!￿￿￿￿￿￿￿￿￿￿￿￿￿￿

1.To turn on the keyboard, set POWER/

MODE to NORMAL. The POWER/MODE indicator lights. ￿

2.To hear a sample of the keyboard’s many sounds, play a prerecorded tune (see “Playing the Prerecorded Tunes”). To make your own music, simply begin playing the keyboard.

3.Repeatedly press VOLUME ￿ or ￿ to increase or decrease the volume. The current setting appears.

4.To turn off the keyboard, set POWER/ MODE to OFF. The POWER/MODE indicator turns off.

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To save power when operating on batteries, the keyboard automatically turns off after about 6 minutes if you do not press a key. To turn on the keyboard again, set POWER/ MODE to OFF then back to NORMAL.

To remind you that the keyboard is turned on, if the keyboard is connected to an AC adapter, it automatically turns off the sound after about 6 minutes if you do not press a key. The keyboard silently “plays” song 99 (“Fur Elise”). The keys play the song to light, but you hear no sound. To turn the sound back on, press any button or key.

To set the keyboard so it does not auto- matically turn off or enter power on alert mode, turn on the keyboard while holding down TONE.

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Basic Operation

The keyboard automatically selects the tone GRAND PIANO (No. 00) when you turn the power on. To select a different tone, see “Selecting/Playing a Preset Tone”.

To select an auto-rhythm, see “Percussion Sounds” on Page 6.

To play auto accompaniment, see “Using Auto Accompaniment” on Page 6.

The keyboard’s volume ranges from 0 (no sound) to 9 (maximum). Each time you turn on the keyboard, the volume is set to 7.

To quickly change the volume setting, hold down VOLUME ￿ or ￿.

To quickly return to the default volume setting of 7, press VOLUME ￿ and ￿ at the same time.

The volume level differs depending on the tone, accompaniment, or song you selected.

Playing the Prerecorded Tunes

￿￿￿￿￿￿ ￿￿￿￿￿￿￿￿￿￿￿￿￿"￿"￿￿￿￿￿￿

• To practice or play along with the

prerecorded tunes, see “Using Lesson

You can sit back and listen to the 100 tunes that come prerecorded in the keyboard. The keyboard’s keys light to indicate the melody notes of the tune as it plays. ￿

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￿￿￿￿￿￿￿￿￿￿￿￿￿

1.Press SONG. The SONG indicator lights and the number of the current tune appears.

2.Choose a tune from the 100 SONGS

list and enter its two-digit number on the keypad. ￿

3.Press START/STOP to start playing the tune. ￿

4.Use VOLUME ￿ or ￿ to adjust the overall volume as desired.

5.To stop playing the tune, press START/ STOP again.

6.To stop playing back any tunes, press SONG again.

￿￿￿￿￿￿￿￿￿%￿￿￿￿￿￿￿￿￿￿ ￿

!￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿

To play all 100 prerecorded tunes con- secutively, press DEMO. The keyboard plays the tunes in sequence until you turn off the keyboard.

To stop playing back all the tunes, press DEMO again.

Mode” on Page 8.

• Precede a single-digit number with a 0. For

example, to select 07 (“I Just Called To Say

I Love You”), press 0 7.

• You cannot use the preset auto-rhythms

while a prerecorded tune is playing. To play

a rhythm, press SONG to exit the song

mode first.

Using the Preset Tones

• The keyboard has 12-note (maximum)

polyphonic sound. This means that you can

play up to 12 different notes at the same

time with most of the keyboard’s preset

tones. Some tones are only capable of 6-

note polyphony.

• Most tones on this keyboard have been

recorded and processed using a technique

called digital sampling. To ensure a high

level of tonal quality, samples are taken in

the low, mid, and high ranges and are then

Basic Operation

￿￿￿￿ ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿

combined to sound amazingly close to the

originals. You might notice very slight

Your keyboard can sound like 100 different musical instruments or sound effects. The TONES list on the keyboard’s top panel shows the name and two-digit number for each preset tone.￿

￿￿￿￿￿￿￿￿ ￿￿￿￿￿￿￿ ￿￿￿￿￿￿￿￿￿￿

￿￿￿￿

1.Press TONE. The TONE indicator lights and the current tone’s number appears. ￿

2.To play a different tone, choose a preset tone from the 100 TONES list and enter its two-digit number on the

keypad. As you press the keys, the selected digits appear. ￿

3.Play the keyboard to hear the selected tone and adjust VOLUME ￿ or ￿ to the desired level.

