Kenwood-CD206-cd-sm 维修电路原理图.pdf

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1、MULTIPLE CD PLAYERCD-206/DPF-R6010/R6010ESERVICE MANUAL 1998-3/B51-5418-00 (K/K) 3430TEXT DISP. ALL INFO.TIME DISP.REPEATRANDOMP.MODEDISC SKIPEDIT41DISC 1DISC 2DISC 3DISC 4DISC 5067PHONES-ON STANDBYLRVARI ABLELINE OUTPUTDIGITAL OUTPUTSYSTEM CONTROLOPTICALCOAXIALSL16XS 8TEXTPanel*(A60-)Knob (POWER)*(

2、K27-)AC power cord*(E30-)Miniature phone jack(E11-0293-05)Oscillating module(W02-1114-05)Phono jack(E63-1009-05)Slide switch(S31-2132-05)Phono jack(E63-0199-05)Metallic cabinet(A01-3547-01)Power cord bushing(J42-0083-05)Front glass(B10-2466-03)Knob assy*(K29-)Phone jack(E11-0127-05)* Refer to parts

3、list on page 18 .In compliance with Federal Regulations, following are reproduc-tions of labels on, or inside the product relating to laser productsafety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open

4、 and interlock defeated.AVOID DIRECT EXPOSURE TO BEAMCD-206/DPF-6010E(K) 2P( 98.4.24 10:13 PM yW 2RadioFans.CN 收音机爱 好者资料库CD-206/DPF-R6010/R6010E2CONTENTS / ACCESSORIESRANDOMDISC SELECTOROUTPUT12345REPEATDOWNUPDISC SKIP12P.MODE345TIMEDISPLAY6EDIT789CHECKTEXTDISPLAY0+10CLEARALL INFO.6ALL TEXTSEARCHTIT

5、LE SEARCH47REMOTE CONTROL UNITRC-P0601 1CONTENTS / ACCESSORIES . 2CIRCUIT DESCRIPTION.3ADJUSTMENT. 6PC BOARD . 7SCHEMATIC DIAGRAM . 11EXPLODED VIEW . 16PARTS LIST. 18SPECIFICATIONS .Back coverAccessoriesContentsAudio cord (1)(E30-0505-05)System control cord (1)(E30-2733-05)AC plug adapter (1)(E03-01

6、15-05) : M type onlyRemote control unit (1)(A70-1134-05) : RC-P0601Batteries (R6/AA) (2)Battery cover: (A09-0356-08)CD-206/DPF-6010E(K) 2P( 98.4.24 10:13 PM yW 3RadioFans.CN 收音机爱 好者资料库CD-206/DPF-R6010/R6010E3CIRCUIT DESCRIPTIONCDM25MECHA SWLOADINGDRIVERROTARYDRIVER1. Microprocessor : uPD78055GC-A03

7、(X32, IC3)1-1 Microprocessor periphery block diagram53 CLK54 LAT55 DATA192656 SENSE(AD0AD7)51 FOK273262 SCOR(A8A13)16 SUBQ58 GFSRD 4018 SQCKWR 4152 MONWAIT 4257 MUTEGASTB 4310 SCLK8 SRDTDEFECT 7363 DQSYuPD78055GC-A0336 OPEN_SW37 CLOSE_SW38 UP_SW39 DOWN_SW49 DISC_SENS48 POSI_SENS44 SLT_SWSGATE 6434 O

8、PENMSCK 6535 CLOSEMSDATE 6645 R_TRAY_S46 R_TRAY_R47 R_TRAY_L67,80,13LED1550 LDC59 RMUTEREM 6112 DATA8/16bit 1513 CLK14 CESDATA 577 A/D KEY0SBUSY 678 A/D KEY179 A/D KEY2RESET 60CXD2507AQCLK(DSP)XLTDATASENSFOKSCORSQSOGFSSQCKMONMUTEX32, IC3X32, IC2LC89710MSCLK(CD TEXT)SRDTDQSYX32, IC6HM62256BLFP 8T(SRA

