Logitech z2300 inside and repair

[@01mustang05]

There is so much glue on my 20 year old 2004 set here that the left channel has gone lower power & all garbely like it's being overpowered. Looks like a bit of a pain to take apart & figure out, but glad to have come across this video; was hoping to see how complicated this might get, my skill level is basic but I thought I'd have a go at this.

[@diymariuselectro]

Good luck bro

[@01mustang05]

@@diymariuselectro chkl, ya, ok, thanks

[@01mustang05]

@@diymariuselectro I figured out the Left channel works coming out of the headphone jack on the Control Pad, when unit is powered on, so am thinkin this part is probably ok.

[@diymariuselectro]

you should study the control pod schematics and u will understand where is the problem.

[@dundergod]

My z2300 2.1 system have all original components. But when I power it on there is a audible humming sound. The volume knob is set at ca 20% and gets really loud fast, it´s supersensitive. Adjusting the volume 1mm or even touching it and the neighbors come complaining. I have tried to find some conclusion or schematics on the internet, but nah 😞 Someone suggested replacing the capacitors would get rid of the hum, but I don´t know what to think. Replacing the IC`s may be a little to complicated for me. What´s your opinion or advice on getting rid of the humming?

[@diymariuselectro]

first of all u have to locate the problem ,in the pod or in the unit.borrow another unit to test.after that,u can find a solution.

[@SERKAN_HOT34]

Which are the right and left satellite speaker op-amps and subwoofer op-amps of the Logitech z2300 audio system? that's the important problem! and I have 5 original 4565 5 smd op-amps, I just have op-amps LM4562MA or NE5532 op-amps instead of left and right satellites, would it sound nice if I installed them? or if you can give me an op-amp recommendation that will give good sound performance, I would be very happy. happy new year to every pouch.🎅🎅🎅

[@diymariuselectro]

now I cant remember wich IC is on satelites and subwoofer,but u can follow with an active speaker and identify.I do this everytime.U should replace with same IC ,same pin configuration and low noise.I prefere original one.

[@SERKAN_HOT34]

@@diymariuselectro thank you, I have written to you before, some time ago I bought 5 LM4562 and 5 NE5532 op-amps and I installed them in quintuple order, but 1 satellite speaker stole 2. the satellite and subwoofer didn't play, then I plugged in the other op-amps, and it played 1 channel of satellite channel 2. the satellite was buzzing, so I installed the original 4565 op-amps again, but the right-left satellite rang, the subwoofer did not work, then I changed the location of the 4 op-amps on the back of the card, it improved (which op-amp of better quality do you recommend instead of the original NJM4565M jrc)

[@skrapie37]

Do you need wired remote for the subwoofer to work or can I just connect rcas?

[@diymariuselectro]

rca is speaker output.u need control pod with sub25 conector for this model.

[@DubHead69420]

Hey, great video. 🤙 I was just wondering, is that an original control pod? 🤔

[@diymariuselectro]

its not original,its made by me and soon I will make a video about it with pcb and upgrades.hope that u subscribe .

[@DubHead69420]

@@diymariuselectro, I just did, because I have tried to find one, and can only find some on e-bay, but people say they're bad. But it's REALLY cool that you want to help others. 🤙 I hope you'll have a good day, peace. ✌️

[@DubHead69420]

​@@diymariuselectro, do you know when you'll make the video? ✌️

[@diymariuselectro]

@@DubHead69420 i hope in 1 month.if u have experience wiht pcb design and want to help will be soon.

[@DubHead69420]

@@diymariuselectro, oh, alright. And I don't. Hmm, have you seen them from ebay? Maybe I could use the housing, or maybe try and find someone with a 3D-printer. 🤔

[@alinbcu]

Good job!!

[@erkandokmeci17]

Hello, my system is working properly, but when I turn up the volume on the right satellite speaker, the sound is distorted. There is no problem at low volume. What should I do?

