JBL-JSR400-sur-sm 电路图 维修手册.pdf

JSR-400 Dolby Pro-LogicAudio/Video ReceiverSurround JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1-800-336-4JBL in the USA A Harman International Company Rev A 10/99 SERVICE MANUAL Theis part of the System JSR-400 ARC CinemaII RadioFans.CN 收音机爱 好者资料库 2 Dolby Pro-Logic?A/V ReceiverJSR-400 JSR400 TABLE OF CONTENTS COVER.1 TABLE OF CONTENTS.2 ARC CINEMA II SPECIFICATIONS.2 SPECIFICATIONS.3 CONTROLS AND THEIR FUNCTION.7 REAR PANEL CONNECTIONS.9 DISASSEMBLY PROCEDURES .10 CIRCUIT DESCRIPTION.13 JSR400 PACKING .17 JSR400 BLOCK DIAGRAM.18 JSR-400 UNIT EXPLODED VIEW .19 JSR-400 ELECTRICAL PARTS LISTS .20 SIMPLE TROUBLESHOOTING.26 MORE COMPLEX TROUBLESHOOTING .27 TUNER ALIGNMENT.29 JSR-400 MAIN PCB .31 JSR-400 CONTROL PCB.32 JSR-400 TUNER PCB .33 JSR-400 SUB PCBs .34 WIRING DIAGRAM.35 INTEGRATED CIRCUIT DIAGRAMS 1-5 .36-40 TRANSISTOR DIAGRAMS.41 JSR-400 SCHEMATIC DIAGRAM MAIN BOARD.42 JSR-400 SCHEMATIC DIAGRAM CONTROL BOARD.43 JSR-400 SCHEMATIC DIAGRAM POWER SUPPLY/ VIDEO/TONE/ HEADPHONE/ VOLUME PCBs.44 JSR-400 SCHEMATIC DIAGRAM TUNER BOARD.45 ARC CINEMA II SPECIFICATIONS Total System Output . . . . . . . . . . 280 watts Front Channels:. . . . . . . . . . . . 50 watts x 3 .1% THD; Surround Channels:. . . . . . . . . . . 25 watts x 2 .1% THD; Subwoofer:. . . . . . . . . . . . . . 80 watts x 1 1% THD System Frequency Response . . . . . . (6dB) 45Hz 20kHz Input Impedance . . . . . . . . . . . . 20k ohms Input Sensitivity. . . . . . . . . . . . 220mV Receiver Dimensions (H x W x D). . . . . . . . 4-5/8 x 10-1/4 x 9-3/4 inches . . . . . . . . . . . . . . . . . . . . 117 x 260 x 248mm Weight. . . . . . . . . . . . . . . . 5 lbs/2.3 kg Occasional refinements may be made to existing products without notice, but will always meet or exceed original specifications unless other-wise stated. RadioFans.CN 收音机爱 好者资料库 3 Dolby Pro-Logic?A/V ReceiverJSR-400 SPECIFICATIONS Measuring methods are based on IHF and IEC standard 268-3 Measurement conditions, unless otherwise noted: Output resistive load = (8) ohms / Both channels driven Tone (Base, Treble), Balance, EQ control : Center Position, Other SWs : OFF Nominal input level: 5mV for MM, 0.5mV for MC, 500mV for general purpose inputs Power figures should be kept minimum 10 minutes between 15 and 35?C Terminator: 100 ohm for MC, 1kohm for MM for MM and general purpose inputs Filter: IHF-A filter R/O = Rated Output Power Supply: 120V, 60Hz Front Amp Section NO.DESCRIPTIONINPUTFREQ.REMARKUNITLIMIT L/RNOMINAL L/RLR 1INPUT SENSITIVITY CD1kHzmV200?30200?30 MM1kHzmV MC1kHzmV MIC1kHzmV 2CHANNEL BALANCECD 1kHzR/O TO -40dBdB?3?2 1kHz 4RESIDUAL NOISECD 1kHzVOL min.mV? 1 1kHzVOL max.mV 5 TOTAL HARMONIC DISTORTION CD (500mV) (40)HzR/O / 1W%? 1?0.3 1kHzR/O / 1W%? 1?0.3 (20)KHzR/O / 1W%? 1?0.3 6 CONTINUOUS AVERAGE POWER CD (40)Hz(8)ohmsW5052 1kHz(8)ohmsW5052 (20)KHz(8)ohmsW5052 7S/N RATIO, IHF-A FILTER CD (500mV) 1kHzR/OdB?65? 70 1kHz1WdB MM (5mV) 1kHzR/OdB 1kHz1WdB MC (0.5mV) 1kHzR/OdB 1kHz1WdB 8CHANNEL SEPARATIONCD (500mV) 100HzR/O-3dBdB 1kHzR/O-3dBdB? 45? 55 10kHzR/O-3dBdB? 40? 45 9FUNCTION CROSSTALK TAPE?AUX1/10kHzR/O-3dBdB? 60/40?65/45 AUX?TAPE1/10kHzR/O-3dBdB? 60/40?65/45 MM?CD1/10kHzR/O-3dBdB 10 FREQUENCY RESPONSE (-3DB) CD (500mV)1WHzkHz4020k2050k 11TONE CONTROL, ?(10)dBCD 100Hz1WdB? 10? 2? 10? 1 10kHz1WdB? 10? 2? 10? 1 RadioFans.CN 收音机爱 好者资料库 4 Dolby Pro-Logic?A/V ReceiverJSR-400 Rear Amp Section NO.DESCRIPTIONINPUTFREQ.REMARKUNITLIMIT L/RNOMINAL L/R 1POWER OUTPUT 0.9% THD CD 1kHz(8) ohmsW? 