HarmanKardon-HK3370-rec-sm1维修电路原理图.pdf

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HarmanKardon-HK3370-rec-sm1维修电路原理图.pdf

The Harman KardonModel HK 3370 / HK 3470 Manual ASTEREO RECEIVERCONTENTSTECHNICAL SPECIFICATIONS.3ALIGNMENT PROCEDURES 5CIRCUIT DESCRIPTION.8BLOCK DIAGRAM.16DISASSEMBLY PROCEDURES.17EXPLODED VIEW.19PRINCIPAL SCREW LOCATION.21PARTS LIST.27IC BLOCK DIAGRAM.63PRINTED CIRCUIT BOARDS.71SCHEMATIC DIAGRAMS .77WIRING DIAGRAM82PACKING MATERIAL83 harman/kardonParts and Service Office80 Crossways Park West, Woodbury, N.Y. 11797 Printed in KoreaPowerPhonesMuteSpeaker 1Speaker 2FMAMFM ModeVolumeBassMinMaxTrebleBalancePhonoT- MonTapeCDAuxDimmerSleepPresetTuningPreset ScanMinMaxLRRadioFans.CN 收音机爱好者资料库F RONT AMP SECTIONContinuous Power Output(STEREO MODE), Input: CDTHD: 0.08%, 8ohmsBoth Channel Driven (20Hz - 20KHz)(STEREO MODE)THD: 0.2%, 4ohms, Input: CDBoth Channel Driven (20Hz - 20KHz)THD at 65W, 8ohms, Input: CD2 0 H z1 K H z2 0 K H zIM Distortion at 50W, 8ohms,Input Sensitivity for Rated Power OutputTape Monitor/CD/AUX/TAPE2P h o n oS/N Ratio Input Shorted at 1KHz 70W Output ( WTD IHF-A)C DTone ControlBass: 100HzTreble: Frequency Response at -3dBMode: Stereo, Ref: 1KHz, 10Hz-120KHz 15Hz-100KHzChannel Crosstalk Input Shorted by 1Kohms1 0 0 H z1 K H z1 0 K H zN o m i n a l7 0 W9 5 W0 . 0 5 %0 . 0 5 %0 . 0 5 %0 . 0 5 %( 7 0 W )2 0 0 m V2 . 5 m V1 0 0 d B+ 1 0 d B- 1 0 d B+ 1 0 d B- 1 0 d B7 0 d B7 0 d B5 0 d BL i m i t6 5 W9 0 W0 . 0 8 %0 . 0 8 %0 . 0 8 %0 . 0 8 %1 5 0 - 2 5 0 m V2 . 2 - 2 . 8 m V9 5 d B+ 1 02 d B- 1 02 d B+ 1 02 d B- 1 02 d B6 0 d B6 0 d B4 2 d BG E N E R A LPower ConsumptionAt Rated Power All Channel DrivenIdling at Minimum Volume ControlPower SuppliesDimensions (WHD )i n c h e sm mWeight (lbs/kgs)4 3 6 W7 2 WAC 120V, 60Hz1 7 . 46 . 11 6 . 34 4 21 5 64 1 52 4 . 6 / 1 1 . 2FM SECTIONTuning Cover Range: 100KHz StepMono Usable Sensitivity (75ohms Input,98MHz)Image Rejection (at 98MHz)IF Rejection (at 98MHz)50dB Quieting SEnsitivity (at 98MHz, 100% MOD.)IHF Band Pass FilterS t e r e oDistortion (1KHz, 100% MOD. at 98MHz, 65dbf Input)IHF Band Pass FilterM o n oS/N Ratio (500 Input, 100% MOD. at 98MHz)IHF Band Pass FilterS t e r e oFrequency Response (-3dB)De-Emphases: 75AM suppression at 98MHzMuting threshold (at 98MHz)Overload Distortion at 98MHzCapture Ratio at 65dbfStereo Separation (at 98MHz, 100% MOD.,500 I n p u t )IHF Band Pass Filter1 K H zTape out Level (at 98MHz)N o m i n a l87.50 - 108.00MHz1 2 . 2 d b f4 0 d B8 0 d B4 1 . 2 d b f0 . 3 %6 5 d B20Hz - 15KHz5 2 d B3 5 . 2 d b f0 . 3 %1 . 5 d B4 0 d B5 0 m VL i m i t1 7 . 3 d b f3 5 W7 0 W4 7 . 3 d b f0 . 5 %6 0 d B40Hz - 14KHz4 7 d B31.2 - 39.2dbf 1 %2 . 