9、M)ORW242575-70LL/TC74HC373AF(D-LATCH)OEWECELEX32, IC7SGATESCKSDATAKAN03LASER ON / OFFANALOG METELC75710(DOT DRIVER)FIP15XM1BA(FL)REMOCONDEFECT NGX32, IC4, IC5X25, IC18bit/16bitSERIALCOMMUNICATIONRESETPORT(V) A/D KEY0 (77PIN)A/D KEY1 (78PIN)A/D KEY2 (79PIN)4.9 4.4UPDISC1TEXT DISPLAY4.4 3.8DOWNDISC2AL

10、L INFO.3.8 3.2FFDISC3P. MODE3.2 2.5FBDISC4TIME DISPLAY2.5 1.9EDITDISC5RANDOM1.9 1.3DISC SKIPOPEN/CLOSEREPEAT1.3 0.6PLAY/PAUSE0.6 0.2STOPKEY TABLELED1 5CD-206/DPF-6010E(K) 2P( 98.4.24 10:13 PM yW 6CD-206/DPF-R6010/R6010E4CIRCUIT DESCRIPTIONPin No.NameI/ODescription1LED3ODISC3 IN/OUT.H : LED lights-ON

11、 (Disc IN)2LED4ODISC4 IN/OUT.H : LED lights-ON (Disc IN)3LED5ODISC5 IN/OUT.H : LED lights-ON (Disc IN)4AVssVss (GND).5S.DATAI/OSerial DATA signal input/output.6S.BUSYI/OSerial BUSY signal input/output.7AVref1IVdd (+5V).8SRDTILC89710M (CD TEXT decoder) DATA input.9NCONo used.10SCLKOLC89710M (CD TEXT

12、decoder) CLOCK output.11STANDBYONo used.H : LED lights-ON12DATAOLC75710 (DOT driver) DATA output.13CLKOLC75710 (DOT driver) CLOCK output.14CEOLC75710 (DOT driver) CE output .158/16bitI8bit/16bit change-over.H : 16bit16SUBQIQ data input.17NCONo used.18SQCKOQ data CLOCK output.19-26AD0 - AD7I/OHM62256

13、BLFP12T (SRAM) ADR/DATA input/output.27-32A8 - A13OHM62256BLFP12T (SRAM) ADRESS output.33VssGND.34OPEN MOTOROTray motor control OPEN.H : OPEN/T.U.DOWN35CLOSE MOTOROTray motor control CLOSE.H : CLOSE/T.U.UP36OPEN SWITray open SW input.L : OPEN37CLOSE SWITray closure SW input.L : Closure38UP SWIMechan

14、ism up SW input.L : UP39DOWN SWIMechanism down SW input.L : Down40RDORead strobe signal output.41WROWrite strobe signal output.42WAITIExternal waiting signal input (No used).43ASTBOAddress strobe signal output.44SLT SWIStart limit SW input.45R_TRAY_SORotary tray motor control.L : Deceleration46R_TRA

15、Y_RORotary tray motor control.H : CCW47R_TRAY_LORotary tray motor control.H : CW48DISC_SENSEIDisc sensor.H : Disc-IN49POSI_SENSEIPosition sensor.L : Detection position 50LDCOLaser signal output.L : Laser diode ON51FOKIF. OK input from CXD2507AQ.52MONOSpindle motor ON/OFF change-over to CXD2507AQ.53C

16、LKOCLOCK output to CXD2507AQ.54LATCHOLATCH output to CXD2507AQ.55DATAODATA output to CXD2507AQ.56SENSEISENSE input from CXD2507AQ.57MUTEGODigital mute control.58GFSIGFS input from CXD2507AQ.59RMUTEGOAnalog mute control.60RESETIReset input.1-2 Pin descriptionCD-206/DPF-6010E(K) 2P( 98.4.24 10:13 PM y

17、W 75CIRCUIT DESCRIPTIONCD-206/DFP-R6010/R6010EPin No.NameI/ODescription61REMIRemocon signal input.62SCORISub code frame sync detection signal.63DQSYIText data reading permission signal input.64SGATEODATA output to KAN03.65SCKOCLOCK output to KAN03.66SDATAOEnable output to KAN03.67LED1ODISC1 IN/OUT.H

18、 : LED lights-ON (Disc IN)68VddPower supply (+5V).69X2System clock input.70X1ISystem clock input.71ICGND.72XT2No used.73GNDGND.74AVddVdd.75AVref0IVdd.76A3No used7779A/D KEY0-KEY2IA/D key input.80LED2ODISC2 IN/OUT.H : LED lights-ON2. Test mode2-1 Setting the test mode The microprocessor built in the

