Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio TX-DS797 hfe_onkyo_tx-ds797_service_en

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                                                                                                                                                                                                                                                      TX-DS797

                                                                                                                                                                                                                                                Ref. No. 3714
                                                                                                                                                                                                                                                      102001
                                                               SERVICE MANUAL


                                                                AV RECEIVER
                                                MODEL TX-DS797


                                                DISPLAY    DIMMER                                                                                      REC OUT    ZONE 2       OFF
                                                                                                                                                                                                            MASTER VOLUME

STANDBY/ON


                                                                                                                                                                             SETUP
                                                                                                                                             TUNI NG



                                                                                                                                                                             ENTER

STANDBY


  POWER                                                                                                                                                                      RE TURN

                                                                                                                                             PRESET

 ON    OFF

                                                      DIRECT       STEREO    SURROUND     THX               DSP          FM MODE           MEMORY      A-FO RM LISTENING MODE MEMORY

UPSAMPLING
                                                                                                                                   CLEAR




                         ZONE 2 ( GRN )
PHONES                     REC ( RED )                                                                                                                                                           VIDEO 5/VIDEO CAM INPUT
                AUDIO                     DVD   VIDEO 1        VIDEO 2      VIDEO 3     VIDEO 4   VIDEO 5         TAPE    FM                AM          PHONO         CD
              SELECTOR




                                                VCR 1          VCR 2
                                                                                                                                                                                       DIGITAL   S VIDEO       VIDEO       L AUDIO   R


                                                                                                                                                                                                                    AV RECEIVER      TX-DS797




                                                Black, Golden and Silver models

             BMDD                                                                                                                      120V AC, 60Hz
             BMPP,SMPP,BMPA,GMPA                                                                                                       230-240V AC, 50Hz
             BMWT,GMWT,GMWR                                                                                                            120/220-230V AC, 50/60Hz
             GMGT                                                                                                                      220-230V AC, 50Hz


                    SAFETY-RELATED COMPONENT
                    WARNING!!
                    COMPONENTS IDENTIFIED BY MARK                                                                                                                      ON THE
                    SCHEMATIC DIAGRAMS 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.
                                                                                                                               TX-DS797

SPECIFICATIONS



AMPLIFIER SECTION                                                     TUNER SECTION
Continuous Average Power output (FTC)                                 FM
     All channels:              100 watts per channel min. RMS at     Tuning Range:                    87.5 -- 108.0 MHz (50 kHz steps)
                                8 ohms, 2 channels driven from 20     Usable Sensitivity
                                Hz to 20 kHz with no more than          Mono:                          11.2 dBf, 1.0 u V (75 ohms IHF)
                                0.08% total harmonic distortion.                                       0.9 uV (75 ohms DIN)
                                130 watts min. RMS at 6 ohms, 2         Stereo:                        17.2 dBf, 2.0 u V (75 ohms IHF)
                                channels driven from 1 kHz with                                        23u V (75 ohms DIN)
                                no more than 0.1% total harmonic      50 dB Quieting Sensitivity
                                distortion.                              Mono:                         17.2 dBf, 2.0uV (75 ohms)
Continuous Power output (DIN) 135 watts at 6 ohms                        Stereo:                       37.2 dBf, 20uV (75 ohms)
Maximum Power output (EIAJ) 160 watts at 6 ohms                       Capture Ratio:                   2.0 dB
Dynamic Power Output (Stereo) 2 x 250 watts at 3 ohms                 Image Rejection Ratio
                                2 x 210 watts at 4 ohms                  USA & Canadian models:        40 dB
                                2 x 130 watts at 8 ohms                  Other area models:            85 dB
Total Harmonic Distortion:      0.08% at rated power                  IF Rejection Ratio:              90 dB
                                0.08% at 1 Watt output                Signal-to-Noise Ratio
IM Distortion:                  0.08% at rated power                     Mono:                         76 dB
                                0.08% at 1 Watt output                   Stereo:                       70 dB
Damping Factor:                 60 at 8 ohms                          Alternate Channel Attenuation:   55 dB
Input Sensitivity and Impedance                                       Selectivity:                     50 dB (DIN)
  PHONO:                        2.5 mV, 50 kohms                      AM Suppression Ratio:            50 dB
  LINE (CD, TAPE, DVD,                                                Total Harmonic Distortion
  VIDEO 1-5):                   200 mV, 50 kohms                         Mono:                         0.2%
  MULTICHANNEL INPUT                                                     Stereo:                       0.3%
  (FRONT L/C/R, SURROUND                                              Frequency Response:              30 Hz -- 15 kHz, 1.0 dB
  L/R, SURROUND BACK L/R): 200 mV, 50 kohms                           Stereo Separation:               45 dB at 1 kHz
  (SUBWOOFER):                  36 mV, 50 kohms                                                        30 dB at 100 Hz 10 kHz
                                                                                                                      --
  COAXIAL 1, 2, 3 (DIGITAL): 0.5 Vp-p, 75 ohms                        AM
  DVD, VIDEO 1, 2, 3, 4, 5:     1 Vp-p, 75 ohms                       Tuning Range
                                1 Vp-p, 75 ohms (Y)                      USA & Canadian models:      530 to 1,710 kHz (10-kHz steps)
                                0.28 Vp-p, 75 ohms (C)                   European & Australian models: 522 to 1,611 kHz (9-kHz steps)
  COMPONENT VIDEO 1, 2:         1 Vp-p, 75 ohms (Y)                      Worldwide models:           531 to 1,602 kHz (9-kHz steps)
                                0.7 Vp-p, 75 ohms (PB,PR)                                            530 to 1,710 kHz (10-kHz steps)
Output Level and Impedance                                            Usable Sensitivity:            30 uV
  Rec out (TAPE, VIDEO 1, 2):                                         Image Rejection Ratio:         40 dB
                                200 mV, 470 ohms                      IF Rejection Ratio:            40 dB
  Pre out:                      1 V, 470 ohms                         Signal-to-Noise Ratio:         40 dB
  ZONE 2 OUT:                   100mV, 470 ohms                       Total Harmonic Distortion:     0.7%
  VIDEO (VIDEO 1, 2, MONITOR
   OUT, ZONE 2 OUT):            1 Vp-p, 75 ohms                       GENERAL
                                1 Vp-p, 75 ohms (Y)                   Power Supply
                                0.28 p-p, 75 ohms (C)                   USA & Canadian models:      AC 120 V, 60 Hz
  COMPONENT VIDEO OUT: 1 Vp-p, 75 ohms (Y)                              European & Australian models: AC 230-240 V, 50 Hz
                                0.7 Vp-p, 75 ohms (PB,PR)               Some Asian models:          AC 220-230 V, 50/60 Hz
Phono Overload:                 120 mV RMS at 1 kHz, 0.5% T.H.D.        Worldwide models:           AC 220-230 and 120 V switchable,
Frequency Response:             10 Hz to 100 kHz : +1/-3 dB                                         50/60 Hz
                                (CD in Direct mode)                   Power Consumption
RIAA Deviation:                 20 Hz to 20 kHz : 0.8 dB                USA & Canadian models:      6.8 A
Tone Control                                                            Other models:               550 W
  Bass:                          10 dB at 50 Hz                       Dimensions (W x H xD):        435 x 175 x 459 mm
  Treble:                        10 dB at 20,000 Hz                                                 17-1/8" x 6-7/8" x 18-1/16"
Signal-to-Noise Ratio (Stereo)                                        Weight
  Phono:                        80 dB (IHF A, 5 mV input)               USA & Canadian models:      35.9 lbs.
  CD/Tape:                      110 dB (IHF A, 0.5 V input)             Other models:               17.3 kg
                                                                      REMOTE CONTROLLER
                                                                      Transmitter:                     Infrared
                                                                      Signal range:                    Approx. 16 ft., 5 meters
                                                                      Power supply:                    Two " AA " batteries (1.5 V x 2)

