Denon-PMAA100-int-sm维修电路原理图.pdf

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1、D&M Holdings Inc. SERVICE MANUAL e e Copyright 2010 D&M Holdings Inc. All rights reserved. WARNING: Violators will be prosecuted to the maximum extent possible. MODELJPE3E2EKEAE1E1KE1C PMA-A100? INTEGRATED AMPLIFIER Ver. 3 Some illustrations using in this service manual are slightly different from t

2、he actual set. Please use this service manual with referring to the operating instructions without fail. For purposes of improvement, specif cations and design are subject to change without notice. S0226-1V03DM/DG1012 Please refer to the MODIFICATION NOTICE. RadioFans.CN 收音机爱 好者资料库 2 SAFETY PRECAUTI

3、ONS 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 line to chassis resistance check. if the leakage current ex

4、ceeds 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 and STANDBY mode, if applicable. CAUTION Please heed the

5、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 cautions indicated in the handling instructions. Caution co

6、ncerning 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 gloves when servicing while the set is energized, unpluggin

7、g 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 metal, there may in some rare cases be burrs on the edges

8、 of parts which could cause injury if fi ngers 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.

9、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

10、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

11、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

12、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

13、nna terminal, headphones terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and 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

14、replacement parts with higher ratings (rated power and withstand 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 p

15、arts with the designated part number. (1) Schematic diagrams .Indicated by the z mark. (2) Parts lists .Indicated by the z mark. Using parts other than the designated parts could result in electric shock, fi res or other dangerous situations. CAUTION Concerning important safety parts RadioFans.CN 收音

16、机爱 好者资料库 3 DIMENSION 60 434 20161 2639435 MAX 332 344 7026163 4 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 arrangement can be a cause o

17、f noise generation. The photograph is PMA-2010AE. Wire arrangement viewed from the top Front Panel side Back Panel side 5 Wire arrangement viewed from the bottom Front Panel side Back Panel side 6 DISASSEMBLY Disassemble in order of the arrow of the figure of following flow. In the case of the re-as

18、sembling, assemble it in order of the reverse of the following flow. In the case of the re-assembling, observe attention of assembling it. TOP COVER SIDE COVER (L)SIDE COVER (R)P.AMP(R) UNIT Refer to DISASSEMBLY 3.P.AMP(R) UNIT and EXPLODED VIEW P.AMP(L) UNITINPUT UNIT and PH/CD TER.UNITP.AMP(R) UNI

19、T Refer to DISASSEMBLY 1.P.AMP(R) UNITRefer to DISASSEMBLY 2.INPUT UNIT (Ref. No. of EXPLODED VIEW : 3-2) and EXPLODED VIEWand PH/CD TER.UNIT and EXPLODED VIEWMULTIPLIER UNIT P.AMP(L) UNITINPUT UNIT (Ref. No. of EXPLODED VIEW : 3-4) (Ref. No. of EXPLODED VIEW : 3-1) (Ref. No. of EXPLODED VIEW : 1-1)

20、 MULTIPLIER UNITPH/CD TER.UNIT (Ref. No. of EXPLODED VIEW : 3-3) (Ref. No. of EXPLODED VIEW : 3-7)CONECT UNIT Refer to EXPLODED VIEW CONECT UNIT FRONT PANEL ASSYBOTTOM COVER (Ref. No. of EXPLODED VIEW : 1-8) Refer to DISASSEMBLY 4.FRONT PANEL ASSYRefer to DISASSEMBLY 5.BOTTOM COVER and EXPLODED VIEW

21、and EXPLODED VIEW DIRECT SW UNITDIODE UNITAC UNIT (Ref. No. of EXPLODED VIEW : 1-2) (Ref. No. of EXPLODED VIEW : 1-7)Refer to EXPLODED VIEW MAIN VR UNITCONTROL UNITAC UNIT (Ref. No. of EXPLODED VIEW : 1-3) (Ref. No. of EXPLODED VIEW : 2) (Ref. No. of EXPLODED VIEW : 1-9) F SW UNIT (Ref. No. of EXPLO

22、DED VIEW : 1-4)CE33W=123M REC OUT SEL. SW UNITRefer to DISASSEMBLY 8.CE33W=123MREC OUT UNIT (Ref. No. of EXPLODED VIEW : 1-5)and EXPLODED VIEWRefer to EXPLODED VIEW P DIRECT SW UNITREC OUT UNIT (Ref. No. of EXPLODED VIEW : 1-6) (Ref. No. of EXPLODED VIEW : 3-8) P SWITCH UNIT (Ref. No. of EXPLODED VI

