Question about Teac A-H300 Amplifier

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Teac A-H300 Amplifier

A recent problem has occurred whereby when I switch on my system(amp, CD, TAPE DECK, DAB tuner and analogue tuner) as soon as the amp has warmed up (3-4 seconds) within 1/2 a second of sound coming from the speakers, the amp cuts out.

The amp itself locks up - unable to change inputs, etc and the light around the standby button flashes. All the other components remain active and fully operational (as far as I can make out). All I can do is switch the system off via the remote or the standby button on the amp.

I've disconnected the power and reset the amp using the master power switch - but to no avail!

Referred to the manual - but no help - anyone know what might be going on????



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  • sjp23480 Apr 01, 2008

    Thanks Duncan - actually found the problem _ the aerial had been pulled from the wall socket (pesky kids) and was resting on the plugs on the speaker leads and shorting them out>

    reconnected the aerial cable and bingo! everything works!

    Thanks again,


  • scottie37 Sep 15, 2008

    My amp does exactly the same, except I don't know where the power surge is coming from. I can't see anything obvious that is affecting the plugs or cables at the back. Any suggestions?

    Where is the master reset button?

    Thanks, Scott.

  • gavadav Oct 20, 2008

    When I switch my amp on it's fine unless I start increasing the volume and then it cuts out - same for cd radio etc. At a relatively low level the amp works fine. Do I need to chuck it? If so I wont be buying another teac - I had no end of troubles. Any advice?


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I found the thread of one of my speaker cables was touching the backboard of the amp and shorting out - problem solved!

Posted on Oct 20, 2008

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It may be your unit is going into protect mode because of a problem in the power amp stage of your amp. If so, then it is time to see a repair shop. Good luck.

Posted on Mar 31, 2008

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Having looked at the TV, you will have a lot of problems trying to connect to that amp. The TV has a digital optical out output only. The disc player you mentioned will also be out only. You need a optical "in" for them both. The TV has no analogue out sockets. The only chance you might get any sound out is via the scart socket. If that is fully wired, then the scart might produce L&R analogue out. A scart plug with RCA connections (make certain it has both audio in and out) might produce some sound for the amp.
Otherwise no chance!

The amp you have was not made to work with digital signals. The TV will produce high quality Dolby 5.1 sounds. Assuming you get the scart to produce the sound, then you will only get stereo sound, little better than the TV itself!
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For connecting these to your amplifier you need 4 Stereo RCA Cable.
1.Connection for cd:
Take one of the RCA cable connect the one end (red/white) jack to the line out of your cd and connect the other end (red/white) to the CD input of Your amplifier.
2. Connecting the tunner:
Take one of the RCA cable and connect the one end (red/white) jack to the line output of you Tuner and connect the other end (red/white) to the TUNER input of your amplifier.
3. Connectiong the tape deck:
Now you have two RCA cable. Take one of the RCA cable and connect the one end (red/white) jacks to the PLAY out of the Tape deck and connect the other end (red/white) to the TAPE 1 play input of your amplifier.
Now connect the last RCA cable. Connect the one end (red/white) jack to the record input of the TAPE deck And connect the other end (red/white) to the TAPE 1 Record input of your amplifier.(this connection will help you to record to tape from cd or tuner. if you are not interested in recording then you can avoid this connection.)

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Nothing beats actually trying it. At least you would have some form of volume control but you might not be able to match it to the wired speakers.

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