Denon-PMA710AE-int-sm维修电路原理图.pdf

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1、D&M Holdings lnc. e Copyright 2011 D&M Holdings Inc. All rights reserved. WARNING: Violators will be prosecuted to the maximum extent possible. SERVICE MANUAL INTEGRATED STEREO AMPLIFIER MODELJPE3E2EKE2AE1CE1KEUT PMA-710AE ? Ver. 8 For purposes of improvement, specifications and design are subject t

2、o change without notice. Please use this service manual with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual set. S0279-0V08DM/DG1105 Please refer to the MODIFICATION NOTICE. RadioFans.CN 收音机爱 好者资料库 2 PMA-71

3、0AE 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 or seals. Be sure to heed these cautions and the cautions indicated in the han

4、dling instructions. Caution concerning electric shock! (1) An AC voltage is impressed on this set, so touching in- ternal 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 gloves when servicing while

5、 the set is energized, un- plugging the power cord when replacing parts, etc. (2)There are high voltage parts inside. Handle with extra care when the set is energized. Caution concerning disassembly and assembly! Though great care is taken when manufacturing parts from sheet metal, there may in some

6、 rare cases be burrs on the edges of parts which could cause injury if fingers are moved across them. Use gloves to protect your hands. Only use designated parts! The sets parts have specific safety properties (fire resis- tance, voltage resistance, etc.). For replacement parts, be sure to use parts

7、 which have the same properties. In par- ticular, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the desig- nated parts. Be sure to mount parts and arrange the wires as they were originally! For safety reasons, some parts use tape, tubes or other

8、in- sulating materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wires inside and 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 fo

9、r safety after servicing! Check that all screws, parts and wires removed or discon- nected for servicing have been put back in their original po- sitions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an insu- lation check on the external metal c

10、onnectors and between the blades of the power 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. Us- ing a 500V insulation resistance tester, check that the in-

11、 sulation resistance between the terminals of the power plug and the externally exposed metal parts (antenna ter- minal, headphones terminal, microphone terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired. Concerning important safety parts Many of

12、the electric and structural parts used in the set have special safety properties. In most cases these prop- erties are difficult to distinguish by sight, and using re- placement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will

13、be preserved. Parts with safety properties are indicated as shown below on the wiring dia- grams and parts lists is this service manual. Be sure to re- place them with parts with the designated part number. (1) Schematic diagrams . Indicated by the z mark. (2) Parts lists . Indicated by the z mark.

14、Using parts other than the designated parts could result in electric shock, fires or other dangerous situations. 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 cust

15、omer, 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 side of the power cord is less than 460 kohms, the unit is defective. CAUTION CAUTION RadioFans.CN 收音机爱 好者资

16、料库 3 PMA-710AE DIMENSION 344 434 60 102.520 26520.523 max 50.5165.549 344 4 PMA-710AE WIRE ARRANGEMENT If wire bundles are untied or moved to perform adjustment or parts replacement etc.,be sure to rearrange them neatly as they were originally bundled or placed afterward. Otherwise, incorrect arrang

17、ement can be a cause of noise generation. Wire arrangement viewed from the top Front Panel side Back Panel side 5 PMA-710AE DISASSEMBLY Disassemble in order of the arrow of the figure of following flow. In the case of the re-assembling, assemble it in order of the reverse of the following flow. In t

18、he case of the re-assembling, observe attention of assembling it. About the photos used for descriptions in the “DISASSEMBLY” section. The direction from which the photographs used herein were photographed is indicated at Direction of photograph: * at the left of the respective photographs. Refer to

19、 the table below for a description of the direction in which the photos were taken. Photographs for which no direction is indicated were taken from above the product. TOP CABINET FRONT PANEL ASSYPOWER PCBREAR PANEL Refer to DISASSEMBLY 1.FRONT PANEL ASSYRefer to EXPLODED VIEWRefer to EXPLODED VIEW a

20、nd EXPLODED VIEWPOWER PCB FRONT PCB (Ref. No. of EXPLODED VIEW : 1-2) (Ref. No. of EXPLODED VIEW : 2-1)MAIN PCB ASSY FUNCTION PCBRefer to EXPLODED VIEW (Ref. No. of EXPLODED VIEW : 2-3)POWER TRANSFORMERMAIN PCB ASSY VOLUME PCBRefer to EXPLODED VIEW (Ref. No. of EXPLODED VIEW : 1-1) (Ref. No. of EXPL

21、ODED VIEW : 2-4)POWER TRANSFORMERMCU PCB ASSY SW/HP PCB (Ref. No. of EXPLODED VIEW : 28) (Ref. No. of EXPLODED VIEW : 2-2) (Ref. No. of EXPLODED VIEW : 2-5) The viewpoint of each photograph (Photografy direction) View from aboveFront side 6 PMA-710AE 1. FRONT PANEL ASSY (1) Remove the screws. (2) Cu

