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Tfm 45 lost power!

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70chevelle

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M-400t CUBE

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Joined: Mon Jan 21, 2008 2:01 pm

Post Sat Sep 24, 2011 7:24 am

Tfm 45 lost power!

Had my system (tfm45 and ct6) playing last nite and had to run to the store and left it playing. Came home and all was quiet. No power to the amp? I pulled the fuse and checked it with my meter and it's showing resistance. I plugged it in to another outlet and nothing. No initial buzz, no lights, etc. Weather was fine, no storms and all the other equip is fine. Any thoughts ?
Main: TFM-45, Sunfire Tube CCC, Maverick DAC, NAD525Bee, Vandy 2C, Laptop
Office: M-500, CT-6, SDA360, Paradigm Studio 20, HRT MSII, PC
HT: Acurus 200x3, HK AVR247, Paradigm Mini Monitors, CC290, Micros, Velodyne DSL3750
Wght Rm: HR732, Paradigm Micros, Pure20
House: Denon AVR1400, Niles spkr box, SpeakerCraft Ceilings, BA A60II's, BA T930's, PC
Bedroom: Yamaha AVR, Panasonic DVD/CD chgr, Paradigm CC50/Micros, Yam sub.
Headphones: AKG Q701's, Sennheiser HD238's
Patio: Yamaha AVR, KLH In/Out Speakers
Misc: HK 330i
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engtaz

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"TAZ"

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Location: Tampa, FL

Post Sat Sep 24, 2011 7:36 am

Re: Tfm 45 lost power!

check breakers of the room or try each unit in a known working socket.
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use
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TNRabbit

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Post Sat Sep 24, 2011 7:56 am

Re: Tfm 45 lost power!

I'd pop the top & see if there are any obvious signs of failure. Check for leaking/exploded caps, burned spot, etc. If you aren't even getting a click or anything, I'd guess there's a power issue so I'd look there first. DO NOT touch any parts inside either as caps will store qiute a hit for long periods after being unplugged.
TNRabbit
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70chevelle

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Post Sat Sep 24, 2011 12:18 pm

Re: Tfm 45 lost power!

Thanks. I did the known socket routine. Opened up the case and didn't see any obvious clues, nor was there any unusual smells. Not a good day.
Main: TFM-45, Sunfire Tube CCC, Maverick DAC, NAD525Bee, Vandy 2C, Laptop
Office: M-500, CT-6, SDA360, Paradigm Studio 20, HRT MSII, PC
HT: Acurus 200x3, HK AVR247, Paradigm Mini Monitors, CC290, Micros, Velodyne DSL3750
Wght Rm: HR732, Paradigm Micros, Pure20
House: Denon AVR1400, Niles spkr box, SpeakerCraft Ceilings, BA A60II's, BA T930's, PC
Bedroom: Yamaha AVR, Panasonic DVD/CD chgr, Paradigm CC50/Micros, Yam sub.
Headphones: AKG Q701's, Sennheiser HD238's
Patio: Yamaha AVR, KLH In/Out Speakers
Misc: HK 330i
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frankieD

Frankie The Mouth

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Joined: Fri Mar 16, 2007 2:38 pm

Location: So Cal

Post Sat Sep 24, 2011 12:23 pm

Re: Tfm 45 lost power!

70chevelle wrote:Had my system (tfm45 and ct6) playing last nite and had to run to the store and left it playing. Came home and all was quiet. No power to the amp? I pulled the fuse and checked it with my meter and it's showing resistance. I plugged it in to another outlet and nothing. No initial buzz, no lights, etc. Weather was fine, no storms and all the other equip is fine. Any thoughts ?




If the fuse is showing resistance it is bad. A good fuse should show 0 resistance.

I'm just sayin'.
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engtaz

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"TAZ"

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Joined: Sat Jun 30, 2007 1:43 pm

Location: Tampa, FL

Post Sat Sep 24, 2011 12:42 pm

Re: Tfm 45 lost power!

Frankie is right. Fuse should read short or 0 ohms.
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use
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treitz3

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"Julian"
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Location: The tube lair in Charlotte, NC

Post Sat Sep 24, 2011 12:47 pm

In theory, yes. In reality, not exactly. Some of the fuses measured at CF showed a miniscule bit of resistance. What was the exact measurement in ohms?
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

Robert R. - "Did you see my North Korea analogy? I should have named it Carversite.kim"
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70chevelle

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Post Sat Sep 24, 2011 1:02 pm

Re: Tfm 45 lost power!

