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Rotel RA 1570
#44
(03-27-2020, 01:43 AM)Vlada021 Wrote: Sva merenja referisana na masi CN201 (pin5 i 7)
Pin 1: 3.5mV (relej neaktivan) 5.0V (relej aktivan)
Pin 2: sve isto kao i pin 1
Pin 3: 3.3V
Pin 4: 840mV
Pin 6: 3.3V
Mirna struja malko niža od onoga što bi trebalo 4.3mV (5mV treba) ali to će se rešiti samo malo da odstoji da se ugreje.
Dok je ranije zaštita reagovala, ledice su ostajale upaljene bez obzira što je relej neaktivan, i onda kad ih isključim (A/B) i ponovo restartujem amp A/B nisu aktivni i zaštita ne reaguje.
Još nisam stavio dummy load nigde, čekam da mirnu struju sredim prvo.

Ovo mi "smrdi" na te konektore, lokalne GNDje....

Ti si prije napisao:
"Imam 3.2V na CN201 na pinu 1 i 2 (releji aktivni) 3.4V neaktivni,samo što sam....!"
+3,2 i +3,4V trebali bi držati pogoj ON, nešto ne valja sa lokalnim GNDjima po konektorima!

Napisao sam ti:
"Sad, dali LEDice isto ugase kad se ti sa kratkospojenim pre-inom deaktiviraju releji?
Ako LEDice (ili samo jedna LED ako imaš samo jedan par zvučnika/Dummy uključen)
svijetle a releji zaštite se čujno deaktiviraju
onda:

na konektoru CN201 pinovi 1 i 2, trebamo imati +3,3V
onda se aktiviraju Q657/658/659/660

-Izmeri napone na CN201 na pinu 1 i 2, ALI uzmi GND od konektora CN/CP604 pin2 GND
tu zapravo vidiš kojim tačno naponom okidamo Q657/658,
ako imamo tu 3V+ trebalo bi biti OK."

Evo, pogledaj to, predrmaj konektore, pošpricaj-očisti...
LP
Dragan
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Messages In This Thread
Rotel RA 1570 - by Vlada021 - 10-02-2019, 05:20 AM
RE: Rotel RA 1570 - by HomeMadeAudioProject - 10-02-2019, 04:02 PM
RE: Rotel RA 1570 - by Vlada021 - 10-02-2019, 06:54 PM
RE: Rotel RA 1570 - by branko tod - 10-02-2019, 08:02 PM
RE: Rotel RA 1570 - by Vlada021 - 10-02-2019, 10:03 PM
RE: Rotel RA 1570 - by branko tod - 03-12-2020, 12:46 PM
RE: Rotel RA 1570 - by Vlada021 - 03-12-2020, 08:01 AM
RE: Rotel RA 1570 - by Vlada021 - 03-12-2020, 12:00 PM
RE: Rotel RA 1570 - by Khadgar2007 - 03-12-2020, 12:12 PM
RE: Rotel RA 1570 - by Dragan100 - 03-12-2020, 02:16 PM
RE: Rotel RA 1570 - by Vlada021 - 03-12-2020, 09:38 PM
RE: Rotel RA 1570 - by emiSAr - 03-12-2020, 11:32 PM
RE: Rotel RA 1570 - by Vlada021 - 03-12-2020, 11:46 PM
RE: Rotel RA 1570 - by Vlada021 - 03-13-2020, 06:35 AM
RE: Rotel RA 1570 - by Vlada021 - 03-21-2020, 01:13 AM
RE: Rotel RA 1570 - by Vlada021 - 03-21-2020, 10:55 PM
RE: Rotel RA 1570 - by Vlada021 - 03-23-2020, 06:00 AM
RE: Rotel RA 1570 - by Vlada021 - 03-24-2020, 08:01 AM
RE: Rotel RA 1570 - by HomeMadeAudioProject - 03-24-2020, 08:06 AM
RE: Rotel RA 1570 - by Vlada021 - 03-24-2020, 08:30 AM
RE: Rotel RA 1570 - by Khadgar2007 - 03-24-2020, 08:46 AM
RE: Rotel RA 1570 - by Vlada021 - 03-24-2020, 08:51 AM
RE: Rotel RA 1570 - by Dragan100 - 03-24-2020, 12:15 PM
RE: Rotel RA 1570 - by Vlada021 - 03-24-2020, 12:35 PM
RE: Rotel RA 1570 - by Vlada021 - 03-24-2020, 01:09 PM
RE: Rotel RA 1570 - by Dragan100 - 03-24-2020, 02:37 PM
RE: Rotel RA 1570 - by Dragan100 - 03-24-2020, 03:18 PM
RE: Rotel RA 1570 - by Dragan100 - 03-24-2020, 03:27 PM
RE: Rotel RA 1570 - by Vlada021 - 03-25-2020, 12:21 AM
RE: Rotel RA 1570 - by Vlada021 - 03-25-2020, 03:06 AM
RE: Rotel RA 1570 - by Vlada021 - 03-25-2020, 08:54 AM
RE: Rotel RA 1570 - by Dragan100 - 03-25-2020, 09:23 AM
RE: Rotel RA 1570 - by Vlada021 - 03-25-2020, 09:44 AM
RE: Rotel RA 1570 - by Dragan100 - 03-25-2020, 11:39 AM
RE: Rotel RA 1570 - by Vlada021 - 03-25-2020, 12:26 PM
RE: Rotel RA 1570 - by Dragan100 - 03-25-2020, 02:35 PM
RE: Rotel RA 1570 - by Vlada021 - 03-26-2020, 12:51 PM
RE: Rotel RA 1570 - by Dragan100 - 03-26-2020, 05:33 PM
RE: Rotel RA 1570 - by Vlada021 - 03-27-2020, 01:43 AM
RE: Rotel RA 1570 - by Dragan100 - 03-27-2020, 08:38 AM
RE: Rotel RA 1570 - by HomeMadeAudioProject - 03-27-2020, 03:13 AM
RE: Rotel RA 1570 - by Vlada021 - 03-27-2020, 03:16 AM
RE: Rotel RA 1570 - by HomeMadeAudioProject - 03-27-2020, 03:31 AM
RE: Rotel RA 1570 - by Dragan100 - 03-27-2020, 08:43 AM
RE: Rotel RA 1570 - by Vlada021 - 03-27-2020, 03:39 AM
RE: Rotel RA 1570 - by Vlada021 - 03-27-2020, 09:22 AM

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