If anyone has the board for the screen and is willing to sell it, I'm interested. I've also tried looking at a 'for parts' unit, but they go for $150-250 in non-working condition here in Europe so that's not a solution I'm keen on as of now. Picture of the issue, where we can clearly see some rows and lines not working: If anyone has information on the way that screen is driven, and what could be the issue, please share it as that would be of tremendous assistance. My understanding is that it's an expansion and heat-creep-related issue, and I went ahead and redid all the solder joints in the area of the screen hoping one of them was cold. Only noticed this in the last couple of weeks, and have been using the equalizer for 3 years. Then it comes back on and works again and stays like this. The right side of my analyzer display (neon tech I believe) is turning on upon power-up, before giving out for about 15mins while playing. I also have a little request for help from the knowledgeable people here, as I was unable to find an answer even after doing three days of research (shame on me maybe?): Picture of my unit running (sorry for the bad quality, will do one better once I pull it out of my system): Kept every single cap with the same rating capacity-wise, but upgraded some in their voltage ratings as it was far cheaper on large quantities (grouping with my DBX-CX3 MKI for the order).įor documentation purposes, I'll be attaching clean pictures of every board once I take them out for soldering, and I can already post my parts lists for the recap. When choosing capacitors, I went with either the cheapest 'audio' Nichicon or general-purpose caps when they presented better specs on paper (used ripple current and service hours as a metric, as they don't include their ESR ratings unfortunately). I'll be replacing all electrolytics without distinction as to where they reside in the equalizer, along with upgrading the plethora of 4558D with NE5532P. Recently, however, I've tackled some issues with my preamp, and while at it thought I'd group my order for a recap of both this equalizer and the problematic preamp. The first owner was my father, unit was never serviced, and stayed powered off for most of the last 20 years (except the last three lol). The Sound has the 'warm' feeling from old caps and the power supply caps for sure need to be replaced, hence that thread. Definitely more professional EQs on the market these days, but this can satisfy basic needs and look good doing it.I've been using this beautiful unit for a little while now and thought everything was fine, although a bit crunchy when pressing buttons. Overall, I'd recommend this EQ for its presentation and fair amount of usefulness. It's nice to be able to cut off these mostly unused frequencies that can muddy up the sound. I like that this unit has very low (16hz) and very high (32khz) adjusters. Note: if one LED is out, they'll all go out like a strand of Christmas lights. It's possible that you may luck out as well. I hear that burnt out LEDs and bulbs are common for this unit, but I got mine in perfect working order from the Salvation Army. Most of the buttons are plastic, though the bottom row is possibly aluminum. The front plate is indeed aluminum, but fairly thin and painted black. If you plan on actually using the equalizer as I do, I'm sorry, that display will probably remain off most of the time.īuild quality is solidly OK. If you want the shiny reverb lights to play along with your music (fair enough: they look neat), its best not to hook this equalizer up in the signal path. This was a fairly popular effect to add to audio systems in the early 1980s and, in my opinion, it sounds absolutely terrible. I'm sorry to say that this thing has a built in reverberation generator. It has a VFD Spectrum Analyzer (those bouncing bars that dance with your music) which is a nice touch, as well as a reverberation depth display which looks really but will most likely never be on. Each of the switches has its own LED, along with a few LED indicators on the bottom row. It does not muddy up the signal path like some other models from this era do, it has a couple neat displays on it, and the 12 bands are granular enough for basic tweaking. This is a decent equalizer for the early 1980s.
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