JVC KS-LX200R service manual BA4905-V3 IC961 Regulator

Page 2

KS-LX200R

Description of major ICs

BA4905-V3 (IC961) : Regulator

1.Pin layout

1

2

3

4

5

6

7

8

9

10

11

12

 

 

 

 

 

2.Block diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REGULATOR

 

 

EXT

 

 

 

 

 

 

 

 

 

 

 

Overvoltage protection circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

37K

 

RESET

 

 

 

 

 

 

 

 

 

 

 

 

5K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

3

 

4

5

 

6

 

7

8

9

10

11

12

RESET

 

 

COMP

 

 

VDD 5.7V

 

CD 8V

 

VCC

 

AJ

 

 

 

EXT

 

 

ACC

 

AUDIO 9V

 

CTRL

 

ILM 10V

 

GND

3.Pin function

Pin no.

Symbol

Function

 

 

 

1

RESET

If VDD voltage becomes 4V or less.RESET output becomes low level.

2

EXT output

This output voltage is approximately 0.5V lower than VCC. and max

 

 

output current is 300mA.

3

COMP output

A voltage supply for ACC block. This output voltage is approximately

 

 

0.7V lower than VDD'S. The max output current is 100mA.

4

ACC

Control of the COMP output by inputting voltage.

5

VDD output

This output voltage is 5.7V, and max output current is 100mA.

 

 

This voltage supply is for microcomputer. Whenever back up voltage

 

 

supply is connected, the output keeps on running.

6

AUDIO output

This output voltage is 9.0v, and max output current is 500mA.

 

 

This voltage supply for AUDIO.

7

CD output

This output voltage is 8.0V, and max output current is 1A.

 

 

This voltage supply for CD.

8

CTRL

Output selector of CD. AUDIO, ILM and EXT.

9

VCC

To be connected with the BACK UP of car.

10

ILM output

This output voltage is 10V, and max output current is 500mA.

 

 

Output voltage is adjustable.

11

AJ

Putting a resistance between ILM and AJ or between AJ and GND

 

 

makes ILM output voltage adjustable.

12

GND

Ground.

1-17

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Contents KS-LX200R BA4905-V3 IC961 Regulator CXA2510AQ IC401 Head AMP / Dolby NJM4565M-W IC951,IC171,IC323 Ope amp KA3031 IC831 Motor driver BU4066BCF-X IC322 Switch UPD784215AGC113 IC701 Unit CPU DM1 PowerDM0 LocalBD3860K IC911 E. volume LA3460M-X IC31 FM noise canceller & Stereo MPX demodulator LA4743B IC941 Power amp LC75873NW IC601 LCD driver BA3220FV-X IC301 Driver SDA BR24C32F-X IC703 EepromSCL IC-PST600M/G/-W IC702 System reset SAA6579T-X IC51 RDS demodulatorAGC RPM6938-SV4 IC602 Remote control receiverHD74HC126FP-X IC771 Buffer AMPVCA M5282FP-XE IC321 E. volumeLB1641 IC402 DC Motor driver VCA OUTBlock diagram Standard schematic diagrams Main amp. sectionMecha. control section DTC114EKALCD & Key control section INV
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KS-LX200R specifications

The JVC KS-LX200R is a versatile car audio receiver that combines advanced technology with user-friendly features, ensuring an elevated listening experience for audiophiles and casual listeners alike. This model is celebrated for its sleek design and powerful performance, making it an ideal addition to any vehicle.

One of the standout features of the KS-LX200R is its high-performance audio technology. It boasts a built-in amplifier capable of delivering up to 50 watts per channel, producing crystal-clear sound with minimal distortion. The unit supports various digital audio formats, allowing for compatibility with a wide range of media sources. Additionally, the receiver is equipped with a 13-band equalizer, enabling users to fine-tune the audio output to match their personal preferences and optimize sound quality according to the car’s acoustics.

Connectivity is at the forefront of the KS-LX200R's design. It features Bluetooth technology for hands-free calling and seamless wireless audio streaming from smartphones and other Bluetooth-enabled devices. The ability to pair multiple devices ensures that passengers can easily share their favorite music without tedious reconnections. Furthermore, the receiver includes USB and AUX inputs, giving users additional options for connecting their devices.

The KS-LX200R also accommodates various media formats, including CD, MP3, and WMA playback, ensuring that users can enjoy their entire library of audio content. The convenient front-facing USB port supports charging while listening, making it practical for long drives.

In terms of visual appeal, the KS-LX200R features a vibrant LCD display that provides clear visibility of track information and settings, even in bright sunlight. The user interface is intuitively designed, allowing quick access to various functions and settings, enhancing the overall user experience.

Moreover, the JVC KS-LX200R is built with durability in mind. It is designed to withstand the rigors of daily use in a vehicle environment while maintaining optimal performance. The receiver is compatible with steering wheel control interfaces, enabling users to operate the unit without taking their hands off the wheel for added safety.

Overall, the JVC KS-LX200R stands out as a feature-rich car audio receiver that seamlessly blends quality sound, modern convenience, and robust build quality, making it an excellent choice for any automotive sound system upgrade.
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