Denon-PMA1510AE-int-sm维修电路图 手册.pdf
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1、D&M Holdings Inc. SERVICE MANUAL e e MODELJPE3E2EKK2AE1E1KEUT PMA-1510AE? INTEGRATED AMPLIFIER Ver. 5 Some illustrations using in this service manual are slightly different from the actual set. Please use this service manual with referring to the operating instructions without fail. ? Please refer t
2、o the MODIFICATION NOTICE. RadioFans.CN 2 SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a li
3、ne to chassis resistance check. if the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. Be sure to test for leakage current with the AC plug in both polarities, in addition, in each power ON, OFF
4、and STANDBY mode, if applicable. CAUTION Please heed the points listed below during servicing and inspection. Heed the cautions! Spots requiring particular attention when servicing, such as the cabinet, parts, chassis,etc., have cautions indicated on labels. be sure to heed these causions and the ca
5、utions indicated in the handling instructions. Caution concerning electric shock! (1) An AC voltage is impressed on this set, so touching internal metal parts when the set is energized could cause electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gl
6、oves when servicing while the set is energized, unplugging the power cord when replacing parts, etc. (2) Tere are high voltage parts inside. Handle with extra care when the set is energized. Caution concerning disassembly and assembly! Through great care is taken when manufacturing parts from sheet
7、metal, there may in some rare cases be burrs ? are moved across them. Use gloves to protect your hands. Only use designated parts! The sets parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be sure to use parts which have the same poroperties.
8、In particular, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally! For safety seasons, some parts use tape, tubes or other insulating materials, and some parts
9、are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wores omsode amd clamps are used to keep wires away from heating and high voltage parts, so be sure to set everything back as it was originally. Inspect for safety after servicing! Check that al
10、l screws, parts and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an inslation check on the external metal connectors and between the blades of the power
11、plug, and otherwise check that safety is ensured. (Insulation check procedure) Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and turn the power switch on. Using a 500V insulation resistance tester, check that the inplug and the externally exposed metal parts (ante
12、nna terminal, headphones terminal, input terminal, etc.) is ? repaired. Many of the electric and structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and using replacement parts with higher ratings (rated power and wit
13、hstand voltage) does not necessarily guarantee that safety performance will be poreserved. Parts with safety properties are indicated as shown below on the wiring diagrams and parts lists is this service manual. Be sure to replace them with parts with the designated part number. (1) Schematic diagra
14、ms .Indicated by the z mark. (2) Parts lists .Indicated by the z mark. Using parts other than the designated ? or other dangerous situations. CAUTION Concerning important safety parts RadioFans.CN 3 NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts marked with this symbol z have critical characteristics. Us
15、e ONLY replacement parts recommended by the manufacturer. CAUTION: Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either sid
16、e of the power cord is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. NOTICE: ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE A
17、ND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. Parts for which nsp is indicated on this table cannot be supplied. When ordering of part, clearly indicate 1 and I (i) to avoid mis-supplying. Ordering part without stating its part nu
18、mber can not be supplied. Not including General-purpose Carbon Chip Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. Not including General
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