McIntosh-C2500-pre-sm(2) 维修电路原理图.pdf

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1、C2500SERVICE MANUALPerformance Specifications .2Notes .3Rear Panel .4Section Location .4Block Diagram .5 - 6Interconnection Diagram .7 - 8Display Schematic and PCB.9 - 18Control Schematic and PCB .19 - 30Audio Schematic and PCB .31 - 42Balanced I/O Schematic and PCB .43 - 46Digital Audio Schematic a

2、nd PCB .47 - 54Backup PS Schematic and PCB .55 - 58Power Schematic and PCB .59 - 62Tube Schematic and PCB .63 - 70Audio Expansion Schematic and PCB .71 - 74Meter Light Schematic and PCB .75 - 76Parts List .77 - 92Repacking Instruction .93CONTENTSTUBE PREAMPLIFIERSERIAL NO. ADF1001 And AboveC2500PREL

3、IMINARYRadioFans.CN 收音机爱 好者资料库PERFORMANCE SPECIFICATIONS2SpecificationsFrequency Response+0, -0.5dB from 20Hz to 20,000Hz+0, -3dB from 10Hz to 100,000HzTotal Harmonic Distortion0.08% from 20Hz to 20,000HzRated Output (Main)2.5V Unbalanced, 5V BalancedMaximum Output8V RMS Unbalanced, 16V RMS Balanced

4、Sensitivity (for rated output)High Level, 450mV unbalanced, 900mV balancedPhono MM, 4.5mVPhono MC, 0.45mVSignal To Noise Ratio (A-Weighted)High Level, 100dB below rated outputPhono MM, 75dB below 5mV inputPhono MC, 75dB below 0.5mV inputInput ImpedanceHigh Level, 22K ohms unbalanced, 44k ohms balanc

5、edPhono MM, 47K ohms; 50 to 750pF, in 50pF stepsPhono MC, 25, 50, 100, 200, 400 or 1,000 ohms;100pFMaximum Input SignalHigh Level, 8V Unbalanced, 16V BalancedPhono MM, 80mVPhono MC, 8mVVoltage GainHigh Level to Record Output: 0dBHigh Level to Main Output: 15dBPhono MM to Record Output: 40dBPhono MC

6、to Record Output: 60dBOutput Impedance220 ohmsHeadphone Impedance20 ohms to 600 ohmsDigital Input Sample RatesOptical: 16Bit, 24Bit - 32kHz to 96kHzCoaxial: 16Bit, 24Bit - 32kHz to 96kHzUSB: 16Bit, 24Bit, 32Bit - 32kHz to 192kHzPower Control and Trigger Output12VDC, 25mAPower RequirementsField AC Vo

7、ltage conversion of the C2500 is not possible.The C2500 is factory configured for one of the following AC Voltages:100 Volts, 50/60Hz at 50 watts110 Volts, 50/60Hz at 50 watts120 Volts, 50/60Hz at 50 watts220 Volts, 50/60Hz at 50 watts230 Volts, 50/60Hz at 50 watts240 Volts, 50/60Hz at 50 wattsStand

8、by Power, less than 0.5 wattsNote: Refer to the rear panel of the C2500 for the correct voltage.Overall DimensionsWidth is 17-1/2 inches (44.45cm)Height is 7-5/8 inches (19.37cm) including feetDepth is 18 inches (45.72cm) including the Front Panel, Knobs and CablesWeight30.5 pounds (13.8 kg) net, 46

9、 pounds (20.9 kg) in shippingcartonShipping Carton DimensionsWidth is 27 inches (68.6cm)Height is 14 inches (35.6cm)Depth is 25 inches (63.5cm)NOTESRadioFans.CN 收音机爱 好者资料库C25003REAR PANEL4SECTION LOCATIONSTOP VIEW WITH COVER REMOVEDBOTTOM VIEW WITH COVER REMOVED2DISPLAYPCB3CONTROL PCB6DIGITALAUDIOPC

10、B7BACKUP PSPCB8POWERPCB4AUDIOPCBTUBEPCB9AUDIOEXPANSION PCB10BALANCED I/OPCB5METERLIGHTPCB11TUBE PREAMPLIFIERC2500BLOCK DIAGRAM5678INTERCONNECT10TUBE18J5J6J4J1J2J7J23J24J26CA24CA25CA18J46J41J20J16J1J1CA26J4CA27V1L1J22CA12CA28CA17TUBE PREAMPLIFIERC25009102 DISPLAY 751456 SCH 1 OF 4GND (Pin 1)5V (Pin 2

