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Pioneer sx440 balance

C

Chuck awker

Active Member
So,I have this Pioneer sx440 and the balance seems a little off (not as loud ) as the other.Im playing the songs I know so I can tell.Seems to be alit of room in there(12 watts) so I figure I can maybe do the job myself.
What caps or other would I be looking at.
Maybe it's more major but I'm thinking cheapest way first then go on from there.
 
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Chuck awker said:
So,I have this Pioneer sx440 and the balance seems a little off (not as loud ) as the other.Im playing the songs I know so I can tell.Seems to be alit of room in there(12 watts) so I figure I can maybe do the job myself.
What caps or other would I be looking at.
Maybe it's more major but I'm thinking cheapest way first then go on from there.
Click to expand...
stereo_receiver_sx_440_1240239.jpg
 
Is balance off on all input selector functions? If not, it's probably the source programming. If yes, try to identify any distortion in the weak channel. If present, a quick easy experiment is swap the 2 output transistors between channels. If weak channel follows the swap, you've found the problem. If I recall, the transistors have wires soldered directly on their leads, so take pic or 2 of under the (chassis- mounted) transistors so as to not mix shiite up & be sure to use a clamp- on heatsink of some sort if you have trouble hittin' the iron on target quickly. Never use a solder gun on things like this, too damn hot! I have one of these little rigs & it's a keeper, if not a bit anemic on the grand scale of things, great tuner & if any dial bulbs are out, like your meter bulb most assuredly is by looks alone, just unscrew & replace. Too bad just about every other receiver &/or tuner ever made is a pain in the ass to rebulb compared to these.
 
Catmanboo said:
Is balance off on all input selector functions? If not, it's probably the source programming. If yes, try to identify any distortion in the weak channel. If present, a quick easy experiment is swap the 2 output transistors between channels. If weak channel follows the swap, you've found the problem. If I recall, the transistors have wires soldered directly on their leads, so take pic or 2 of under the (chassis- mounted) transistors so as to not mix shiite up & be sure to use a clamp- on heatsink of some sort if you have trouble hittin' the iron on target quickly. Never use a solder gun on things like this, too damn hot! I have one of these little rigs & it's a keeper, if not a bit anemic on the grand scale of things, great tuner & if any dial bulbs are out, like your meter bulb most assuredly is by looks alone, just unscrew & replace. Too bad just about every other receiver &/or tuner ever made is a pain in the ass to rebulb compared to these.
Click to expand...
I will check all inputs,thank you
 
Catmanboo said:
Is balance off on all input selector functions? If not, it's probably the source programming. If yes, try to identify any distortion in the weak channel. If present, a quick easy experiment is swap the 2 output transistors between channels. If weak channel follows the swap, you've found the problem. If I recall, the transistors have wires soldered directly on their leads, so take pic or 2 of under the (chassis- mounted) transistors so as to not mix shiite up & be sure to use a clamp- on heatsink of some sort if you have trouble hittin' the iron on target quickly. Never use a solder gun on things like this, too damn hot! I have one of these little rigs & it's a keeper, if not a bit anemic on the grand scale of things, great tuner & if any dial bulbs are out, like your meter bulb most assuredly is by looks alone, just unscrew & replace. Too bad just about every other receiver &/or tuner ever made is a pain in the ass to rebulb compared to these.
Click to expand...
Soaked all switches and knows,worked them aggressively and now works,thanks for input.
 
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