Yamaha-DSPAX-620-Service-Manual电路原理图.pdf
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1、AV AMPLIFIER 100763 This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefo
2、re not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that an
3、y service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or es
4、tablish a principle-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevi
5、table and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulat
6、ed by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. IMPORTANT NOTICE DSP-AX620 SERVICE MANUAL I CONTENTS TO SERVICE PERSONNEL
7、. 1 FRONT PANEL . 1 REAR PANELS . 2 SPECIFICATIONS .3 5 INTERNAL VIEW . 5 DISASSEMBLY PROCEDURES .6 8 SELF DIAGNOSIS FUNCTION.9 27 AMP CHECK . 28 IC DATA .29 36 DISPLAY DATA .37 38 PIN CONNECTION DIAGRAM . 39 BLOCK DIAGRAM .40 43 PRINTED CIRCUIT BOARD .44 67 SCHEMATIC DIAGRAM .68 73 PARTS LIST .74 9
8、2 REMOTE CONTROL TRANSMITTER.93 95 DSP-AX620 RadioFans.CN 收音机爱 好者资料库 DSP-AX620 DSP-AX620 I TO SERVICE PERSONNEL Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. AC LEAKAGE
9、 TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET 1 IMPEDANCE SELECTOR WARNING Do not change the IMPEDANCE SELECTOR switch setting while the power to this unit is on, otherwise this unit may be damaged. I FRONT PANEL SILENTVIDEO AUX PHONESS VIDEOVIDEOL AUDIO ROPTICAL 6CH INPUTI
10、NPUT MODE INPUT VOLUME EFFECTSET MENU DSP PROGRAM BASSTREBLESPEAKERS AB OFFONOFFON STANDBY /ON D I G I T A L BASS EXTENSION + SURROUND D I G I TA L + A/B/C/D/E RadioFans.CN 收音机爱 好者资料库 DSP-AX620 DSP-AX620 2 M R, T models I REAR PANELS 240V 50 M B model M G model DSP-AX620 DSP-AX620 3 I GENERAL Power
11、Supply B, G models . . . . . . . . . . . . . . . . . . . . . . . AC 230V, 50Hz R, T models . . . . . . . . . . . AC 110/120/220/240V, 50/60Hz Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 260W Standby Power Consumption B, G models . . . . . . . . . . . . . . . . . . . . . .
12、 . . . . . . . . . . 0.9W Maximum Power Consumption (R model only) . . . . . 610W AC Outlets R, T models, Switched x 2 . . . . . . . . . . . 50W max (Total) G model, Switched x 2 . . . . . . . . . . . . . 100W max (Total) B mode, Switched x 1 . . . . . . . . . . . . . . . . . . . . 100W max Dimensio
13、ns (W x H x D) . . . . . . . . . . . . . 435 x 151 x 390mm (17-1/8” x 5-15/16” x 15-3/8”) Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 kg (23 lbs 2oz) Finish . . . . . . . . . . . . . . . . . . . . . . . Black color (B, G models) Gold color (R, T, G models) Titanium color (G mod
14、el) Accessories . . . . . . . . . . . . Remote Control Transmitter x 1 Battery (size AAA, R03) x 4 * Specifications subject to change without notice. R . . . . . . . General model T . . . . . . . . . China model B . . . . . . . . British model G . . . . . European model I AUDIO SECTION Minimum RMS O
15、utput Power per Channel MAIN, 20Hz to 20kHz, 0.06% THD, 8 . . . . . 90W+90W CENTER, 20Hz to 20kHz, 0.06% THD, 8 . . . . . . . 90W REAR, 20Hz to 20kHz, 0.06% THD, 8 . . . . . 90W+90W Minimum RMS Output Power per Channel MAIN, 1kHz, 0.06% THD, 8 . . . . . . . . . . . 100W+100W CENTER, 1kHz, 0.06% THD,
16、 8 . . . . . . . . . . . . . . 100W REAR, 1kHz, 0.06% THD, 8 . . . . . . . . . . . 100W+100W Maximum Power per Channel (R, T models only) MAIN, 1kHz, 10% THD, 8, EIAJ . . . . . . . . . 115W+115W CENTER, 1kHz, 10% THD, 8, EIAJ . . . . . . . . . . . 115W REAR, 1kHz, 10% THD, 8, EIAJ . . . . . . . 115W
17、+115W Dynamic Power per Channel MAIN, 8/6/4/2 . . . . . . . . . . . . . . . . . . 120/140/175/210W DIN Standard Output Power per Channel ( G model only) MAIN, 1kHz, 0.7% THD, 4 . . . . . . . . . . . . 130W+130W CENTER, 1kHz, 0.7% THD, 4 . . . . . . . . . . . . . . . 130W REAR, 1kHz, 0.7% THD, 4 . .
18、. . . . . . . . . . 130W+130W IEC Power (G model only) MAIN, 1kHz, 0.06% THD, 8 . . . . . . . . . . . 100W+100W Damping Factor MAIN, 20Hz to 20kHz, 8 . . . . . . . . . . . . . . . . 80 or more Input Sensitivity/Impedance PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5mV/47k CD, etc
19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k EXT. DECODER MAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k CENTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k REAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k
20、SUBWOOFER . . . . . . . . . . . . . . . . . . . . . . 150mV/47k Maximum Input Signal Level PHONO MM, 1kHz, 0.1% THD (Effect on) . . . . . . 100mV CD, etc, 1kHz, 0.5% THD (Effect on) . . . . . . . . . . . . 2.2V Output Level/Impedance REC OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . 150m
21、V/1.2k PRE OUT (B, G models only) . . . . . . . . . . . . . 2.1V/1.2k SUBWOOFER (MAIN SP : SMALL) . . . . . . . . . . . .4.0V/1.2k Headphone Jack Rated Output/Impedance CD, etc (1kHz, 150mV, 8) . . . . . . . . . . . . . . . 0.4V/560 Frequency Response CD, etc (10Hz to 100kHz, MAIN L/R) . . . . . . .
22、 . +0/-3.0dB RIAA Equalization Deviation PHONO MM (20Hz to 20kHz) . . . . . . . . . . . . . . . 00.5dB Total Harmonic Distortion (20Hz to 20kHz) PHONO MM to REC OUT (1V) . . . . . . . . . . . . . . . . 0.02% CD, etc, to SP OUT L/R (45W/8) . . . . . . . . . . . . . 0.06% Signal-to-Noise Ratio (IHF-A-
23、Network) PHONO MM to REC OUT, Input Shorted 5mV R, T models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86dB B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81dB CD, etc, to SP OUT Input Shorted 250mV (Effect off) . . . . . . . . . . . . . 100dB Residual N
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