50?52 2 TOTAL HARMONIC DISTORTION CD1kHz1W%? 1?0.7 3 S/N RATIODOLBY IHF-A FILTER, THEATER HALL STADIUM CHURCH CDR/OdB? 60?65 CDR/OdB CDR/OdB? 60?65 CDR/OdB CDR/OdB 4 FRE RES. (ONLY DOLBY) ? 3dB CD1kHz1WHzkHz1006807 Center Amp Section NO.DESCRIPTIONINPUTFREQ.REMARKUNITLIMIT L/RNOMINAL L/R 1POWER OUTPUT 0.9% THD CD 1kHz(8) ohmsW? 50?52 2 TOTAL HARMONIC DISTORTION CD1kHz1W%? 1?0.3 3S/N RATIO IHF-A FILTERCDR/OdB? 73?78 4 FRE RES.LARGE DOLBY MODESMALL CD1WHzkHz5015k3017k CD1WHzkHz12015k10017k Video Section NO.DESCRIPTIONINPUTFREQ.REMARKUNITLIMIT L/RNOMINAL L/R 1OUTPUT LEVEL at 75OHMSVCR1 (1Vp-p)1MHzVp-p1?0.21?0.1 2FREQUENCY RESPONSE VCR1 (1Vp-p) 1MHz HzMHzDC6DC6.3 3S/N RATIOVCR1 (1Vp-p)1MHz dB4045 4CROSS TALK VCR1 (1Vp-p) 1MHzdB 4045 5 Dolby Pro-Logic?A/V ReceiverJSR-400 TUNER Measuring methods in conformity with IEC standard 315 Measurement conditions FM: Radio frequency = 98.1 MHZ, Audio frequency = 1 kHz Reference level = 1mV on ( 75ohms, 300ohms) Test Point: TP 1 = 90.1MHz, TP 2 = 98.1 MHz, TP 3 = 106.1 MHz Filter = B.P.F at STEREO Power Supply: 120V, 60Hz FM Section NO.DESCRIPTIONUNITLIMIT L/RNOMINAL L/R 1 TUNING RANGELOW HIGH STEPAUTO/Man. MHz87.5107.9M kHz100 2 USABLE SENSITIVITYTP 1 S/N = 30dBTP 2 TP 3 dBf? 23.2?17.2 dBf? 23.2?17.2 dBf? 23.2?17.2 3 FULL LIMITING SENSEOUTPUT = -3dB dBf? 15.2?12.2 4AUTO STOP LEVEL dBf31.2? 531.2?3 5 S/N RATIOMONO IHF-A FILTERSTEREO dBf? 65?72 dBf? 59?70 6 TOTAL HARMONIC DISTORTIONMONO STEREO %? 1?0.5 %? 1.5?1 7 50dB QUIETING SENS.MONO STEREO dBf? 23.2?20.2 dBf? 45.2?43.2 8 CHANNEL SEPARATION250Hz 1kHz 6.3kHz dBf? 20?40 dBf? 26?45 dBf? 18?35 9FREQUENCY RESPONSE AT ? 1.5dB Hz3012.5k 2015k 10SPURIOUS RESPONSE dB? 60 ?70 11IF REJECTIONTP 1 dB? 60 ?70 12IMAGE REJECTIONTP 3 dB? 30 ?40 13AM REJECTION RATIO dB? 25 ?30 14ALTERNATIVE CH SELECTIVITY? (400)KhZ dB? 55?65 15OUTPUT LEVEL MONOmV500? 200500? 150 6 Dolby Pro-Logic?A/V ReceiverJSR-400 Measuring methods in conformity with IEC standard 315 Measurement conditions AM - MW: Radio frequency = 1000/999kHz Audio frequency = 400Hz LW: Radio frequency = 207kHz Audio frequency = 400Hz Reference level = 5mV/m, 10mV/m on 50ohms Modulation = 30% Test Point: MWTP1 = (600)kHzTP2 = (1000)kHzTP3 = (1400)kHz LWTP1 = 162kHzTP2 = 207kHzTP3 = 252kHz AM Section NO.DESCRIPTIONUNITLIMIT L/RNOMINAL L/R 1 TUNING RANGELOW HIGH MW LW STEPAUTO/Man. kHz5201710 kHz kHz 10 2 USABLE SENSITIVITYMWTP 1 TP 2 S/N = 20dBTP 3 LWTP 1 TP 2 TP 3 uV/m? 800?500 uV/m? 800?500 uV/m? 800?500 uV/m uV/m uV/m 3 S/N RATIOMW LW dB? 35?45 dB 4TOTAL HARMONIC DISTORTION %? 1.5?1.0 5OVER LOAD DISTORTION 5mV 80% MOD %? 10?5 6 FREQUENCY RESPONSE at -6dBMW LW Hz1002k802.3k Hz 7 SELECTIVITY 10KhZ/9KhZMW LW dB? 20?25 dB 8AGC FIGURE OF MERITINPUT 100mVdB? 40?45 9 IMAGE REJECTIONMW = TP 3 LW = TP 3 dB? 30?35 dB 10FREQUENCY RESPONSE AT ? 1.5dB %? 15?10 %? 15?10 11 AUTO STOP LEVELMW LW uV/m800(? 6dB)800(?5dB) uV/m 12 TUNED LEVELMW LW uV/m800(? 6dB)800(?5dB) uV/m 13OUTPUT LEVEL mV120? 40 120?30 7 Dolby Pro-Logic?A/V ReceiverJSR-400 CONTROLS AND THEIR FUNCTION DOLBY SURROUND P R OL O G I C ? JSR-400 AV RECEIVER UP DOWN TUNING AUTO STEREO PM WIDE MATRIXHALL NORMAL FM AMSIMULATED PHANTOMBYPASS TUNED DELAY CENTER REAR TIME kHz MHz AUTOMUTEMEMORY DOLBY SURROUND P R OL O G I C DOLBY 3 STEREO CENTER MODE PRESET SPEAKERS OFF mS dB ch MODE CENTER TONE TEST BYPASSFM/AMCDTAPEVCR1VCR2AUX/TVPRO LOGIC3 STEREOHALL DOLBYDOLBY LRMINMAX BALANCEBASS MAXMIN TREBLE VCR 2 AUDIOLRHESDPHONES SPEAKERS VIDEO POWER (STANDBY) VOLUME 4 5678910 11 12 13 14 15 16 17182019 1 3 25242221232 1. Power: Once the unit is plugged in, it is in either STANDBY or ON. This button switches from STANDBY to ON, or can be operated from the remote control. In either state the receiver is NOT disconnected from the AC main power supply. 