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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
19、-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Part indicated with the mark is not illustrated in the exploded view. WARNING: 1. 2. 3. 4. 5. 6. Resistors RD:Carbon RC:Composition RS :Metal oxide film RW:winding RN:Metal film RK :Metal mix
20、ture P:Pulse-resistant type NL :Low noise type NB :Non-burning type FR :Fuse-resistor F:Lead wire forming 2B :1/8 W 2E :1/4 W 2H :1/2 W 3A :1 W 3D :2 W 3F :3 W 3H :5 W F:1% G:2% J:5% K:10% M :20% Ex.:RN Type 14K Shape and per- formance 2E Power 182 Resist- ance G Allowable error FR Others * Resistan
21、ce 1800ohm=1.8kohm1 82 Indicates number of zeros after effective number. 2-digit effective number. 1.2ohm1 R2 2-digit effective number, decimal point indicated by R. 1-digit effective number. : Units: ohm Capacitors CE :Aluminum foil electrolytic CA :Aluminium solid electrolytic CS :Tantalum electro
22、lytic CQ:Film CK :Ceramic CC:Ceramic CP :Oil CM:Mica CF :Metallized CH:Metallized HS :High stability type BP :Non-polar type HR:Ripple-resistant type DL :For change and discharge HF :For assuring high requency U:UL part C:CSA part W :UL-CSA part F:Lead wire forming 0J :6.3 V 1A :10 V 1C :16 V 1E :25
23、 V 1V :35 V 1H :50 V 2A :100 V 2B :125 V 2C :160 V 2D :200 V 2E :250 V 2H :500 V 2J :630 V F:1% G:2% J:5% K:10% M :20% Z:80% :- 20% P:+100% C:0.25pF D:0.5pF =:Others Ex.:CE Type 04W Shape and per- formance 1H Dielectric strength 3R2 Capacity M Allowable error BP Others Units:F. 2200F2 22 Indicates n
24、umber of zeros after effective number. 2-digit effective number. Units:F. 2.2F2 R2 2-digit effective number, decimal point indicated by R 1-digit effective number. *Capacity (electrolyte only) When the dielectric strength is indicated in AC,AC is included after the dieelectric strength value. *Capac
25、ity (except electrolyte) Units:pF 2200pF=0.0022F2 22 Indicates number of zeros after efective number. (More than 2) 2-digit effective number. Units:pF 220pF2 21 2-digit effective number. Indicates number of zeros after effective numver. (0 or 1) NOTE FOR PARTS LIST RadioFans.CN 4 TECHNICAL SPECIFICA
26、TIONS n ? Rated Output Power : 2-channel driving (CD SP OUT) 70 W + 70 W (8 , 20 Hz 20 kHz, T.H.D. 0.07 %) Dynamic power : 140 W + 140 W (4 , DIN, 1 kHz, T.H.D. 0.7 %) High frequency distortion : 0.01 % (Rated output: 3 dB), 8 , 1 kHz Output terminals : Speaker A or B: 4 16 A + B: 8 16 Suited for he
27、adphones/stereo headphones Input sensitivity/Input impedance : POWER AMP DIRECT: 0.84 V / 47 k Amplifi cation factor: 29 dB n ? Equalizer amplifi er output : 150 mV (REC OUT terminals) Input/output level and impedance : PHONO (MM): 2.5 mV/47 k PHONO (MC): 200 V/100 CD, TUNER, LINE, RECORDER-1, RECOR
28、DER-2: 125 mV/45 k (SOURCE DIRECT OFF) 125 mV/24 k (SOURCE DIRECT ON) RIAA Deviation : PHONO: 20 Hz 20 kHz 0.5 dB Maximum Input : PHONO (MM): 150 mV/1 kHz PHONO (MC): 13 mV/1 kHz Rated Output : PRE OUT: 0.84 V (Input CD 125 mV) n ? SN Ratio (A network) : PHONO (MM): 89 dB (With input terminals short
