Question about Technics SA-DA10N 5.1 Channels Receiver

1 Answer

Technics/Panasonic Sa-Da 10 A/V reciever

I've lost my right and left channel but, not total sound loss. The switching relay for those channels, one of five doesn't hold. When I slightly flex the board or tap the relay, it will make contact and I will get a very faint sound. I believe I lost the power module for the front right and left channel. I ordered a new relay from electronic goldmine as a good measure. I have worked on ab amplifiers before and have replaced power transistors before. When locating the power amp module I am assuming that they are on the heat sink like power transitors of older amps. Just to be frank where are the power mods, what exactly do they look like and what is the part number and where can they be bought? Back in the day it was so easy, If I lost a channel I'd locate the power transistor for that channel and replace it or if it had static after that I'd replace the affected filtering capicitors. When I opened this thing up it, looked a little different. There are 3 black bars on the heat sink and they have 2ch labeled on them are those the power modules and are power modules the equivelant to power transisitors? There are only 5 powered channels on the sa-da 10 but, there are 3 of those bars = 6ch? There isn't any power for a subwoofer. It has an lfe single for an active sub. Anyways, I have 3 of these amps and I really like them regardless of their badging.
thanks for your help, Thommy

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Technics Master
  • 5,568 Answers

Those 'black bars' are the integrated preamp/output stages. This has benefits from a production standpoint and even from a quality standpoint since these modules have all the necessary feedback internal to them so using them, one can expect consistent performance without a a bunch of tweaking at the end of production.
If you would post any nomenclature you can uncover on the exposed side, one of us will be able to source them and they have typically not been that hard to find or expensive to purchase.
They are made by a number of different semi houses like National Semiconductor, Texas Instruments, Maxim and several asian houses particularly from Taiwan. The highest power module I've had to deal with was 40+40 watts but I don't recall the PN or maker.
They do die, but often, if you can extract the PN from them, you can find schematics of the innards from the manufacturer on line and use them for troubleshooting. Once you've seen the diagram, they are not all that exotic. PNs typically start with letters and end with numbers such as TDA 1657. Four digit numbers most often are the approximate date of manufacture; 3804 = 38th week of 2004.      

Posted on Dec 13, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

No sound


the service manual http://www.hifiengine.com/hfe_downloads/index.php?technics/technics_sa-500_service.pdf

Jul 27, 2014 | Technics SA-EX500 Receiver

1 Answer

No sound from left channel on my Technics SA-R 230


May just be bad connections on the speaker relay. Flip the main board over, and check those connections. It is pretty common on these older models.

Jan 18, 2013 | Technics Audio Players & Recorders

1 Answer

Why is my right channel not working on my Technics reciever?


The right channel output section or speaker might have damaged. Seek tech support.

Jun 03, 2012 | Audio Players & Recorders

1 Answer

No power to the speakers no sound


only the left speaker out wont work on either a or b channel anyone know email me mikeyandjessie12@aol.com could it be the speaker wire its 10 gauge speaker wire so idk either channel ive checked its only the left out so i can only listen to the right out on each channel and i cant listen to both channels but does anyone know if you might be able to get a 4 in av cable to a 2 av cable and run 200ws out of this or no

Nov 14, 2010 | Technics SA-EX140 Receiver

1 Answer

No left channel sound


check wiring. if ok, swap speaker channels if ok, swap rca plugs, if ok. Bad channel on amp.

Jun 29, 2009 | Technics SA-DA10N 5.1 Channels Receiver

1 Answer

Left channel main and remote dead no sound output


That would be the most likely part to fail. Verify that the voltages to the pins are the same for the one that works and the one that does not. If the voltages are the same for both, the IC is defective. If the voltages differ, look for low valued resistors that are in series with the IC power leads and check them. These resistors act like fuses,

Keep us posted.

Dan

Mar 22, 2009 | Technics Audio Players & Recorders

1 Answer

Output Power of a Technics SA-DV250 sound system.


100 watts per channel both channels driven into 6ohm. You can download the owners manual at http://www2.panasonic.com/consumer-electronics/support/ (Technics and Panasonic are both made by the same company) Then enter your model #. the specs are on page 23 of the manual.

Feb 25, 2009 | Technics SC-DV290 System

2 Answers

Technics SU-G91 Left channel bad


Did you ever find the solution to the left channel issue? I have the same problem with mine.

Dec 02, 2007 | Technics SA-AX540 Receiver

1 Answer

Technics SA-AX720


Look for lossing solders points or bad conections. Start to look on those components of hi wattage and components to get hot alot, those are the most common to have weak solders spots.
Also some equipment need to be clean because the dust can make problems.
good luk.

May 21, 2007 | Technics SA-AX720 Receiver

Not finding what you are looking for?
Technics SA-DA10N 5.1 Channels Receiver Logo

276 people viewed this question

Ask a Question

Usually answered in minutes!

Top Technics Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

4861 Answers

T-Comtech Repairs
T-Comtech Repairs

Level 2 Expert

417 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Technics Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...