Jvc KDSHX 851 Service Manual

Page 1

JVC

SERVICE MANUAL

CD / SD RECEIVER

KD-SHX851

Area suffix
E ..- - Southern Europe
EX . -- Northern Europe
EY . --- Eastern Europe

comm-.1

5': @R-D-s LEE Mgr:

Lead free solder used in the board (material : Sn-Ag-Cu, melting point: 219 Centigrade)

TABLE OF CONTENTS

1 PRECAUTIONS ....................................................................... 1-3
2 SPECIFIC SERVICE INSTRUCTIONS ..... .. 1-6
3 DISASSEMBLY ...................... . . 1-7
4 ADJUSTMENT ....................................................................... 1-22
5 TROUBLESHOOTING ................................................................. 1-29
COPYRIGHT © 2005 Victor Company of Japan, Limited No_MA192

2005/6

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SPECIFICATION

AUDIO AMPLIFIER SECTION

Maximum Power Output Front 70 W per channel
Rear 70 W per channel
Continuous Power Output (RMS) Front 35 W per channel into 4 £2, 40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion.
Rear 35 W per channel into 4 Q, 40 Hz to 20 000 Hz at no more than 0.8% total

harmonic distortion.

Load Impedance

4 Q (4 Q to 8 Q allowance)

Equalizer Control Range Frequencies : Graphic E0

63 HZ, 125 HZ, 250 Hz, 500 Hz,1 kHz, 2 kHz, 4 kHz, 8 kHz, 12.5 kHZ
(9 bands)

Frequencies : Parametric E0

3 bands (Band 112/3)

20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 HZ, 80 HZ,100 Hz,125 Hz,
160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz,

1 kHz, 1.2 kHz, 1.6 kHz,2 kHz, 2.5 kHz, 3.2 kHz, 4 kHz, 5 kHz, 6.3 kHz,
8 kHz, 10 kHz, 12.5 kHz, 16 kHz, 20 kHz (31 frequencies)

Level :10 dB
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-In Level/Impedance LINE IN 1.5 V120 k0 load
Line-Out Level/Impedance LINE OUT 5.0 V120 k9 load (full scale)
Output Impedance 1 kg
Power Supply Unit DC/DC converter
Other Terminals SUBWOOFER OUT Changer control, 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 LIV/75 Q)
50 dB Quieting Sensitivity 16.3 dBf(1.8 uV/75 (2)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
Capture Ratio 1.5 dB
MW Tuner Sensitivity 20 (N
Selectivity 65 dB
LW Tuner Sensitivity 50 (N
CDISD 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 98 dB
Signal-to-Noise Ratio 102 dB
Wow and Flutter Less than measurable limit
MP3 (MPEG Audio Layer 3) Max. Bit Rate 320 kbps
WMA (Windows Media Audio) Max. Bit Rate 192 kbps
Playable SD Card Format FAT 12/16
Storage Up to 512 MB
Playable Audio Format for SD Card MP3/WMA
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) Installation Size (approx.)

182 mm X52 mm>< 159 mm

Panel Size (approx)

188 mm><58 mm><13 mm

Mass (approx)

1.7 kg (excluding accessories)

- Design and specifications are subject to change without notice.
' Microsoft and Windows Media are either registered trademarks or trade
- SD logo is a trademark.

1-2 (N0.MA192)

marks of Microsoft Corporation in the United States and/or other countries.