11、)SI/SO (Pin 3)STB (Pin 4)SCK (Pin 6).01FC207.01FC206DGNDDGNDVFD-GNDINPUT_BINPUT_A22.1R1147FC1IR SENSOR213VccVoutGNDMT1.1FC21KR453.3V22.1KR2922.1KR3022.1KR2822.1KR343.3V BUJ9:18J9:15J9:12J9:16J9:17J9:13J9:10J9:11J9:14J9:9J9:6J9:3J9:4J9:5J9:7J9:1J9:8J9:2INPUT_AINPUT_BLEFT PB ADVFD 5VVFD SCLVFD SDAVFD

12、CEVFD CEFRONT_IRI2C_SCLI2C_SDAVFD 5VVFD SDAVFD SCL.1FC6DGND3.3V.1FC7DGND3.3V3.3V BUBYPASSPROCDS23DS24DS18STANDBY/ONMH2ADC-VREF-L3.3VVFD 5VTRIMDS17750932 = 058195 + 9 pin conn (117986)4213VccGND5U44213VccGND5U5SELECTORINPUT5VGND6B1C4A5GND7S1146261ILLUMINATIONFRONT PANELDS6DS4312Q1150R14150R19DS22.21K

13、R16150R15PANEL_LAMPQ37VSS8Q15A12A23Q49Q510Q712SDA15SCL14Q26A01Q04Q611VDD16NC13U3022.1KR20222.1KR20122.1KR21022.1KR2093.3V BU22.1R21122.1R21222.1KR20322.1KR2041KR2201KR2131KR2141KR2161KR218Address=3.1FC80OFFONOFFONOFFONOFFON3.3V BUI2C_SDAI2C_SCL5VDS7150R2DS8150R1DS9OUT1DS10OUT23.3V3.3V3.3V3.3V3.3VPAN

14、EL_LAMP3.3V BU.1FC6642135VccGNDU2547FC18.1FC1910HL147FC23VOL-BVOL-AOFFON22.1R6922.1R70SDA (SI/SO)CE (STB)SCL (SCK)J1:2J1:7J1:1J1:5J1:4J1:6J1:9J1:3J1:8Daughter PCBJ12:12J12:11J12:10J12:9J12:8J12:7J12:6J12:5J12:4J12:3J12:2J12:1J11:12J11:11J11:10J11:9J11:8J11:7J11:6J11:5J11:4J11:3J11:2J11:1BA1794612Gro

15、undJ13:4MH1052139 (146260)J13:3J13:2J13:1CONTROLVOLUMEMH12MH9METER LEDs ONMETER MUTE.1FC83.3V4213VccGND5U63.3V BU.1FC942135VccGNDU722.1R8J7:1J7:2J7:3J7:4J7:5J7:6J7:7J7:8J7:9J7:10J7:11J7:123.3V BUVOL-BON/RESET5V5VADC-VREF-RRIGHT PB ADVOL-A3.3VFRONT_IRSP1-15V15VTo Control PCB33333333333333333333333333

16、3333231J17J16:1J16:2J16:5.1FC119MP2MP1GP1J16:4TipRingGNDCable 173167, 1-1 Pinout.Headphone daughter PCB2X20 VFD ASSYLeft PBRight PBVolumeLogoInputDS111122 DISPLAY 751456 SCH 2 OF 40V0V0V0V0V.3V-.5V-3.7V0V0V1110V0V0V.3V-.5V10V0VLEFT-3.7VLEFT-3.7V-3.7V1KR115LEFTMETER DRIVERLEFT METERRIGHT -RIGHT +LEFT

17、 -J22:2RIGHTLEFT47FC5RIGHT.1FC641KR9447FC65D14220FC69D6D7D11RIGHTD10D9D13D12312Q39METER DRIVER1KR114LEFTJ23:1J23:2LEFT +J22:147R95D8312Q402.21MR1102.21MR111312Q44312Q43312Q45312Q46RIGHT METERMETER BUFFERLEFT METERLOG CONVERTERMETER BUFFERMETER RECTIFIER.1FC71RIGHT METERMETERSON/OFF CONTROLD5100KR99L

