Re: Onkyo TX-NR353 clicks no display

Just wanted to report back, the Receiver is working now on all channels.

Replacing the two Transistors fixed the problem. Although i have no idea why they measured ok, but seem to be defective.

Thanks for you help

Re: Onkyo TX-NR353 clicks no display

Ok, the problem is almost fixed.

The problem must be (or must have been?) on the SL part of the AMP board. The two Transistors Q6063 and Q6053 were the ones getting hot, untin they suddenly didn't get hot...

I tested with my multimeter and these two transistors suddenly had close to 0 Ohm resistance. So they are blown.

At first soldering them out didn't fix anything.. no sound but running fine. So i did check a litle on the AMP Board, and found that both Fuses were blown. As i did not have 10A Fuses (or...

Re: Onkyo TX-NR353 clicks no display

Now i did get it to boot properly, but have no clue why. All i did was measuring the components on the preAMP Board, and putting everything together. I had a speaker connected to Center to test with FM / AM if there is any sound, but did not have any (but i also did not have a antenna). After some seconds i did turn it of and noticed a litle electronic smell... The Power Transistors of the SL channel are hot like hell. although there was no heatsink attached, but to my understanding as there is no speaker connected the transistor should not be...

Re: Onkyo TX-NR353 clicks no display (UPDATE: Check Speaker Wires)

Now i'm a litle bit further, but iritated aswell.

I did try to measure the Power Transistors in circuit, but the readings were strange. So i did unsolder every one of them and measured of circuit.

Here are my measurements.

[code]
1:

CE = OL
CB = 13m Ohm
BE = 13m Ohm
Diode Mode B+E- 0.57v, B+C- 0.57v all other combinations OL
2:

CE = OL
CB = 10m Ohm
BE = 11m Ohm
Diode Mode B-E+ 0.56v,...

Hi,

i've got a Onkyo TX-NR535 AV-Receiver that does not power on.

It only clicks and nothin happens. Not even the Display is lit up short.

I can force it to power up "completely" if i remove the power connector to the AMP Board (the one directly from the transofmrator) OR if i unplug the HDMI board from the vertical board (leaving any cables connected)

The vProtection and iProtection both are at 0,5v measured through the vias beneath the CPU and using ground from the P9001 connector

The problem stays even with...

Re: New Members - please post your introductions here

Hi i'm Tobias from germany,

i try to repair TVs and safe them from the dumpster. I work at a University as a system administrator, but have fun diagnosing and repairing electronics of all kind.

But i do not have any education in electronics, everything i am able to do is by trying and googling