22、t the wire clamp bands, then loose the style pins. (3) Disconnect the connector wires, then remove the screws. Proceeding : CABINET TOPFRONT PANEL ASSY View from bottom Style pin : Loose cut CN52CN53CN95CN92 CN94CN50CN55 CN51 CN93 CN94 Please refer to EXPLODED VIEW for the disassembly method of each

23、 P.W.B included in FRONT PANEL ASSY. 7 PMA-710AE 2. POWER PCB 3. REAR PANEL 4. MAIN PCB ASSY 5. POWER TRANSFORMER Proceeding : TOP CABINETPOWER PCB Please refer to EXPLODED VIEW for the disassembly method in POWER PCB. Proceeding : TOP CABINETREAR PANEL Please refer to EXPLODED VIEW for the disassem

24、bly method in REAR PANEL. Proceeding : TOP CABINETREAR PANEL MAIN PCB ASSY Please refer to EXPLODED VIEW for the disassembly method in MAIN PCB ASSY. Proceeding : TOP CABINETPOWER TRANSFORMER Please refer to EXPLODED VIEW for the disassembly method in POWER TRANSFORMAER. 8 PMA-710AE BLOCK AND LEVEL

25、DIAGRAM EQ TONE & LOUDNESS SOURCE DIRECT BALANCE BUFFER MAIN VOLUME POWER AMP SPEAKER A SPEAKER B PHONO CD TUNER LINE 44dB HEADPHONE 35.5dB(MM) VOLATAGE REGULATOR POWER AMP OUTPUT STAGE 16V 16V 16V PHONO EQ TONE POWER AMP FIRST STAGE CONTROL & RELAY STANDBY 30dB 20dB 10dB 0dB -10dB -20dB -30dB -40dB

26、 -50dB -60dB -70dB CD etc. 100mV(-20dB) MM 1.7mV(-55.4dB) 50W/8ohm 20.0V(25.5dB) AC CORD PRE OUT 0.7V/10k ohm(-3dB) INPUT RECODER-1RECODER-2 PREOUT PB REC PB REC 2 4 3 1 2 4 3 1 9 PMA-710AE ADJUSTMENT Idling Current Required measurement equipment: DC Voltmeter 1. Setup (1) Place the unit at an ordin

27、ary position avoiding direct air flow from an air-conditioner or fan. Do the adjustment at a tem- perature between 15 C (59 F) and 30 C (86 F). (2) Set control as follows. POWER switch OFF (j). VOLUME control fully counterclockwise ( c min.) SPEAKER terminals open: do not connect the speakers, dummy

28、 load etc. 2. Adjustment (1) Remove top cover. And then connect DC Voltmeter to the test points CN31 and CN32 of CUP12196B Main PCB. (2) Connect power cord to AC wall outlet, and turn POWER switch ON ( h ). (3) Right after power on, adjust VR31 and VR32 so that the DC voltmeter reads 10 1mV. (4) The

29、n after 2 minutes warm up adjust VR31 and VR32 so that the DC voltmeter reads 10 1mV. (5) And after 10 minutes warm up adjust VR31 and VR32 so that the DC voltmeter reads 10 0.5mV. VR31 CN31 CN32 VR32 Volume DC Voltmeter Power Trans 10 PMA-710AE TROUBLE SHOOTING 1. The power can not be turned on. (P

30、ower indication LED does not light.) 2. The power turned on, but a sound does not output normally. (Both channels) 2.1. 2.2. 2.3. Check the insertion of the Power Part. Check whether power is being supplied to the coil of the standby transformer (T901). Power not supplied. Broken wire in standby tra

31、ns- former (T901) Power supplied. Malfunction of D941-944, C941 or C943. Set remains in standby mode with power indicator LED lit red. Check each connector. The connectors are inserted completely. Malfunction of RC71 or IC41. Power indicator LED remains flashing red and muting mode is not canceled (

32、protection mode is set). Check the power amplifier outputs offset voltage. Offset voltage output is 1V or greater. Damaged power amplifier cir- cuit. No offset voltage is output. Damaged temperature detec- tion circuit or protection circuit. Set operates, but then power indicator LED flashes red (pr

33、otection mode is set). Check the power amplifier outputs offset voltage. Offset voltage output is 1V or greater. Damaged power amplifier cir- cuit. No offset voltage is output.Check the bias current. 11 PMA-710AE 2.4. 3. The power turned on, but a sound does not output normally. (Single channel) Pow

34、er indicator LED is lit normally (green or orange). Check each connector. Is the fuse (F901) normal? Check the voltage of each department. Check the operation of the switching relay, switching IC and speaker relay. Check the Signal line. Power indicator LED is lit normally (green or orange). Check e

