missing schematic of another version of psw111 amplifier
Fabio_rm
Posts: 53
It seems to me that, from the photos posted also in this forum, there are two versions of the PSW111 plate amplifier. One is practically the same as the PSW110 with some different and more powerful components, another is radically different. I'm looking for the schematic of the second, the pics are these
Comments
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As evidence that there are two versions, this is the pic of the second version, whose amplifier has the same schematic as the PSW110 I already have, where lack the LFE connector
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The values are printed on just about every component.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
The values are printed on just about every component.
I didn't understand the point of the comment, they are two different amplifiers with different projects, I have the schematic of one, the other I don't. I'm a technician and I know how to read an electrical schematic, sometimes need to understand the logic of the circuit to make a repair and not disassemble and test components at random. -
Well, you could start with the 2 caps circled in red. That sub is infamous for blowing caps and those 2 do not look good.
Other than that, you can send an email to Polk asking for a schematic. Be sure to mention it is a 230 volt version.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
The bridge rectifier and filter caps are OK, i fear the problem is in the little pcb mounted in vertical, the PWM controller, end i fear the schematic do not show the circuit of that as in the PSW110 schematic, but maybe the problem could be somewhere else on the board and schematic can help to understand it.Well, you could start with the 2 caps circled in red. That sub is infamous for blowing caps and those 2 do not look good.
Anyway thank for the idea to contact polk directly, I believed they no aswer but i can tray
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I have sent the only version of the schematic that Polk has already to @Fabio_rm any other versions are lost.
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SeleniumFalcon wrote: »I have sent the only version of the schematic that Polk has already to @Fabio_rm any other versions are lost.
thanks for the bad news
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Other than that, you can send an email to Polk asking for a schematic. Be sure to mention it is a 230 volt version.
I wrote to them two weeks ago, they don't reply
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It appears they no longer have the schematic. Time for a new sub.
Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
I have already two SUB, one sealed BK Electronics (similar REL) and a PSW110 buyed defective and repaired by myself.It appears they no longer have the schematic. Time for a new sub.
I like how te Polk Sub sound with my Canton Plus S saltellite, so i thinked to try the PSW111, It have an 8" woofer cone e maybe wil be also better mix whit Canton Plus S. furthermore the PSW110 is too bulky and the colour, light cherry, clashes with the furniture.
In that case I would keep the PSW111 and sell the other two, I don't know where to put them anymore.
I founded a PSW111 defective for sale in my city at 40 euro, and I would like to try to repair it, but it is not the usual known heartbeat defect, when turning it on the fuse blows. The seller says he took it to be repaired and the technician told him that the problem is the PWM controller board, but I would not be so sure. That's why I'm looking for the wiring diagram.
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Finally somebody aswer to.
Marantz Italy service write:
"Good morning.
I asked for information to our authorized Italian Polk Audio service center and they told me that the schematic for this model is not available and the replacement board for the amplifier is no longer available.
Regards."
Then...nothing to do. -
You were already told it is not available.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Frankly I can't believe that an authorized service center doesn't have the schematic and they threw away the technical documentation, I can't understand the logic behind it. Evidently this is a company directive or limitations dictated by company transfers to different distributors.You were already told it is not available. -
Fabio was TOLD!!!
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It has been said but there is no logical reason removing the technical documentation from availability. Why? Is it a state secret?Fabio was TOLD!!!
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Dude, give it up already.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk
