HarmanKardon-3470-rec-sm维修电路原理图.pdf

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1、The Harman Kardon Model HK 3370 / HK 3470 Manual A STEREO RECEIVER CONTENTS TECHNICAL SPECIFICATIONS.3 ALIGNMENT PROCEDURES 5 CIRCUIT DESCRIPTION.8 BLOCK DIAGRAM.16 DISASSEMBLY PROCEDURES.17 EXPLODED VIEW.19 PRINCIPAL SCREW LOCATION.21 PARTS LIST.27 IC BLOCK DIAGRAM.63 PRINTED CIRCUIT BOARDS.71 SCHE

2、MATIC DIAGRAMS .77 WIRING DIAGRAM82 PACKING MATERIAL83 harman/kardon Parts and Service Office 80 Crossways Park West, Woodbury, N.Y. 11797 Printed in Korea PowerPhones MuteSpeaker 1Speaker 2FMAMFM Mode Volume Bass MinMax TrebleBalance PhonoT- MonTapeCDAuxDimmerSleep PresetTuningPreset Scan MinMaxLR

3、www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 15 TROUBLESHOOTING GUIDE Troubleshooting Guide This unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. So, if you have a problem, first check this list for a possibl

4、e solution. If the problem persists, consult your authorized Harman Kardon Service Center. If the problem is.Make sure that the. No lights illuminate when POWER button is pressedUnit is plugged into a live outlet Main power switch is pressed in No sound is heardUnit has not been muted Correct input

5、function selector button has been pressed Volume is turned up The speakers have been turned on using the Speaker Selectors No output from one or more channelsCables are not defective: check/replace speaker cables Tuner sound has a large amount of interference, orThe antenna is properly connected The

6、 “Stereo” display is not illuminated, orThe antenna is properly located Tuner sound distorts and/or volume level is too lowThe antenna is set in the proper direction The antenna is adequate to receive the desired station Tuner is intermittent or continuously buzzing or hissingThe unit is away from f

7、luorescent lights,TVs, motors and other electrical appliances Technical Specifications Audio Section Stereo Mode Continuous Average Power (FTC) 70 Watts per channel, 20Hz20kHz 0.07% THD, both channels driven into 8 ohms 95 Watts per channel, 20Hz20kHz 80dB IF Rejection100dB Tuner Output Level1kHz, 1

8、00kHz Dev 500mV AM Tuner Section Frequency Range5201710kHz Signal-to-Noise Ratio40dB Usable SensitivityLoop 500V/M Distortion1kHz, 50% Mod 0.8% Selectivity10kHz, 25dB General Power RequirementAC 120V/60Hz Power Consumption72W idle, 332W maximum (both channels driven) Dimension (Max) Width17.4 inches

9、 (442mm) Height6.1 inches (156mm) Depth16.3 inches (415mm) Weight24.6 lb (11.2kg) Depth measurement includes knobs, buttons and terminal connections. Height measurement includes feet and chassis. All features and specifications are subject to change without notice. Harman Kardon is a registered trad

10、emark, and Power for the digital revolution is a trademark, of Harman Kardon, Inc. www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 hk3370 4 250 Crossways Park Drive,Woodbury, New York 11797 2000 Harman Kardon, Incorporated Part #YIAR-K1001-02A Technical Specificatio

11、ns Audio Section Stereo Mode Continuous Average Power (FTC) 100 Watts per channel, 20Hz20kHz 0.07% THD, both channels driven into 8 ohms 135 Watts per channel, 20Hz20kHz 80dB IF Rejection100dB Tuner Output Level1kHz, 100kHz Dev 500mV AM Tuner Section Frequency Range5201710kHz Signal-to-Noise Ratio40

12、dB Usable SensitivityLoop 500V/M Distortion1kHz, 50% Mod 0.8% Selectivity10kHz, 25dB General Power RequirementAC 120V/60Hz Power Consumption72W idle, 332W maximum (both channels driven) Dimension (Max) Width17.4 inches (442mm) Height6.1 inches (156mm) Depth16.3 inches (415mm) Weight26.8 lb (12.1kg)

13、Depth measurement includes knobs, buttons and terminal connections. Height measurement includes feet and chassis. All features and specifications are subject to change without notice. Harman Kardon is a registered trademark, and Power for the digital revolution is a trademark, of Harman Kardon, Inc.