19、unit can be put to TESTMODE by just pressing the RANDOM key when set topower on.2-2 Key vs Function in test modekeysDisplayDescriptionRemarks(Keep to press RAN-DOM key and AC ON)8 03 | |:| |Setting the test modePLAY/PAUSE 68 03 | |:| |(1) Focus servo ON(2) Tracking servo OFF(3) Feed servo OFFTE-bala

20、nce adjustment 05 00 : 00(1) Focus servo ON(2) Tracking servo ON(3) Feed servo ONFocus gain / Trackinggain and FE-balanceadjustmentUP FL all light up dot demonstration mode normal test mode indication FF 1FEED OUTMove the pick-up to the direction of the outer circumfer-ence.FB FEED INMove the pick-u

21、p to the direction of the inner circumfer-ence.STOP 7TEST 00Disc will be stopped.8 BIT SYNC16 BIT SYNC8 bit sync and 16 bit sync will be displayed by changingthe SL16/XS8 switch on the rear panel.RANDOMChange the output level cyclically. Max -10dB Min DOWN 4 01Cancellation of the test mode and 01 pl

22、ay.CD-206/DPF-6010E(K) 2P( 98.4.24 10:13 PM yW 96ADJUSTMENTCD-206/DPF-R6010/R6010EFIG.GND+_L.P.F.+L.P.F.VTVMVTVM12345671.2 kHz50 mVrms(a)No.ITEMINPUTSETTINGSOUTPUTSETTINGSALIGNMENTPOINTSALIGNFORPLAYERSETTINGS1LASER POWERApply the sensor sectionof optical power meteron the pickup lens.On the power fr

23、om0.08 to 0.15 mW,when the diffractiongrating is correctlyaligned with the RFlevel of 1.0 Vp-p ormore.While pressing theRANDOM key, turnthe AC ON. (Testmode) Press thePLAY/PAUSE key,then confirm that thedisplay is 03.(a) Laser powerPickup3FOCUS ERRORBALANCETest discType 4Connect an oscilloscopeas fo

24、llows.CH1 : RF (CN2 pin 1)CH2 : FE (CN2 pin 2)FE BALANCEVR1Optimum eye pat-ternPress thePLAY/PAUSEkey,then confirm that thedisplay is 05.Note:Type 4 disc : SONY YEDS-18 Test Disc or equivalent.LPF: Around 47 k+ 390 pF or so.0.080.15 mWOptical power meter2TRACKING ERRORBALANCETest discType 4Connect a

25、n oscilloscopeas follows.CH1 : RF (CN2 pin 1)CH2 : TE (CN2 pin 6)TE BALANCEVR2Symmetry betweenupper and lower pat-ternsPress thePLAY/PAUSE key,then confirm that thedisplay is 03.CN2(e) Tracking gain(e)4TRACKING GAINTest discType 4Apply signal of1.2 kHz,50mVrms toCN2 pin 5-6.Connect a LPF to CN2pin 5

26、-6 to which youconnect an oscilloscopeor AC voltmeters.TRACKINGGAINVR3Two VTVMs shouldread the samevalue.Press thePLAY/PAUSE key,then confirm that thedisplay is 05.Step 14 are in TEST MODECD-206/DPF-6010E(K) 2P( 98.4.24 10:14 PM yW 10ABDFHJCEGI2135746Refer to the schematic diagram for the value of r

27、esistors and capacitors.PC BOARD(Component side view)78CD player unit (X32-333x-xx)0-13 : DPF-R6010/R6010E (XTEE2)CD-206(KP)0-24 : DPF-R6010(M)CD-206/DPF-6010E(K) 4P( 98.4.24 10:02 PM y W 1KMOQSLNPRT2135746PC BOARD(Component side view)910Display unit (X25-5900-10)Refer to the schematic diagram for t

28、he value of resistors and capacitors.CD-206/DPF-6010E(K) 4P( 98.4.24 10:02 PM y W 22135746ABDFHJCEGITRAVERSE UNIT D40-1515-05(X92-1930-10/X92-1960-91)MECHA. ASSY (CDM-25)PICKUP (KSS-213C)CD PLAYER UNIT(E/6)(X32- ) (F/6)(X32- ) IC23IC22(X32-3330-XX) (A/6)IC4IC5IC6IC3IC7IC2IC1FBAEPDDCMOTORMLDSLTFEEDMD

