JVC KD-LX555R Defp, Ina, Inb, Inc, Ind, Defn OUT, Sel Out, Vol, Tone OUT, Fader, Rear OUT1

Page 13

• Pin function

Pin No.

Symbol

Function

 

 

 

1

REF

IC signal GND

 

 

 

2

DEFP IN 1

Ope amp positive input

 

 

 

3

DEFN IN 1

Ope amp negative input

 

 

 

4

INA 1

Input selector ch1 input terminal

 

 

 

5

INB 1

Input selector ch1 input terminal

 

 

 

6

INC 1

Input selector ch1 input terminal

 

 

 

7

IND 1

Input selector ch1 input terminal

 

 

 

8

DEFN OUT 1

Operation outoutterminal (-)

 

 

 

9

SEL OUT 1

Input selector output terminal

 

 

 

10

VOL IN 1

Volume 1 input terminal

 

 

 

11

TONE OUT 1

Tone output terminal

 

 

 

12

FADER IN 1

Volume 2 input terminal

 

 

 

13

REAR OUT1

Fader volume (rear) output terminal

 

 

 

14

FRONT OUT 1

Fader volume (front) output terminal

 

 

 

15

NonFadaer OUT 1

Non fader volume output terminal

 

 

 

16

GND

GND

 

 

 

17

DATA

Control data input terminal

 

 

 

18

VDDOUT 1

Connect to GND with capacitor

 

 

 

19

VDDOUT 2

Connect to GND with capacitor

 

 

 

20

CLOCK

Serial data clock input terminal

 

 

 

21

VDD

VDD for digital

 

 

 

22

NonFadaer OUT 2

Non fader volume output terminal

 

 

 

23

FRONT OUT 2

Fader volume (front) output terminal

 

 

 

24

REAR OUT2

Fader volume (rear) output terminal

 

 

 

25

FADER IN 2

Volume 2 input terminal

 

 

 

26

TONE OUT 2

Tone output terminal

 

 

 

27

VOL IN 2

Volume 1 input terminal

 

 

 

28

SEL OUT 2

Input selector output terminal

 

 

 

29

DEFN OUT 2

Ope amp output terminal (-)

 

 

 

30

IND 2

Input selector switch ch2 input terminal

 

 

 

31

INC 2

Input selector switch ch2 input terminal

 

 

 

32

INB 2

Input selector switch ch2 input terminal

 

 

 

33

INA 2

Input selector switch ch2 input terminal

 

 

 

34

DEFN IN 2

Ope amp negative input terminal

 

 

 

35

IEFP IN 2

Ope amp positive input terminal

 

 

 

36

VCC

VCC for analog

 

 

 

(No.49793)1-43

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Contents Area Suffix KD-LX555RBA6956AN IC830, IC831 Reversible motor driver SCL SDA GND A2 GNDBR24C01AFV-W-X IC1502 Eeprom GNDGND VCC SCL SDAAddress Data DecoderVDD1 Rclk VSS3 CMP MUXQual VDD2HA13164A IC961 Regulator HD74HCT126T-X IC1500,IC1503 Buffer LA47505 IC941 Power amp Outfr AC CONT1Stby OUTFR+VCCP2 VIN4 VIN4G VIN1-A VIN1+A VCCP1 VO+VIN1 VIN1-BVIN1+A VIN1-AVCCP1 VCCP2Front OUT 2 Volume Rear OUT2 Rear OUT1 Soft Timer GND VDD Select DetectorVDD OUT Clock DataDefn DefpINA INB11 LC75878W IC601 LCD driver Aoutput Input +INPUT Output GND STB VIN Vout12 NJM4565V-X IC1572 Dual ope amp 13 NJU7241F25 IC1651 RegulatorPIN SEL TEB Rfgc Vctrlpin APC SW TE BAL 15 TA2157FN-X IC1601RF ampVCC APC on APC OFFGND OFF SEL APC LDOGvsw GND CD-RW16 TC94A14FA IC1621 DSP & DAC AVSS3 PVDD350 No.49793 Vddt ResetStanby Vssl18 UPD784217AGC208 IC962 Main micon Buzzer Power12CDAI 12CDAO19 UPD784225GK-629 IC1501 CPU Test Mode MP3 ResetMP3 STB DAC ML20 PCM1716E-X IC1571 D/A converter Block diagram Standard schematic diagrams CD servo control section LCD & Key control section KD-LX555R Electrical parts listRK104JA0J Resistor Front board CD board RK822JA0J COMP.RESISTOR RK303JA0J COMP.RESISTOR
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Manual 58 pages 46.53 Kb

KD-LX555R specifications

The JVC KD-LX555R is a feature-rich car stereo receiver that combines cutting-edge technologies with an impressive array of functionalities, making it a popular choice among car audio enthusiasts. One of the standout features of the KD-LX555R is its compatibility with various audio playback formats, including MP3, WMA, and WAV files. This versatility allows users to enjoy their favorite music from different sources without compromising on sound quality.

Equipped with a front AUX input and a USB port, the KD-LX555R facilitates convenient connectivity for external devices like smartphones and USB drives. This feature enables users to access their digital music collections seamlessly while driving. Additionally, the unit's Bluetooth capability allows for hands-free calling and wireless audio streaming, enhancing convenience and safety by minimizing distractions while driving.

The receiver boasts a sleek and modern design, featuring an easy-to-read LCD display and user-friendly controls. The customizable illumination options enable users to match the display color to their vehicle’s interior, adding a personalized touch. Its ergonomic layout ensures that drivers can adjust settings and navigate menus with minimal effort, allowing for a safer driving experience.

Sound quality is a paramount consideration for JVC, and the KD-LX555R does not disappoint. It features a powerful MOSFET amplifier, delivering robust audio performance with impressive clarity and depth across all frequencies. The inclusion of a 3-band parametric equalizer also allows users to fine-tune the audio output according to their preferences and the acoustics of their car.

For those who desire even more control over their sound, the KD-LX555R supports additional amplifiers and subwoofers through its preamp outputs. This feature empowers users to easily upgrade their sound systems and achieve the desired audio experience. Moreover, the receiver integrates seamlessly with smartphones, enabling features like music control through voice commands.

In summary, the JVC KD-LX555R is a comprehensive car audio solution that emphasizes connectivity, sound quality, and user convenience. With its modern features, robust performance, and customizable options, it caters to a wide range of audio preferences, making it a worthy addition to any car. Whether enjoying favorite tracks or making hands-free calls, the KD-LX555R delivers an exceptional in-car experience that combines technology with practicality.
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