14、 VMAx is a registered trademark of Harman International Industries, Inc., and is an implementation of Cooper Bauck Transaural Stereo under patent license. www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 5 1. Test Equipment Required. ?AM Standard Signal Generator (AM

15、 SSG) ?Audio Generator ?Oscilloscope ?Distortion Meter ?AC Voltmeter ?DC Voltmeter ?FM Standard Signal Generator (FM SSG) ?Frequency Counter ?Stereo Modulator Note: Disconnect external FM antenna prior to alignment 2. Alignment and Test Points 3. AM IF and RF Alingment Preparation 1. Output of signa

16、l Generator should not be higher than necessary to obtain an optimum output reading. 2. Signal Generator Modulation: 30% 3. Switch: Press to AM. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? !?#? ? ? ? ? $? ?$?%?: www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 5. MPX Alignme

17、nt, SM Alignment Preparation 1. Switch: Press to FM 2. Tuner for 98MHz on band. 3. Signal Generator output level: 1000V ? ? ? 5. !? ?#?$?$?%&?$? ?%&?(? ? !#$ !#$ !#$ !#$ %?%?%?%? &?&?&?&? ? ? ? ? ? ? ? ? ? ? ?+? ?/?.?)8? ? ?4 $?$?% &?(?)*?:?4?)8? ? $?(#.?:?#? ?:?#?#?/#? ? ? ? ?+? ?/?.?)8? ? ?- $?$?%

18、 &?(?)*?:?4?)8? ? ?4? $? ! .8?#?.? ?7? ? ? ? ?+? ?/?.?)8? ? ?4 $?$?% &?(?)*?:?-?)8? ? ?4?3?.?3?/? ?5:?0?#?)?#? ? ? !? ?3?/.? ?)?/?7?8?3?/?(#.?4?# ?0?#? ? !.?:?8?.?/.? ?2?.? www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 3. Circuit Description CPU(IC401) :uPD780204G

19、F 1. Pin Configuration www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 2. Pin Description Pin No.Pin NameI/OACTIVEPORT NAMEREMARK 1Vdd-H+5VSystem power supply 2P37IHKR4Key read 4 3P36IHKR3Key read 3 4P35IHKR2Key read 2 5P34IHKR1Key read 1 6P33-Not used 7P32-Not used

20、 8P31OH/LPWR_LED(RED)L:AMBER L:GREEN H:RED 9P30OH/LPWR_LED(GRN)L:STBY H:OPER L:PROT 10RESETILSystem resetLow reset 11X2-OSCMain system osc. 12X1I-OSC- 13Vpp-Conneced to Vss 14XT2-Not used 15P04/XT1IH/LOPT_RDSRds on/off 16Vdd-H+5VSystem power supply 17P27-Not used 18P26-Not used 19P25ILPWR DOWNDetect

21、 power off 20P24OHPWR_RLYPower Relay on/off 21P23OHVR_UPVolume up 22P22OHVR_DOWNVolume Down 23P21ILPROTECTDetect protection 24P20OHPWR_MUTEPower Mute 25AVss-LGNDAnalog ground 26P17OHPRE_MUTEPre mute 27P16OHTUNER_MUTETuner mute 28P15IH/LIF_INIF conter in 29P15OHPLL CE 30P13OHPLL CLOCK 31P12OH/LPLL DA

22、TA 32P11ILTUNEDTuned in on : L 33P10ILSTEREOStereo in on : L 34Avdd-H+5VAnalog power supply 35Avref-LGND 36P03-Not used 37INTP2ILRDS CLKRds clock in 38P01IHRDS DATA Rds data in 39P00ILREMOCON INRemocon data in 40Vss-LGNDGround 41P74OH/L78211 CLK 42P73OH/L78211 CE 43P72-Not used 44P71-Not used 45P70-

23、Not used 46 Vdd - H +5V uPD780204GF QFP Type www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 Pin No.Pin NameI/OACTIVEPORT NAMEREMARK 47P127-Not used 48P127-Not used 49P125-Not used 50P124OH/L78211 DATA 51P123-Not used 52P122-Not used 53P121-Not used 54P120-Not used

