Search found 145 matches
- Sun Sep 16, 2018 6:07 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
Re: M44 repair question
because the bad resistor was directly connected to the SG3525 I also replaced it. I looked after the switched resistor but until now I couldn't find it. After putting everything together and testing again I'm left with one bad channel. That is the rear right channel. The front left and right are ok....
- Sun Sep 09, 2018 7:51 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
Re: M44 repair question
today I powerd up my M44 . When I power up, the red LED is working and after a few seconds the green LED is on (the red LED is out). It pulls no more than 3amps. 2 of the 4 channels are working. The left chanel of the front and rear section are working. The right chanel is making noise (sounds very ...
- Sat Sep 01, 2018 11:34 pm
- Forum: Car Audio
- Topic: M100...another jewel that was fiddled with
- Replies: 18
- Views: 8832
- Fri Aug 31, 2018 10:36 am
- Forum: Car Audio
- Topic: M100...another jewel that was fiddled with
- Replies: 18
- Views: 8832
Re: M100...another jewel that was fiddled with
I'm not an expert, the experts are stil on holiday I think :( What I would do: - take out all the components that are not original ( the 4 white ressitors to start...) - take out the 4 IRFZ 44 and test them individual when they are out - take out the 6 PSU caps - take out other components that are l...
- Thu Aug 30, 2018 9:32 am
- Forum: Car Audio
- Topic: M100...another jewel that was fiddled with
- Replies: 18
- Views: 8832
Re: M100...another jewel that was fiddled with
seems like a bad connection somewhere. Maybe a bad via.
this is a difficult one...
this is a difficult one...
- Tue Aug 28, 2018 12:43 pm
- Forum: Car Audio
- Topic: M100...another jewel that was fiddled with
- Replies: 18
- Views: 8832
Re: M100...another jewel that was fiddled with
12v 18A power supply is ok for testing.
if the amp uses more than 3 amps idle than something is wrong.
is the red LED also lighting up?
if the amp uses more than 3 amps idle than something is wrong.
is the red LED also lighting up?
- Tue Aug 28, 2018 10:56 am
- Forum: Car Audio
- Topic: M100...another jewel that was fiddled with
- Replies: 18
- Views: 8832
Re: M100...another jewel that was fiddled with
pictures of the board?
maybe the amp pulls to many current so you have a voltage drop.
Can you measure how many amps it uses? What is your power source?
maybe the amp pulls to many current so you have a voltage drop.
Can you measure how many amps it uses? What is your power source?
- Mon Aug 20, 2018 11:25 am
- Forum: Car Audio
- Topic: power grid MS style
- Replies: 3
- Views: 3271
Re: power grid MS style
it sold for 630USD
- Tue Aug 14, 2018 11:38 am
- Forum: Car Audio
- Topic: power grid MS style
- Replies: 3
- Views: 3271
power grid MS style
is this a prototype? https://www.ebay.co.uk/itm/Phoenix-Gold-Car-Truck-Amp-Old-School-POWER-GRID-T/192622442741?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D53530%26meid%3D5ff5443d12bf4920a1630962dd74b7ac%26pid%3D100033%26rk%3D3%26rkt%3D8%26mehot%3Dpp%26sd%3D132632511919%26itm%3D1926224...
- Sun Aug 12, 2018 12:00 pm
- Forum: Car Audio
- Topic: M50 Shutting Off and with No Protect
- Replies: 17
- Views: 11469
Re: M50 Shutting Off and with No Protect
it's a two-layer board
- Sat Aug 11, 2018 9:40 am
- Forum: Car Audio
- Topic: M50 Shutting Off and with No Protect
- Replies: 17
- Views: 11469
- Thu Aug 09, 2018 5:35 am
- Forum: Car Audio
- Topic: M50 Shutting Off and with No Protect
- Replies: 17
- Views: 11469
Re: M50 Shutting Off and with No Protect
you also need to change the rail caps...
- Thu Aug 09, 2018 5:32 am
- Forum: Car Audio
- Topic: M50 Shutting Off and with No Protect
- Replies: 17
- Views: 11469
Re: M50 Shutting Off and with No Protect
Hello
the power supply fets (IRFZ44) and the 2 diode (SF163) are not bolted to the heatsink. If you didn't take out the screws yourself look no further...
the power supply fets (IRFZ44) and the 2 diode (SF163) are not bolted to the heatsink. If you didn't take out the screws yourself look no further...
- Sat Aug 04, 2018 6:47 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
Re: M44 repair question
Thanks Jason for the info. I've put 4 new gate resistors en 4 new irfz's in, now the power supply works! The BJT's I need to order. Do you think that the resistors are switched during the production of this amp? Could this be the reason that this amp failed? Damn! than I need to find the other one...
- Thu Aug 02, 2018 3:32 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
Re: M44 repair question
did some researche
Sanken 2SA1695
Toshiba 2SA1941
Are these OK? Which are the best?
when using these, are there other components to be changed?
Sanken 2SA1695
Toshiba 2SA1941
Are these OK? Which are the best?
when using these, are there other components to be changed?
- Wed Aug 01, 2018 10:21 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
Re: M44 repair question
this is the one that is shorted...
- Wed Aug 01, 2018 9:22 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
Re: M44 repair question
there is also an output problem...
there are 4 x A1265 transistors and 4 x C3182 transistors, one A1265 is shorted. What is a good replacement for these?
is it OK to use two different complemantery transistors? Looks like this amp had no repairs before.
there are 4 x A1265 transistors and 4 x C3182 transistors, one A1265 is shorted. What is a good replacement for these?
is it OK to use two different complemantery transistors? Looks like this amp had no repairs before.
- Wed Aug 01, 2018 4:13 am
- Forum: Car Audio
- Topic: M44 repair question
- Replies: 17
- Views: 9986
M44 repair question
Hello everybody for the moment i'm repairing a M44 amp. It has blown powersupply fets and other issues. There are 4 IRFZ44 fets with their gate resistors of 100 Ohm. If you look closely you can see that there are only 3 resistors of 100 Ohm the most left one measures 51 Ohm. Is this normal? (it look...
- Fri Jun 22, 2018 11:27 pm
- Forum: Car Audio
- Topic: rebuilding an OG ms1000 Nickel
- Replies: 175
- Views: 95611
Re: rebuilding an OG ms1000 Nickel
This is the moment when all the hard work pays off.
This is so damn beautiful.
This is so damn beautiful.
- Wed Jun 13, 2018 8:56 am
- Forum: Car Audio
- Topic: Outlaw repair need advise
- Replies: 25
- Views: 20178
Re: Outlaw repair need advise
It’s also thanks to you Eric and a lot of other phorum members (like Jason,Bertje…) that I was able to do this project. It’s a pity that this forum is low on new posts now. My next project will be the restauration of a Cyclone that has been in the closet for +10 years...
- Sun Jun 10, 2018 9:44 am
- Forum: Car Audio
- Topic: Outlaw repair need advise
- Replies: 25
- Views: 20178
Re: Outlaw repair need advise
Thank you Sir but this is nothing compared to your MS1000 project…
- Sun Jun 10, 2018 5:23 am
- Forum: Car Audio
- Topic: Outlaw repair need advise
- Replies: 25
- Views: 20178
Re: Outlaw repair need advise
Finally find the time to finish this project.
This amp works like new. The M100 section is very powerful.
It took many hours and parts to finish but I'm glad that I saved this great amp.
This amp works like new. The M100 section is very powerful.
It took many hours and parts to finish but I'm glad that I saved this great amp.
- Wed Dec 06, 2017 10:16 am
- Forum: Car Audio
- Topic: ZPA .5 cooling fan board help required
- Replies: 4
- Views: 4298
Re: ZPA .5 cooling fan board help required
Q21: NPN transistor 120V 0.05A 3PIN SPT
Digikey part: 2SC2389STPS-ND
Q20: PNP transistor 120V 0.05A SPT3
Digikey Part: 2SA1038STPS-ND
Digikey part: 2SC2389STPS-ND
Q20: PNP transistor 120V 0.05A SPT3
Digikey Part: 2SA1038STPS-ND
- Wed Dec 06, 2017 9:50 am
- Forum: Car Audio
- Topic: ZPA .5 cooling fan board help required
- Replies: 4
- Views: 4298
Re: ZPA .5 cooling fan board help required
Mouser part number: 522-ZTX749
- Wed Dec 06, 2017 9:46 am
- Forum: Car Audio
- Topic: ZPA .5 cooling fan board help required
- Replies: 4
- Views: 4298
Re: ZPA .5 cooling fan board help required
Hi Virtue Q34 & Q35: the part has the mark "ZTX749" on it. Maybe other ZPA's have other parts? its a PNP transistor 25V -2A TO-92 link: http://datasheetz.com/data/Discrete%20Semiconductor%20Products/Transistors%20(BJT)%20-%20Single/ZTX749-datasheetz.html are you sure that these are bro...