Hi All
Can anyone help assist on id of this component (or manufacturer)from a TV UHF Amplifier
Can anyone help assist on id of this component (or manufacturer)from a TV UHF Amplifier
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Last edited by theoregano60; 10-02-2019, 01:13 PM. -
Re: Component ID on TV UHF Amplifier PSU
It is SMPS IC. What is the make and model of the device?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Component ID on TV UHF Amplifier PSU
Manufacturer: IKUSI (power supply side could be Teldis)
Model Number: NBS-804
Its a bit niche as this equipment is used in blocks of flats to distribute UHF TV signalsAttached FilesComment
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Re: Component ID on TV UHF Amplifier PSU
The closest I can find, so far is a DP2360, DP2362 based on the pinoutLast edited by R_J; 10-02-2019, 08:16 PM.Comment
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Re: Component ID on TV UHF Amplifier PSU
was the bits still in the device?Comment
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Re: Component ID on TV UHF Amplifier PSU
probably easier to put another 12/24v dual PSU in there.Comment
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Re: Component ID on TV UHF Amplifier PSU
It's a Samwin SW8603Attached FilesComment
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Re: Component ID on TV UHF Amplifier PSU
Thanks RJ your a star
Sorry for the lack of replies works been taking up a large chunk of time ,
next job to try and source once again many thanks too everyone
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My childhood best friend was killed about 9 years ago. His parents are finally letting go of his things, and they offered me his Polk RTi100 tower speakers. The Polk RTi100 towers are one of a handful of designs from the early 2000s that is a full range 3-way tower with a built-in self-powered subwoofer. This is accomplished with a plate amp integrated into the speaker input panel.
I think they used them for a while, but they've been sitting for at least a few years now. After about 40 hours of driving to their house and back (both they and I have moved in the last 9 years) I got... -
Hi Folks
Need some advice on how to test a subwoofer amplifier if i have access to only a multimeter.
Problem
I have a Boston Acoustics active Subwoofer (soundware S). Its rated output is 200W. But the output i am getting is very low i can barely hear/feel it even if put the gain at max. I replaced all the capacitors in the Subwoofer amplifier but still no change.
Is there anyway to test this without getting an oscilloscope/Function generator to see if the fault is with amplifier, driver or the source??
Any advice would be appreciated... -
Hi, people.
I've got an amplifier assembly from Mackie CR4 parts. It's just an amplifier, there was no speaker housing, so I used my set of CR4s to test it.
Anyway, upon connecting everything and hooking the "new" amplifier to an audio source, the sound played clearly and strongly for the first ten seconds. I was happy it was working. Then the sound started to fade out during the playback until it was no more. After it had "dropped to zero", there were two very short intervals of sound playing at the normal volume, as if the amplifier was trying to... -
Hi all forum members,
Fyi, i have been working on this old model PCT-4082 (4 channel car amplifier). The owner said only one channel is working.
My initial finding is this amp originally use Toshiba 2SA1943 and 2SC5200 transistor for its output but after opening the top casing i found it used Toshiba A1941 (pnp)and C5198(npn). I desoldered all the 4 pairs transistors and found 1 piece A1941 open(tested "OL" on all legs) and replaced the 1st pair with 2SA1943 and 2SC5200, thats why you can see in the picture it is the bigger size transistor. The other A1941 and C5198 all... -
Hi:
I've realized that one of the channels of this amplifier has no proper sound.
This is the signal at the speakers output.
As long as the audio coming in to the amplifier board (blue) looks ok although with some noise due to the wire, I think that there's nothing to look at the preamp section.
Now, I could start looking at components to see whether I find the guilty one.......but I would rather prefer to ask for advice. Here there is the amp. schema. Which points would you check with the oscilloscope to gather...
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