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Search: Posts Made By: tony359
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-26-2021, 02:59 PM
Replies: 8
Views: 767
Posted By tony359
Re: Reflow equipment

I can reach 480 degrees with my station (I think?) but I'm trying to keep the temps as low as possible to avoid damaging the components - considering I have a pre-heating plate.

Using larger...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-26-2021, 05:06 AM
Replies: 8
Views: 767
Posted By tony359
Re: Reflow equipment

Indeed I’m experimenting with scrap boards and trying to folllow a profile I’ve set on an app which is monitoring the thermocouples- even though I found that an IT thermometer is more reliable. As...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-25-2021, 04:24 PM
Replies: 8
Views: 767
Posted By tony359
Re: Reflow equipment

what about larger BGA's? Shall I use the larger nozzle - which is basically the same diameter of the wand - and increase the flow?
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-25-2021, 02:15 PM
Replies: 8
Views: 767
Posted By tony359
Re: Reflow equipment

ah, interesting as hot air used as top element.

Those seem to be within my budget - I see the Quick 861DE has 200L airflow which is probably more suitable for the larger nozzle, what do you think?...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-25-2021, 01:29 PM
Replies: 8
Views: 767
Posted By tony359
Reflow equipment

Hello all,

I am experimenting a bit with reflowing larger components - ideally I'd like to reflow a PS4 APU or a GPU for example.

I know it's impossible to reflow such large components with...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 11-06-2021, 01:59 AM
Replies: 4
Views: 794
Posted By tony359
Re: good quality DIP sockets

Thanks

Yes I did a little research and I didnít know those sockets still have a spring mechanism inside so it wonít matter whether the IC has round or flat pins.

I guess Iíll start using them....
Forum: Equipment Usage, Soldering, Techniques, and Reviews 11-06-2021, 01:20 AM
Replies: 4
Views: 794
Posted By tony359
Re: good quality DIP sockets

Thanks appreciated.

Iíve always felt a bit cautious about turned pin sockets as arenít they designed to accept round pins? I donít doubt they may work but logically a flat pin doesnít work very...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 11-05-2021, 06:00 AM
Replies: 4
Views: 794
Posted By tony359
good quality DIP sockets

Hi there,

Can anybody recommend a source of good quality DIP sockets please? I'm getting mine from Ebay and they feel very flimsy. If I plug a previously desoldered chip, the sockets get...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 10-31-2021, 03:19 PM
Replies: 6
Views: 628
Posted By tony359
Re: Where to find Amtech 559 in the UK - aka what's the best flux

bizzarre! I had just placed an order from them! Thanks mate, didn't expect to find an official distriutor on ebay!
Forum: Equipment Usage, Soldering, Techniques, and Reviews 10-31-2021, 02:46 PM
Replies: 6
Views: 628
Posted By tony359
Re: Where to find Amtech 559 in the UK - aka what's the best flux

the penis rocket! :D :D :D :D

I had found bgareworking before but they don't have either sizes in stock unfortunately.
Can you link the ebay seller (if allowed by the rules)?
Forum: Equipment Usage, Soldering, Techniques, and Reviews 10-31-2021, 12:36 PM
Replies: 6
Views: 628
Posted By tony359
Re: Where to find Amtech 559 in the UK - aka what's the best flux

I'd like to avoid Ebay and Amazon to be honest.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 10-31-2021, 08:02 AM
Replies: 6
Views: 628
Posted By tony359
Where to find Amtech 559 in the UK - aka what's the best flux

Hi all,

I am in the UK and cannot find a reliable source for Amtech 559 here. I can find it from Amazon but does not seem to be genuine - one one listing the "Amtech Europe" company which sells it...
Forum: Troubleshooting Audio Equipment 10-21-2021, 06:24 AM
Replies: 3
Views: 641
Posted By tony359
Re: Onkyo HT-R390

I have a feeling the message above was intended for another thread! :)
Forum: Troubleshooting Audio Equipment 10-21-2021, 06:08 AM
Replies: 3
Views: 641
Posted By tony359
Re: Onkyo HT-R390

Some extra notes
1. If I push the "mute" button on the remote, the clicking stops.
2. I have identified a few components on the main board which - when cooled down - will stop the clicking. Some...
Forum: Troubleshooting Audio Equipment 10-19-2021, 03:10 PM
Replies: 3
Views: 641
Posted By tony359
Onkyo HT-R390

Hi everyone

I've acquired a faulty Onkyo HT-R390 receiver - it's very low spec with "monolitic" amplifier ICs. It's mostly an exercise for me.

It would not power up (It would shut down...
Forum: Troubleshooting Audio Equipment 06-08-2021, 01:12 AM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

I still haven't lost the hope that @R_J (or anybody else) could chime in and push me in the right direction! :)

I have received some replacement transistors (Q6713) but I doubt they will fix the...
Forum: Troubleshooting Audio Equipment 05-25-2021, 09:23 AM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

After some troubleshooting, here are my findings.

I measure 40V (or whereabouts, I've noticed the supply voltage changes over time?) which is the supply voltage at both the BASE and EMITTER of...
Forum: Troubleshooting Audio Equipment 05-05-2021, 05:18 AM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

Yes, bot VPROTECT and IPROTECT read 1.4VDC.

I have checked Q6073, R6143, R6153, D6003, R6173, R6183 and R6193 (and relevant ones on all other channels) and I cannot see anomalies.

I've compared...
Forum: Troubleshooting Audio Equipment 05-04-2021, 03:28 PM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

Quick update: I have another Onkyo I am trying to repair (the infamous Dolby/DTS chip, I reflowed it but it lasted a couple of weeks - I'll try reballing it) and indeed the PROTECT lines read...
Forum: Troubleshooting Audio Equipment 05-04-2021, 12:18 PM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

Thanks again!

My multimeter reads only 1.42V on VPROTECT and IPROTECT between those points when I attempt to power up before the unit shuts down.

To confirm I am on the correct GND, I have...
Forum: Troubleshooting Audio Equipment 05-04-2021, 05:05 AM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

R_J

Thanks again for your time on this.

I have checked all ID+/ID- and they all read around 2mV DC (when unit is cold). That includes the repaired channel.

I did not get any voltage on...
Forum: Troubleshooting Audio Equipment 05-04-2021, 02:37 AM
Replies: 11
Views: 1,347
Posted By tony359
Re: Onkyo 577 repair

PeteHall

I admit I made that mistake at some point - mistaking a similar behaviour for an issue but it was just the current limiter dropping the voltage too much.

However, I have a "bypass"...
Forum: Troubleshooting Audio Equipment 05-02-2021, 02:26 PM
Replies: 11
Views: 1,347
Posted By tony359
Onkyo 577 repair

Hello all,

I am having fun repairing an Onkyo TX-SR577 AV receiver. It was shorted so it was powering down immediately once the ON/OFF button was pressed and my current limiter (light bulbs) was...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-01-2021, 03:42 PM
Replies: 13
Views: 1,384
Posted By tony359
Re: AMD R9 270x - Gigabyte Windforce

thanks again for your input.

I'll check the spikes.
The R9 also refuses to start on my i7 second gen mobo which I use as main desktop system.
I have tried a different PSU and cleaned the...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 03-19-2021, 03:32 AM
Replies: 13
Views: 1,384
Posted By tony359
Re: AMD R9 270x - Gigabyte Windforce

Ok, I tried the R9 on a different motherboard, an Asus P5t with a Core2 Quad on it. It wouldn't work at all. Fans glitch as mentioned before and no video ever.

The same R9 on a similar Asus (P6T)...
Showing results 1 to 25 of 55

 
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