[@diymariuselectro]

@@erkandokmeci17 tried to replace left with right satelite?

[@erkandokmeci17]

@@diymariuselectro Thanks, I'll try it when I get home tonight.

[@LUKEFOUREYES]

Hello, my Z2300 has one channel not working properly, the right satellite volume is very low compared to the left channel. I replaced the TDA7296 but the issue persist. What I can check ? Thanks

[@diymariuselectro]

U can check the preamp part.and potentiometer.

[@LUKEFOUREYES]

@@diymariuselectro yes but how I can check the preamp section? Those four ICs are the same but are configured to do different things. Do you think I can bypass them and put the input signal direct to the power amp?

[@LUKEFOUREYES]

Also is possible to have the schematic of the DIY remote pod?

[@diymariuselectro]

@@LUKEFOUREYES I found the schematic on the net.u can find it easily.

[@diymariuselectro]

@@LUKEFOUREYES I have 2 ways to repair activ speakers:M1-inject signal on both inputs and folow the signal step by step with another amp.M2-inject audio signal on the input of the power amps,and move backward to the input.this is the way u can repair it.

[@barnacleboi2595]

Cool 👍

[@tuffy16]

possible to just run sub without the volume remote dodad?

[@diymariuselectro]

yes if u diy dsub conector to replaCE THE POD.

[@JendrixHimi]

Great video ! , I want to connect my Z2300 to a big powered Sub or use the Sub as a replacement for the Z2300 , theres no way I can connect the the Sub to the PC as it doesnt recognise the signal, so how can the remote from the Z2300 be made as a controller for a different powered Sub, the Sub has no 15 pin input, just RCA can it be done sir? Thank you

[@diymariuselectro]

bro i dont understand the question,.

[@JendrixHimi]

@@diymariuselectro how to wire z2300 to bigger powered subwoofer ?

[@diymariuselectro]

pls give more details dont understant what u want to do.

[@SERKAN_HOT34]

Hello, I also have a Logitech z2300 sound system, but I did not have an original satellite speaker. I connected the Harman Kardon HKTS 16 speakers but the highs are still weak! I have a question, is it possible to make the treble and mid sounds very good? Is it possible to improve the sound amplification for the Logitech z2300? If this is possible, I would be very happy if you make a detailed video.

[@diymariuselectro]

I also use other satelites,jamo, to my sistem but the sound is very clear and I have a lot of highs.I beleive that is a problem with your satelites,the tweter is fault.u have to check it first before modifing logitech.

[@SERKAN_HOT34]

@@diymariuselectro My Harman Kardon Satellite Speakers sound good and crisp on the Harman Kardon Avr 265 Amp. But when I connect the Harman Kardon satellite speaker to the Logitech Z2300, the rhythm ringtones are very low and unrealistic, especially in metal music. I connected the pioneer ts-s20 tweeter in addition to the Harman satellite speaker to be sure. Everything is fine in the harman kardon avr 265, but the logitech z2300 is very strong, the sound quality is bad, the trebles are bad. I think the problem is not the speaker! In their discussion form they say that this problem is chronic. If you test it in different music genres, you will understand what I mean. It's not like plugging in different speakers will solve the treble problem, is it possible to do something on the circuit that will improve the treble and mids and make them better quality? I would be very happy if you share your views on this.

[@diymariuselectro]

@@SERKAN_HOT34 u cand modify the cutoff frequency and other parameters of preamp and crossover for highpass filters to adjust to your speaker,but its very dificult.its 4 opamps with low noise.u need schematic and skills.

[@SERKAN_HOT34]

@@diymariuselectro I'm technically dexterous I can repair a faulty circuit, but I don't know much about modifying a circuit, developing and designing it.

[@DubHead69420]

​@@SERKAN_HOT34, have you tried to look at an equalizer for your PC? I bet you could benefit from that. I think there is one in Windows you can use, or else you can probably find one on Google. I hope it can help you. 🤙