Hi Peeps,
I have been trying to fix my broken reciever.
Its a Onkyo TX-SR577, its quite old, but it was working fine.
I think basically the centre channel has had it.
There are two very burnt looking transistors.
1. TOSHIBA C5198 931
2 PHR MPR 2w R22K X2
There is clear evidence of the magic smoke come from certainly the TOSHIBA compnent and possibly the PHR MPR 2w R22K X2. However, that just might have burn marks because of the proximity.
The question is where can i get "Quality" parts?
I really am an amatuer, i can solder, and I have a multi-meter. But my knowledge is pretty poor.
Any advice anyone can give would be greatly appreciated.
I have seen lots of posts saying beware ebay etc. for crummy parts.
Many thanks for any advice.
A
I have been trying to fix my broken reciever.
Its a Onkyo TX-SR577, its quite old, but it was working fine.
I think basically the centre channel has had it.
There are two very burnt looking transistors.
1. TOSHIBA C5198 931
2 PHR MPR 2w R22K X2
There is clear evidence of the magic smoke come from certainly the TOSHIBA compnent and possibly the PHR MPR 2w R22K X2. However, that just might have burn marks because of the proximity.
The question is where can i get "Quality" parts?
I really am an amatuer, i can solder, and I have a multi-meter. But my knowledge is pretty poor.
Any advice anyone can give would be greatly appreciated.
I have seen lots of posts saying beware ebay etc. for crummy parts.
Many thanks for any advice.
A
Hi,
I look on places like Mouser, Arrow, AliExpress, eBay (watch ratings) or just jump onto Amazon and search. Sometimes you can go on Craigslist and find the same unit and buy for parts at cheap price. Or choose a kit on this site and build a better amp/receiver. My two cents.
G
I look on places like Mouser, Arrow, AliExpress, eBay (watch ratings) or just jump onto Amazon and search. Sometimes you can go on Craigslist and find the same unit and buy for parts at cheap price. Or choose a kit on this site and build a better amp/receiver. My two cents.
G
Hi Boston Guy, Without looking like a total plank, do you think these are the right things.
https://uk.farnell.com/on-semiconductor/fja4310otu/trans-npn-140v-10a-150deg-c-100w/dp/3368621
and a couple of these do the job
https://uk.farnell.com/cgs-te-connectivity/sqmw5r22j/res-0r22-5-5w-radial-wirewound/dp/987499
I found an old link to someone who looks like they were doing similar work.
Transistors and emitter resistor for ONKYO TX-SR506 AV Receiver
Im assuming any old thermal grease will do.
something like this. https://uk.farnell.com/mg-chemicals/860-4g/silicone-heat-transfer-compound/dp/2811968
Really appreciate these forums, absolute gold mines of info.
thanks
A
https://uk.farnell.com/on-semiconductor/fja4310otu/trans-npn-140v-10a-150deg-c-100w/dp/3368621
and a couple of these do the job
https://uk.farnell.com/cgs-te-connectivity/sqmw5r22j/res-0r22-5-5w-radial-wirewound/dp/987499
I found an old link to someone who looks like they were doing similar work.
Transistors and emitter resistor for ONKYO TX-SR506 AV Receiver
Im assuming any old thermal grease will do.
something like this. https://uk.farnell.com/mg-chemicals/860-4g/silicone-heat-transfer-compound/dp/2811968
Really appreciate these forums, absolute gold mines of info.
thanks
A