29、-circuited, 5 mV input signal) PHONO (MC): 74 dB (With input terminals short-circuited, 0.5 mV input signal) CD, TUNER, LINE, RECORDER-1, RECORDER-2: 108 dB (input terminals short-circuited) Tone control : BASS: 100 Hz 8 dB TREBLE: 10 kHz 8 dB n ? Power supply : AC 230 V, 50 Hz Power consumption : 2
30、85 W 0.2 W (Standby) 0.1 W (ECO Standby) Maximum external dimensions : 434 (W) x 134 (H) x 410 (D) mm Weight: 15.5 kg n ? Batteries : R03/AAA Type (two batteries) Maximum external dimensions : 49 (W) x 220 (H) x 21 (D) mm Weight : 110 g (including batteries) DIMENSION 17.5116.5 134 434 344 58.5 20.4
31、 374.2 25263.7 15 344 27.589 45.5 71.5270 410 RadioFans.CN 5 DISASSEMBLY ? ? ? ? ? ? ? ? ? ? ? TOP COVER FRONT PANEL ASSYINPUT UNITBACK PANEL ? DISASSEMBLY ? DISASSEMBLY ? DISASSEMBLY 1.FRONT PANEL ASSY3. INPUT UNIT6. BACK PANEL ?EXPLODED VIEW?EXPLODED VIEW?EXPLODED VIEW ? ? ? ? ?U-COM UNITTRANS ? D
32、ISASSEMBLY ? DISASSEMBLY ?4. U-COM UNIT7. TRANS ?EXPLODED VIEW?EXPLODED VIEW ? ? ?AC UNIT ? EXPLODED VIEW ?REC INPUT UNIT? ? DISASSEMBLY ? ?5. REC INPUT UNIT ?EXPLODED VIEW ? ? ? ? POWER AMP UNIT ? DISASSEMBLY 2. MECHA ASSY ?EXPLODED VIEW ? ? RadioFans.CN ? About the photos used for descriptions in
33、the DISASSEMBLY section. ? ? ? ? ? ? ? ? 1. FRONT PANEL ASSY ? ? The viewpoint of each photograph (Photografy direction) View from above Front side Direction of photograph: B Direction of photograph: D Direction of photograph: C Direction of photograph: A TOP COVERFRONT PANEL ASSY Proceeding : View
34、from bottom RadioFans.CN ? ? ? ? CX151, CX082 CY035 CX061CX065 CY052 CY038 ? RadioFans.CN ? 2. POWER AMP UNIT ? ? ? ? TOP COVERFRONT PANEL ASSY POWER AMP UNIT Proceeding : CX024 CX023 CY091CX052CX033 RADIATOR ASSY RadioFans.CN ? ? ? 3. INPUT UNIT ? ? ? ? View from bottom RADIATOR ASSY Solder TOP COV
35、ERINPUT UNIT Proceeding : Direction of photograph: A Direction of photograph: D CX081CX102CX072CY035 P.W.B. HOLDER CX061 RadioFans.CN ? 4. U-COM UNIT ? ? 5. REC INPUT UNIT ? ? TOP COVERINPUT UNIT U-COM UNIT Proceeding : Direction of photograph: C CY102CY031 CY051 CY091 CY032 P.W.B HOLDER P.W.B HOLDE
36、R TOP COVERU-COM UNIT REC INPUT UNIT Proceeding : Direction of photograph: A RadioFans.CN ? 6. BACK PANEL ? ? ? ? 7. TRANS ? ? TOP COVERBACK PANEL Proceeding : CX047 Direction of photograph: A INPUT UNIT TOP COVERTRANS Proceeding : CORD HOLDER : Loose cut cut cut cut CY031, CY032 CX024 CX022 CX021 C
37、X023 RadioFans.CN 12 IDLING ADJUSTMENT IDLING CURRENT ? ? ? ? ? ? ?j? ?c? ? ? ? ? ? ? ? ? ? ?h? ? ? ? Volume DC Voltmeter Power Amp P.W.B. VR801 Trans Trans TP801TP802 VR802 8U-110081-1 RadioFans.CN 13 Check the insertion of the 8U-110081-2 AC UNIT . Check each connector. ? cycle of the red LED. ? cycle of the red LED. Check the insertion of the ? Check whether power is being supplied to the coil ? (T101). Check whether power is being supplied to the FUSE F-101. Broken wire in standby ?(T101). Broken FUSE F-101. ?
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