18、OG CONVERTER1KR9723184B+B-U10:1.1FC67.1FC68657U11:2D3100KR981KR96.47FC72.1FC73150KR10522.1KR101.47FC70221R108METER RECTIFIER150KR10322.1KR100METERSON/OFF CONTROLD4657U12:2D2657U10:2221R109312Q4223184B+B-U12:1312Q4123184B+B-U11:110KR11610KR117-5V10V10V-5V-5V10V10V-5V2.21R11315KR38D302.21R11215KR371KR

19、2491KR250.01FC170.01FC169221KR251221KR25210V-5VR76R77(806 ohm)(806 ohm)J4:1J4:2J4:3J4:4R-METERL-METERTO AUDIO PCBCABLE 173081, PIN1-1GNDGNDL METERR METERR-METERL-METERJ41:1J41:2J41:3J41:4METER MUTE100KR3100KR415V-15V15V-15V5k132CCWR1065k132CCWR10710101010OPENR400TUBE PREAMPLIFIERC250013142 DISPLAY 7

20、51456 SCH 3 OF 45V5V5V12L12L12L12R12R12R5V12L12RTO LEFT METER LIGHTBLU312Q2GRNMETER ILLUMINATION2.21KR711k132CCWR74500132CCWR731k132CCWR72500132CCWR75J14:4J15:4J15:2J14:7J14:11J14:1J15:11J15:7J14:6J14:12J15:1J14:9J14:8J15:12J14:2J14:512R5V5V12RJ15:5J15:6J15:8J15:95V5VTO RIGHT METER LIGHTDRIVERGRNGRN

21、5V5VBLUBLUBLUBLUBLUGRNGRNGRNMETER LEDs ON12R12R12R12R12L12L12L12L12L12L15162 DISPLAY 751456 SCH 4 OF 4MUTEOUT1OUT2Standby/On/ResetButton Common321+-84B+B-U1:1567+-U1:2312Q510KR5822.1KR51ON Button +100R12ON/RESETLEFT PB ADThis Transister buffers the Standby button for the A/D matrix10FC3.1FC4Vout LTV

22、out LTADC-VREF-L10KR5510KR4610KR53BYPASSPROCTRIMMH3Chassis h ole f or Sp ark Grou nd3.3V BULeft Pushbutton A/D BufferTo Right Pushbutton PCBTo Left Pushbutton PCBSPARK GND-L222222222J2:1J2:5J2:3J2:4J2:6J2:2J2:10J2:7J2:12J2:11J2:8J2:92221A1B2A2BSpark GroundSpark Ground4A3B24BSpark GroundSpark GroundB

23、utton CommonVout RTADC-VREF-R10KR5710KR1310KR4710KR7Chassis hole for Spark GroundSPARK GND-R222222222J3:1J3:5J3:3J3:4J3:6J3:2J3:10J3:7J3:12J3:11J3:8J3:92221A1B2A2BSpark GroundSpark Ground4A3B24BSpark GroundSpark GroundTo Push&Hold reset circuit on Control PCB.1A.1FC50MUTEOUT 1Right Pushbutton PCB222

24、22222S8S7S5S62J10:4J10:5J10:2J10:1J10:6J10:3 J10:11 J10:7J10:9J10:10J10:8 J10:122221A1B2A2BSpark GroundSpark GroundSG12SG11SG10SG94A3B24BSG14SG13SG16SG15OUT 2STANDBYSpark GroundSpark GroundPB SPARK GND-RAlso con nects to switch tab g round.This Ground connects to the Chassis.PROCLeft Pushbutton PCB2

25、2222222S4S3S22J6:4J6:5J6:2J6:1J6:6J6:3J6:11J6:7J6:9J6:10J6:8J6:122221A1B2A2BSpark GroundSpark GroundSG4SG34A3B24BSG6SG5SG8SG7TONE BYPASSTRIMSpark GroundSpark GroundPB SPARK GND-LAlso conn ects to switch tab g round.This Grou nd con nects to th e Ch assis.321+-84B+B-U3:1567+-U3:2RIGHT PB AD10FC58.1FC

26、57Vout RT3.3VRight Pushbutton A/D Buffer.1FC553.3V22.1R65D1SPARK GND-R22.1R64MH1015346210712118915346210712118915346210712118915346210712118922.1R6622.1R670V = Standby/On1.6V = Out22.2V = Out12.5V = Mute0V = Trim1.6V = Bypass2.2V = Proc3.3V = Open2.5V = Not used3.3V = OpenVout RT LevelsVout LT Level

