Jvc KDG 351 EX Service Manual

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Jvc KDG 351 EX Service Manual

Extracted text from Jvc KDG 351 EX 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)

Page 5

1-6 (No.MA377) KD-G646/KD-G645 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 Mid-range ±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 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 Terminal AUX (auxiliary) input jack, USB input jack TUNER SECTION Frequency Range FM 87.5 MHz to 108.0 MHz AM 531 kHz to 1 602 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 AM Tuner Sensitivity/Selectivity 20 µV/35 dB 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) (approx.) Installation Size 182 mm × 52 mm × 160 mm Panel Size 188 mm × 58 mm × 6 mm Mass 1.3 kg (excluding accessories)

Page 22

(No.MA377)1-23 3.2.13 Removing the loading roller assembly (See Figs.19 to 21) - Remove the top cover, base board, chassis unit, clamper assembly and top plate assembly. (1) From the left side of the chassis unit, remove the screw J attaching the lock arm assembly. (See Fig.19.) (2) Remove the projection ap of the lock arm assembly from the joint aq while opening the cam plate R in the direction of the arrow. (See Fig.19.) (3) Remove the lock arm assembly from the projection ar of the chassis unit. (See Fig.19.) (4) Remove the projection as of the lock arm assembly from the joint at of the cam plate L assembly. (See Fig.19.) (5) From the right side of the lock arm assembly, remove the loading roller spring L from the section au. (See Fig.20.) (6) From the top side of the lock arm assembly, remove the loading roller spring R in the direction of the arrow and remove the loading roller assembly. (See Fig.2 0. ) (7) Remove the roller guide R, HL washer and roller guide L from the both ends of the loading roller assembly. (See Fig.21.) Fig.19 Fig.20 Fig.21 aq ap at as ar Cam plate L assembly Cam plate R Chassis unit Lock arm assembly J auLoading roller spring L Loading roller assembly Loading roller spring R Lock arm assembly Roller guide L Roller guide R HL washer Loading roller assembly