Yamaha DSP-AX1, Service Manual

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DSP-AX1/RX-V1
DSP-AX1/RX-V1
9. RS-232C
TxD/RxD DATA:XX
9. RS-232C
HARD FLOW :XX
8. MANUAL TEST
ALL
RxD
RTS CTS
TxD
1 2 3
6 7 8 9
4 5
8. MANUAL TEST
The test noise is output by the noise generator with a built-in DSP through the channels specified by the sub-menu.
There are ten sub-menu items.
ALL [Remote control code: 7A—00 (TAPE PLAY)]
Noise is output through all channels.
MAIN L [Remote control code: 7A—01 (TAPE RW)
Noise is output through the MAIN L channel.
CENTER [Remote control code: 7A—02 (TAPE FW)]
Noise is output through the CENTER channel.
MAIN R [Remote control code: 7A—03 (TAPE STOP)]
Noise is output through the MAIN R channel.
REAR R [Remote control code: 7A—04 (TAPE PAUSE)]
Noise is output through the REAR R channel.
REAR C [Remote control code: 7A—05 (TAPE MUTE)]
Noise is output through the REAR CENTER channel.
REAR L [Remote control code: 7A—06 (TAPE A/B)]
Noise is output through the REAR L channel.
FRONT L [Remote control code: 7A—07 (TAPE DIR A)]
Noise is output through the FRONT L channel.
FRONT R [Remote control code: 7A—08 (CD PLAY)]
Noise is output through the FRONT R channel.
LFE [Remote control code: 7A—09 (CD STOP)]
Noise is output through the LFE (sub-woofer) channel.
9. 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 pins.)
Start DIAG and select the menu.
There are two sub-menu items.
The signals are processed in the same way as EFFECT OFF under item 4. PRO LOGIC. (The L/R
signals are output using ANALOG MAIN BYPASS.)
TxD/RxD DATA
This 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.
HARD FLOW
This sub-menu is used to check operation of the flow port of the hardware. “OK” ap-
pears when the check result is satisfactory and “NG” when it is not.
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