Re: VU meter woes
When I looked at the PCB again, the +/- was at the terminal posts for the needle not the light. Everything meters correct so has to be AC. For 10¢ a piece, worth it to try the SCs.
altavek
Member
Last Activity: 01-09-2015, 03:25 AM
Joined: 06-04-2013
Location: Greenville, SC
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Re: VU meter woes
Well there was a + and a - on the board so I had assumed it DC. And I metered the bulbs at about 7VDC but if they are AC, I'll look in to the semi conductors. Thanks!Leave a comment:
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VU meter woes
So I decided to finally fixed the burnt out bulb in my Tascam M-3700's VU meters. I happened to have some nice white LEDs from some dead solar lights and thought that would be a nice change from the aged yellow of the tube bulbs that were in there. Dropped a 1k resistor in front and everything meters out fine. However, the meter that had the burnt out bulb still doesn't light up. I double checked the bulb itself and it is in fact popped. Quadruple checked everything on the PCB and everything is good. It lights up when I put the diode setting on my MM to it from various locations on the board but... -
Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
Big ups Budm!
The new rectifier has my monitor up and running like a champ! Guess it's time to get back to work…...Leave a comment:
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Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
Awesome, Thanks!Leave a comment:
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Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
So I got the diode off. Markings are IN5392 GW. Not seeing this in DigiKey nor does a google search lead me anywhere useful. Suggestions?Leave a comment:
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Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
So just tested the diodes and the top one of these 4 (D102?) metered 000. So as soon as find my soldering iron, I'll pop it out and get a replacement. Thanks!
Should I go ahead and just replace the transistors while I'm at it?...Last edited by altavek; 06-06-2013, 08:35 PM.Leave a comment:
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Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
Both the transistors say TDA2052
How would I test the rectifiers? (Sorry, been a while since electronics class)Leave a comment:
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Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
One more with the heatsink off...Leave a comment:
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Re: KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
Sorry about that. Here's the inverter board from overhead....Leave a comment:
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KRK Rokit 5 Gen 1 pops fuses as soon as it's powered on
Apparently this was a known issue with these speakers. Can't seem to find any info on what exactly causes the problem though. Usually, I would replace the entire board but that is not any option anymore. Was hoping that someone here may have either encountered these specifically or something similar. I'm including pics of the inverter board. Thanks in advance!...
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