5 d B3 0 d B350 - 650mVAM SECTIONTuning Cover Range: 10KHz StepUsable Sensitivity 9 9 9 / 9 9 0 K H zImage Rejection (at 999KHz)AGC Figure of Merit (From 100mV/m at 999/1000KHz)Distortion (999/1000Hz, 30% MOD. 50mV/m Input)Frequency Response (999/1000KHz) at -6dBSelectivity (at 999/1000Hz)9KHz / 10KHzS/N Ratio (999/k1000KHz, WithAntenna Input 50mV/m)Overload Distortion at 98MHzTape out Level at 999/1000KH (5mV/m Input)N o m i n a l520 - 1710MHz5 0 0/ m3 5 d B5 5 d B1 . 0 %80Hz - 2.3KHz2 5 d B4 0 d B1 %L i m i t1 0 0 0/ m3 0 d B5 0 d B1 . 5 %100Hz - 2KHz2 0 d B3 5 d B1 . 5 % HK337031. Technical SpecificationF RONT AMP SECTIONContinuous Power Output(STEREO MODE), Input: CDTHD: 0.08%, 8ohmsBoth Channel Driven (20Hz - 20KHz)(STEREO MODE)THD: 0.2%, 4ohms, Input: CDBoth Channel Driven (20Hz - 20KHz)THD at 65W, 8ohms, Input: CD2 0 H z1 K H z2 0 K H zIM Distortion at 75W, 8ohms,Input Sensitivity for Rated Power OutputTape Monitor/CD/AUX/TAPE2P h o n oS/N Ratio Input Shorted at 1KHz 100W Output ( WTD IHF-A)C DTone ControlBass: 100HzTreble: Frequency Response at -3dBMode: Stereo, Ref: 1KHz, 10Hz-120KHz 15Hz-100KHzChannel Crosstalk Input Shorted by 1Kohms1 0 0 H z1 K H z1 0 K H zN o m i n a l1 0 0 W1 3 0 W0 . 0 5 %0 . 0 5 %0 . 0 5 %0 . 0 5 %( 1 0 0 W )2 0 0 m V2 . 5 m V1 0 0 d B+ 1 0 d B- 1 0 d B+ 1 0 d B- 1 0 d B7 0 d B7 0 d B5 0 d BL i m i t8 5 W1 2 0 W0 . 0 8 %0 . 0 8 %0 . 0 8 %0 . 0 8 %1 5 0 - 2 5 0 m V2 . 2 - 2 . 8 m V9 5 d B+ 1 02 d B- 1 02 d B+ 1 02 d B- 1 02 d B6 0 d B6 0 d B4 2 d BG E N E R A LPower ConsumptionAt Rated Power All Channel DrivenIdling at Minimum Volume ControlPower SuppliesDimensions (WHD )i n c h e sm mWeight (lbs/kgs)5 7 5 W7 2 WAC 120V, 60Hz1 7 . 46 . 11 6 . 34 4 21 5 64 1 52 4 . 6 / 1 1 . 2FM SECTIONTuning Cover Range: 100KHz StepMono Usable Sensitivity (75ohms Input,98MHz)Image Rejection (at 98MHz)IF Rejection (at 98MHz)50dB Quieting SEnsitivity (at 98MHz, 100% MOD.)IHF Band Pass FilterS t e r e oDistortion (1KHz, 100% MOD. at 98MHz, 65dbf Input)IHF Band Pass FilterM o n oS/N Ratio (500 Input, 100% MOD. at 98MHz)IHF Band Pass FilterS t e r e oFrequency Response (-3dB)De-Emphases: 75AM suppression at 98MHzMuting threshold (at 98MHz)Overload Distortion at 98MHzCapture Ratio at 65dbfStereo Separation (at 98MHz, 100% MOD.,500 I n p u t )IHF Band Pass Filter1 K H zTape out Level (at 98MHz)N o m i n a l87.50 - 108.00MHz1 2 . 2 d b f4 0 d B8 0 d B4 1 . 2 d b f0 . 3 %6 5 d B20Hz - 15KHz5 2 d B3 5 . 2 d b f0 . 3 %1 . 5 d B4 0 d B5 0 m VL i m i t1 7 . 3 d b f3 5 W7 0 W4 7 . 3 d b f0 . 5 %6 0 d B40Hz - 14KHz4 7 d B31.2 - 39.2dbf 1 %2 . 5 d B3 0 d B350 - 650mVAM SECTIONTuning Cover Range: 10KHz StepUsable Sensitivity 9 9 9 / 9 9 0 K H zImage Rejection (at 999KHz)AGC Figure of Merit (From 100mV/m at 999/1000KHz)Distortion (999/1000Hz, 30% MOD. 50mV/m Input)Frequency Response (999/1000KHz) at -6dBSelectivity (at 999/1000Hz)9KHz / 10KHzS/N Ratio (999/k1000KHz, WithAntenna Input 50mV/m)Overload Distortion at 98MHzTape out Level at 999/1000KH (5mV/m Input)N o m i n a l520 - 1710MHz5 0 0/ m3 5 d B5 5 d B1 . 0 %80Hz - 2.3KHz2 5 d B4 0 d B1 %L i m i t1 0 0 0/ m3 0 d B5 0 d B1 . 5 %100Hz - 2KHz2 0 d B3 5 d B1 . 5 % HK347041. Test Equipment Required.?AM Standard Signal Generator (AM SSG) ?Audio Generator?Oscilloscope ?Distortion Meter?AC Voltmeter ?DC Voltmeter?FM Standard Signal Generator (FM SSG) ?Frequency Counter?Stereo ModulatorNote: Disconnect external FM antenna prior to alignment2. Alignment and Test Points3. AM IF and RF AlingmentPreparation1. Output of signal Generator should not be higher than necessary to obtain an optimum output reading.2. Signal Generator Modulation: 30%3. Switch: Press to AM.? ? ? ? !?#? ? ? ?$?$?%?&?(?)*?+? !?#? ? ? ?$?$?%?&?(?)*? !?#? ? ? ?$?$?%?&?(?)*? !?,-?./?0?1?2%?1? ? ? ?.?.?3?/?4?5 ?)? ?)?6?7?8?$?339?&#?/#?6?:?;?: HK3370 / HK34706 5. MPX Alignment, SM AlignmentPreparation1. Switch: Press to FM2. Tuner for 98MHz on band.3. Signal Generator output level: 1000V? ? ?5. !? ?#?$?$?%&?$? ?%&?(? !#$ !#$ !#$ !#$%?%?%?%?&?&?&?&? ? ? ?+?/?.?)8? ?4$?$?%&?(?)*?:?4?)8? ?$?(#.?:?#?:?#?#?/#? ? ? ?+?/?.?)8? ?-$?$?%&?(?)*?:?4?)8? ?4?$? !.8?#?.?7? ? ? ?+?/?.?)8? ?4$?$?%&?(?)*?:?-?)8? ?4?3?.?3?/?5:?0?#?)?#? ? ? !? ?3?/.? ?)?/?7?8?3?/?(#.?4?# ?0?#? ? !.?:?8?.?/.? ?2?.? HK3370 / HK34707 3. Circuit DescriptionCPU(IC401) :uPD780204GF1. Pin Configuration HK3370 / HK34708 2. Pin DescriptionPin No.Pin NameI/OACTIVEPORT NAMEREMARK1Vdd-H+5VSystem power supply2P37IHKR4Key read 43P36IHKR3Key read 34P35IHKR2Key read 25P34IHKR1Key read 16P33-Not used7P32-Not used8P31OH/LPWR_LED(RED)L:AMBER L:GREEN H:RED9P30OH/LPWR_LED(GRN)L:STBY H:OPER L:PROT10RESETILSystem resetLow reset11X2-OSCMain system osc.12X1I-OSC-13Vpp-Conneced to Vss14XT2-Not used15P04/XT1IH/LOPT_RDSRds on/off16Vdd-H+5VSystem power supply17P27-Not used18P26-Not used19P25ILPWR DOWNDetect power off20P24OHPWR_RLYPower Relay on/off21P23OHVR_UPVolume up22P22OHVR_DOWNVolume Down23P21ILPROTECTDetect protection24P20OHPWR_MUTEPower Mute25AVss-LGNDAnalog ground26P17OHPRE_MUTEPre mute27P16OHTUNER_MUTETuner mute28P15IH/LIF_INIF conter in29P15OHPLL CE30P13OHPLL CLOCK31P12OH/LPLL DATA32P11ILTUNEDTuned in on : L33P10ILSTEREOStereo in on : L34Avdd-H+5VAnalog power supply35Avref-LGND36P03-Not used37INTP2ILRDS CLKRds clock in38P01IHRDS DATA Rds data in39P00ILREMOCON INRemocon data in40Vss-LGNDGround41P74OH/L78211 CLK42P73OH/L78211 CE43P72-Not used44P71-Not used45P70-Not used46 Vdd - H +5VuPD780204GF QFP Type HK3370 / HK34709 Pin No.Pin NameI/OACTIVEPORT NAMEREMARK47P127-Not used48P127-Not used49P125-Not used50P124OH/L78211 DATA51P123-Not used52P122-Not used53P121-Not used54P120-Not used55P117OHVMAXVMAx on/off56P116OHSPK1_RLYSpeaker1 relay on/off57P115OHSPK2_RLYSpeaker2 relay on/off58P114OHSPK1_LEDSpeaker1 led on/off59P113OHSPK2_LEDSpeaker2 led on/off60P112OHSPK12_LEDSpeaker1/2 led on/off61P111-62P110-63P107OHVR_LEDVolume led on/off64P106IH/LOPT_STEPL:E.U. , H:USA65P105IH/LOPT_3400/3700L:3400, H:337066FIP33OHS18FIP segment output67FIP32OHS17FIP