Casio CTK-711EX Service Manual

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■ RAM check
1. Press “3” button.
2. The program executes write/read test in all the RAM area.
3. When the RAM is proper, display indicates “RAM OK”.
If the RAM malfunctions, “RAM NG” is shown on the display.
4. When the RAM check is executed, other tests become unavailable.
5. Pressing any key performs “Bender reset” transaction described below.
■ Small sound output
1. Press “4” button.
2. The instrument emits a sound in small volume and indicates “MIN” on the display.
■ Medium sound output
1. Press “5” button.
2. The instrument emits a medium volume sound and indicates “MID” on the display.
■ Large sound output
1. Press “6” button.
2. The instrument emits a large volume sound and indicates “MAX” on the display.
■ Large sound left channel output
1. Press “7” button.
2. The instrument emits a large volume sound from the left speaker and indicates “L” on the display.
■ Large sound right channel output
1. Press “8” button.
2. The instrument emits a large volume sound from the right channel and indicates “R” on the display.
■ MIDI IN/OUT test
1. Connect MIDI IN and MIDI OUT terminals with a MIDI cable.
2. Press “9” button.
3. When the MIDI circuit is normal, display indicates “MIDI OK” whereas “MIDI ER” will be shown if the
MIDI circuit is abnormal.

Casio CTK-711EX Specifications

General

Brand	Casio
Model	CTK-711EX
Category	Electronic Keyboard
Language	English