Pioneer Stereo amplifier SA-7800 sound problem

Hi Abling, the nearest you could compare with is a schematic for a SA-7800. check it out, it might help you.
download from elektrotanya.com.
Cheers.

HI,

Can you please give me the zipcode so that i can locate a repair person for you.

Hello Bernard, your Pioneer AX-311, is a two-channel, stereo amplifier, you can connect your Samsung TV, if it has audio output L and R, to an input of the Pioneer, say for the AUX input, what will get, is to listen to the sound of the TV in your Pioneer, in stereo, two channels, you can not have surround sound, because your Pioneer does not have that benefit
At the most, you can hear the sound of Samsung on the TV and the amplifier simultaneously, and you will hear a sound delay between the Pioneer and the Samsung
I hope my answer was useful
Greetings Franco Dosil

Hola Bernard, su Pioneer AX-311, es un amplificador de dos canales, estereo, usted puede conectar su TV Samsung, si tiene salida de audio L y R, a una entrada del Pioneer, supongamos por la entrada AUX, lo que va a obtener , es escuchar el sonido del televisor en su Pioneer, en estereo, dos canales, no podra tener sonido Surround, porque su Pioneer no posee esa prestacion
A lo sumo, podra escuchar el sonido del Samsung en el televisor y el amplificador simultaneamente, y se escuchara un retardo de sonido entre el Pioneer y el Samsung
Espero que le haya servido mi respuesta
Saludos Franco Dosil

Replace the light bulb??

You simply have a bad solder joint somewhere. A visual examination of the solder joints should show you the problem.

Please dive more details of the Problem

where exactly are these resistors located? any idea about the circuit board resistor numbers? sometimes burnt resistors do not go completely bad and is still possible to measure their values. why not take them out and try measuring their values. otherwise u have to b very specific about the rsistor numbers

YOU SHOULD UPGRADE YOUR OLD SPEAKERS WITH BETTER ONES AND USE HEAVYER SPEAKER WIRE

thoght i coukd...

for audio system always you have left and right channels.
get the output (left&right) from tuner---go to equalizer input left&right.---from equalizer output go to amplifier inputs.and certainly from amplifier output to speaker.