2. LED: In the STANDBY mode the LED is RED, when ON the LED is Off. 3. Speaker Switch: Press this button to mute the output to all speakers. 4. Headphone Jack: Normally the speaker switch (#3) is pressed to mute speaker output for headphone listening. 5. Video 3 Input: Audio or Video sources connected to these jacks may be selected by pressing the VCR2 button (16). 6. Dolby Pro-Logic: Press this button to engage Dolby Pro-Logic sound decoding. All five speakers are active in this mode. 7. Dolby 3 Stereo: Press this button to engage Dolby 3 Stereo; only the front and center loudspeakers are active in this mode. 8. Hall: Press this button to create a surround image from a 2 channel recording. 9. Center Mode: Press this button to change the center speaker effect between NORMAL, WIDE and PHANTOM when in the surround modes. 10. Test Tone: The test tone is used to calibrate the volume settings of the speakers.A static noise will be heard cycling, in order, from the front left, center, right, and both surround speakers. When the test tone is cycling, you may adjust the volume level of the center and surround speakers with the CENTER LEVEL or REAR LEVEL buttons on the remote control. Press the Test Tone button once more to return to normal mode. NOTE: The test tone is used to calibrate the performance of the system.When listening to an actual recording, the volume level of the surround channels is generally much lower than that of the front channels. In fact, when listening to a movie, virtually all of the dialogue and a substantial amount of the effects are reproduced through the center channel. 11. By Pass: Press this button to engage traditional 2 channel Stereo listening.Only the front speakers will be active. 12. AM/FM Tuner Selector: Press this button once to select the tuner. Press it again to switch between AM and FM. 13. CD: Press this button to select the CD player. 14. Tape: Press this button to select the Cassette tape player. 15. VCR1: Press this button to select a VCR or video source connected to the rear panel on the unit. 8 Dolby Pro-Logic?A/V ReceiverJSR-400 16. VCR2: Press this button to select a VCR or video source connected to the front panel on the unit. 17. AUX/TV Input: Press this button to select the source connected to the TV Input. 18. Balance: This knob adjusts the balance between the front left and right speakers. 19. Bass: This knob adjusts the tone of low-frequency sounds. Turn it to the right to boost bass frequencies or to the left to cut bass frequencies. 20. Treble: This knob adjusts the tone of high-frequency sounds. Turn it to the right to boost high frequencies or to the left to cut high frequencies. 21. Volume Control: Turn the knob clockwise to increase volume, counterclockwise to decrease the volume. 22. Auto tune: Press this button when in the AM/FM mode to direct the receiver to seek only the strongest stations when pressing the TUNING button #23. 23. Tune: Press this button to manually scan up or down through the FM or AM bands. 24. Information Display: This display delivers messages and status indications to help you operate the receiver. 