24、55P117OHVMAXVMAx on/off 56P116OHSPK1_RLYSpeaker1 relay on/off 57P115OHSPK2_RLYSpeaker2 relay on/off 58P114OHSPK1_LEDSpeaker1 led on/off 59P113OHSPK2_LEDSpeaker2 led on/off 60P112OHSPK12_LEDSpeaker1/2 led on/off 61P111- 62P110- 63P107OHVR_LEDVolume led on/off 64P106IH/LOPT_STEPL:E.U. , H:USA 65P105IH

25、/LOPT_3400/3700L:3400, H:3370 66FIP33OHS18FIP segment output 67FIP32OHS17FIP segment output 68FIP31OHS16FIP segment output 69FIP30OHS15FIP segment output 70FIP29OHS14FIP segment output 71FIP28OHS13FIP segment output 72FIP27OHS12FIP segment output 73FIP26OHS11FIP segment output 74FIP25OHS10FIP segmen

26、t output 75FIP24OHS9FIP segment output 76FIP23OHS8FIP segment output 77FIP22OHS7FIP segment output 78FIP21OHS6FIP segment output 79Vload-VloadFIP DRIVER VOLTAGE 80FIP20OHS5FIP segment output 81FIP19OHS4FIP segment output 82FIP18OHS3FIP segment output 83FIP17OHS2FIP segment output 84FIP16OHS1FIP segm

27、ent output 85FIP15OHG16FIP grid output 86FIP14OHG15FIP grid output 87FIP13OHG14FIP grid output 88FIP12OHG13FIP grid output 89FIP11OHG12FIP grid output 90FIP10OHG11FIP grid output 91FIP9OHG10FIP grid output 92FIP8OHG9FIP grid output 93FIP7OHG8FIP grid output 94FIP6OHG7FIP grid output 95FIP5OHG6FIP gr

28、id output www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 Pin No.Pin NameI/OACTIVEPORT NAMEREMARK 96FIP4OHG5FIP grid output 97FIP3OHG4FIP grid output 98FIP3OHG3FIP grid output 99FIP1OHG2FIP grid output 100FIP0OHG1FIP grid output 1 2 3 4 5 6 PLL MODE 1 PLL MODE 2 PLL

29、 MODE 3 PLL MODE 2 PLL MODE 3 PLL MODE 1 ? ? ? ? 562314 ? A dotted line (.) : In case that IF COUNT is not proper, follow PLL MODE of 56 When changing BAND, selecting the PRESET STATION using TEN KEY and selecting the PRESET STATION using PRESET CHANNEL UP/DOWN When IF COUNT is not proper in case th

30、at the frequency is not tuned ? ? ? ? 1231456 ? ? 4 3. Timing Chart (IF Count) www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 ? ? ? ? 1 11111 ? ? MANUAL TUNING UP/DOWN ? MANUAL TUNING UP/DOWN KEY OFF ? ? ? ? 1231456 ? ? ? www.freeservicemanuals.info9/9/2013 World o

31、f free manuals RadioFans.CN 收音机爱好者资料库 ? ? ? ? 1231456 ? ? ? ? ? ? ? 123131 ? ? 12231456 ? ? ? ? ? ? - AUTO TUNING UP/DOWN - POWER ON www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 4. Pheriperal IC Operation 1) FUNCTION IC. : LC7821-1/3 ? ? ? ? ? www.freeserviceman

32、uals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 2) PLL IC. (LC7218) ? ? 2) MODE 2 : FREQUENCY OUT/ OUTPUT CONTROL 3) MODE 3 : IF COUNT READ ? 1) MODE 1 : FREQUENCY OUT/ TUNED CHECK ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans

33、.CN 收音机爱好者资料库 4. BLOCK DIAGRAM HK3370 / HK3470 www.freeservicemanuals.info9/9/2013 World of free manuals RadioFans.CN 收音机爱好者资料库 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

34、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,

35、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. Boa

36、rd(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) fro

37、m 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

38、 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

39、 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

40、 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)

41、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. Re

42、move 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(4

43、4), 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