29、ISCMOTORUP/DOWNCLAMP SWTRAY SWOPEN/CLOSEMLOADINGMOTORQ19DRIVER6CH BTLADJUSTMENTCN9PH1D31MROTARYMOTORPHOTOPHOTOWH4E6: SIR-33ST3E7: RPT-38PT3F: T95-0145-05TRANSISTORINTERRUPTERDIODEPHOTOPH2D65PH1PH2AVR+5VD30ICRESETROTARY MOTORON/OFF CONTROLQ11Q10D9D8D7CONTROLON/OFFLASERDRIVERLASER DIODE(BOTTOM VIEW)(B

30、OTTOM VIEW)D-LATCH S-RAM ICMEMORYCD TEXT DATAD6DIGITAL)( CN5(BOTTOM VIEW)CD TEXTDATA LSI(BOTTOM VIEW)u-COM(BOTTOM VIEW)D.A.C.DIGITAL FILTERD.R.I.V.E.D2D3CN4CN3(BOTTOM VIEW)D.S.P.CONTROLFE BIASD5CONTROLFE BIASFE-BIASTE-BALQ1Q2Q3Q4T-GAIND4D1CN2CN1RF/SERVO IC)(10KR8910KTRACKING COILFOCUSING COILFM+354E

31、VCC321+5V+2.5VVC13PD-VPD1211LD10GNDF98LANDSHORTBC76ADSL-SWSL-SW6FM-45(GND)OPN-M(TLM)(TLM)OPN-SW3DM-2D.MDM+1FCS-TRK-1615TRK+FCS+148GND67GND45DOWN-SWCLS-SWUP-SWCLS-M21L.MC200 27P1.9V2.0V4.3V2.0V2.1V4.3V2.1V0.9V2.2V2.2V1.7V2.2V4.2V4.1V0V4.2V4.3V0.9V0V0V2.1V2.0V4.6VTRAY CLS: 1.9VTRAY OPN: 1.9V4.3V5.0V4.

32、6V4.1V4.5V4.3V4.6V2.1VRTL: 0V RTR: 2.5V0.9V2.0V2.4V2.0V2.4V2.4V2.0V2.4V2.0V2.0V2.0V2.1V2.1V2.1V2.1V2.1V2.1V1.6V2.7V2.1V2.0V2.4V2.0V2.4V1.6V1.7V2.1V1.7V2.4V2.0V2.4V2.0V2.1V2.1V2.1V2.0V2.0V2.1V2.1V0V4.2V4.2V1.5V4.2V4.2V4.2V0V4.2V4.2V4.2V0VOFF: 0VON: 4.2VMUTE0V0.9V0V4.2V4.2V4.2V2.1V2.1V2.1V2.1V4.2V4.2V

33、4.2V1.6V4.5V4.3VC41+100u10+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B+B220R56R21258+B+B41+B+B+B+B+B+B6257ON: 3.0VOFF: 4.2V4.2V0V0.9V4.2V4.7VRTL: 2.5V RTR: 0VRTR: 2.7VRTL: 2.7V2.1V9.2V3.5V8.6V2.1V4.3V4.0V2.1V0V2.0VOFF: 4.2VON: 0V3.7V0V0.6V4.2V2.2V2.1VR92.1V2.1V47P0.12.1V2.1V2.1V2.1V2.1VR442.1V2.1V2.1V3.

34、0V2.8V1.1V2.1V1.9V1.8V0.9V4.2V1.2V4.2V0V4.6V4.2V4.2V4.2V2.1V2.1V2.1V2.1V0.8V2.1V2.1V2.3V2.1V2.4V2.1V2.1V2.1V2.1V+-PH2(C)67GNDPH1(C)PH2(A)345PH1(A)(TRM)TRYR-MTRYL-M12(TRM)R.M3213212.1V1.6V2.7V1.7V2.1V1.7V1.6V0V4.2V0V4.2V0VSL16: 4.2V0V4.2V0V4.2V0VXS8: 0V0V4.2V2.1V2.1V4.3V0V1.8V1.4V1.1V4.1V4.2V2.1V4.3V

