Yamaha htr-5890 Руководство по эксплуатации - Страница 26

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HTR-5890

9. MANUAL TEST

The noise generator with a built-in DSP outputs the test

noise through the channels specified by the sub-menu.

The noise frequency for LFE is 35 to 250 Hz. Other than

that, the center frequency is 800Hz.

TEST ALL

Noise is output from all channels.

TEST FRONT R

Noise is output from the FRONT R channel.

TEST SURROUND BACK L

Noise is output from the SURROUND

BACK L channel.

TEST PRESENCE R

Noise is output from the PRESENCE R

channel.

10. RS-232C

This menu is used to check transmission of the data

and the flow port of the hardware.

With the power turned off, short between pins No.2

(RxD) and No.3 (TxD), and between pins No.7 (RTS)

and No.8 (CTS) of the RS-232C terminal. (Be sure to

turn off the power when shorting the pins.)

Start DIAG and select the menu.

There are two sub-menu items.

RxD

TxD/RxD DATA

The sub-menu is used to check transmission of the test

data. "OK" appears when the data is transmitted properly

and "NG" when it is not.

In this mode, NULL command transmission is continued

after the test command is transmitted.

TEST FRONT L

Noise is output from the FRONT L channel.

TEST SURROUND R

Noise is output from the SURROUND R

channel.

TEST SURROUND L

Noise is output from the SURROUND L

channel.

TEST LFE

Noise is output from the SUB

WOOFER channel.

TxD

RTS CTS

TEST CENTER

Noise is output from the CENTER

channel.

TEST SURROUND BACK R

Noise is output from the SURROUND

BACK R channel.

TEST PRESENCE L

Noise is output from the PRESENCE L

channel.

HARD FLOW

This sub-menu is used to check operation of the flow port

of the hardware. "OK" appears when the check result is

satisfactory and "NG" when it is not.