Question about Yamaha DSPE390 Amplifier

2 Answers

Power suply no osolation on power suply i change regulator and other capacitor

Posted by zoilo on


2 Answers


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 236 Answers

Can you explain more of what is your concern? what help do you need.


Posted on Mar 19, 2008



  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

Osolation? What do you mean - isolation, or oscillation?

Posted on Sep 03, 2007


Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Bpl tv power suply more

Check those capacitors in video chroma section.

Jun 30, 2014 | Sony Televison & Video

1 Answer

Wont turn on

If your computer is in a loop boot the problem is clearly the chipset, but before being sure of it you have to disconet the memory cards and to change themfrom the slot try one at the time in slot 0 if the problem continues then 80% for sure is the chipset that needs to be changed. If your computer does not turn on then the problem is power suply, check the power suply inn maybe it is defectuose, or the starting capacitor is defective, hope tou solve the problem

Oct 22, 2011 | Acer Aspire One PC Notebook

1 Answer

I have waves running up my screen how do i fix that

depending on the waves if it is light dark bar rolling from bottom to top it may be a defective
capacitor in IF section or interference comming
for ex:defective neon sign leaky electric power transformer etc. If it is a slow moving
wave but no bars you have a defective power suply regulator and I don't suggest you try to fix it yourself

Sep 29, 2010 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

Gateway gt motherboard failure

Yeah that's right. Change/replace the power supply. Yet, you have to test the power supply's conditions if it still works alright. since you are suspecting both motherboard and HDD first. If yellow light comes and no action to the whole machine then that must be something in the motherboard. Before you finally follow your decision to change the power supply, check the motherboard. There are capacitors and examine if it didn't bloat. If it does, just take out the capacitors with exact microfarad and voltage specs or change the whole board. And granting though that the supply is bad, there must be some electric signals that have caused to the mother board which will eventually, at the end of the day, you encounter the same problem with it.

Jun 23, 2009 | Gateway GT4010 (RBGT4010) PC Desktop

1 Answer

TV frozen on standby

Power suply voltage might check good, but change the regulator in this unit partnumber is Ssr-9001a-M2

hope this helps.

Jan 12, 2009 | JVC AV-48P775 48" HDTV

1 Answer

Doesnt turn on anymore.

It's seems your backlight inverter is burnt out... need to be replaced with a new one or you can repaired yourself by testing all the capacitors to see which it has been burnt out or has a leaked. After that just replaced the bad caps... Good lucks, Have nice a day!

Aug 16, 2008 | Fuji FP-988D 19" Flat Panel LCD Monitor

1 Answer

350w switching power suply

at first chack at which time it shutting down. if it happen when u click on any drive or when u using cd/dvd drive then power supply cant regulate power. then chack switching transistor and filter section capacitor.
(Be careful about filter capacitor in primary section because some time it stored high voltage dc after plug of power supply at first discharge this two capacitor.)
** also chack supply voltage r stady or not.

Jun 26, 2008 | Codegen POWER SUPPLY CG|PS-350XA-12 RT...

1 Answer

Acer AL1715 going on and off (LED blinking)

Hi maxwell,

Firstly check for the surrounding components like th coupling resistors for a short. Change them, then look for leaky diodes (a diode shows low resistance when connected to a multimeter with correct polarity and MUST show infinite i.e. NO resistance at all when polarity of the meter testprods are reversed) As for the deformed capacitor change it with similar type, voltage and size.
VERY IMPORTANT: Make sure you put in the new one back in the same polarity (since it is an electrolytic type capacitor from what you mentioned in your querry) elase the new one will explode if the polarity is wrong.

Better still, if you are not good at soldering components that are so closely attached on the circuit board, just give it to an authorised service center in your area.

May 04, 2008 | HP Pavilion F1703 17" LCD Monitor

Not finding what you are looking for?
Yamaha DSPE390 Amplifier Logo

Related Topics:


Ask a Question

Usually answered in minutes!

Top Yamaha Audio Players & Recorders Experts

The Knight
The Knight

Level 3 Expert

76573 Answers


Level 1 Expert

2 Answers

Muntejaya Ginting
Muntejaya Ginting

Level 3 Expert

10422 Answers

Are you a Yamaha Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides