Turn the volume down to less than half.
Try each of the input select switches, and make sure the monitor switch is in the proper position,
If you have not used this stereo before, make sure the jumpers are connected on the back of the unit from PRE OUT to MAIN IN.
(If it was working OK and now it is not, the connectors on the back are fine..)
Thanks, those jumpers were missing.
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SOURCE: Technics SU-V2 keeps cutting out
An amp will cut out if the output protection circuit kicks in. This circuit compares output power against the preset level. Each channel has it's own, independent protector. There are calculations that can be done, but for a novice the rule of thumb is to "never use a speaker with a power rating less than the amp AND a lower impedance than stated". Typically using a 4 ohm load on a 8 ohm system is inviting disaster. Even if the system does not become a smoke generator, you might notice that though "louder", the sound quality is deteriorated. Many "audiophiles" often hook up some combinations of speakers to have "surround" without really understanding that the collective impedance actually changes (generally lowers).
SOURCE: amp cuts out
The fan is ageing and putting noise on the protect line. Replace it or put a 100 uf cap across the fan at the plug. Beware polarity is marked wrong on p.c.b.
SOURCE: Technics SH-AC300 Connection to Power Amp & Pre-Amp
Hi!
The problem is, that your SH-AC300 needs an amp with 5.1 input (but no decoder). For this purpose technics delivered SA-AX710.
So if you'd like to use your current equipment it would be impossible.
The only option is for you to buy 2 more Power Amps (SE-A900S), so that each of 3 amps would take care for one part of music. (one for FL, FR; one for RL, RR; and one for sub and center).
Another option is for you to buy SA-AX710. Then all the problems would be solved with it.
SOURCE: AUDIO PROBLEM FOR LAPTOP COMPAQ PRESSARIO 733TU
SIR I HAVE ISSUE THAT AUDIO IS WORKING FROM SPEAKERS BUT IF I CONNECT A HEADPHONE STILL THE VOLUME CUMS FROM SPEAKERS AND NOT FROM HEADPHONES.I HVE INSTALLED WINDOS XP 'OS'.
SOURCE: Erratic volume on Technics SU-X911 amplifier (Class A)
I have a technics su x911 linked to ars x911 and a sl pj26a and a st x 933l tuner and turntable, they are all linked to each other as is typical however, I can turn the amp on,the red light shows on and everything else will work but not the amp.there is no led display and no vulume control.
the set has not been used for many years but has been kept clean and dry.
do they have to be connected in a certain order, the remote control doesnt seem to make any difference.
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