After thirty two years of faithful service I decided to give my Panasonic RX 5005 ,the very first radio I ever owned, some TLC. I just changed out all the electrolytic capacitor and cleaned all the potentiometers. Although she still worked pretty good I needed to change the belts so figured now would be a good time to change the caps. When I ordered my capacitors I did not order enough of one of the sizes so the circuit board got left out while I was waiting for the missing ones to show up. Since I had to wait for the caps I went ahead and desoldered the potentiometers from the circuit board, took them apart, cleaned, and regreased them all. While the circuit board was left out I caught my 14 year old god son man handling it even though I had told him to leave it alone. I finally got the missing caps soldered in and everything seems to work but I have to max out the volume to be able to hear anything. I am thinking the amplifier chip got fried possibly by static electricity what do you think? I did use higher voltage ratings on some of the capacitors but I matched the capacitance values and if I replaced one 16 volt with 25 volt they all got replaced with a 25 volt rated caps. I do not have a schematic for this box does anyone have one? The amplifier chip says LA4508 and 4K4 below that. I can find LA4508 chips online but the lower numbers are different from one source to the next and none of them match the 4K4.
Thanks for any guidance you can give me.