Jvc KDG 279 UR Service Manual
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Extracted text from Jvc KDG 279 UR Service Manual (Ocr-read)
Page 1
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JVC
SERVICE MANUAL
CD RECEIVER
KD-G279UR
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COMPACT
DIGII'AL AUDID
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Miami
Lead free solder used in the board (material : Sn-Ag-Cu, melting point: 219 Centigrade)
TABLE OF CONTENTS
PRECAUTIONS ....................................................................... 1-3
SPECIFIC SERVICE INSTRUCTIONS ..........
DISASSEMBLY .................... . . . .
ADJUSTMENT ..........
TROUBLESHOOTING ................................................................. 1-11
COPYRIGHT © 2006 Victor Company of Japan, Limited No.MA266
2006/4
Page 2
SPECIFICATION
AUDIO AMPLIFIER SECTION
Power Output
17 W RMS x 4 Channels at 4 £2 and [< or =]1% THD+N
Signal to Noise Ratio
80 dBA (reference: 1 W into 4 Q)
Load Impedance
4 Q (4 Q to 8 Q 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
2.5 V/20 kQ load (full scale)
Output Impedance 1 k9
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 uV/75 Q)
50 dB Quieting Sensitivity 16.3 dBf (1.8 uV/75 0)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
Capture Ratio 1.5 dB
AM Tuner Sensitivity 20 [N
Selectivity 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: 192 kbps
GENERAL
Power Requirement Operating Voltage
DC 144 V (11 V to 16 V allowance)
Grounding System
Negative ground
Allowable Operating Temperature
0°C to +40°C
Dimensions (W X H X D) Installation Size (approx.)
182 mm><52 mm>< 150 mm
Panel Size (approx.)
188mm><58mm><11 mm
Mass (approx.)
1.2 kg (excluding accessories)
Design and specifications are subject to change without notice.
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