Onkyo-FRN3X-cdmd-sm维修电路原理图.pdf
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1、FR-N3X SERVICE MANUALSERVICE MANUAL CD/MD TUNER AMPLIFIER Silver model MODEL FR-N3X Ref. No. 3738 062002 120V AC, 60Hz 220-230V AC, 50/60Hz UDT UGQ,UGR,UGT RC-497S SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF
2、FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. Radio
3、Fans.CN 收音机爱 好者资料库 FR-N3X SPECIFICATIONS General Power supplyAC 220-230 V, 50/60 Hz AC 120 V, 60 Hz Power consumption46 W (220-230 V, 50/60 Hz) 55 W (120 V, 60 Hz) (Standby)1.5 W Clock precisionmonthly error: +/- 30 seconds (at 25 degrees Celsius) Dimensions (W H D) 155 190 361 mm Weight4.7 kg Ampli
4、fier Power output2 18 W at 4 EIAJ 2 15 W at 6 EIAJ Rated Power 2 13W min, RMS at 4 1 kHz no more than 0.4 % THD Dynamic power2 14 W at 4 Total harmonic distortion0.4 % at rated power IM distortion0.4 % at rated power Damping factor25 at 8 Sensitivity and impedance LINE, CDR/TAPE:300 mV, 50 k CDR/TAP
5、E: 300 mV, 50 k Frequency response10 to 100,000 Hz : +3.5, -3dB Tone control S.BASS+10 dB at 50 Hz Bass120 Hz 7 positions (-7, -5, -2.5, 0, +2.5, +5, +7 dB) 10 kHz Signal to noise ratioLINE, CDR/TAPE: 100dB (IHF-A) Muting50 dB CD player Signal readout systemOptical non-contact Frequency response10 H
6、z to 20 kHz ( 2 dB) Below threshold of measurability MD recorder Signal readout systemOptical non-contact Frequency response10 Hz to 20 kHz ( 2 dB) Wow and flutterBelow threshold of measurability Tuner Tuning rangeFM: 87.50 to 108.00 MHz (50 kHz steps) AM: 522 to 1611 kHz (9 kHz steps) Usable sensit
7、ivityFMMono:11.2 dBf, 1.0 V (75 IHF) Stereo:17.2 dBf, 2.0 V (75 IHF) AM: 30 V 50 dB quieting sensitivityFMMono:17.2 dBf, 2.0V (75 ) Stereo:37.2 dBf, 20.0 V (75 ) Capture ratio2.0 dB Image rejection ratioFM: 85 dB AM: 40 dB IF rejection ratioFM: 90 dB AM: 40 dB Signal to noise ratioFMMono : 72 dB IHF
8、 Stereo : 67 dB IHF AM: 40 dB SelectivityFM: 50 dB (300 kHz at 40 kHz devi.) Harmonic distortionFM: Mono: 1.0 % Stereo: 0.3 % AM: 0.7 % Frequency responseFM: 30 to 15,000 Hz (1.5 dB) Stereo separationFM: 45 dB at 1,000 Hz FM: 30 dB at 100 to 10,000 Hz Trable Wow and flutter 7 positions (-7, -5, -2.5
9、, 0, +2.5, +5, +7 dB) Specifications and features are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 FR-N3X FR-N3X A082 A082 A082 A079 A073 A082 A109 Z001 Z003 Z002 Z004 A049 A067 P351 A070 A040 A052 A001 A097 A098 A100 A103 A089 A090 A099 A106 A040 Q559 Q557 Q558 Q560 U7 U1A040 A040 A037
10、 U9 P901 A034 A040A067 A022 U4 U8 A101 A042 A040 U10 P102 U6 A016 F901 T901 A031 A019 A106 P451 A058 P201 P202 A085 A041 A041 A043 A107 U5 U3 U2 A040 A019 P101 U11 A013 EXPLODED VIEW Refer to EXPLODED VIEWS OF CD MECHANISM FR-N3X PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a
11、 laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING! SERVICE WARNING : DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION, BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF T
12、HE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. Laser Diode Properties Material: GaAS/GaALAs Wavelength: 780nm Emission Duration: continuous Laser output: max. 0.5mW* *This output is the value measured at a distance about 1.8mm from the objective lens surface on the Optical Pick-up Block. LASER WARN
13、ING LABEL The label shown below are affixed. 1. Warning label 2. Class 1 label CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT SERVICE PROCEDURE 1. Replacing the fuses REF.NO.PART NO.DESCRIPTION F901A 2521581.6A-UL/T-237, Fuse 2520830.4A-SE-EAK, Fuse NOTE : : 120 V model only : 220 -
14、 230 V models only This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse , For fuse rating, refer to the marking adjest to the symbol. (1) Press and the hold down the CD STOP button , then pres
15、s the STANDBY/ON button. (2) All segment light up and character scroll, the preset memory and each mode stored in the memory, are initialized and will return to the factory settings. (3) Press the STANDBY/ON button. (4) Disconnect the AC power supply cord from a wall outlet. 2. How to initialize the
16、 unit Ce symbole indique que le fusible utilise est e lent. Pour une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre. SERVICE PROCEDURES 5. Change the band step R703 R704 R705 R706 R707 R708 NC 10k NC 10k NC 10k 10k NC NC 10k
17、NC 10k 9kHz 10kHz AM Band step NC:No connection 3. How to check version of MD mechanism microprocessor? (1) Connect the AC power supply cord to a wall outlet. (2) Press STANDBY/ON to turn on the unit. (3) Press CD/MD to select the MD position, and Change into the state of No Disc . (4) Press MODE/YE
18、S as pressing down DISPLAY. Microprocessor version on the Fl display Ex. 020328 EXX-a (5) Disconnect the AC power supply cord from a wall outlet. 4. How to check version of Main microprocessor(Q701) and Sub microprocessor(Q801)? (1) Connect the AC power supply cord to a wall outlet. Pushing STANDBY/
19、ON is continued at operation of (2) and (3). (2) Press STANDBY/ON as pressing down MULTI JOG. Main-microprocessor version on the Fl display Ex. Main 020327A (3) Press STANDBY/ON as pressing down MULTI JOG. Sub-microprocessor version on the Fl display Ex. Sub 020227A (4) Disconnect the AC power suppl
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