- Pioneer Amp Problem - 5 Updates
- Old filter question - 2 Updates
- Had To Chuckle - 1 Update
| adnankanaan1961@gmail.com: Aug 10 10:37AM -0700 Hello guys i have read alot about this pioneer amp probs and seems all about same issue which is a bad design and mounting the amp inside is very weak depending on back plastic plate which make it easy to break and the whole heavy amp fall inside and causes a mess of short circuits at any unexpected vibration which happens to mine and i tried to fix it up by changing transistors many times and goes blown time after time despite the time waste by ordering those damn transistors and this stereo has a memorable time for me and my family i kept searching for a solution to bring back yo life i find this easy and very cheap instead of keep changing parts by doing this 1- disconnect the tape board ( black ribbon cable comming from main board) 2-buy 120wx2 power amp board(TPA3116D2)powered by 12v from the cable disconnected from tape 3-disconnect the grey ribbon cable from the old amp and split cables marked as RIN-FG-LIN and connect to new amp input then connect R OUT -L OUT to new amp +L +R only no negative need . 4- connect back to the old amp the cables of REF G and FAN and rest of cables keep disconnected. Now you can bring life back to your old pioneer beast. .. ENJOY YOUR FAVORITE OLD MUSIC |
| adnankanaan1961@gmail.com: Aug 10 06:33PM -0700 VERY IMPORTANT NOTE 1-if the amp is falling inside and the plastic plate is broken edges where screws goes in from the back side try to put it back in place and drilling new holes for the screws to hold back in its place and BE SURE THAT THE 2 HEAT SINKS of the transistors upper part is not touching the lower part to prevent short circuits between transistors (cable tie or isolated copper cables by tying them separately to the back plastic plate through vent holes). 2-support the amp by using metal strip fixed internaly above the amp on the back of the case to the vent fan (there is an plastic arm on top of the fan where you can fix the other end of the metal strip) I use a slot metal cover from old pc and works well for the size and length this way will support the weight of the amp and prevent it ftom falling back inside . 3-MOST IMPORTANT ISSUE is to disable the high voltage from the main power transformer output that generate hi voltage to the amp (no more need for this hi voltage) by desoldering the 3 pins marked as MAIN on the output board of the main power transformer and be sure to discharge the hi voltage that connected to the old amp (grey ribbon cable) marked as -B +B can be discharged by connecting those cables to a 70 watt lamp CARFULLY THEY CONSIST HIGH POWER FROM THE 2 GIANT CAPS and then isolate those cables and leave them disconnected from the old amp. This procedure must be taken before installing the above mentioned process Good luck |
| John-Del <ohger1s@gmail.com>: Aug 10 06:34PM -0700 > 4- connect back to the old amp the cables of REF G and FAN and rest of cables keep disconnected. > Now you can bring life back to your old pioneer beast. .. > ENJOY YOUR FAVORITE OLD MUSIC Why on God's green earth would anyone modify that hunk of garbage just to keep using it. I would be embarrassed for anyone to even see me throwing it out. Besides, I don't see how the 12V tape deck source will provide enough current to drive an output board, at least not above background level. It may be a stupid design, but those Pioneer amps aren't hard to fix. |
| adnankanaan1961@gmail.com: Aug 10 06:49PM -0700 As i said earlier its a vintage deck from the days when my kids were young and used to sing karaoke on it now they are all above 20 y old and they are happy to see it working again and as for stupid design it is stupid because they didnt consider enough strength for mounting inside and there is no spare parts neither service manuals from the companey it self (i find one posted in a forum very thanks to that persone )without his manual i wouldnt be able to reach to this result . Anyhow its just for those who like to keep on with thier memories |
| John-Del <ohger1s@gmail.com>: Aug 11 08:44AM -0700 > As i said earlier its a vintage deck from the days when my kids were young and used to sing karaoke on it now they are all above 20 y old and they are happy to see it working again and as for stupid design it is stupid because they didnt consider enough strength for mounting inside and there is no spare parts neither service manuals from the companey it self (i find one posted in a forum very thanks to that persone )without his manual i wouldnt be able to reach to this result . > Anyhow its just for those who like to keep on with thier memories I get it, but whereas that Pioneer was probably and honest 50WPC, you would be lucky to get a couple of watts per channel before the low current 12V tape deck source sags out or even fails completely. You should add a 12V transformer or use a buck converter and grab the now unused B+ source to supply it. You still won't get the same power output as it had but you can probably get up to half of what it had before it failed. |
| tabbypurr@gmail.com: Aug 10 12:17PM -0700 On Saturday, 10 August 2019 12:50:11 UTC+1, Fox's Mercantile wrote: > > NT > You ignorant twat. > I'm not even going to waste my time explaining this to you. Good. NT |
| Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: Aug 10 09:52PM +0200 On 10.08.19 13:50, Fox's Mercantile wrote: > On 8/10/19 5:14 AM, tabbypurr@gmail.com wrote: cut > You ignorant twat. > I'm not even going to waste my time explaining this to you. Good. Then we dont have to listen to an idiot. |
| tabbypurr@gmail.com: Aug 10 12:26PM -0700 On Saturday, 10 August 2019 14:55:21 UTC+1, Jeff Urban wrote: Tim R wrote: > >The message open carry sends is: the world is dangerous and >scary, we can't trust the government, it's everybody for >themselves. > It is. Does someone here really think the world is not dangerous, that they can trust the govt and that they don't need to look after thmeselves? I guess it takes all sorts. |
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