I have a kicker zx650.4 (rev2.0 2008) with a weak channel that I would love to fix, any idea on where to start?
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Re: Kicker zx650.4 weak channel
maybe by uploading a straight shot hi res pictures and a schematic if you have one. -
Re: Kicker zx650.4 weak channel
No schematic yet, but I will try to find one.Attached FilesComment
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Re: Kicker zx650.4 weak channel
you got an oscilloscope? if not, can you borrow one? First I would probe the input stage to see if the unbalance occurs there. Any strange noises? How weak are we talking about?Comment
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Re: Kicker zx650.4 weak channel
I do not have an O'Scope, I am considering getting a mini pocket one like the dso 201 or dso nano v3, if thoes wont work I can ask my friends dad who has a real scope if I can borrow it.Comment
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Re: Kicker zx650.4 weak channel
Oh and the difference as measured by a db meter phone app is approx 6-10db.Comment
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Re: Kicker zx650.4 weak channel
So there is quite a bit of difference then. You need to input a test signal with either generator or hookup a computer with a sound card. Then measure the gain through each op amp and go through the stages. don't forget to check the input and output of the variable resistor that sets the gain. Nice thing is one channel is working 100%. So you can compare between them. Good luck!Comment
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Anyone run memory speed tests with an old X58-based triple channel 1st gen or any other >2 channel board? The one I have is a Gigabyte I think.
Anyway I had four 4GB DDR3-1333 modules in the 6 memory slots and got around 11GB/sec memory speeds assuming that it went dual channel since it didn't have enough modules for triple channel. Now I stuck in two more 4GB modules, but they are DDR3-1600. I'm still getting 11GB/sec speeds according to memtest86...
Just wondering, anyone do memory speed analysis on these triple (and higher) channel memory boards? Are there any... -
Hi friends
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Hi guys I have a VLP1500 amplifier here - one channels works fine and the other channel distorts even at low volume settings
Protection and Clip LED are off
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I tested all diodes and transistors in this area in circuit with diode mode - both channels seem identical. Same in resistance mode across all the resistors here.
The output DC voltages on pin1 and pin8 of the 5532D dual op amp at the input of each amplifier module are the same, and the audio... -
Hi Guys
I have a customer who has two Hitachi TVs in his bar, one is the model in the thread title and the other is a larger screen but has the same setup menu
He also has an LG TV, so three screens in the bar
I installed three Satlink ST-6503 DVB-T Modulators
This model https://www.aliexpress.com/item/32916553905.html
These connect to three satellite receivers via HDMI cables and then connect to a 4 way RF Amp that connects to the TVs on aerial cable. There is no incoming terrestrial antenna. I set the channel ID on the modulators to... -
Hi guys,
I need a help with my Marantz pm6005. It started to have weaker the right channel a few months ago, than it got back to normal and now it has lost sound completely on the right channel. At the final stage it was loosing the channel for a while and than it returned. After it has disappeared completely I could forced it back by unplugging the source form CD (which I normally use) to phone and back. It would then work for a few minutes and died again. Now it is possible power up and all function works normally (apart the right channel ) on all inputs, except the phone both channel...01-30-2023, 12:11 PM
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