35、+B+B+B+B+B+B 100u10C50+C13510u16R18410K+C121330u6.331+B+B+B+B+B+B+B+B4948+B+C4810u16100u10+C49323837369.1K9.1K35341.5K1.5K44R7347K10KR76R786.8K7.5KR7747KR74R7547K282950515253 R81 47K20R71R70R69R68R190R189R188R187R673947K4.7K4.7K47K4.2V0V0V0V4.2V4.2V4.2V4.2V4.2V4.2V0V0V0V2.4V2.0V2.4V2.0V3534C470.10.1

36、C462829171819741110121315141632TRK+TRK-31LOUT1GNDFCS-30LOUT2FCS+28L IN2TRK27MUTEL IN1FCSVCC25GNDREG I24BIASGNDVCC2629REG BVCCR IN2REG ODMSLD212223R IN1DM+ROUT1DM-18193423141235689+B+B+BR2091KR211.5M216.3 C560.0159+B0.01C14219Q3+BQ2+B+B+B2120R72470C5100u10+C31100u10C320.1IC5IC410100uC19+150KR28830.01

37、C141810X15116184341444520GNDSLD-17SLD+ROUT2R3410K8DOWN SW1TRYL M(TRM)354GNDPH2(A)PH1(C) DSENCETRYR M(TRM)267PH2(C)PH1(A)+BR931MR94220+B0.1C151MHz16.934482PC62C5315P470R64470470R63R65470R66470470201921222423252610192078921222625242322192015PC54C52C5110 5455 1312143837393644181719201K4849R92R91 180R90

38、 180634524236262425232231302928272728323029C373300P45678910R61470R60470R62+220u0.17.5K5250R2510KR20 110K110KR190.047C11C10 220PC29R29C91000PR181MR1710K1112131516181917142010Q4LE9Q3GNDD48D3D56D2Q65Q1Q2Q5D63D1Q72Q0D0D747VCCCE1151617192022232118252426272814D4D313D2VSSD512D1D610D0CE9A1A0D7A87A2A96A4A3OE

39、811A10A5A12A11A7A6345WEA13VCCA1412123567414SBSOEXCK13DQSYVDDSCOR12SRDTWFCK10SCLKXMODE9SW1SW2MCKGNDTEST8115CLS SW21OPN M(TLM)CLS M(TLM)3OPN SW4GND6UP SW7GND6DM+5DM-3SLM-4SLM+2SW GND1SLT SWAD221AD322AD423AD524AD625AD726A827A928A1029A1130A1231A1332VSS33OPEN34CLOSE35OPNSW36CLSSW37UPSW38DWNSW395SDATA6SBU

40、SYDATA557AVREFXLAT548SRDTCLOCK539NCMON5210SCLKFOK5111STANDBYLDC5012DATADSENCE4913CLKPSENCE4814CERTR47158/16BITRTL4616SQSIRTS4517NCSLT SW4418SQCKSTB4319AD0WAIT4240RD2041WRAD116GNDNRSTO176059GNDNC0.1C36R52 100KR51 1MC35 0.011500PC34R503.3K3.3KR48C330.04710KR49555618451644430.01C30R210 1K1000P5453100KR

41、47R53 470R54 470R55 47059565755544544431918LRCKO20BCKO22TEST0TEST121DATAORESETNRZDACTEST22423NC25NC8FSLRCKO278FSRDATAO288FSBCKO8FSLDATAO2630NCVDD1NC32BCKIMCKTH29424140393837363534333231NC5857LRLH56MMOD1MMOD05455NMUTEDACTEST0NCLZDACTEST1LO+GNDARVDARLO-RO-VDALRO+HCKO5352MCKOVDX51XO49GNDX48XI5054LRCKI7

42、6NFRNTNRAMRS98DRONNNODR1110P/SSDATANCVDD461312SCKSGATE1514SDAC8FS47GNDALDATAI46Q1C2133KQ4L110uHR5 75KVR2 47K9.1KR6 1004.7KR420.022C28R4362K20KR4633KVR1R4520K100R14R136.8K2.4KR12VR310KR8R7100K330KC10.01100KR110.047C2C3 C4 R10 47KR35 240KR314.7KR304.7K0.033C180.01C20R33150KR3218KC16 10u25C17 0.01R27 2

