Question about Pioneer Audio Players & Recorders

1 Answer

I have a pioneer SA7800 amp when switching on there is no click from amplifier and therefore no output

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.

  • Master
  • 4,234 Answers

The output speaker relay will not engage(click) unless there are no problems found by the protection circuits. Since there is no click, we can assume that the output section has a problem. In order to track this down, some measurements will be needed while the set is powered up. I would request a detailed repair estimate from a local service shop. Report the results here and we'll guide you further.

Dan

Posted on Jul 19, 2009

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

I have a Kenwood KR V6090 tuner amp. Can anyone please tell me if I need a record deck with or without a pre amp fitted.


Hi. Some amplifiers provide power for a record deck (or you mean a vinyl record player). Some vinyl record player have their one amplification system, some don't. Those with the amplification system work fine on older amplifiers but others require a back-up power, like a transformer to provide power for the record player. You need to enquire with the store person on the type of record deck or record player you can use directly with the V6090. I had an early Pioneer Amplifier and a matching record player so that I could play the vinyl disc and LP's on full volume. Later I switched to digital Pioneer 7 channel. This couldn't accept the record player because it did not have a power substitute like the older Pioneer. So, when the record player plays, no signal is being sent to the amplifier and therefore, no music is heard, except from the needle.

Dec 12, 2014 | Kenwood Audio Players & Recorders

1 Answer

Pioneer SA100 integrated - low, distorted output


At this point, I would be looking at the main power suply for the final output stage. You may be attempting to drive the output with the driver section rather than the final amp stage. The center pin of the output transistors should have B+/B- on them. Measure that to ground and report the value here.

Dan

Jul 12, 2010 | Pioneer A35R 2-Channel Amplifier

1 Answer

I have power lights everything works except sound. It's a pioneer deh-p3300. Could it be programing?


Have you got it hooked up to the internal amplifier or to the rca outputs to an amp? I'm assuming you probably have it hooked up to an amp as most people do on hear but if not try the rca preamp output and see if it puts out anything. Let me knoe so I can futher assist you.

Aug 24, 2009 | Pioneer Car Audio & Video

1 Answer

No Audio when disconnect from external amp and hook to speakers


In a radio like your Pioneer and all similar units there are always a pre-amp circuit that feeds a power amp circuit,In some players there are more than one pre-amp circiuts. It is possible and highly probable that the power amp circuit in your Pioneer is shorted, so you still get some audio output , but very little. I believe this is your problem and I suggest that you bring it to a repair shop for an estimate or replace the unit. Good luck and please rate this answer, Thanks.

Apr 12, 2009 | Pioneer Car Audio & Video

2 Answers

Pioneer GM-5200T problem


i dont think transistors are bad . you should check the amp controlls they may need adjusting

Jan 20, 2009 | Pioneer GM-5200T Car Audio Amplifier

1 Answer

Soundstream300 amp how do I hook it up to my pioneer head unit


That depends on which wires you are referring to. High level inputs or low level (RCA) outputs? If you are thinking about trying to wire the amp up to your Pioneer direct, ie; running the power and ground off of the factory harness, think again, you'll fry your electrical system. You need to run a seperate power kit (8 gauge minimum; 4 gauge pref), then run RCA's from the line level outputs on the Pioneer. If you are planning to run a sub with the Soundstream then run your RCA's from the Pioneer's sub output. Let me know if I can help you any further.

Aug 17, 2008 | Soundstream EGA900D Car Audio Amplifier

1 Answer

Pioneer gm-5000t amp


If the amplifier is powering, but no sound, try disconnecting the speaker outputs from the amplifier and connecting a test speaker to the output channel. If you get sound, then one of the speakers in the car may be bad or shorted out. That can be confirmed with a voltmeter. If still no sound, then you need to check the input to the amplifier. Disconnecting the RCA cable from the input and testing that with an amplified speaker like you can get from Radio Shack will allow you to make sure that the amp is getting signal from your radio.

Jul 13, 2008 | Pioneer GM-5000T Car Audio Amplifier

1 Answer

Pioneer amph sa 9500 II


Hi yalazogeday

Your amp is fitted with two 2SD588A (NPN) and two 2SB618A (PNP) power transistors in the output stages. Click on the part for a place to get them from. These parts are no longer available from Pioneer, nor are the prescribed replacements. (the amp was built in 1978) Because of the unusual transistor package used, you may have to upgrade to a more modern transistor, and modify the mounting also.

robotek


May 24, 2008 | Audio Players & Recorders

4 Answers

Pioneer QX-949


From Charles (owning a QX 949, still working but with some investment into repairs by myself) :
QX 949 contains a "power protection cirquit". This cirquit reacts aswell on short-cirquit (either within the output-amplifier cirquit {transistors} or by faulty speakers) as on overload (by playing musik toooo loud).
Your QX 949 might therefore either be affected by short-cirquit within one of the four output amplifiers or there might be a problem within the pre-amplifier or power section, causing an AC or DC signal to appear at the inputs of the output-amplifier section and therefore overloading the output, as if music was played too loud. First basic test: does the discribed "tick sound" (which means that after power-up the protection cirquit releases the relais again) also appear when the volume is turned down completely ? If not, the fault must be a signal produced within the pre-amplifier section before the volume regulation. If yes there still could be a pre-amp problem after the volume regulation but it´s more likely to be found within the output-amp section. One won´t get round to measure this section (oscilloscope) at it's signal inputs to exclude a faulty signal to arrive there. If this is not the case I would recommend to disconnect and reconnect the four output-amps from the power supply one after the other, for finding which one causes a short-cirquit. But before doing this: try out what happens if you change QX 949 into 2-channel mode by turning the socket on the rear panel. Doing this the output amps for the rear channels are deactivated. If your QX 949 was working under these conditions it would limit your further search to the amps for the rear channels.
There is also a small chance that the power-protection cirquit as such is faulty or that the power supply contains problems. The power supply has got 6 fuses that you will find underneath the bottom plate. Are they all still ok ? (If one of them is broken then there can be a positive or negative supply to the output-amps as these are receiving + and - DC-currents from the power supply)
Basically: this amplifier is almost about 30 years old. As the lifetime of electrolytic capacitors ends after about 15-25 years there appears the need to replace them all (on all the prints). I did it with my QX 949... but you definitely must love yours to do that, it's quite an investment of patience and time.
And: servicemanuals.net display on their webpage availability of QX 949´s service manual. If you can't find it I might be able to scan some pages.
Charles (Switzerland)

Mar 13, 2008 | Audio Players & Recorders

1 Answer

Pioneer Model Is21 stereo


Switch speaker wires if sound switches then amp probably has a final amp ic.output problem. Try balance control and tape dubbing or loudness buttons to see if any are dirty.
May have to get repairs at a shop if the amp is worth saving.

Good Luck
BIG RED

Nov 02, 2007 | Audio Players & Recorders

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

139 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pioneer Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5056 Answers

John
John

Level 2 Expert

509 Answers

T-Comtech Repairs
T-Comtech Repairs

Level 2 Expert

417 Answers

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

Answer questions

Manuals & User Guides

Loading...