Jvc KDG 645 U Service Manual

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Jvc KDG 645 U Service Manual

Extracted text from Jvc KDG 645 U Service Manual (Ocr-read)

Page 1

1-2 (No.MA377) SPECIFICATION KD-G441/KD-G351 Design and specifications are subject to change without notice.AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel Continuous Power Output (RMS) Front/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 ±12 dB at 60 Hz Middle ±12 dB at 1 kHz Treble ±12 dB at 10 kHz Frequency Response 40 Hz to 20 000 Hz Signal to Noise Ratio 70 dB Audio Output Level (for KD-G441) Line-Out Level/Impedance 2.5 V/20 k-„¦ load (full scale) Output Impedance 1 k-„¦ Subwoofer-Out Level/Impedance 2.5 V /20 k-„¦ load (full scale) Other Terminals AUX (auxiliary) input jack USB input jack Steering wheel remote input (forKD-G441) 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/Selectivity 20 µV/35 dB LW Tuner Sensitivity 50 µV CD PLAYER 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 320 kbps USB SECTION USB Standard USB 1.1, USB 2.0 Data Transfer Rate (Full Speed) Max. 12 Mbps Storage Less than 8 GB (1 partition type) Compatible Device Mass storage class (except HDD) Compatible File System FAT 32/16/12 Playable Audio Format MP3/WMA Max. Current 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 × 160 mm Panel Size (approx.) 188 mm × 58 mm × 13 mm Mass (approx.) 1.3 kg (excluding accessories)

Page 2

(No.MA377)1-3 KD-G447/KD-G357 Design and specifications are subject to change without notice.AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel Continuous Power Output (RMS) Front/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 ±12 dB at 60 Hz Middle ±12 dB at 1 kHz Treble ±12 dB at 10 kHz Frequency Response 40 Hz to 20 000 Hz Signal to Noise Ratio 70 dB Other Terminals AUX (auxiliary) input jack, USB input jack TUNER SECTION Frequency Range FM1/FM2 87.5 MHz to 108.0 MHz FM3 65.00 MHz to 74.00 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/Selectivity 20 µV/35 dB LW Tuner Sensitivity 50 µV CD PLAYER 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 320 kbps USB SECTION USB Standard USB 1.1, USB 2.0 Data Transfer Rate (Full Speed) Max. 12 Mbps Storage Less than 8 GB (1 partition type) Compatible Device Mass storage class (except HDD) Compatible File System FAT 32/16/12 Playable Audio Format MP3/WMA Max. Current 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 × 160 mm Panel Size (approx.) 188 mm × 58 mm × 13 mm Mass (approx.) 1.3 kg (excluding accessories)