23、EW : 1-10) P LED UNITSP TERMINAL UNIT (Ref. No. of EXPLODED VIEW : 1-11)Refer to EXPLODED VIEW TONE UNITSP TERMINAL UNIT (L-ch) (Ref. No. of EXPLODED VIEW : 3-5) (Ref. No. of EXPLODED VIEW : 95-1) H/P UNITSP TERMINAL UNIT (R-ch) (Ref. No. of EXPLODED VIEW : 3-6) (Ref. No. of EXPLODED VIEW : 95-2) FL

24、AT AMP UNIT and POWER SUPPLY UNIT Refer to EXPLODED VIEW FLAT AMP UNIT (Ref. No. of EXPLODED VIEW : 4-1) POWER SUPPLY UNIT (Ref. No. of EXPLODED VIEW : 4-2) 7 About the photos used for descriptions in the “DISASSEMBLY” section. The direction from which the photographs used herein were photographed i

25、s indicated at Direction of photograph: * at the left of the respective photographs. Refer to 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. The photograph is PMA-2010AE. 1. P.AMP(L

26、) UNIT (1) Disconnect the connector wires, then remove the screws. 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 Proceeding : TOP COVERSODE COVER (L) P.AMP

27、(L) UNIT CX055 CX053 Direction of photograph: D 8 (2) Loose the cord holder then remove the screws. (3) Remove the screws, then remove the solder. Cord holder : Loose Solder 9 2. INPUT UNIT and PH/CD TER.UNIT (1) Disconnect the connector wires. (2) Remove the screws Proceeding : TOP COVERSODE COVER

28、(R) INPUT UNIT and PH/CD TER.UNIT CY031 CX063 CY032CX141PCB HOLDER CX061 PCB HOLDER PCB HOLDER INPUT UNIT PH/CD TER.UNIT Direction of photograph: C Direction of photograph: C INPUT UNIT INPUT UNIT PH/CD TER.UNIT 10 3. P.AMP(R) UNIT (1) Remove the screws. (2) Disconnect the connector wires, then remo

29、ve the screws. Remove the solder Proceeding : TOP COVERP.AMP(R) UNIT Solder CY056 CX062 11 4. FRONT PANEL ASSY (1) Disconnect the connector wire. (2) Remove the screws. (3) Remove the screws. (4) Loose the Cord holders, then disconnect the connector wires. Proceeding : TOP COVERSODE COVER (L), (R) F

30、RONT PANEL ASSY CX061 Direction of photograph: C View from bottom Direction of photograph: B CX151 CX035CX065CY022CX054 Cord holder : Loose Direction of photograph: B 12 (5) disconnect the connector wire. 5. BOTTOM COVER (1) Remove the screws. CX057 C466 Direction of photograph: B Twist the connecto

31、r wire 5 times and shape it so that it passes under the C466. Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in PANEL FRONT ASSY. Proceeding : TOP COVERSODE COVER (L), (R) BOTTOM COVER View from bottom 13 6. CE33W=123M (1) Cut the wire clamp bands. (2) Remove the scr

32、ews. (3) Remove the screws. Proceeding : TOP COVERSODE COVER (L), (R) BOTTOM COVER CE33W=123M Direction of photograph: D cut View from bottom 14 IDLING ADJUSTMENT IDLING CURRENT Setup 1.Lay the unit at an ordinary position away from a direct current from an air condition or fan. Do the adjustment at

33、 a temperature between 15C (59F) and 30C (86F). 2.Set control as follows. POWER SWITCH OFF (). VOLUME CONTROL Fully counterclockwise in the minimum position ( ). (Main Volume and Semifixed resistors VR501, VR502) SPEAKER Terminals Open: do not connect the speakers, dummy load etc. Adjustment 1.Remov

34、e top cover. And then connect DC Voltmeter to test points of 1U-3708-1 (Lch) and 1U-3708-2 (Rch) Power Amp Printing Wiring Board. 2.Connect power cord to AC wall outlet, and turn POWER switch ON (). Within 10 seconds turn VR501 (Lch) and VR502 (Rch) clockwise so that the DC Voltmeter reads 12 5mV. 3

35、.Then after 2 minutes warmup adjust VR501 and VR502 so that the DC Voltmeter reads 125mV. 4.And after 10 minutes warmup adjust VR501 and VR502 so that the DC Voltmeter reads 125mV. DC Voltmeter Main Volume 1U-3708-2 Power Amp P.W.B. (R) VR502 1U-3708 -1 Power Amp P.W.B. (L) VR501 Power Trans Power T

36、rans 15 BLOCK AND LEVEL DIAGRAM 16 TROUBLE SHOOTING 1. The power can not be turned on. (Power 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 8U-110058-9 AC UNIT. Check the insertion of the 8U-110

37、059 CONTROL UNIT. Check whether power is being supplied to the coil of the standby transformer (T101). Power not supplied. Broken wire in standby trans- former (T101). Power supplied. Malfunction of D101-106, C105 or C106. Set remains in standby mode with power indicator LED lit red. Check each conn