segment output68FIP31OHS16FIP segment output69FIP30OHS15FIP segment output70FIP29OHS14FIP segment output71FIP28OHS13FIP segment output72FIP27OHS12FIP segment output73FIP26OHS11FIP segment output74FIP25OHS10FIP segment output75FIP24OHS9FIP segment output76FIP23OHS8FIP segment output77FIP22OHS7FIP segment output78FIP21OHS6FIP segment output79Vload-VloadFIP DRIVER VOLTAGE80FIP20OHS5FIP segment output81FIP19OHS4FIP segment output82FIP18OHS3FIP segment output83FIP17OHS2FIP segment output84FIP16OHS1FIP segment output85FIP15OHG16FIP grid output86FIP14OHG15FIP grid output87FIP13OHG14FIP grid output88FIP12OHG13FIP grid output89FIP11OHG12FIP grid output90FIP10OHG11FIP grid output91FIP9OHG10FIP grid output92FIP8OHG9FIP grid output93FIP7OHG8FIP grid output94FIP6OHG7FIP grid output95FIP5OHG6FIP grid output HK3370 / HK347010Pin No.Pin NameI/OACTIVEPORT NAMEREMARK96FIP4OHG5FIP grid output97FIP3OHG4FIP grid output98FIP3OHG3FIP grid output99FIP1OHG2FIP grid output100FIP0OHG1FIP grid output123456PLL MODE 1PLL MODE 2PLL MODE 3PLL MODE 2PLL MODE 3PLL MODE 1?562314?A dotted line (.) : In case that IF COUNT is not proper, follow PLL MODE of56 When changing BAND, selecting the PRESET STATION using TEN KEY and selecting the PRESET STATION using PRESET CHANNEL UP/DOWNWhen IF COUNT is not proper in case that the frequency is not tuned?1231456?43. Timing Chart (IF Count) HK3370 / HK347011?111111?MANUAL TUNING UP/DOWN?MANUAL TUNING UP/DOWN KEY OFF?1231456? HK3370 / HK347012?1231456?123131?12231456?- AUTO TUNING UP/DOWN- POWER ON HK3370 / HK3470134. Pheriperal IC Operation1) FUNCTION IC. : LC7821-1/3? HK3370 / HK34701442) PLL IC. (LC7218)?2) MODE 2 : FREQUENCY OUT/ OUTPUT CONTROL3) MODE 3 : IF COUNT READ?1) MODE 1 : FREQUENCY OUT/ TUNED CHECK? HK3370 / HK3470154. BLOCK DIAGRAMHK3370 / HK347016 CHASSIS-TOP(44) REMOVAL. Remove 9 screws(A,K) and then remove the Chassis-top(44). FRONT PANEL ASSY(AA) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step . 2. Disconnect the connector(CN 301, Card-cable) on the Front P. C. Board(d) from connector(CN 115) on the Main P. C. Board (i). 3. Disconnect the lead wire(CW 302, 5P) on the Front P. C. Board(d) from connector(CN 702) on the Volume Volume P. C. Board (b). 4. Disconnect the connector(CN 801, 2P) on the Standby P. C. Board(g) from connector(CN 102) on the Main P. C. Board (i). 5. Remove 1 screw(I) of Chassis-panel(37) and then lead wire(H 801, 1P) on the Phones P. C. Board(e). 6. Disconnect the lead wire(CW 301, 7p) on the Front P. C. Board(d) from connector(CN 113) on the Main P. C. Board(i). 7. Disconnect the lead wire(CW 801, 3P) on the Phones P. C. Board(e) from connector(CN 401) on the Amp P. C. Board(h). 8. Remove 1 screw(I) of Chassis-panel(37) and then lead wire(H 501, 1P) on the Tone P. C. Board (c). 9. Disconnect the lead wire(CW 701, 10P) on the Volume P. C. Board(b) from connector (CN 109) on the Main P. C. Board(i). 