27、sTUBE PREAMPLIFIERC250017182 DISPLAY 751456 PCB19203CONTROL 751457 SCH 1 of 5R1Active LowOutput10R61KR247.5KR41KR53.3V BU3.3V BUIR_REAR4213B+GND5U1.1UFC23.3V BU3.3V BU.1UFC10BRKT1DS1058174 RA HOLDER100R710uFC1IR SENSOR213VccVoutGNDMT1.1UFC33.3V BULVC-ANDD1D312L18DATA-IN10R146132J16:1D3312L19IR-IN465

28、J16:2D3412L2010R148132J17:1D35DGND12L21SUM10R149465J17:2D3612L22DVD10R150132J18:1D3712L23CD10R151465J18:2D3812L24AUX10R152132J19:1D3912L25SRVR10R153465J19:2D4012L26TUNER10R154132J20:1D4312L27CD210R155465J20:2D42DATA PORTSDATASRVR-ENABLETUNER-ENABLEAUX-ENABLEQ37VSS8Q15A12A23Q49Q510Q712SDA15SCL14Q26A0

29、1Q04Q611VDD16NC13U28I2C_SCLI2C_SDA3.3V BU22.1R15622.1R15722.1KR15922.1KR1583.3V BUDVD-ENABLECD2-ENABLECD-ENABLESUM-ENABLEAddress=0312Q6ALL_DATA22.1KR168AUX-ENABLE100R162SPARE312Q7ALL_DATA22.1KR169SRVR-ENABLE100R163312Q8ALL_DATA22.1KR170CD2-ENABLE100R164312Q9ALL_DATA22.1KR171DVD-ENABLE100R165312Q10AL

30、L_DATA22.1KR172TUNER-ENABLE100R166312Q11ALL_DATA22.1KR173CD-ENABLE100R167312Q5ALL_DATA22.1KR161SUM-ENABLE100R160.1UFC793.3V BUData Port EnabledDisabledData Port EnabledDisabledData Port EnabledDisabledData Port EnabledDisabledData Port EnabledDisabledData Port EnabledDisabledData Port EnabledDisable

31、dTIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVESUM100R191.1UFC83.1UFC8212L4012L35DATA OUT (TXD).1UFC8412L39.1UFC81RS232ControlJ25:6J25:1J25:8J25:7J25:9J25:3J25:2J25:5J25:4.1UFC853.3V BUSMDT2out8R2in9C2-6T2in11V+3R1in

32、14EN1GND16C1+2C1-4C2+5V-7R2out10T1in12R1out13T1out15Vcc17SD18U37RS232 Enable/RS232 Shutdown/D50D4912L3612L37J25:10J25:110R250Control OptionOPENR249EXT_TXDEXT_RXDRS232 ONRS232 ShutdownNot Used47.5KDATA IN (RXD)GNDTUBE PREAMPLIFIERC250021223CONTROL 751457 SCH 2 of 5T O DIS P L A Y PC BJ7-1J7-12RESET(1

33、.8V)0R104(1.8V)0R1030R1010R106(1.8V Out)(1.8V)1000pFC541.5KR9612pFC5012pFC51(1.8V)100R9810KR102Main Atmel Micro.1UFC48SW25V Tolerant I/Os.01uFC5318.432000MHz21Y1ADC-VREF+3V-Atmel+3V-Atmel+3V-Atmel+3V-Atmel+3V-AtmelI2C_SCLI2C_SDAEXT_RXDEXT_TXDNRSTFR_SDAPASS_INTCKTDITDOTMSVOL_AVOL_BUSB-USB+VDD-CORE-RV

34、DD-CORE-RVDD-CORE-RVDD-CORE-RVDD-CORE-RIR_CTLDAC_RXDDAC_TXDPA20/PGMD8/AD316PA19/PGMD7/AD213PA22/PGMD1014PA21/PGMD911VDDOUT8PA17/PGMD5/AD09AD76AD43AD54ADVREF1VDDPLL64XOUT61XIN/PGMCK62VDDFLASH59DDM56DDP57VDDCORE54TMS51PA3152TDO49TDI33PA4/PGMNCMD36PA5/PGMRDY35PA2838PA2941TST40PA343GND46VDDIO45PA0/PGMEN