35、ach connector. Check the voltage of each department. Check the operation of the switching relay, switching IC and speaker relay. Check the Signal line. 12 PMA-710AE SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. The semiconductor which described

36、a detailed drawing in a schematic diagram are omitted to list. 1. ICs TMP86FH47AUG (IC41) TMP86FH47AUG Terminal Function Pin No.Port NameI/OFunction 1VSSVSS 2XINX IN 3XOUTX OUT 4TESTTEST 5VDDVDD 6P21XTINOMUTE/STANDBY LED 7P22XTOUTO 8RESETIRESET 9P20INT5STOPISTOP ACT. 10P00INT0IPROTECTOR 11P01PDO4/PW

37、M4/PPG4TC4OP. DIRECT RELAY 12P02RXDIRXD 13P03TXDOTXD 14P04SOODATA 15P05SIOSTROBE 16P06SCKOCLK 17P07INT4OS. DIRECT RELAY 18P17IP. DIRECT SW 19P16IS. DIRECT SW 20P15INT3AC RELAY 1 21P14PPGOVOLUME UP 22P13DVOOVOLUME DOWN 23P12INT2TC1IREMOTE IN 24P11INT1IPOWER OFF 25P10PDO3/PWM3TC3AC RELAY 2 26P30AIN0AI

38、MODEL 13 PMA-710AE TC9164AN (IC22) TC9163AN (IC21) 27P31AIN1AISP A/B 28P32AIN2AIREC. SEL 29P33AIN3AIFUNC. SEL 30P34AIN4STOP2OH/P MUTE 31P35AIN5STOP3OSP A 32P36AIN6STOP4OSP B 33P37AIN7STOP5 34VAREFVref 35AVDDAVDD 36AVSSAVSS 37P40OPHONO 38P41OCD 39P42OTUNER 40P43OAUX-1 41P44OAUX-2 42P45OAUX-3 43P46OTA

39、PE-1 44P47OTAPE-2 Pin No.Port NameI/OFunction TC9164AN 1 2 3 4 5 6 7 8 9 10 11 12 13 1415 16 17 18 19 20 21 22 23 24 25 26 27 28 VSS L-S1 L-COM1 L-COM2 L-COM3 ST GND VDD R-COM1 R-COM2 R-COM3 DATA CK L-S4 L-S2 L-S3 L-S5 L-S6 L-S7 L-S8 R-S1 R-S2 R-S3 R-S4 R-S5 R-S6 R-S7 R-S8 L-COM1 L-COM2 L-COM3 ST VD

40、DVSS R-S1 R-S2 R-S3 R-S4 R-COM1 R-S5 R-S6 R-COM2 R-S8 R-S7 DATA CK L-S1 L-S2 L-S3 L-S4 7 8 9 13 11428 27 24 19 18 17 16 15 2 3 4 L-S5 L-S6 L-S7 GND 20 21 22 23 25 26 5 6 10 11 12 L-S8 R-COM3 Level Shifter Latch Circuit Shift Register Level Shifter Latch Circuit TC9163AN 1 2 3 4 5 6 7 8 9 10 11 12 13

41、 1415 16 17 18 19 20 21 22 23 24 25 26 27 28 VSS L-S1 L-COM1 L-COM2 L-COM3 ST GND VDD R-S4 R-COM2 R-COM3 DATA CK L-S4 L-S2 L-S3 L-S5 L-S6 L-S7 L-S8 R-S1 R-S2 R-S3 R-COM1 R-S5 R-S6 R-S7 R-S8 L-COM1 L-COM2 L-COM3 ST VDDVSS R-S1 R-S2 R-S3 R-COM1 R-S4 R-S5 R-S6 R-COM2 R-S8 R-S7 DATA CK L-S1 L-S2 L-S3 L-

42、S4 7 8 9 13 11428 27 24 19 18 17 16 15 2 3 4 L-S5 L-S6 L-S7 GND 20 21 22 23 25 26 5 6 10 11 12 L-S8 R-COM3 Level Shifter Latch Circuit Shift Register Level Shifter Latch Circuit 14 PMA-710AE -MEMO- 15 PMA-710AE PRINTED WIRING BOARDS MAIN PCB ASSY (1/2) COMPONENT SIDE 16 PMA-710AE MAIN PCB ASSY (2/2)

43、 FOIL SIDE 17 PMA-710AE FRONT PCB ASSY (1/2) COMPONENT SIDE 18 PMA-710AE FRONT PCB ASSY (2/2) FOIL SIDE 19 PMA-710AE NOTE FOR PARTS LIST 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 withou

44、t stating its part number 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.

45、Not including General-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:Met

46、al film RK :Metal mixture 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

47、 FR Others * Resistance 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

48、 CS :Tantalum electrolytic 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

49、:10 V 1C :16 V 1E :25 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 number 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