Yamaha DSP-A2 Owner's Manual - Page 73

Troubleshooting

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English TROUBLESHOOTING Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instruction below does not help, disconnect the power cord and contact your authorized YAMAHA dealer or service center. General Problem The unit fails to turn on when the STANDBY/ON switch is pressed, or turns into the standby mode suddenly soon after the power is turned on. This unit does not work normally. No sound or no picture. No picture The sound suddenly goes off. Only one side speaker outputs the sound. No sound from the effect speakers. No sound from the front effect speakers. No sound from the center speaker. Poor bass reproduction. Sound "hums". The volume level is low while playing a record. The volume level cannot be increased, or sound is distorted. Cause Power cord is not plugged in or is not completely inserted. The IMPEDANCE SELECTOR switch on the rear panel is not set to either end. There is an influence of strong external noise (lightning, excessive static electricity, etc.) or a misoperation on this unit while using this unit. Incorrect output cord connections. Appropriate input source is not selected. Speaker connections are not secure. Digital signals other than PCM audio and Dolby Digital (or DTS) encoded signals which this unit cannot reproduce are input to this unit by playing a CD-ROM etc. There is no S video terminal connection between this unit and the TV, though S video signals are input to this unit. The protection circuit has been activated because of short circuit etc. The SLEEP timer came on. Incorrect setting of the BALANCE control. Incorrect cord connections. The EFFECT button is set off. A Dolby Surround (or DTS) decoding program is being used with material not encoded with Dolby Surround (or DTS). The function "1E. SYS. SETUP" in the SET MENU mode is set to the "5ch" position. PRO LOGIC/Normal, DOLBY DIGITAL/ Normal or DTS DIGITAL SUR./Normal of the DSP program No. 12 is selected. The function "1A. CENTER SP" in the SET MENU mode is set to the "NONE" position. One of the DSP programs No. 1 to No. 7 is selected when the input signal of source is 2-channel stereo (analog/PCM). The input signals of source encoded with Dolby Digital or DTS do not have center channel signals. The function "1D. LFE/BASS OUT" in the SET MENU mode is set in the SW or BOTH position, though your system does not include a subwoofer. Output mode selection for each channel (MAIN, CENTER or REAR) is improper. Incorrect cord connections. No connection from the turntable to the GND terminal. The record is being played on a turntable with an MC cartridge. The component connected to the TAPE/MD OUT terminals of this unit is turned off. What to Do Firmly plug in the power cord. Set the switch to either end when this unit is in the standby mode. Turn this unit into the standby mode and disconnect the AC power cord from the AC outlet. After about 30 seconds have passed, connect the power and operate this unit again. Connect the cords properly. If the problem persists, the cords may be defective. Select the appropriate input source with the INPUT SELECTOR or the EXT. DECODER button. Secure the connections. Play a source whose signals this unit can reproduce. Connect this unit's S VIDEO MONITOR OUT terminal to the TV's S video input terminal. Turn this unit into the standby mode, and then turn on to reset the protection circuit. Cancel the SLEEP timer function. Adjust it to the appropriate position. Connect the cords properly. If the problem persists, the cords may be defective. Press the EFFECT button to turn it on. Use a different sound field program. Set to the "7ch" position. Select another program (or subprogram). Select the appropriate position. Select another program. Refer to the instructions for the source currently played. Select the MAIN position. Make output mode selections suitable for your speaker system. Firmly connect the audio plugs. If the problem persists, the cords may be defective. Make the GND connection between the turntable and this unit. The player should be connected to the unit through the MC head amplifier. Turn on the power to the component. 71

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71
English
Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the
instruction below does not help, disconnect the power cord and contact your authorized YAMAHA dealer or service center.
Problem
The unit fails to turn on when the
STANDBY/ON switch is pressed, or turns
into the standby mode suddenly soon after
the power is turned on.
This unit does not work normally.
No sound or no picture.
No picture
The sound suddenly goes off.
Only one side speaker outputs the sound.
No sound from the effect speakers.
No sound from the front effect speakers.
No sound from the center speaker.
Poor bass reproduction.
Sound “hums”.
The volume level is low while playing a
record.
The volume level cannot be increased, or
sound is distorted.
Cause
Power cord is not plugged in or is not
completely inserted.
The IMPEDANCE SELECTOR switch on the
rear panel is not set to either end.
There is an influence of strong external
noise (lightning, excessive static electricity,
etc.) or a misoperation on this unit while
using this unit.
Incorrect output cord connections.
Appropriate input source is not selected.
Speaker connections are not secure.
Digital signals other than PCM audio and
Dolby Digital (or DTS) encoded signals
which this unit cannot reproduce are input to
this unit by playing a CD-ROM etc.
There is no S video terminal connection
between this unit and the TV, though S
video signals are input to this unit.
The protection circuit has been activated
because of short circuit etc.
The SLEEP timer came on.
Incorrect setting of the BALANCE control.
Incorrect cord connections.
The EFFECT button is set off.
A Dolby Surround (or DTS) decoding
program is being used with material not
encoded with Dolby Surround (or DTS).
The function “1E. SYS. SETUP” in the SET
MENU mode is set to the “5ch” position.
PRO LOGIC/Normal, DOLBY DIGITAL/
Normal or DTS DIGITAL SUR./Normal of
the DSP program No. 12 is selected.
The function “1A. CENTER SP” in the SET
MENU mode is set to the “NONE” position.
One of the DSP programs No. 1 to No. 7 is
selected when the input signal of source is
2-channel stereo (analog/PCM).
The input signals of source encoded with
Dolby Digital or DTS do not have center
channel signals.
The function “1D. LFE/BASS OUT” in the
SET MENU mode is set in the SW or BOTH
position, though your system does not
include a subwoofer.
Output mode selection for each channel
(MAIN, CENTER or REAR) is improper.
Incorrect cord connections.
No connection from the turntable to the
GND terminal.
The record is being played on a turntable
with an MC cartridge.
The component connected to the TAPE/MD
OUT terminals of this unit is turned off.
What to Do
Firmly plug in the power cord.
Set the switch to either end when this unit is
in the standby mode.
Turn this unit into the standby mode and
disconnect the AC power cord from the AC
outlet. After about 30 seconds have passed,
connect the power and operate this unit
again.
Connect the cords properly.
If the problem
persists, the cords may be defective.
Select the appropriate input source with the
INPUT SELECTOR or the EXT. DECODER
button.
Secure the connections.
Play a source whose signals this unit can
reproduce.
Connect this unit’s S VIDEO MONITOR OUT
terminal to the TV’s S video input terminal.
Turn this unit into the standby mode, and
then turn on to reset the protection circuit.
Cancel the SLEEP timer function.
Adjust it to the appropriate position.
Connect the cords properly.
If the problem
persists, the cords may be defective.
Press the EFFECT button to turn it on.
Use a different sound field program.
Set to the “7ch” position.
Select another program (or subprogram).
Select the appropriate position.
Select another program.
Refer to the instructions for the source
currently played.
Select the MAIN position.
Make output mode selections suitable for
your speaker system.
Firmly connect the audio plugs.
If the
problem persists, the cords may be defective.
Make the GND connection between the
turntable and this unit.
The player should be connected to the unit
through the MC head amplifier.
Turn on the power to the component.
General
TROUBLESHOOTING