                                                                    Specifications and features are subject to change without notice.
                                                                                                                                      TX-DS797
                       A                                            B                           C                                         D
    SERVICE PROCEDURES
    1. Replacing the fuses                                                  4. Memory Preservation
                                                                            This unit does not require memory preserv ation batteries. A
                This symbol located near the fuses indicates that the       built-in memory power back-up system preserv es the contents
1   fuse used is fast operating type. For continued protection against      of the memory during po wer f ailures and even when the unit is
    fire hazard, replace with same type fuse. For fuse rating refer to      unplugged. The unit must be plugged in order to char ge the
    the marking adjacent to the symbol.                                     back-up system.
                                                                            The memory preserv ation period after the unit has been
                Ce symbole indique que le fusible utlise est a rapide.      unplugged v aries depending on climate and placement of the
    Pour une protection permanente, n'untiliser que fusibles de             unit. On the average, memory contents are protected over a
                                                                            period of a fe w weeks after the last time the unit has been
    meme type. Ce darnier est la qu le present symbol est
                                                                            unplugged. This period is shorter when the unit is exposed to a
    appse.
                                                                            highly humid climate.

    CIRCUIT NO.          PART NO.       DESCRIPTION                         5.Setting the Voltage selector (Worldwide models
    F901                 252199         10A-UL/T-314,Fuse           onl y)
    F902                 252077,        4A-SE-EAK,
                         252243 or      4A-SE-TL250V or                     Worldwide models are equipped with a voltage selector to conform with
2                                                                           local power supplies. Be sure to set this switch to match the voltage of
                         252277         4A-SE-TL250V,Fuse 

the power supply in your area before plugging in the unit. F903 252075, 2.5A-SE-EAK, 1. Determine the proper voltage for your area: 220-230 V or 252241 or 2.5A-SE-TL250V or 120 V. 252275 2.5A-SE-TL250V,Fuse

2. If the preset voltage is not correct for your area, insert a screw- F9501,F9502 252160 or 2.5A-UL/T-237 or driver into the groo ve in the switch. Slide the switch all the w a y 252254 2.5A-T/UL-ST2,Fuse to the right (120 V) or to the left (220-230 V), which ever is 252075, 2.5A-SE-EAK, appropriate. 252241 or 2.5A-SE-TL250V or 252275 2.5A-SE-TL250V,Fuse

F9503,F9504 252158 or 1.6A-UL/T-237 or 252252 1.6A-T/UL-ST2,Fuse 3 252073 or 1.6A-SE-EAK or 252239 1.6A-SE-TL250V,Fuse

Note: :120V model only

: European model only : Worldwide model only : Asian model only for 230V : 220V model only : Australian model only 2. To initialize the unit This device employs a microprocessor to perform various functions and operations. If interference generated by an external power supply, radio wave, or other electrical source results in accident which causes the specified operations and functions to 4 operate abnormally. To perform a result, please follow the procedure below. 1.Press and hold down the VIDEO 1 button, then press the STANDBY/ON button. 2.After "clear" is displayed, the preset memory and each mode stored in the memory, such as surround, are initialized and will return to the factory setting. 3. Safety-check out (Only U.S.A. model) After correcting the original service problem, perform the following safety check before releasing the set to the customer. 5 Connect the insulating-resistance tester between the plug of power supply cord and screw on the back panel. Specifications: 3.3Mohm




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