35、048PA23/PGMD1115VDDIN7AD65VDDCORE12PA18/PGMD6/AD110GND2GND17PA15/PGMD320PA16/PGMD419PA13/PGMD122PA25/PGMD1325VDDCORE24PA12/PGMD027PA9/PGMM130PA10/PGMM229PA7/PGMNVALID32PA6/PGMNOE34PA27/PGMD1537NRST39PA3042PA2/PGMEN244PA1/PGMEN147PLLRC63VDDIO58TCK53GND60ERASE55JTAGSEL50VDDIO18PA24/PGMD1223PA11/PGMM32

36、8PA14/PGMD221PA26/PGMD1426PA8/PGMM031U3Factory - Diagnostics12L12.1UFC63.1UFC61.1UFC62.1UFC60.1UFC65+3V-Atmel3.3V BU256kbit MEMORY3.3V BUI2C_SCLI2C_SDA100R13810uFC68312Q410KR13647.5KR137475KR135D22MANUAL RESETNRSTON/RESET3.3V BUPin 1Pin 7Pin 18Pin 45 Pin 58/59WP7SCL6VCC8SDA5A12A23AO1GND4U2010R134ADC

37、-VREFIR_DATA_OUT22.1R11022.1R11122.1R11222.1R11522.1R11722.1R119INPUT_AFRONT_IR22.1R12122.1R13322.1R12922.1R13022.1R13122.1R12222.1R12322.1R12422.1R12522.1R12622.1R12722.1R12822.1R132INPUT_BSpare122.1R120OPENR118OPENR114OPENR11322.1R109OPENR99OPENR100IR_REAR22.1R10822.1R105Keep trace shortKeep trace

38、 shortLEFT PB ADRIGHT PB ADT O DIS P L A Y PC BSPI_SCLSPI_SDAVOL_CE22.1R97VF_CES pareS pareMISO3V to 5V VFD Translators.1UFC5922.1R10722.1R116.1UFC66.1UFC56ADC-VREFADC-VREF4.7uFC494.7uFC64ON-W AKEUPFR_SCLConnect pin 55 to 3.3V to Erase microInternal Pull-upPush and hold Front Panel Standby/On button

39、 for 5 Sec.SW13.3V BUPROG12453VCCGNDU25LVC,AND GATEUse 64 Pin Via footprint.13372412453VCCGNDU2613372412453VCCGNDU273.3V BU3.3V BU.1UFC67Low power wakeupPin 18Not Used1Not Used2ON-WAKEUPEXT_TXDEXT_RXDNRSTTCKTDITDOTMSJ4:13J4 :7J4:11J4 :2J4 :9J4 :5J4:10J4:12J4 :1J4 :3J4 :4NCNCNCNCNCNCNCNCJ4 :6J4 :8NCN

40、CNCUSB-USB+VOL_BVOL_AAC DETVF_CESPI_SDASPI_SCL4213B+GND5U5.1UFC54213B+GND5U44213B+GND5U23IR_DATA_OUTFRONT_IRIR_REAR12453VCCGNDU2212453VCCGNDU21ALL_DATAActive high output,to Data Drivers.1UFC43.3V BU3.3V BU3.3V BU12453VCCGNDU24IR_CTLNo DataData SignalNo DataData Signal3.3V BUData OutNo Data+3V-AtmelO

41、PENR22822.1R23122.1R23222.1R23322.1R23422.1R235SDAA3GND4SDAB6EN5VCC(A)1VCC(B)8SCLA2SCLB7U3 2J2 :1J2 :4J2 :7J2 :3J2 :2J2 :6J2 :9J2 :8J2 :5J2 :10J2 :13J2 :16J2 :15J2 :14J2 :12J2 :18J2 :11J2 :17INPUT_AINPUT_BLEFT PB ADVFD 5VVFD SCLVFD SDAVFD CE3.3VVFD 5VJ5 :12J5 :11J5 :10J5 :9J5 :8J5 :7J5 :6J5 :5J5 :4J

42、5 :3J5 :2J5 :13.3V BUON/RESET5V5VRIGHT PB AD3.3VFRONT_IRSP1-15V15VVFD CEVFD SCLVFD SDASpareI2C_SCLI2C_SDA0R2460R2473.3V BU3.3V BU5V3.3V BUSpareVOL_SCLVOL_SDAData OutConvertedNo DataLIGHT_CTL_INONLIGHTS OFFNetTie 1222222222222222222222222222222AUD DETTONE_CETONE_CEPlace near Micro23243CONTROL 751457

