Jvc KDAR 770 J Service Manual

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1-2 (No.MA247) SPECIFICATION KD-AR770/KD-G720 AUDIO AMPLIFIER SECTION Power Output 20 W RMS × 4 Channels at 4 -„¦ and [< or =] 1% THD+N Signal to Noise Ratio 80 dBA (reference: 1 W into 4 -„¦) Load Impedance 4 -„¦ (4 -„¦ to 8 -„¦ allowance) Tone Control Range Bass ±10 dB at 100 Hz Treble ±10 dB at 10 kHz Frequency Response 40 Hz to 20 000 Hz Line-Out Level/Impedance KD-AR770 4.0 V /20 k -„¦ load (full scale) KD-G720 2.5 V /20 k -„¦ load (full scale) Output Impedance 1 k -„¦ Subwoofer-Out Level/Impedance 2.0 V /20 k -„¦ load (full scale) Other Terminals CD changer LINE IN plugs (only for KD-AR770) TUNER SECTION Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz) 87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz) AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz) 531 kHz to 1 602 kHz (with channel interval set to 9 kHz) FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 -„¦) 50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 -„¦) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 35 dB AM Tuner Sensitivity 20 µV Selectivity 35 dB CD PLAYER/USB MEMORY SECTION Type Compact disc player Signal Detection System Non-contact optical pickup (semiconductor laser) Number of Channels 2 channels (stereo) Frequency Response 5 Hz to 20 000 Hz Dynamic Range 96 dB Signal-to-Noise Ratio 98 dB Wow and Flutter Less than measurable limit MP3 Decoding Format MPEG1/2 Audio Layer 3 Max. Bit Rate : 320 kbps WMA (Windows Media® Audio) Decoding Format Max. Bit Rate : 192 kbps Playable USB memory Format FAT 12/16/32 Storage Less than 4 GB (1 partition type) Playable Audio Format MP3/WMA Max. Current Less than 500 mA GENERAL Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance) Grounding System Negative ground Allowable Operating Temperature 0 °C to +40 °C (32 °F to 104 °F) Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 152 mm (7-3/16" × 2-1/16" × 6") Panel Size (approx.) 188 mm × 58 mm × 11 mm (7-7/16" × 2-5/16" × 7/16") Mass (approx.) 1.4 kg (3.1 lbs) (excluding accessories)

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(No.MA247)1-3 KD-G722/KD-G721 AUDIO AMPLIFIER SECTION Maximum Power Output Front 50 W per channel Rear 50 W per channel Continuous Power Output (RMS) Front 19 W per channel into 4 -„¦, 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Rear 19 W per channel into 4 -„¦, 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Load Impedance 4 -„¦ (4 -„¦ to 8 -„¦ allowance) Tone Control Range Bass ±10 dB at 100 Hz Treble ±10 dB at 10 kHz Frequency Response 40 Hz to 20 000 Hz Signal-to-Noise Ratio 70 dB Line-Out Level/Impedance 2.5 V/20 k -„¦ load (full scale) Output Impedance 1 k -„¦ Subwoofer-Out Level/Impedance 2.0 V/20 k -„¦ load (full scale) Other Terminals CD changer, Steering wheel remote input TUNER SECTION Frequency Range FM 87.5 MHz to 108.0 MHz AM (MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 -„¦) 50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 -„¦) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 30 dB MW Tuner Sensitivity 20 µV Selectivity 35 dB [LW Tuner] Sensitivity 50 µV CD PLAYER/USB MEMORY SECTION Type Compact disc player Signal Detection System Non-contact optical pickup (semiconductor laser) Number of Channels 2 channels (stereo) Frequency Response 5 Hz to 20 000 Hz Dynamic Range 96 dB Signal-to-Noise Ratio 98 dB Wow and Flutter Less than measurable limit MP3 Decoding Format MPEG1/2 Audio Layer 3 Max. Bit Rate : 320 kbps WMA (Windows Media® Audio) Decoding Format Max. Bit Rate : 192 kbps Playable USB memory Format FAT 12/16/32 Storage Less than 4 GB (1 partition type) Playable Audio Format MP3/WMA Max. Current Less than 500 mA GENERAL Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance) Grounding System Negative ground Allowable Operating Temperature 0 °C to +40 °C Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 152 mm Panel Size (approx.) 188 mm × 58 mm × 11 mm Mass (approx.) 1.4 kg (excluding accessories)