Take a picture of your Krell KAV-300i please?

egeriis · 7th June 2010, 08:31 PM

Hi,

My Krell died...

I sent it to repair, and got the message "Transformer dead.
A new transformer will cost $1200 + working hours (Living in DK... All US stuff costs double or more).

Didn't want to pay that much, so I got the amp back.
Months later the work shop told me, they found a transformer at a better price, and I bought it.
Now I am trying to mount the new transformer in my amp, but I didn't pull it apart myself, so it is a little tricky.

Krell KAV-300i - My Photo Gallery
Krell KAV-300i - My Photo Gallery
On this board, I should mount a green and a orange wire, but I cannot see where.
I gues P2 and P11, but which should go where?

The SG-302 should probably go to R1, but I am not sure.

Krell KAV-300i - My Photo Gallery
On the main board, I should connect 10 wires:
2 orange
1 yellow
1 red
1 grey
1 black
1 brown
1 purple
1 green
1 blue
I have no idea in which order they should be connected.

A picture with the wires would be great.
Hope someone can help?

Sorry for my childish language...

Best regards
Jan

skruerselv · 8th June 2010, 08:37 PM

Yes of course - Sorry

Here´s a picture - hope you can see the colours of the wires

Thomas

skruerselv · 10th June 2010, 09:27 PM

How about the krell ? Have you fixet it ?

egeriis · 12th June 2010, 01:23 PM

Transformer mounted, yes.
Power on... not yet.
Will probably check voltage with light bulp first.

5th element · 13th June 2010, 05:35 PM

I'd power it up without the transformer connected to the amp and check the voltages that you're getting are safe.

For example the green/blue and red/yellow pairs look as if they should be the two main secondary windings. It should be easy enough to measure the AC voltage without applying it to the amplifier. You may have done this of course. But the light bulb wont save the amp if the output on the secondaries is twice as high as it should be, simply because you've got the amp connected for 110v instead of 240v.

skruerselv · 28th June 2010, 12:16 AM

Anything new about the Krell ?

Petscan · 24th January 2012, 04:27 AM

Quote:

Originally Posted by skruerselv

Yes of course - Sorry

Here´s a picture - hope you can see the colours of the wires

Thomas

Dear Thomas,

Do you know the value of the capacitor connected to the AC inlet at the lower right quadrant of your photo? Thanks.

ingenieus · 24th January 2012, 07:55 AM

Going by the wire colors alone might not be prudent. Are you quite sure that the replacement transformer uses the same color conventions as the original one?

7th June 2010, 08:31 PM	#1
egeriis diyAudio Member Join Date: Jun 2010	Take a picture of your Krell KAV-300i please? Hi, My Krell died... I sent it to repair, and got the message "Transformer dead. A new transformer will cost $1200 + working hours (Living in DK... All US stuff costs double or more). Didn't want to pay that much, so I got the amp back. Months later the work shop told me, they found a transformer at a better price, and I bought it. Now I am trying to mount the new transformer in my amp, but I didn't pull it apart myself, so it is a little tricky. Krell KAV-300i - My Photo Gallery Krell KAV-300i - My Photo Gallery On this board, I should mount a green and a orange wire, but I cannot see where. I gues P2 and P11, but which should go where? The SG-302 should probably go to R1, but I am not sure. Krell KAV-300i - My Photo Gallery On the main board, I should connect 10 wires: 2 orange 1 yellow 1 red 1 grey 1 black 1 brown 1 purple 1 green 1 blue I have no idea in which order they should be connected. A picture with the wires would be great. Hope someone can help? Sorry for my childish language... Best regards Jan

13th June 2010, 05:35 PM	#5
5th element diyAudio Member Join Date: Oct 2002 Location: England	I'd power it up without the transformer connected to the amp and check the voltages that you're getting are safe. For example the green/blue and red/yellow pairs look as if they should be the two main secondary windings. It should be easy enough to measure the AC voltage without applying it to the amplifier. You may have done this of course. But the light bulb wont save the amp if the output on the secondaries is twice as high as it should be, simply because you've got the amp connected for 110v instead of 240v. __________________ What the hell are you screamin' for? Every five minutes there's a bomb or somethin'! I'm leavin! bzzzz! Droggon Attack!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
KRELL KAV 300I Schematic Anyone ?	vdavidov	Solid State	10	5th December 2011 02:15 PM
Krell KAV 250a deader than a dodo	digitallake	Solid State	68	30th January 2011 08:55 AM
Help! Krell KAV-300i voltage conversion, jumpers version	Gadget King	Solid State	5	21st December 2010 04:31 AM
Krell KAV-250CD mk2	eradoncic	Digital Source	8	21st September 2010 04:58 AM
Discrete DAC in Krell KAV 300CD	Ruach	Digital Source	5	16th April 2007 02:56 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

8th June 2010, 08:37 PM	#2
skruerselv diyAudio Member Join Date: Jun 2010	Yes of course - Sorry Here´s a picture - hope you can see the colours of the wires Thomas

10th June 2010, 09:27 PM	#3
skruerselv diyAudio Member Join Date: Jun 2010	How about the krell ? Have you fixet it ?

12th June 2010, 01:23 PM	#4
egeriis diyAudio Member Join Date: Jun 2010	Transformer mounted, yes. Power on... not yet. Will probably check voltage with light bulp first.

28th June 2010, 12:16 AM	#6
skruerselv diyAudio Member Join Date: Jun 2010	Anything new about the Krell ?

24th January 2012, 07:55 AM	#8
ingenieus diyAudio Member Join Date: Apr 2011	Going by the wire colors alone might not be prudent. Are you quite sure that the replacement transformer uses the same color conventions as the original one?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)