10. Remove 9 screws(H, I) and then remove the Front Panel ASSY(AA). FRONT P. C. BOARD(d) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Disconnect the lead wire(CW 302, 5P) from connector(CN 702) on the Volume P. C. Board(b). 4. Disconnect the connector(CN 302) from lead wire(CW 801,5P) on the Power P.C.Board (f). 5. Remove 15 screws(J) and then remove the Front P.C.Board(d). VOLUME P.C.BOARD(b) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Disconnect the connector(CN 702) from lead wire(CW 302, 5P) on the Front P. C. Board(d). 4. Disconnect the connector(CN 703) from lead wire(CW 802, 2P) on the Volume2 P. C. Board(a). 5. Disconnect the connector(CN 701) from lead wire(CW 501, 10P) on the Tone P. C. Board(c). 6. Disconnect the lead wire(CW 701,10P) from connector(CN 109) on the Main P. C. Board(i). 7. Full out the Volume Knob(1). 8. Remove 1 hexagon nut(3), 1 washer(4) and then remove the Volume P. C. Board(b). VOLUME2 P. C. BOARD(a) ASSY(AD) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Disconnect the lead wire(CW 802, 2P) from connector(CN 703) on the Volume P.C.Board(b). 4. Full out the Volume Knob(1). VOLUME2 P. C. BOARD(a) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Remove the Volume P. C. Board(b) ASSY(AD), referring to the previous step. 4. Full out the Volume2 P. C. Board(a). TONE P. C. BOARD(c) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Disconnect the lead wire(CW 501, 10P) from connector(CN 701) on the Volume P. C. Board(b). 4. Pull out the Balance-knob(5). 5. Remove 4 screws(J) and then remove the Tone P. C. Board ASSY(AC). 6. Remove 4 hexagon nut(3) and then remove the Shield-balance(12).5. DISASSEMBLY PROCEDURES HK3370/HK347017 PHONES P. C. BOARD(e) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Disconnect the lead wire(CW 801, 3P) from connector(CN 401) on the Amp P. C. Board(h). 4. Remove 2 screws(E) and then remove the Phones P. C. Board(e). POWER P. C. BOARD(f) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Disconnect the lead wire(CW 801, 5P) from connector(CN 302) on the Front P. C. Board(d). 4. Remove 2 screws(J) and then remove the Power P. C. Board(f). STANDBY P. C. BOARD(g) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove the Front-panel ASSY(AA), referring to the previous step. 3. Remove 2 screws(J) and then remove the Standby P. C. Board(g). TUNER P. C. BOARD(j) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Remove 21 screws(G,K) and then remove the Chassis-back(41). 3. Pull out the Tuner P. C. Board(j). RADIATOR ASSY(AB) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step. 2. Disconnect the connector(CN 401) from lead wire(CW 801, 3P) on the Phones P. C. Board(e). 3. Disconnect the lead wire(CW 403, 4P) from connector(CN 111, CN 112) on the Main P. C. Board(i). 4. Disconnect the lead wi

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