Not sure of the exact reading, it was bouncing around quite a bit, but off to Rat Shack for a new fuse. Fingers crossed
Main: TFM-45, Sunfire Tube CCC, Maverick DAC, NAD525Bee, Vandy 2C, Laptop
Office: M-500, CT-6, SDA360, Paradigm Studio 20, HRT MSII, PC
HT: Acurus 200x3, HK AVR247, Paradigm Mini Monitors, CC290, Micros, Velodyne DSL3750
Wght Rm: HR732, Paradigm Micros, Pure20
House: Denon AVR1400, Niles spkr box, SpeakerCraft Ceilings, BA A60II's, BA T930's, PC
Bedroom: Yamaha AVR, Panasonic DVD/CD chgr, Paradigm CC50/Micros, Yam sub.
Headphones: AKG Q701's, Sennheiser HD238's
Patio: Yamaha AVR, KLH In/Out Speakers
Misc: HK 330i
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treitz3

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"Julian"
"Julian"

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Joined: Mon Oct 16, 2006 5:39 pm

Location: The tube lair in Charlotte, NC

Post Sat Sep 24, 2011 1:10 pm

Huh?

Bouncing around? Now that's abnormal. You sure the batteries were good in the DVM?
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

Robert R. - "Did you see my North Korea analogy? I should have named it Carversite.kim"
<<

angelod307

SILVER-7 TUBE AMP

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Joined: Sat Jun 06, 2009 10:56 pm

Location: manning, sc

Post Sat Sep 24, 2011 1:24 pm

Re: Tfm 45 lost power!

if the fuse doesn't cover it, you have tom at vintage hifi, rolland at hi-tech, and bill at bob carver's repair center.
CarverFest: I just go for the arts and crafts
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beemers417

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Post Sat Sep 24, 2011 1:42 pm

Re: Tfm 45 lost power!

We can fix it. However, sending it to the closest shop is prob. the best option. Shipping can be a bitch.
Gunter the wonder dog is watching you...
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70chevelle

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Post Sat Sep 24, 2011 2:39 pm

Re: Tfm 45 lost power!

Beemers, I can drive it to you. I'm about 45 min east of the city. Rat shack didn't have the 12 amp fuse but they checked mine and it is blown. That's the good news right now. I'll have to order fuses on the net and wait for them to get here and figure out if it is something more. If so, I guess she'll get delivered for repairs.
Main: TFM-45, Sunfire Tube CCC, Maverick DAC, NAD525Bee, Vandy 2C, Laptop
Office: M-500, CT-6, SDA360, Paradigm Studio 20, HRT MSII, PC
HT: Acurus 200x3, HK AVR247, Paradigm Mini Monitors, CC290, Micros, Velodyne DSL3750
Wght Rm: HR732, Paradigm Micros, Pure20
House: Denon AVR1400, Niles spkr box, SpeakerCraft Ceilings, BA A60II's, BA T930's, PC
Bedroom: Yamaha AVR, Panasonic DVD/CD chgr, Paradigm CC50/Micros, Yam sub.
Headphones: AKG Q701's, Sennheiser HD238's
Patio: Yamaha AVR, KLH In/Out Speakers
Misc: HK 330i
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beemers417

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Location: Pittsburgh, PA

Post Sat Sep 24, 2011 2:48 pm

Re: Tfm 45 lost power!

You can throw in a 10A for testing. If it blows, you have a direct short.
Gunter the wonder dog is watching you...
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Mr. M-500t

(pair of) SILVER-7 TUBE AMPs

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Joined: Fri Mar 17, 2006 10:00 pm

Post Sat Sep 24, 2011 3:54 pm

Re: Tfm 45 lost power!

beemers417 wrote:You can throw in a 10A for testing. If it blows, you have a direct short.

=D> =D> =D>
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70chevelle

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M-400t CUBE

Posts: 125

Joined: Mon Jan 21, 2008 2:01 pm

Post Sat Sep 24, 2011 4:51 pm

Re: Tfm 45 lost power!

Does it have to be a ceramic fuse? I ordered the 12's but wont be here until next week. I have 10 amp auto fuses to test with if they will work?
Main: TFM-45, Sunfire Tube CCC, Maverick DAC, NAD525Bee, Vandy 2C, Laptop
Office: M-500, CT-6, SDA360, Paradigm Studio 20, HRT MSII, PC
HT: Acurus 200x3, HK AVR247, Paradigm Mini Monitors, CC290, Micros, Velodyne DSL3750
Wght Rm: HR732, Paradigm Micros, Pure20
House: Denon AVR1400, Niles spkr box, SpeakerCraft Ceilings, BA A60II's, BA T930's, PC
Bedroom: Yamaha AVR, Panasonic DVD/CD chgr, Paradigm CC50/Micros, Yam sub.
Headphones: AKG Q701's, Sennheiser HD238's
Patio: Yamaha AVR, KLH In/Out Speakers
Misc: HK 330i
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