43、2K100KR26C60.10.1C70.1680KR16C8+C12 10u16R22 1.5MC13 0.039R23 390KC14 0.01R24 56KC15 150P0.01C22 0.03319WDCKMNT03318ASYEXTAI3417ASY0XTA03516ASY1XTSL3615BIASFSTT3714RFC4M3813AVDDDOUT3912CLTVEMPH4011AVSSWFCK4110VSSVSS429PCOSCOR438FILISBSO447FIL0EXCK456TESTSQSO5LOCKSQCK474MDSMUTE483MDPSENS492MONXRST502

44、0LRCKXLON6421PCMDSPOD6322BCKSPOC6223GTOPSPOB6124XUGFSPOA6025XPCKCLKO5926VDDVDD5827GFSXLTO5728RFCKDATO5629C2POCNIN5530XROFSEIN5431MNT3CLOK5332MNT1XLAT5251DATAFOK159565755541MR41R40220K+C27100u10R391068PC26R381KC23 0.01C25 0.01C24 2200P1.5KR36R37 10KR2 68KR1 68KR3 68KR4 68KFCS-TRK-TRK+FCS+PD-VPDLDGNDF

45、CBADEVCCVCRFFE1FE2VCTE2TE1S.S 643251123457678910111213141516666564213262512FOKTAM2511CC2FSET2610CC1TG2279CBTGU288CPSRCH297RFIFE-306RFOFEO315RF-FLB324LDFGD333PHDFDFCT342PHD1FEI3513TAOVC4814SL+TDFCT4715SL-TZC4616SLOATSC4517ISETTEI4418VCCLPFI4319CLKTEO4220XLTVEE4121DATAEI4022XRSTE3923C.OUTF3824SENSFE.B

46、IAS3736FEOPHD21OUTINGND()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(CD-206/DPF-6010E(K) 4P( 98.4.24 10:03 PM y W 3CD-206/DPF-R6010

47、/DPF-R6010E(X32- ) (B/6)(X32- ) (D/6)IC24(X32- ) (C/6)IC8XXD27: SIR-33ST3: T95-0145-05PH2PH1(L.P.F.)OPE AMPPROTECTORICE13MUTEWH2IC19DPF-R6010 (X32-333X-XX)CD-206 (X32-3330-13)DPF-R6010E (X32-3330-13)8/16 bit SW21OUTAUDIOLchRchP1D11D12OUTOPTOUTSYNCS1BUFFERCOAXQ24: 2SA1175(F,E) or 2SA933AS(Q,R): TC74H

48、C373AFIC5LED CURRENTBUFFERQ8Q9Q6Q7Q5D10E2WH5E8S3CN10P2WH1Q20D22D28D29D23Q21D24AVR+9.5VIC21(2/2)LchOPEAMPIC21(1/2)RchQ27J1J2D14D13Q28E1CN6 E3OUTCOAX-40VAVRPROTECTORIC: 2SB1370 or 2SB1375: 2SC2878(B): DTC124ESA or UN4212Q5-9: DTC113ZSA or UN4219D1-14,19,20D27D22,23,28-30D21D31: S5688B or 1SR139-400: D

49、3SBA20F03 or RBV-402LFA: ERA081-004: 1SS131 or HSS104: UZ-15BSB or MTZJ15(B)D25,26D24: UZ-20BS or MTZJ20(B): UZ-10BS or MTZJ10(B): CXA1782BQ 1IC1: CXD2507AQ 1IC2: uPD78055GC-A03IC3: W24257S-70LLIC4: LC89170MIC6: KAN03IC7: ICP-N25IC8: NJM4565MIC19,20: NJM4580EIC21: BA5936SIC22: PST993D-TIC23: ICP-N10

50、IC24HEAD PHONESJ4E4Q3,4,13,14Q2,22Q1,23: DTA124ESA or UN4112: 2SA954(L,K) or 2SC1740S(Q,R): 2SC1740S(Q,R) or 2SC2785(F,E)Q17,18,25-28Q10,11,15,16Q20,21Q19: 2SD2061 D21(2/2)IC20(1/2)IC19(2/2)(1/2)IC20MUTECONTROLAUDIO MUTEQ26Q25Q17Q18Q15Q13Q16Q14Q23Q24A1J3CN7D25D26Q22A+B+B22R195R1612143658710911111098