I didn't even catch the typo. I read it correctly as 0.4W. The sub is working great
Unfortunately my denon has now decided to act up 
Sierra117
Member
Last Activity: 01-13-2017, 10:12 AM
Joined: 07-09-2013
Location: East Lansing, MI
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Re: Infinity SSW-10 sub-woofer power suply
I didn't even catch the typo. I read it correctly as 0.4W. The sub is working great Unfortunately my denon has now decided to act up
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Re: Infinity SSW-10 sub-woofer power suply
Thanks for the help. After replacing R3, my voltages went back to normal. I'll test the audio output tonight. I tested my op-amps (IC1, IC2, IC3) and 2 of the original ones had shorts, which would explain why R3 went bad after I replaced it the 1st time.Leave a comment:
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Re: Infinity SSW-10 sub-woofer power suply
Correct, that should have said R2 and R3.Leave a comment:
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Re: Infinity SSW-10 sub-woofer power suply
Huh, R3 is showing 4.38K Ohm. R2 is showing 436 Ohm. They are both the same resistor though (4370 205A) so that must mean that it overheated when i put it in and changed its value. Time to get another resistor.Leave a comment:
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Infinity SSW-10 sub-woofer power suply
Hi all,
I have an Infinity SSW-10 sub-woofer that stopped working that I acquired from family. Upon opening the woofer the fuse and 2 resistors (R1 & R2: 430 Ohm 1W 5%) were blown. I replaced both the fuse and the 2 resistors (437 Ohm 1W 1%). The PCB was also badly burned where the resistors were which damaged some traces, so I repaired them as much as I could with jumpers (see Trace Repair). I have attached both the repair manual as well as before/after pictures of my repair. See page 38 of the manual for the schematic and pages 34 & 35 for the PCB layout. Please note the... -
Re: Hannspree HF237 (2 seconds to black)
UPDATE: After removing the CCFL lamps, I was able to isolate which lamp was the issue, which was also making an arcing sound when powered on. The bulbs themselves were actually just fine, and it was only the wiring that was faulty. You can see the wire shielding is burnt on one side in the pictures. I ordered some replacement wire from ccflwarehouse and replaced the wiring. The monitor works good as new. I was also missing the stand for the monitor so I got dell stand with the VESA mount, and it works great....
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Re: Hannspree HF237 (2 seconds to black)
UPDATE: Testing the CCFLs from the smaller 17" monitor seemed to work. So it looks like the inverter board is fine and I have 1 or 2 bad CCFLs... I will pull them out when I get a chance, and upload pictures.Leave a comment:
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Re: Hannspree HF237 (2 seconds to black)
Yes, The PC input still displays the image on the LCD. It is just the blacklights that go out. I do have a second (smaller 17'') monitor that I could use to test the CCFLs; however the condition of that monitor is also suspect, as it does not even power on. Is it possible to blow the smaller CCFLs when connecting to the larger display circuitry? I haven't worked with CCFLs much.Leave a comment:
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Hannspree HF237 (2 seconds to black)
Hi all,
I have a Hannspree HF237 that I acquired from a friend. The monitor seems to have the typical symptoms of the "2 seconds to black" detailed in [URL="https://www.badcaps.net/forum/showthread.php?t=10419"]this[/URL] thread. I will try to provide as much information as possible. Pictures are attached at the end.
[B]Symptoms[/B]: The monitor turns on as normal (blacklights and lcd) with an image. Soon after (varying amounts of time, sometimes a few seconds, sometimes 1 minute) the backlights will increase in brightness then go completely out....Last edited by Sierra117; 07-09-2013, 01:49 PM. -
Re: New Members - please post your introductions here
Hi all,
My name is Pat. I studied computer engineering at MSU, and I am currently a graduate student in EE. I am debugging an LCD monitor, and I found a lot of good info on the forums here, so I decided to joined.Leave a comment:
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