4.To select a different tone, repeat Steps 1 and 2.

￿￿￿￿￿￿"￿￿￿￿￿￿

The preset tones numbered 80 through 89 on your keyboard let you automatically play two different layered tones at the same time when you press one key. For example, STRINGS PIANO (No. 80) plays string and piano tones when you press a key.

￿￿￿!￿￿￿"￿￿￿￿￿￿￿￿￿￿￿￿

The preset tones numbered 90 through 96 on your keyboard let you automatically play two different musical instruments or sound effects independently on opposite sides of the keyboard.

The instrument listed first in the tone’s name plays on the left half of the keyboard (below middle C). The instrument listed next plays on the right half of the keyboard (above middle C). For example, BASS/PIANO (No.

90)plays a bass tone on the left half of the keyboard and a piano tone on the right.

differences in volume or sound quality for

some tones when you play them at different

positions on the keyboard. This is an

unavoidable result of multiple sampling and

is not a malfunction.

• Some sound effect tones, such as

PERCUSSION (No. 99), do not follow the

musical scale when played, but change

effect as you play them in different octaves

on the keyboard.

Selecting/Playing a Preset Tone

Each time you turn the keyboard on, it automatically selects the tone GRAND PIANO (No. 00).

Precede a single-digit number with a 0. For example, to select ELEC PIANO 1 (No. 04), press 0 4.

If you enter an incorrect first digit, press TONE to clear your entry, then enter the correct digit.

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Image 5
Radio Shack LK-1161 owner manual Basic Operation, Playing the Prerecorded Tunes, Using the Preset Tones

LK-1161 specifications

The Radio Shack LK-1161 is a notable entry in the realm of personal computing, particularly recognized for its balance of affordability and functionality. Released in the early 1980s, the LK-1161 was a powerful home computer that captured the attention of tech enthusiasts and casual users alike.

One of the standout features of the LK-1161 was its keyboard design, which catered to users looking for an efficient and pleasant typing experience. The integrated keyboard not only streamlined the design of the computer but also provided tactile feedback that many found appealing. This made the LK-1161 a popular option for those who required a reliable interface for programming and word processing.

The LK-1161 was powered by a robust Zilog Z80 microprocessor, a popular choice in many 8-bit computers of that era. This processor enabled the computer to handle various software applications efficiently, making it suitable for both home and educational use. With a clock speed of 4 MHz, users could enjoy a responsive system capable of multitasking between simple applications.

In terms of memory, the LK-1161 was equipped with 64KB of RAM, expandable to higher capacities with additional modules. This flexibility allowed users to adapt the computer to their needs, install more advanced software, or handle larger projects. The built-in BASIC programming language also provided a foundation for users to explore coding, making the LK-1161 a popular choice among budding programmers.

The graphics capabilities of the LK-1161 were modest compared to modern standards but were acceptable for its time. With support for several display modes, users could enjoy text and simple graphics, making the computer suitable for early gaming experiences and educational software.

Storage options included a built-in cassette interface for loading and saving programs, and users could also connect external floppy disk drives to enhance storage capabilities. This adaptability made it easy for users to manage data and software without relying solely on cassette tapes.

Connectivity was another strong point, with RS-232 serial ports allowing users to connect printers and modems. This facilitated data transfer and made it easier to print documents or connect to bulletin board systems.

Overall, the Radio Shack LK-1161 emerged as a versatile computing solution in its era, offering a way for individuals to engage with technology. With its blend of operational efficiency, user-friendly design, and expandability, it remains a memorable piece of computing history, symbolizing the early days of personal computing and its journey towards the modern era.