Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio TX-DS494 onkyo_tx-ds494_ht-r490-sm-av-receiver

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                                                                                                                                                                                                                    Ref. No.3676
                                                                          SERVICE MANUAL
                                                                         AV RECEIVER

                                                                                                                                                                                                        RE M OTE C4 44M OLLER

                                                                                                                                                                                              STANDBY/ ON SLEEP     DIMMER DISPLAY

                                                                                                                                                                                                            INPUT SELECTOR
                                                                                                                                                                                                  CD         TAPE   PHONO        TUNER

                                                                                                                          / DTS                                                                 DVD         VIDEO 1 VIDEO 2
                                   DISPLAY                                                                   STEREO   SURROUND     DSP                        MASTER VOLUME
                                                                                           LISTENING MODE                                                                                                                 TUNER
 STANDBY/ON                                                                                                                                                                                    SUR MODE SW MODE AUDIO SEL PRESE T

                                                                                                                                                                                                  TV        CABLE SATELLITE       VCR

                                                                                                                                                                                              STANDBY/ ON    DVD         CD       TAPE

  STANDBY                                                                                                                                                                                       CH             T V VOL                CH

   ON   OFF
                                       SP SEL SW MODE    DIGITAL INPUT      FM MODE       MEMORY            TUNING            PRESET                                                            DISC                              MUTING
                                                                                                                                                                                              TV/ VCR          T V VOL

                                                                                                                                                                                               TOP MENU              MENU
                        AUDIO    DVD           VIDEO 1          VIDEO 2    TAPE            FM               AM          PHONO            CD
                                                                                                                                                                                               RETURN               SETUP

                                                                                                                                                                                              TEST TONE CH SEL                LEVEL
  PHONES                                                                                                                                               BASS        TREBLE

                                                                                                                                                                   AV RECEIVER   TX-DS494

               Black,Silver and Golden model
                 BMDD                                                                                        120V AC, 60Hz
                 BMPP,SMPP,BMPA,GMPA                                                                         230-240V AC, 50Hz
                 BMWT,BMWR,GMWT,GMWR                                                                         120/220-230V AC, 50/60Hz
                 GMGT                                                                                        220-230V AC 50/60Hz

               Black model
                          120V AC,60Hz

                                 SAFETY-RELATED COMPONENT
                                 COMPONENTS IDENTIFIED BY MARK                                                                                  ON THE
                                 SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
                                 CRITICAL FOR RISK OF 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.

  Continuous Average Power output (FTC)                                            Capture Ratio:                   2.0 dB
      All channels:                     55 watts per channel min. RMS at 8 ohms,   Image Rejection Ratio
                                        2 channels driven from 20 Hz to 20 kHz         North American models:       40 dB
                                        with no more than 0.08% total harmonic         Other models:                85 dB
                                        distortion.                                IF Rejection Ratio:              90 dB
                                        70 watts min. RMS at 6 ohms, 2 channels    Signal-to-Noise Ratio
                                        driven from 1 kHz with no more than            Mono:                        76 dB
                                        0.1% total harmonic distortion.                Stereo:                      70 dB
  Continuous Power output (DIN) 75 watts 5 at 6 ohms                               Alternate Channel Attenuation:   55 dB
  Maximum Power output (EIAJ) 100 watts 5 at 6 ohms                                Selectivity:                     50 dB (DIN)
  Total Harmonic Distortion:            0.08% at rated power (Front)               AM Suppression Ratio:            50 dB
  IM Distortion:                        0.08% at rated power (Front)               Total Harmonic Distortion
  Damping Factor:                       60 at 8 ohms (Front)                           Mono:                        0.2%
  Input Sensitivity and Impedance                                                      Stereo:                      0.3%
                                                                                   Frequency Response:              30 Hz-15 kHz, 

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