Question about Earthquake Sound PH-D2 Car Audio Amplifier

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Numbers on these oiecen on one earthqkaue ph d2

There are 3 parts that have the numbers scratched off one is the pwm you gave me that number and i have replaced the mosfets and the pwm still gets hot and goes into protect i have tested everything i can think of and started replacing diodes still doing the same the only thing i can think of is the other two parts with the numbers scratched off what do you think and whould you have the numbers to those 3 pieces.. thank you.

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Hello their ! those parts are a secret of earthquake you need to send the
amp for service trust me!! .. theirs nothing you can do..

Posted on Mar 10, 2009

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Posted on Jan 02, 2017

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Ic number of acer lcd monitor v193hqv?


Hi guys the pwm ic number in acer v193hqv is TEA 1530 AP.......
ic-number-acer-lcd-monitor-v193hqv-24xmyhrdihglghh0of3x3cm1-3-0.jpg

Aug 05, 2014 | Acer Computers & Internet

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Outer screen scratch


Mitsubishi is currently offering the following parts


Model Number Model Description Part Number Part Description Price Available WD-52631 52" DLP TV I/B WD52631 OWNERS GUIDE $15.00 YES WD-52631 52" DLP TV I/QR WD52631 QUICK/REF WD52631/57731/65731 'G' $3.50 YES WD-52631 52" DLP TV 915P049010 LAMP (150W) (V33/V33Y/V33+) 'G' $249.00 YES WD-52631 52" DLP TV 290P137010 REMOTE 'G' $33.10 YES

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1 Answer

Ph calculation


Number of moles [H+] in first solution =concentration of [H+] in mol/L times the number of liters. [C1]=10^(-pH)=10^(-3) mol /L
Number of moles N1=10^(-3) mol/L * 1L= 10^(-3) mol [H+]
Concentration [C2] of second solution
[C2]= 10^(-5.5)=3.16227766*10^(-6) mol/L of [H+]
Number of moles of H+ in second solution
N2=[C2]*10 L =31.6227766*10^(-6) mol of H+
Total number of moles H+ in the new solution
N=10^(-3) +31.6227766*10^(-6) =1.031622777*10^(-3) mol
Concentration of H+ in new solution
[C]=1.031622777*10^(-3) mol / (1+10) L=9.358388878 *10^(-5) mol/L
Resulting pH=-log( 9.358388878 *10^(-5) =4.02787
pH is 4.03

Jun 15, 2014 | Office Equipment & Supplies

1 Answer

The ph part on my test strips is brite pink why?


pH Scale
Examples of solutions on the pH Scale compared to distilled water are set out below:
  • pH = 0 => Battery Acid which is very strong Hydroflouric Acid
  • pH = 1 => Hydrochloric Acid secreted by stomach lining
  • pH = 2 => Lemon Juice, Gastric Acid, Vinegar
  • pH = 3 => Grapefruit Juice, Orange Juice, Soda
  • pH = 4 => Tomato Juice, Acid Rain
  • pH = 5 => Soft Drinking Water, Black Coffee
  • pH = 6 => *****, Saliva
  • pH = 7 => "Pure" Water
  • pH = 8 => Sea Water
  • pH = 9 => Baking Soda
  • pH = 10 => Great Salt Lake, Milk of Magnesia
  • pH = 11 => Amonia Solution
  • pH = 12 => Soapy Water
  • pH = 13 => Bleach, Oven Cleaner
  • pH = 14 => Liquid Drain Cleaner such as "Draino"


pH Scale Numbers
This scale is logarithmic. It means that each number is 10 times stronger than the preceding number. For example, a pH of 2 is ten times more acidic than a pH of 3 and one hundred times more acidic than a pH of 4. It is important to monitor pH because live depends on it. For instance, human blood is basic with a pH between 7.3 and 7.5. If the pH of blood drops below 7.3, acidosis occurs. If the blood pH rises above 7.5, alkalosis occurs. Death will occur if blood pH goes below 7.0 or above 7.8. Our human existence depends upon a balanced and buffered blood pH.

so u should seek medical attention

Jul 03, 2012 | Flents Universal pH Test Strips - For...

1 Answer

Earthquake ph 2d amplifier... there are 3 parts that have the numbers scratched off one is the pwm you gave me that number and i have replaced the mosfets and the pwm still gets hot and goes into protect i...


hello their the best way to fix this amp is to send it in for factory service !
the scatched parts are kinda a company secret . thust me ..
it will take more money trying to fixing it your self..

Jan 21, 2009 | Earthquake Sound PH-D2 Car Audio Amplifier

1 Answer

I HAVE JVC SURROUND SOUND SYSTEM MODEL SP-PWM 45,I HAVE LOST 8 PIN CONNETOR FROM MAIN AMP TO SUBWOOFER. WHERE CAN I PURCHASE THIS CONNECTOR THANKS


Here is a link to the system cable that I think that you are reffering to. The model number of the system you have is TH-M45

The model number you gave is for the sub-woofer only. This is the system cable that is required to connected between the sub-woofer and the main head unit with the DVD changer in it.

http://www.jvcservice.com/store/ProductDetail.asp?Part=QAM0381-001%20%20%20%20

If you can not click on the above link, just copy the entire link and paste it into the address bar of your interent browser.

Since this is the part you want and it is the cheapest place to purchase it, a rating of "FixYa!" would be appropriate and very much appreciated. After all, it is the only reward we get for offering people like yourself this free technical support.

Thanks,
Dave

Sep 12, 2008 | Pioneer 1000 Watt 5.1 Surround Sound...

3 Answers

Scratched top. Need part number?


assuming the very top cover on both units are scratched??? i have part numbers for you , but thinikin your gonna need to call cust service to order the parts, local part houses probably dont stock them(lg parts anyway).. washer part number( AGU30781501 $80US) dryer part number ( AGU30071202 $70 US)

May 10, 2008 | LG WM2487H Front Load Washer

2 Answers

Earthquake ph-d2


The PWM IC is an SG3525. Which IC are you calling the protection IC?

Nov 02, 2007 | Earthquake Sound PH-D2 Car Audio Amplifier

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