Jvc KDG 635 Service Manual
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Extracted text from Jvc KDG 635 Service Manual (Ocr-read)
Page 1
JVB
SERVICE MANUAL
CD RECEIVER
KD-G631E,KD-G631 EX,KD-G631 EU,
KD-G631 EY,KD-G632E,KD-G632 EX,
KD-G632EU,KD-G632EY,KD-G635U,
KD-G635UN,KD-G635UH,KD-G635UT,
WMA MP3 (for europe)
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
er used in the board (material : Sn-Cu, melting point: 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTIONS ....................................................................... 1-3
2 SPECIFIC SERVICE INSTRUCTIONS ...................................................... 1-6
3 DISASSEMBLY ....................................................................... 1-7
4 ADJUSTMENT ....................................................................... 1-10
5 TROUBLESHOOTING ................................................................. 1-11
COPYRIGHT © 2007 Victor Company of Japan, Limited No_MA292
2007/1
Page 2
SPECIFICATION
AUDIO AMPLIFIER SECTION
Maximum Power Output
Front/Rear
50 W per channel
Continuous Power Output
(RMS)
Front/Rear
19 W per channel into 4 Q, 40 Hz to 20 000 Hz at no more than 0.8% total har-
monic distortion.
Load Impedance
4 £2 (4 £2 to 8 Q allowance)
Tone Control Range
Bass 112 dB at 60 Hz
Mid-range 112 dB at 1 kHz
Treble 112 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 k9 load (full scale)
Output Impedance 1 kn
Other Terminals
CD changer, Steering wheel remote input, USB input jack
TU
NER SECTION
Frequency Range
FM
87.5 MHZ to 108.0 MHZ
AM (for europe)
MW: 522 kHz to 1 620 kHZ
LW: 144 kHZ to 279 kHz
AM (for asia)
531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 pV/75 S2)
50 dB Quieting Sensitivity 16.3 dBf (1.8 uV/75 9)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
MW Tuner (for europe) Sensitivity/Selectivity 20 pV/35 dB
LW Tuner (for europe) Sensitivity 50 pV
AM Tuner (for asia) Sensitivity 20 pV
Selectivity 35 dB
CD PLAYER I 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 H210 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 x H x D)
(approx.)
Installation Size
182 mm><52 mm><150 mm
Panel Size
188mm><58 mm><12mm
Mass
1.4 kg (excluding accessories)
Design and specifications are subject to change without notice.
1-2 (N0.MA292)