Question about Sony TA-E9000ES Amplifier
The lcd light? is not working. Can this be fixed and is it expensive?
Hi John. It can be fixed, and most probably relates to the power supply. There is a Sony repair doc that lists low or no display, but also associated with no audio.
Here is the information regarding the problem.
The power supply is the main culprit for most of the TA-E9000ES failures. Symptoms of this are no sound and a very dim or no display. Apparently the power board has several weaknesses which have caused Sony to supply a modified version in later production units.The circuit around transistors Q108 and Q109 are prone to oscillation, which will cause one or both transistors to break down, as well as resistor R124. This resistor is originally a surface mounted device capable of 1/10 watts of heat dissipation. The modification suggested by Sony is to replace this 4.7 k ohm resistor with a 1 watt rated version. Also, to prevent further oscillations a 100 pF capacitor is added in parallel with R153.
(Some suggests that also transistor Q110 is a candidate for replacement.)
The US issued service bulletin from Sony suggest that this fault may occur with units having a serial number in the range 800001 - 802746.
If you still have sound, then there may well be a problem elsewhere. It is a great Preamp, and I recommend you get it fixed. A Sony Authorised service center would be the best place to take it. They supply good inside information about this most problems that occur on their gear. There is good info on your preamp controller here
Posted on Feb 08, 2009
Saya pnya problem sony p910,,,lampu lcd gak nyala...
Posted on May 09, 2011
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Posted on Jan 02, 2017
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