Question about Pioneer Sx 780 Stereo Receiver

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No sound output from turntable on sx-780 receiver

I connected my turntable to my receiver but no sound! Everything else works like AM FM sound and I have even been able to connect my portable cd player! I 'd like to listen to my old albums

Posted by otto Kirpitnik on

  • otto Kirpitnik Dec 18, 2012

    I have sound from all other sources except from the Phono (turntable) if it is a fuse wouldn't it blow everything.

  • otto Kirpitnik Dec 18, 2012

    PS I will not get rid of this receiver as it has served me well since I bought it for $350 in 1978 or 79. New receivers often do not have a phono input for my Turntable.

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1 Answer

Mike Meder

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  • 259 Answers

Do you have in connected to a phono input? be sure you haven't connected it to another input..........turntables are low-level (20ma) output, cannoit drive high-level input (200ma).........good success, meder's tv service

Posted on Dec 18, 2012

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Sam

  • 3247 Answers

SOURCE: My Pioneer Receiver (SX-255R) won't

Just to be sure we are talking the same unit I have included the link to the user manual for SX-255R
http://www.pioneernz.co.nz/Site/Pronto/Files/user_manuals/SX255R%20USER%20MANUAL.PDF

Suggestions
1. have you tried to press the Muting button on the remote unit.
(item 11 remote unit diagram)? does it make any diffrence - what if the button is stuck?

2. Have you tried to play the Tuner radio - what happens then? do you still get Muting.

3. You mentioned something about speaker wire coming out.
I understand that Pioneer receivers shut off if any of the speakers is faulty, ie, correct impedance is not showing at the speaker input point.
Usually the newer units give an "overload" message. It is possible this could be happening and the SX-255R gives the "muting" message instead. Some people have reported very minute shorts where strands of the speaker wire touch the body and it causes "overload".

One way to check is to remove speakers wires one by one and see if the "muting" goes away. Then you can check the offending speaker if that is what is happening.

Good luck
Please do drop a comment to say how you progressed.

Posted on Jan 02, 2010

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David Dunn

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SOURCE: Can I connect my pioneer SX-255R stereo receiver

Yes, but it depends on your laptop hardware and software. We'd need to know a lot more about that side.

Posted on Jan 21, 2010

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Hey there,
What I think is the problem here is that your A/V receiver may have a blown preamp for the turntable input. Or, although less likely, assuming that both channels sound normal when the receiver is set to a different input such as an FM tuner, there could be an impedance mis-match between the turntable's output and the reciever's input. But, the goal is to try simpler (and much more inexpensive), methods first. Try replacing the cable that connects your turntable to the receiver. If no difference is heard, then we should take another diagnoses.

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SX-1600 + KD-491F


Appreciate the additional information.

To recap what you need is a receiver that can accommodate:
4 - Pioneer S-DF1-K (15-100W, 8 ohms)
1 - Pioneer PD-F407 25 Disc CD Player
1 - Pioneer CT-300 dual tape deck
1 - Kenwood KD-491F turntable

Possible choices are (keeping in mind that the power output should be less if not equal to 100 watts and a turntable/phono input):
i. Onkyo TX-8522 Stereo Receiver;
ii. Yamaha RX-397 100 Watt Natural Sound AM/FM Stereo Receiver;
iii. Sony STR DE695 AV receiver;
iv. Teac AG-790 200 Watt Stereo Receiver;
v. Denon AVR 888 - AV receiver - 7.1 channel.

Some of the above also includes feature(s) to hook up to your video system. Some may even require a fifth speaker (subwoofer).

Incidentally, you can also choose another brand/model even without a turntable/phono input. As initially posted, a turntable/phone to line level pre-amplifier is only required. Here are some examples:
a. XP200 Turntable Preamp - Nano Series;
b. Pyle® Pro PP999 Phono Preamplifier;
c. Pro-Ject Phono Box Turntable Preamplifier;
d. Radial J33 RIAA Turntable Preamp Direct Box

Good luck with your project.

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1 Answer

SX-1600 + KD-491F


Hi again,

It would seem that you posted the problem here also. With your kind permission, I will repost my excerpts of my responses that others may benefit on similar concerns.

A. Most current receivers no longer include a PHONO input. Perhaps what could be done is to purchase a phono to line level pre-amplifier to go along in your purchase for a new receiver.

I was made to understand that the Pioneer SX-1600 is prone to speaker output problems which could either be:
1. the speaker relay (protection); and/or
2. the amp, STK4191II Stereo Module.

Either should be relatively easy to work on and perhaps you can try the services of a locally available qualified electronic technician since the repairs would not be too specialized. The service manual may be of help (or at least a schematic , they may be downloaded from here and here).

B. To recap what you need is a receiver that can accommodate:
4 - Pioneer S-DF1-K (15-100W, 8 ohms)
1 - Pioneer PD-F407 25 Disc CD Player
1 - Pioneer CT-300 dual tape deck
1 - Kenwood KD-491F turntable

C. Possible choices are (keeping in mind that the power output should be less if not equal to 100 watts and a turntable/phono input):
i. Onkyo TX-8522 Stereo Receiver;
ii. Yamaha RX-397 100 Watt Natural Sound AM/FM Stereo Receiver;
iii. Sony STR DE695 AV receiver;
iv. Teac AG-790 200 Watt Stereo Receiver;
v. Denon AVR 888 - AV receiver - 7.1 channel.

Some of the above also includes feature(s) to hook up to your video system. Some may even require a fifth speaker (subwoofer).

Incidentally, you can also choose another brand/model even without a turntable/phono input. As initially posted, a turntable/phone to line level pre-amplifier is only required. Here are some examples:
a. XP200 Turntable Preamp - Nano Series;
b. Pyle® Pro PP999 Phono Preamplifier;
c. Pro-Ject Phono Box Turntable Preamplifier;
d. Radial J33 RIAA Turntable Preamp Direct Box

Good luck with your project.

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Hope that helps...

Geno

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