYS.60 5. PCB PARTS LIST .62 6. ADJUSTMENT .68 6.1 TUNER SECTION.68 6.2 ADJUSTMENT ITEMS AND LOCATION .69 6.3 JIGS AND MEASURING INSTRUMENTS.69 6.4 NECESSARY ADJUSTMENT POINTS .70 6.5 TEST MODE .71 6.6 MECHANISM ADJUSTMENT.72 7. GENERAL INFORMATION.74 7.1 DIAGNOSIS.74 7.1.1 TEST MODE .74 7.1.2 DISPLAY SPECIFICATIONS OF THE TEST MODE.76 7.1.3 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY.77 7.1.4 SPECIFICATION OF MODEL INFORMATION .78 7.1.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE.79 7.1.6 MECHANICAL ERROR HISTORY.80 7.1.7 ID NUMBER AND DATA SETTING.85 7.1.8 TROUBLE SHOOTING .88 7.1.9 DSP TROUBLE SHOOTING.91 7.1.10 SEQUENCE AFTER POWER ON .95 7.1.11 SINGLE OPERATION METHOD.100 7.1.12 PROTECTION CIRCUIT.101 7.1.13 DISASSEMBLY.105 7.2 IC .114 7.3 DISC/CONTENT FORMAT .137 7.4 CLEANING.139 8. PANEL FACILITIES .140 XV-DV995 5678 56 7 8 C D F A B E 1. SPECIFICATIONS Amplifier Section Continuous Power (RMS). . . . . 75 W / channel . . . . . . . . . . . . . . . . . . . . (1 kHz, THD 10%, 6) Disc section Digital audio characteristics . . . . . . . DVD fs: 96 kHz, 24-bit Type. . . . . . DVD system, Video CD system and Compact Disc digital audio system Frequency response 48 kHz sampling. . . . . . . . . . 4 Hz 22 kHz 96 kHz sampling. . . . . . . . . . 4 Hz 44 kHz 192 kHz sampling. . . . . . . . . 4 Hz 88 kHz S/N ratio . . . . . . . . . . . . . . . . . . . . . . . . 108 dB Dyna