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Need Schematic diagram for DB Drive A6 2800.1 amplifier

Got some burnt transistors and resistors on the pre amp board, This is a little board on the main circuit board which can be de-soldered

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Sorry but this website doesn't have that.

Posted on Apr 19, 2017

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1 Answer

Need the schematic diagram for a Db drive A8 1750.1d


Victor, unable to locate schematic, links below are a manual with trouble shooting and db's web site to get customer support.
press the helpful button and follow me on fixya for more tips and info

http://dbdrive.net/wp-content/uploads/2013/09/A8-Amplifier-Manual-1_21_13.pdf


http://dbdrive.net/

Feb 14, 2016 | DB Drive Car Audio & Video

1 Answer

The red light is on and the sound it doesn't come out >>]


means there an internal problem with the audio side of the amp and that the power side is working fine. normaly it is a blown transistor on the audio side. take the cover off and see if you can smell anything burnt and take the heatsinks off the transistors and inspect them.

Nov 05, 2013 | DB Drive Platinum PD1200 Car Audio...

1 Answer

KONZERT AV-502A KARAOKE AMPLIFIER,POOR AUDIO,2-RESISTOR WORN OUT PLS. HELP ME


pls check burnt resistors, if ceramic it's value is .25 0hms 5 watts, if big carbon film resistor it's value is 10 ohms 3 watts. check also power transistors A1941 & C5198. also check driver transistor A940 & C2073

Jan 06, 2013 | Car Audio & Video

1 Answer

Carlsbro Bass Reactor 400 bass amp - power section dead


• Could be drive transistor , output transistor or both on the main amp.

But check for power supply and in the preamps also.

• A signal tracer will come in handy when troubleshooting these kind

of symptoms.

• Measure supply voltages,

• Check offset voltage

• Check idling current

Isolate , and trace afterwards.


• Schematic is really needed when there are burnt and unrecognizable

component. But one can use similar schematics to analyze circuit

problem.

Aug 01, 2012 | Audio Players & Recorders

1 Answer

My problem i lost transistors for power for car amplifier audio apache i need numbers for transistors


There might be still other power transistors left, same part number

for the power inverter ( IRLZ43N on some ).


Except for the Main Amp that have Complimentary Pair


check for possible burnt or open resistors , too

Jul 23, 2012 | Audio Players & Recorders

1 Answer

There are some burnt carbon resistors beyond recognition on a peavey tnt bass combo.so I need the schematic diagram


Try these schematics:

http://elektrotanya.com/peavey_tnt115s_sch.pdf/download.html

http://elektrotanya.com/peavey_tnt_100_1974.pdf/download.html

Scroll down to "Get Manual" at the web page and click on it to download.

Please note that on the first schematic above, the power amp schematic is way down beyond the parts list and layout of the preamp section... keep scrolling. ALSO the powoer amp shows a real WIERD connection where the output transistors drive against ground and the center tap of the power supply transformer for the power amp portion then bounces around with the audio output... that is a wierd connection but it is possible.

May 23, 2011 | Peavey Max 126 10 Watt Combo Bass...

1 Answer

Need a schematic to follow circuits on kx800.2 amp. A 10 ohm resister 1/4W was smoked and need to trace the problem. This circuit area is just after the pre-amp board socket.


Hi! ok R64 is a 220 ω resistor & Q22 is a BD140 transistor, these 2 components are the final outputs for the -15V rail which feeds the pre-amp board. There are two scenarios here, firstly Q22 may have died of natural causes which has killed R64 or something has gone short on the pre-amp board which has taken both components out as a result. i would suggest replacing the two cooked components & if the amp then works ok it will be an easy repair, however if they go again then an investigation using an ohm meter will be needed on the pre-amp board to check for shorts on all any of the i.c's. let me know how you get on, if I can be of further assistance just ask!. Regards, acbva.

Jan 28, 2010 | Kicker KX800.2 Car Audio Amplifier

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