Onkyo-DVSP404-cd-sm维修电路原理图.pdf
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1、ONSTANDBY DISPLAY MENU SETUP TOP MENU RETURN AUDIOANGLE SUBTITLEZOOM RC-616DV CLEAR OPEN/ CLOSE ENTER 123 6 789 0 45 PLAY MODE DV-SP404 SERVICE MANUALSERVICE MANUAL DVD PLAYER Black and Silver models MODEL DV-SP404 Ref. No. 3947 072006 110-240V AC, 50/60Hz 120V AC, 60Hz BTUA, STUA BTDD, STDD (For US
2、A/Canada, Black/ Silver) RC-616DV SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE
3、-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 A1-1 CAUTION THIS DIGITAL VIDEO PLAYER EMPLOYS A LASER SYSTEM. TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE REA
4、D THIS SERVICE MANUAL CARE- FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE, CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE. USE OF CONTROLS, ADJUSTMENTS OR THE PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPO
5、SURE. TO PREVENT DIRECT EXPOSURE TO LASER BEAM, DO NOT TRY TO OPEN THE ENCLOSURE. VISIBLE LASER RADIATION MAY BE PRESENT WHEN THE ENCLOSURE IS OPENED. DO NOT STARE INTO BEAM. PREPARATION OF SERVICING The laser diode used for a pickup head may be destroyed with external static electricity. Moreover,
6、even if it is operating normally after repair, when static electricity discharge is received at the time of repair, the life of the product may be shortened. Please perform the following measure against static electricity, be careful of destruction of a laser diode at the time of repair. Place the u
7、nit on a workstation equipped to protect against static electricity, such as conductive mat. Soldering iron with ground wire or ceramic type is used. A worker needs to use a ground conductive wrist strap for body. RadioFans.CN 收音机爱 好者资料库 A1-2 IMPORTANT SERVICE SAFETY INFORMATION Safety precautions t
8、o be followed during servicing: 1. 2. Parts marked with an are critical parts for safety. Replace only with the one described in the parts list. Before returning the DVD product to the customer, make the appropriate leakage current check or resistance measurements to ensure that exposed parts are pr
9、operly insulated from the supply circuit. A leakage current check is recommended for this unit. Plug the AC line cord directly into a 120V 60Hz AC outlet (do not use an isolation transformer for this check). Use a leakage current tester (Fig. 1) or a metering system which complies with Underwriters
10、Laboratories (UL 1492). Measure for current from all exposed metal parts of the cabinet to a known earth ground: particularly, any exposed metal part having a return path to the chassis. Any current measured must not exceed 0.5mA. Any measurement not within the limits outlined above are indicative o
11、f a potential shock hazard and corrective action must be taken before returning the unit to the customer. KNOWN EARTH GROUND 1.5K ohm 0.15 F (Reading should not be above 0.5mA) Leakage Current Tester TEST PROBE Test all exposed metal surfaces PRODUCT UNDER TEST 2-Blade polarized type cord set Fig. 1
12、 AC Leakage Test A1-3 IMPORTANT SAFEGUARDS 1. 2. 3. 4. 5. 6. 7. 8. 8A. 9. 10. 11. 12. 13. 14. 15. 16. READ INSTRUCTIONS All the safety and operating instructions should be read before the unit is operated. RETAIN INSTRUCTIONS The safety and operating instructions should be retained for future refere
13、nce. HEED WARNINGS All warnings on the unit and in the operating instructions should be adhered to. FOLLOW INSTRUCTIONS All operating and use instructions should be followed. CLEANING Unplug this unit from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cl
14、oth for cleaning. ATTACHMENTS Do not use attachments not recommended by the units manufacturer as they may cause hazards. WATER AND MOISTURE Do not use this unit near water. For example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool. ACCESSORIES D
15、o not place this unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall, causing serious injury, and serious damage to the unit. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer. An appliance and cart combination should be moved with care.
16、 Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn. VENTILATION Slots and openings in the cabinet and in the back or bottom are provided for ventilation, to ensure reliable operation of the unit, and to protect it from overheating. These openi
17、ngs must not be blocked or covered. The openings should never be blocked by placing the unit on a bed, sofa, rug, or other similar surface. This unit should never be placed near or over a radiator or heat source. This unit should not be placed in a built-in installation such as a bookcase or rack un
18、less proper ventilation is provided or the manufacturers instructions have been adhered to. POWER SOURCES This unit should be operated only from the type of power source indicated on the rating plate. If you are not sure of the type of power supply to your home, consult your appliance dealer or loca
19、l power company. For units intended to operate from battery power, or other sources, refer to the operating instructions. GROUNDING OR POLARIZATION This unit is equipped with a polarized alternating-current line plug (a plug having one blade wider than the other). This plug will fit into the power o
20、utlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. If your unit is eq
21、uipped with a 3-wire grounding-type plug, a plug having a third (grounding) pin, this plug will only fit into a grounding-type power outlet. This too, is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat th
22、e safety purpose of the grounding-type plug. POWER-CORD PROTECTION Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit fr
23、om the appliance. LIGHTNING To protect your unit from a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the unit due to lightning and power line surges. POWER LI
24、NES An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power line
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