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Search: Posts Made By: playman
Forum: Troubleshooting Audio Equipment 06-12-2019, 12:11 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

So I guess the only way to fix it is to replace the processor?
Forum: Troubleshooting Audio Equipment 06-12-2019, 11:47 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

They both gave me 0 voltage, even with the fan test shorted (if that matters)
Forum: Troubleshooting Audio Equipment 06-12-2019, 11:11 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

The current heat after 10 minutes running on medium(ish) volume.
Forum: Troubleshooting Audio Equipment 06-12-2019, 11:01 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

My apologies, pin 3 gave me +5v and pin 1 gave me +2v.
Nope fans never turned on, just went straight into shutdown.
Yes I did a processor reset when I fixed the FR channel the first time.
It seems...
Forum: Troubleshooting Audio Equipment 06-12-2019, 10:14 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Did not check the bias, but have now and tuned them all to 25mv.
Pin 1 gave me 5.17v and did not change with the heating.
Pin 2 gave me 3v and raised as I heated it, I belive the amp went into...
Forum: Troubleshooting Audio Equipment 06-12-2019, 10:09 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Did not check the bias, but have now and tuned them all to 25mv.
Pin 1 gave me 5.17v and did not change with the heating.
Pin 2 gave me 3v and raised as I heated it, I belive the amp went into...
Forum: Troubleshooting Audio Equipment 06-11-2019, 11:43 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

I've resoldered the FR Channel and everything seems to be alright.
Did also drag the solder tip over the HDM1 contacts and haven't noticed any problem with it.
Would it be ok to short the fan test...
Forum: Troubleshooting Audio Equipment 06-08-2019, 12:43 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

FR channel seems completely dead now, no sound coming from it.
Did check it's voltage right after the repair and it was similar to the other channels.
Did not notice any bad solder points in that...
Forum: Troubleshooting Audio Equipment 06-07-2019, 04:41 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Update!
I connected everything last night and it ran just fine, except it was really hot, I barely could
hold my hand on top of the AVR and smelled heat/burning smell of it and noticed that neither...
Forum: Troubleshooting Audio Equipment 06-04-2019, 04:17 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

The fans atleast work, guess there's nothing left but to place it into it's future home.

Thank you so much for your time and all the help, it's really appreciated!!.
Forum: Troubleshooting Audio Equipment 06-04-2019, 03:58 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

I read that also in the manual, just thought that they would turn on at that heat.
The amp should go into protect mode soon as it gets to hot right?
Forum: Troubleshooting Audio Equipment 06-04-2019, 03:23 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

I've finished putting it to gather and all seems to work, I did reset it just in case.
Was able to listen to music on zone 1 with two speakers.
Now I just have to put it into the living room to...
Forum: Troubleshooting Audio Equipment 06-04-2019, 12:53 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

When I short it I get 0.1Ω reading
I bought this item....
Forum: Troubleshooting Audio Equipment 06-04-2019, 09:14 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

I finally received my resistors today.
I decided to measure them just in case, They measured around 0.6Ω
they were supposed to be 0.47Ω.
Unfortunately my DMM only measures from 0.1Ω and up-to...
Forum: Troubleshooting Audio Equipment 05-21-2019, 10:25 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

D582 Looks ok.
Q562, Q502 looked ok also, I also checked the other remaining 6 and they also looked ok.

So I guess there is nothing left but to order the Q652 trans and the 0.47Ω resistors, plug...
Forum: Troubleshooting Audio Equipment 05-17-2019, 06:54 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Just finished testing all the components in that channel.
Nothing out of the ordinary as I could notice, except for one Diode.
D582 measured 400kΩ and rising when positive probe was on cathode,...
Forum: Troubleshooting Audio Equipment 05-16-2019, 07:08 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

My DCA55 says that there is a short between Collector and Emitter on Q652 trans.
The other two seem to be ok.
Will be testing rest of the stuff tomorrow.
Forum: Troubleshooting Audio Equipment 05-16-2019, 05:43 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

R631 & R636? Don't you mean R632 & R637?
R631 & R636 are from the Center channel.
Any way those 4 18 Ohm are ok
R723 & R725 are open
Going to test the Trans now.
Forum: Troubleshooting Audio Equipment 05-16-2019, 04:35 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Just tested them, Front Right output gives me a reading of -22v (negative).
All the other outputs gave a reading of 0.5v or so.
Forum: Troubleshooting Audio Equipment 05-16-2019, 10:55 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Hi, sorry, I guess I wasn't clear enough in my post, my bad.
The problem started at first with the zone problem, when I was checking it's settings out, it went to standby mode suddenly with a slight...
Forum: Troubleshooting Audio Equipment 05-15-2019, 05:25 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270 - No power

I received the parts today and soldered them in.
Now it still won't power on, just like it did before I took it apart.
The orange power light turns white for a second then returns to orange.
I can...
Forum: Troubleshooting Audio Equipment 05-09-2019, 11:25 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Allright thanks again :D
Forum: Troubleshooting Audio Equipment 05-09-2019, 10:47 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Thank you so much for that, putting in an order now.

P.S.
Did my readings say if it was bad or ok?
Forum: Troubleshooting Audio Equipment 05-09-2019, 09:41 AM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Thanks for that, I noticed that R1 and R2 have the resistance of 10k in the DTA114, but the RT1P44 has the resistance of R1 10k and R2 47k, is that ok?

I thought it was broken because the Diode...
Forum: Troubleshooting Audio Equipment 05-08-2019, 01:22 PM
Replies: 47
Views: 498
Posted By playman
Re: Harman Kardon AVR 270

Thanks for that madan1 unfortunately I cant order it from aliexpress or alibaba as for some reason they started declining my card and i just spent almost 2 hours talking to their assistance witch got...
Showing results 1 to 25 of 203

 
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