I agree with Tom. You can replace it for $15.
https://remotes-world.com/products/sony-hifi-str---de-597?currency_id=1&roistat=merchant8_g_42468722540_online:en:US:278613&roistat_referrer=&roistat_pos=1o1&utm_source=google&utm_medium=cpc&utm_term=&utm_content=v2||326757806593||pla-294505072980||||42468722540||807184691||1o1||g||||||pla||112912875||online||278613||US||en||294505072980||||||||m||294505072980||9016241||||&gclid=CjwKCAjw36DpBRAYEiwAmVVDMDU6mq9A6lNFbNTnK_6Hw0dJ7o-fRKHrXoHEYHB2ArU_JhhGK_R18RoCQ3IQAvD_BwE
Circuit failure
SOURCE: what type of fuse does
The main and I think only fuse is a gma 6.3v fast blow.
DO NOT Use a slow blow fuse it will cause more damage to your receiver!!! If it opened once it will probably open again.
Odds are a set of output transistors are shorted (MP1620 and a MN2488)
SOURCE: Need a remote for for Sony STR-DE597 Receiver.
Bad news, most every universal remote is for tv, vcr, dvd, cable box, and nothing else. you can goto sony.com or check ebay for a new one.
SOURCE: Can I connect a active subwoofer to my SONY
Yes, it only supports an Active Subwoofer. That's what the Sub Pre-Out is for.
Your sub will take that input, possibly split to two RCA connectors, and its internal amplifier will do the rest. Its own manual will give the specifics.
SOURCE: What are the steps to
Here is a link to the manual for your receiver:
http://www.docs.sony.com/release/STRDE597revision.pdf
SOURCE: My Sony STR-DE597 receiver makes
Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on; or it may turn on but produce no audio to the speakers.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'nekkid'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown.
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