Yamaha QL5 Manual page 34

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Table of Contents

QL5/QL1

1-10. WORD CLOCK Test

Contents Checks WORD CLOCK OUT → IN automatically

by counting it at PLLPU.

(Fs=44.1/48 kHz) Checks PLL LOCK by reading the

UNLOCK signal when the clock has been stabilized

after the Fs change (after about 200 ms).

Example of executing screen

Various Fs (frequencies) for the PLL LOCK check are generated

in Internal Clock of FPGA.

Fs = 44.1 kHz, 48 kHz

During the UNLOCK check, a message will appear indicating

to disconnect the WORD CLOCK cable as shown below. Then

disconnect the BNC cable.

134

1-11. AES/EBU(OUT) test

Contents Checks by the sound with the speaker connected.

Refer to the 128 page for a connection method.

Example of executing screen

Check if 1 kHz sine wave is heard from the speaker. If it is

heard, input OK and if not, input NG using the dialog box.

1-12. MIDI test

Contents Checks if the data output to the MIDI terminal and

the loopback data received are the same.

Refer to the 128 page for a connection method.

Example of executing screen

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Ql1