Pioneer xvdv 424 service manual
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Extracted text from pioneer xvdv 424 service manual (Ocr-read)
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2 1 23 4 1234 C D F A B E XV-DV424 SAFETY INFORMATION 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. 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 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 (CLOSE) side (OPEN signal is 0V and CLOSE 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 VRW1872 Name Label ∗ : Refer to page 78 on the service manual RRV2946. VRW1961 (LFXJ Type) (MLXJ/NC and YLXJ/NC Types)
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3 1 234 1 23 4 C D F A B E XV-DV424 1. CONTRAST OF MISCELLANEOUS PARTS jpfy For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacent to mark on product are used for disassembly. Reference Nos. indicate the pages and Nos. in the service manual for the base model. NOTES: -When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%). 560 Ω→56 × 10 1 →561 ........................................................ RD1/4PU 5 6 1 J 47k Ω→47 × 10 3 →473 ........................................................ RD1/4PU 4 7 3 J 0.5 Ω→R50 ..................................................................................... RN2H R 5 0 K 1 Ω→1R0 ..................................................................................... RS1P 1 R 0 K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5.62k Ω→562 × 10 1→5621 ...................................................... RN1/4PC 5 6 2 1 F CONTRAST TABLE Part No. No. Mark Symbol and Description XV-DV740 XV-DV424 XV-DV424 XV-DV424 Remarks /KUCXJ /LFXJ /MLXJ/NC /YLXJ/NC PCB ASSEMBLIES NSP MAIN ASSY XWM3253 XWM3250 XWM3250 XWM3250 P9- 5 CONTROL ASSY XWZ3882 XWZ3879 XWZ3879 XWZ3879 NSP COMPLEX ASSY XWM3256 XWM3247 XWM3246 XWM3246 P9- 8 POWER ASSY XWZ3885 XWZ3872 XWZ3871 XWZ3871 PACKING SECTION P7- 1 Power Cord ADG7021 ADG7098 ADG1154 ADG1154 P7- 8 Operating Instructions (English) XRB3037 XRB3036 XRB3036 XRB3036 P7-14 Operating Instructions (French) XRC3147 Not used Not used Not used Operating Instructions (Chinese) Not used XRC3145 XRC3145 XRC3145 P7-17 Operating Instructions (English/French) XRE3084 Not used Not used Not used Operating Instructions (English/Chinese) Not used XRE3085 XRE3085 XRE3085 P7-21 Packing Case XHD3433 XHD3436 XHD3434 XHD3434 P7-23 NSP Warranty Card ARY7045 Not used Not used Not used EXTERIOR SECTION P9- 4 FM/AM TUNER Unit AXX7172 AXX7173 AXX7173 AXX7173 P9-14 Power Transformer (AC110-120V) XTS3075 XTS3075 Not used Not used P9-14Power Transformer (AC220-230V) Not used Not used XTS3077 Not used P9-14Power Transformer (AC240V) Not used Not used Not used XTS3078 P9-15Fuse (FU1 : 6.3A) REK1069 REK1069 Not used Not used P9-15 Fuse (FU1 : T2.5A) Not used Not used REK1026 REK1026 P9-16Fuse (FU2 : 6.3A) REK1069 REK1069 Not used Not used P9-16Fuse (FU2 : T5.0A) Not used Not used REK1029 REK1029 P9-24 Rear Panel XNC3298 XNC3303 XNC3300 XNC3301 P9-54 Name Label XAX3456 XAX3475 XAX3454 XAX3454 P9-55 NSP Fuse Card AAX2374 AAX2374 Not used Not used P9-63 NSP Energy Star Label AAX8022 Not used Not used Not used Push Rivet Not used Not used XEC3034 XEC3034 No. 1 Fan Barrier Not used Not used XMR3089 XMR3089 No. 2 Caution Label Not used VRW1961 VRW1872 VRW1872*1 NSP SISIR Label Not used Not used XAX3469 Not used NSP Black Label Not used XAX3394 Not used Not used FRONT SECTION P11- 9 Front Panel XMB3155 XMB3165 XMB3165 XMB3165 P11-17 F.L Barrier XEC3055 Not used Not used Not used XV-DV424/LFXJ, MLXJ/NC, YLXJ/NC and XV-DV740/KUCXJ are constructed the same except for the following : Notes : For PCB ASSEMBLIES, Refer to CONTRAST OF PCB ASSEMBLIES. The numbers in the remarks column correspond to the numbers on the EXPLODED VIEWS . *1 Refer to LABEL CHECK.