25. Remote Sensor Window: The sensor behind this window receives infrared signals from the remote control. Aim the remote at this area and do not block or cover it. 9 Dolby Pro-Logic?A/V ReceiverJSR-400 REAR PANEL CONNECTIONS 26. AM Antenna: Connect the AM loop antenna supplied with the receiver to these terminals. 27. FM Antenna: Connect the FM antenna supplied with the receiver to these terminals. 28. AUX In: Connect a TV output or any auxiliary audio source (except for a phonograph) to these jacks.A phonograph will need a phono pre-amp before being connected to these jacks 29. CD IN: Connect these jacks to the output of a compact disk player or CD changer. 30. Tape In: Connect these jacks to the PLAY/OUT jacks of an audio recorder. 31. Tape Out: Connect these jacks to the RECORD/INPUT jacks of an audio recorder. 32. VCR In: Connect these jacks to the audio output jacks of a stereo VCR. 33. VCR Out: Connect these jacks to the audio input jacks of a stereo VCR. 34. Video - VCR1: Connect the single input jack to the video output jack of a VCR, and the output jack to the video input jack of the same VCR. 35. TV Monitor Video Output: Connect this jack to the standard (composite) video input of a TV monitor or video projector to view the output of any standard video source selected by the receivers video switch. 36. Subwoofer Pre-Out: Connect this jack to the line level input of a powered subwoofer.If an external subwoofer amplifier is used, connect this jack to the subwoofer amplifier input. 37. Rear Speakers: Connect these terminals to the surround speakers. 38. Main Speakers: Connect these terminals to the front speakers. 39. Center: Connect these terminals to the center speaker. 40. Power Cable: Connect the AC plug to a non-switched AC wall output. WARNING : TO REDUCE THE RISK OF FIRE OR DO NOT EXPOSE THISAPPLIANCE TO NE PAS EXPOSER CET APPPAREIL AVERTISSEMENT : AFIN DEVITER LES DANGERS A LA PLUIE NI A LHUMIDITE. DINCENDIE ET DELECTROCUTION, A172 E28241 Listed (8W) AUDIO R L AUX INININ CDTAPE OUT 75W AM LOOP GND BAL 300W UNBAL FM ANTENNA IN VCR1 OUT WOOFER SUB REAR SPEAKERS R (8W) L MAIN SPEAKERS RL (8W) CENTER SPEAKERS R R 180W MONITOR VIDEO VCR1 INOUTOUT MODEL NO. : JSR-400 ELECTRIC SHOCK. RAIN OR MOISTURE. AVIS : RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR CAUTION DO NOT OPEN. RISK OF ELECTRIC SHOCK AC120V 60Hz! Northridge,CA USA A HAarman International CompanyH DOLBY PROLOGIC RECEIVER Audio equipment must accept any interference received, including interference that may cause undesired Manufactured under license from Dolby Laboratories Licensing Copration.Dolby,the double-D symboland Pro Logic are trademarks of Dolby Laborotories Liencing two conditions; (1) The device may not cause harmful interferance, and (2) This device This devices complies with Part 15 of the FCC rules. Operation is subject to the following Coporation. operation. R 27 262829 30 31 32 33 34 353637 383940 10 Dolby Pro-Logic?A/V ReceiverJSR-400 DISASSEMBLY PROCEDURES JBL JBL STEP 1. REMOVING THE TOP COVER 1. REMOVING THE SCREWS 19 STEP 2. REMOVING THE BOTTOM COVER 1. REMOVING THE SCREWS 18 STEP 3. REMOVING THE FRONT PANEL 1. REMOVING KNOB VOLUME MAIN FROM FRONT PANEL 2. REMOVING THE SCREWS 112 1 1 4 4 3 3 2 2 9 6 6 6 8 8 5 5 5 8 9 4 3 2 1 12 11 10 7 7 7 KNOB VOLUME MAIN 11 Dolby Pro-Logic?A/V ReceiverJSR-400 DISASSEMBLY PROCEDURES (continued) DINCENDIE ET DELECTROCUTION, A LA PLUIE NI A LHUMIDITE. AVERTISSEMENT : AFIN DEVIT