This is a powerful and well played amplifier. Pure and powerful sound. Great design and some of the buttons are made of steel.
I will recomand this beautiful thing to everybody. One of the best amplifier series from Technics. Reviewed Feb 10th, by uchu. I have a problem with my amplifier from technics. It is an SU-VX and the problem is that the sound gets distorted or cut when the volume is high.
Has anyone experienced the same problem and found a solution? VR and VH to minimum counterclockwise.
Alter setting the output to zero of the voltage controller, turn on the power switch of the unit. And increase the output of voltage controller gradually. Then, check carefully whether the current value of primary side become more than following value or whether the DC voltage of secondary side is increasing slowly. II the value of current is increasing unusually or the DC voltage is not increasing, lower the output level of voltage controller Immediately.
Confirm the power supply voltage ot each area and provided voltage of. The protection circuitry of the amplifier may have operated if either of the following conditions is noticed:. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are "shorted", or if speaker systems with an impedance less than the indicated rated Impedance of the amplifier are used. Determine the cause of the problem and correct it.
Turn on the power once again. When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? When the power transistor is replaced, be sure to apply silicone compound or equivalent thermal diffusion agent onto the mica plate, and at the same time confirm the idling current of the power transistor.
On the other hand, if the reading is over 25mV, cut off the lead wire for L in the case of left channel The lead wire for R in the case of right channel ,. Should the reading not fall under 25mV even when the lead Wire has been Cut off, there is something wrong with the circuit, and therefore, check the power source Circuit or main amplifier circuit.
B Current should be checked only when adjustment is made with a tester. If over 75mA, cut off the lead wire for L in the case of left channel The lead wire for R in the case of right channel.
We recommend the method 63 where possible. E Fig.
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