38、ector. The connectors are inserted completely. Malfunction of IC904, IC601 or RL101. Power indicator LED remains flashing red and muting mode is not canceled (protection mode is set). Check the power amplifier outputs offset voltage. Offset voltage output is 1V or greater. Damaged power amplifier ci

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

40、 cuit. No offset voltage is output.Check the bias current. 17 2.4. 3. The power turned on, but a sound does not output normally. (Single channel) Power indicator LED is lit normally (green or orange). Check each connector. Check the voltage of each department. Check the operation of the switching re

41、lay and speaker relay. Check the Signal line. Power indicator LED is lit normally (green or orange). Check each connector. Check the voltage of each department. Check the operation of the switching relay and speaker relay. Check the Signal line. 18 SEMICONDUCTORS Only major semiconductors are shown,

42、 general semiconductors etc. are omitted to list. The semiconductor which described a detailed drawing in a schematic diagram are omitted to list. 1. ICs TMP86FS49BFG (IC601) TMP86FS49BFG Terminal Function Pin No. Terminal nameSignal nameI/OFunction 1VSSVSS-GND 2XINXINI4.19MHz Ceramic resonators con

43、nection INPUT 3XOUTXOUTO4.19MHz Ceramic resonators connection OUTPUT 4TESTTESTINormal(MCU mode)L, Writing (serial PROM mode)H 5VDDVDD-The voltage is switched. (STANDBY : +3.3V, power supply ON : +5V) 6P21(XTIN)RESERVEDO 7P22(XTOUT)RESERVEDO 8#RESETRESETIRESET input 9P20(#STOP/#INT5)STOP_ACTI (STOP)S

44、TOP_MODE of the u-com is canceled by H” edge input. It controls so as not to enter STOP_MODE when becoming “H. 10P00(#INT0)PROTECT_1I (INT)PROTECTION input 1 (ASO protect) 11P01(BOOT/RXD1)RXDIControl/cereal data input for rewriting 12P02(TXD1)TXDOCereal data output for rewriting 13P03(INT1)P.DOWNI (

45、INT)POWER DOWN (power failure) detection input 14P04(SI1)RESERVEDO 15P05(SO1)RESERVEDO 16P06(#SCK1)#RESERVEDO VSS XOUT TEST VDD (XTIN) P21 (XTOUT) P22 RESET (STOP/INT5) P20 (INT0) P00 (TXD1) P02 (SI1) P04 (INT1) P03 (SO1) P05 (SCK1) P06 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 48 47 46 45 44 43 42 41

46、40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 P65(AIN5/STOP1) P67(AIN7/STOP3) P70(AIN8) P72(AIN10) P71(AIN9) P74(AIN12) P73(AIN11) P66(AIN6/STOP2) P14 (TC4/PDO4/PWM4/PPG4) P13 (TC3/PDO3/PWM3) P12 (PPG) P11 (DVO) P10 (TC1) P47

47、P46 (SCK2) P45 (SO2) (BOOT/RXD1) P01 XIN P07(INT2) AVDD P60(AIN0) P61(AIN1) P64(AIN4/STOP0) P62(AIN2) VAREF P63(AIN3) P44 (SI2) P43 P42 (TXD2) P41 (RXD2) P40 P77 (AIN15) P76 (AIN14) P75 (AIN13) (INT3/TC2) P15 (PDO5/PWM5/TC5) P16 (PDO6/PWM6/PPG6/TC6) P17 (SCL) P50 (SDA) P51 P52 P53 P54 P30 P31 P32 P3

48、3 P34 P35 P36 P37 19 17P07(INT2)REMOTE_INI (INT)Remote control input by codes 18VAREFVAREF-It connects it with the same power supply as VDD of 5pin. 19AVDDAVDD-It connects it with the same power supply as VDD of 5pin. 20P60(AIN0)RESERVEDO 21P61(AIN1)P.OFFOOutput port =L fixed 22P62(AIN2)REC OUT_SELI

49、 (A/D)REC OUT SELECTOR Positional detection input 23P63(AIN3)FUNCTIONI (A/D)INPUT SELECTOR Positional detection input (FUNCTION) 24P64(AIN4/STOP0)RESERVEDO 25P65(AIN5/STOP1)RESERVEDO 26P66(AIN6/STOP2)P.DIRECT_SWIP.DIRECT TACT SW key input 27P67(AIN7/STOP3)RESERVEDO 28P70(AIN8)PHONOOPHONO line RELAY/LED control signal 29P71(AIN9)CDOCD line RELAY/LED control signal 30P72(AIN10)TUNEROTUNER line RELAY/LED control signal 31P73(AIN11)LINE1OLINE1 line