Re: Harman Kardon AVR 370
Hello, I was able to fix it but I don't know what I did, that the central speaker doesn't work, the receiver does not sound central
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Re: Harman Kardon AVR 370
Hello, I checked all parts and they look good and the sound still creaks...
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Re: Harman Kardon AVR 370
Hello, today I have speakers and it turns out that one channel in the amplifier, the one that was damaged, plays quietly and creaks, it is SURR.LEFT
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Re: Harman Kardon AVR 370
Hello receiver repaired thanks for the help
Parts have been replaced:
B1647
D2560
2W 0,47 ohm
2SD600K Y TO126 NPN 100V 1A 130MHz
470pF 1KV
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Re: Harman Kardon AVR 370
ok i found and ordered 2SD600K Y TO126 NPN 100V 1A 130MHz
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Re: Harman Kardon AVR 370
You can recommend a replacement because I can't buy the same model anywhere HVTKTD600KGR
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Re: Harman Kardon AVR 370
ok Q856 is broken tomorrow I will buy these hi the rest seem ok
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Re: Harman Kardon AVR 370
So I replaced 2 transistors B1647 and D2560 + R817 3.3Ω.
Voltage on pin 1 & 2 CN66 = 17,2V
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Re: Harman Kardon AVR 370
Hello, I replaced these damaged parts now starts and after 10s turns off by itself...
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Re: Harman Kardon AVR 370
Ok, I'll check it tomorrow
Through these 54v I have damaged the central speaker CEN-TS60 and the loudspeaker already has someone else suggest what could have fallen in the inverter?
Such parts are there:
3.6uf 100v
2x 4.7uf 100v
26uf 100v
200uf 100v
10w40ohm
10w2ohm...
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Re: Harman Kardon AVR 370
I checked and no sound.
I think I have already found the reason for the short circuit at the SURR LEFT speaker output after turning on the power was 54v and dropped to 27v as in the photo after desoldering 2 ends B1647 and D2560 the amplifier works and I think I will order these 2 parts burned tomorrow...
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Re: Harman Kardon AVR 370
Sorry, I checked the power supply recently because I forgot to connect 50v.
Tomorrow I will check if the sound is.
I will look for the problem of this short circuit because when I connect the tape, it is short circuit immediately
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Re: Harman Kardon AVR 370
Black and red = 54V
Black and white = 54V
White red = 107V
The power supply is functional because I have a spare one.
When I pull this tape, it runs without promblem...Last edited by Technik92; 04-11-2020, 03:25 AM.
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Re: Harman Kardon AVR 370
after disconnecting the -50 V and + 50 V bus connector, the receiver starts without problems. Below are links to movies where I show the problem and 2 movie on which the receiver works after disconnecting the 50v plug.
[url]https://www.youtube.com/watch?v=KyDgsEN03m8&feature=youtu.be[/url]
[url]https://youtu.be/6l0qi-I6M2k[/url]Re: Harman Kardon AVR 370<br /> <br...ere I show the...Last edited by Technik92; 04-10-2020, 04:10 PM.
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Harman Kardon AVR 370
Hello, I have a problem with the harman kardon AVR 370 does not start after turning on, it immediately turns off, I borrowed the power supply from a colleague and its power supply works, so the reason will be in my power supply.
Has anyone had a problem with this power supply or has it repaired and knows which part could get stuck in it?
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Re: New Members - please post your introductions here
Hi guys, just decided to join your lovely forums. I found this place when I was searching for capacitors for replacing the bad GSCs that are on a board that a buddy from work gave me.
Hope to have some fun here as well as learn more about computer electronics and sharpen my electronics skills.
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