43、SCH 3 of 5DGND12L4MAIN10R10132J13:1D612L13PASS-THRU10R141465D28DGND12L14OUT 110R142132D2912L15OUT 210R143465D3012L16A10R144132D3112L17B10R145465J15:2D32POWER C ONTROL22.1R274.75KR25312Q1CONTROL2.21KR26.1UFC31312Q3312Q2POWERD44MAIN_PC-EN12V0V12V_PCMAINMAIN_PC22.1R1874.75KR181312Q19CONTROL2.21KR183.1U

44、FC75312Q15312Q17POWERD46OUT1_PC-EN12V0VOUT 1OUT1_PC22.1R1924.75KR189312Q23CONTROL2.21KR190.1UFC77312Q21312Q22POWERD48OUT2_PC-EN12V0VOUT 2OUT2_PC22.1R1804.75KR177312Q28CONTROL2.21KR178.1UFC7412V312Q12312Q13POWERD45TRIG1-PC-EN12V0VTRIGGER 1TRIG1_PC22.1R1884.75KR182312Q20CONTROL2.21KR184.1UFC7612V312Q1

45、6312Q18POWERD47TRIG2_PC-EN12V0VTRIGGER 2TRIG2_PCMAIN_PCOUT1_PCOUT2_PCTRIG1_PCTRIG2_PCPASS THRU IN221KR17DRIVER221KR18312Q30PASS_IN312Q1422.1KR179LIGHT_CTL0V22.1R215LIGHT_CTLMAIN_PC-ENTRIG2_PC-ENQ37VSS8Q15A12A23Q49Q510Q712SDA15SCL14Q26A01Q04Q611VDD16NC13U3022.1KR20822.1KR20622.1KR20522.1KR20222.1KR20

46、122.1KR21022.1KR209I2C_SCLI2C_SDA3.3V BU22.1R21122.1R21222.1KR20322.1KR204OUT1_PC-ENOUT2_PC-ENTRIG1-PC-EN22.1R21722.1R21922.1KR207Address=1.1UFC80MAIN_LIGHT_PC150R14OFFONONLIGHTS OFF312Q2922.1KR8LIGHT_CTL0VOUT1_LIGHT_PC150R15312Q3122.1KR222LIGHT_CTL0VOUT2_LIGHT_PC150R221312Q3222.1KR224LIGHT_CTL0VTR1

47、_LIGHT_PC150R223312Q3322.1KR226LIGHT_CTL0VTR2_LIGHT_PC150R225MAIN_LIGHT_PCOUT1_LIGHT_PCOUT2_LIGHT_PCTR1_LIGHT_PCTR2_LIGHT_PC12L212L3012L3112L3212L3312L343.3V BULIGHT CTL IN100KR198BUFFER100KR199312Q27LIGHT_CTL_INTIPRINGSLEEVELIGHTS OFFONOFFPASS-THRU ONSPARETIPRINGSLEEVETIPRINGSLEEVETIPRINGSLEEVETIPR

48、INGSLEEVETIPRINGSLEEVE(Input)12V_PC12V_PC12V_PC12V_PC4.75KR164.75KR34.75KR94.75KR114.75KR12(Micro provides pullup).1UFC443.3V BU4213B+GND5U173.3V BUBUFFERD5D7D8D9D10D11OFFONOFFONLIGHTS OFFONLIGHTS OFFONONLIGHTS OFFONLIGHTS OFFPASS-THRU ONOFFOFFONOFFONOFFONOFFONRS232 Enable/RS232 Shutdown/Not UsedRS2

49、32 ONRS232 Shutdown(Micro provides pullup)22.1KR25112V_PCMust also work when connectedto Darlinton driven output)J13:2J14:1J14:2J15:1TUBE PREAMPLIFIERC250025263CONTROL 751457 SCH 4 of 5Power_Relay133717, 1.25AOPENC35VFD 5V8V_UNREGVFD PS ONINON/OFFOUTGNDADJ_TAB162345U1347.5KR46INFO VFD PS133717, 1.25

50、A3.3V BU+VBUINON/OFFOUTGNDADJ_TAB162345U14100KR513.3V BACKUP PSAtmel microFront/Rear IR SensorsStandby LEDPower Control In440mA Max12L912L10133717, 1.25A8V_UNREGINON/OFFOUTGNDADJ_TAB162345U1047.5KR39133717, 1.25A8V_UNREGINON/OFFOUTGNDADJ_TAB162345U11100KR44133717, 1.25AC16.1UFC1550k internal pulldow