Data Transmission

This instrument can use exclusive messages to exchange many varieties of internal settings with other devices.

The model ID of the exclusive messages used by this instrument is 00H 10H.

Data Request 1RQ1 (11H)

This message requests the other device to transmit data. The address and size indicate the type and amount of data that is requested.

When a Data Request message is received, if the device is in a state in which it is able to transmit data, and if the address and size are appropriate, the requested data is transmitted as a Data Set 1 (DT1) message. If the conditions are not met, nothing is transmitted.

Status

data byte

status

F0H

41H, dev, 00H, 10H, 11H, aaH, bbH, ccH,

F7H

 

ddH, ssH, ttH, uuH, vvH, sum

 

Byte

Remarks

 

F0H

Exclusive status

 

41H

ID number (Roland)

 

dev

device ID (dev: 10H - 1FH, 7FH)

 

00H

model ID #1 (XV-2020)

 

10H

model ID #2 (XV-2020)

 

11H

command ID (RQ1)

 

aaH

address MSB

 

bbH

address

 

ccH

address

 

ddH

address LSB

 

ssH

size MSB

 

ttH

size

 

uuH

size

 

vvH

size LSB

 

sum

checksum

 

F7H

EOX (End Of Exclusive)

 

*The size of data that can be transmitted at one time is fixed for each type of data. And data requests must be made with a fixed starting address and size. Refer to the address and size given in “Parameter Address Map” (p. 146).

*For the checksum, refer to (p. 159).

Data set 1

DT1 (12H)

 

Status

Data byte

Status

F0H

41H, dev, 00H, 10H, 12H, aaH, bbH,

F7H

 

ccH, ddH, eeH, ... ffH, sum

 

Byte

Explanation

 

F0H

Exclusive status

 

41H

ID number (Roland)

 

dev

Device ID (dev: 00H - 1FH, 7FH)

 

00H

Model ID #1 (XV-2020)

 

10H

Model ID #2 (XV-2020)

 

12H

Command ID (DT1)

 

aaH

Address MSB: upper byte of the starting address of the data to be sent

bbH

Address: upper middle byte of the starting address of the data to be

 

sent

 

ccH

Address: lower middle byte of the starting address of the data to be

 

sent

 

ddH

Address LSB: lower byte of the starting address of the data to be sent.

eeH

Data: the actual data to be sent. Multiple bytes of data are transmitted

 

in order starting from the address.

 

:

:

 

ffH

Data

 

sum

Checksum

 

F7H

EOX (End Of Exclusive)

 

*The amount of data that can be transmitted at one time depends on the type of data, and data will be transmitted from the specified starting address and size. Refer to the address and size given in “Parameter Address Map” (p. 146).

*Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each packet will be sent at an interval of about 20 ms.

*Regarding the checksum, please refer to (p. 159)

MIDI Implementation

MIDI Implementation

143

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Kenwood XV-2020 owner manual 143, Data Transmission, Data Request 1RQ1 11H, Data set DT1 12H

XV-2020 specifications

The Kenwood XV-2020 is a distinguished model in the realm of high-fidelity audio equipment, offering a blend of vintage charm and modern technology. Renowned for its powerful performance and exquisite sound quality, the XV-2020 appeals to audiophiles and casual listeners alike, making it a sought-after choice in the used market.

At the heart of the Kenwood XV-2020 is its robust amplifier section, delivering a significant output power that allows it to drive a variety of speakers effortlessly. With a power rating typically around 50 watts per channel (into 8 ohms), this receiver provides a rich, dynamic sound suitable for a wide range of musical genres. The amplifier is designed with a low total harmonic distortion, ensuring that the audio output remains clean and free from undesirable artifacts, even at high volumes.

The XV-2020 features a multi-source input configuration, allowing users to connect various audio sources such as CD players, turntables, and cassette decks. This versatility is complemented by its built-in phono stage, which means vinyl enthusiasts can connect their turntables directly without needing a separate preamp. The receiver also supports AM/FM radio, featuring a reliable tuner section that ensures excellent reception, allowing users to enjoy their favorite radio stations with clarity.

One of the standout features of the Kenwood XV-2020 is its tone control options. Users can fine-tune their listening experience with adjustable bass, midrange, and treble controls. This capability allows for customization according to individual preferences or room acoustics, making it easier to achieve the ideal sound profile.

Additionally, the XV-2020 incorporates a decoder for various surround sound formats, enhancing the listening experience for movies and music encoded in surround formats. This feature reflects Kenwood’s commitment to evolving audio technology, providing users with an immersive experience that traditional stereo systems often lack.

The build quality of the XV-2020 is another characteristic that sets it apart. Housed in a sturdy chassis with a minimalist aesthetic, it is not only functional but also an attractive piece of equipment that fits well in any home audio setup. With its user-friendly interface and comprehensive features, the Kenwood XV-2020 remains a popular choice for those looking to experience rich audio performance without compromising on style. Its combination of power, flexibility, and classic design solidifies its status as a beloved component in the world of audio receivers.