Forum: Troubleshooting TVs and Video Sources
06-09-2016, 09:07 AM
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Replies: 15
Views: 5,294
Re: Samsung UN46D6050 No power, blinking led twice
it sounds like you are well on your way to fixing your set, I located the power supply schematic and a service manual for a very similar model, I couldnt find that exact model. Hope this will help...
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Forum: Troubleshooting TVs and Video Sources
06-07-2016, 05:30 PM
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Replies: 15
Views: 1,792
Re: Parts: What do you keep on hand?
1/4 watt resistors of every imaginable value, 1000uf 470uf 2200uf caps in 25v and 35v, zener diode kits in 1/4 watt, 1/2 watt and 1 watt, 1n4148 diodes, 1n4007 diodes, fuses in several values. Then...
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Forum: Troubleshooting TVs and Video Sources
06-02-2016, 02:05 PM
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Replies: 35
Views: 2,918
Re: Vizio e470vl has 2 seconds to black
Im not sure on that, I try to error on the side of caution and say probably not. Budm would might have better insight into whether it would be a safe bodge or not
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Forum: Troubleshooting TVs and Video Sources
06-02-2016, 09:20 AM
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Replies: 35
Views: 2,918
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Forum: Troubleshooting TVs and Video Sources
04-15-2016, 08:54 AM
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Replies: 12
Views: 2,923
Re: TV keeps blowing fuses !
I place a 100 watt light bulb across fuse connection and see what gets hot, you have a major short somewhere. I had one last year that ended up being the primary filter cap but would only fail short...
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Forum: Troubleshooting TVs and Video Sources
03-28-2016, 08:56 AM
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Replies: 99
Views: 9,567
Re: Panasonic 50VT30 , Blinking 7 times.
@malachi yep first try, but not the first try on Panasonics probably spent 3 hours on the first one I did.
@moreno, it looks like I will be able to test that measurement as it decided to blow up...
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Forum: Troubleshooting TVs and Video Sources
03-25-2016, 06:41 PM
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Replies: 99
Views: 9,567
Re: Panasonic 50VT30 , Blinking 7 times.
moreno have to agree with you I missed the part about "works for a while" = no major shorts. Ive got a 2007 panasonic with a similar issue that Ive yet to track down, sometimes it works for days, I...
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Forum: Troubleshooting TVs and Video Sources
03-25-2016, 08:57 AM
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Replies: 99
Views: 9,567
Re: Panasonic 50VT30 , Blinking 7 times.
I went through that tpna5335 several times and couldnt find any other faults, so I plugged it back in along with the buffers and everything works. Hopefully it wont have any premature failures. On a...
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Forum: General Electronics Technical Discussion
03-22-2016, 09:07 AM
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Replies: 12
Views: 2,580
Re: Kent TR36 Golf cart charger
Mxslick I think most of the black stuff on the transformer is carbon from the triac exploding.
Budm as you suspected I got the part in last night and the gate isnt triggering, I will have to...
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Forum: Troubleshooting TVs and Video Sources
03-22-2016, 08:56 AM
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Replies: 99
Views: 9,567
Re: Panasonic 50VT30 , Blinking 7 times.
Ive been working on a 55vt30 that uses this same tnpa5335. It had the "normal" shorted igbt and diode from loose screws, I also replaced ic502 and q531 as they came in the kit and one of the gate...
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Forum: Troubleshooting TVs and Video Sources
03-14-2016, 09:22 AM
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Replies: 28
Views: 7,488
Re: RCA 42" RLDEDV3988-a flickering video
@Bufferb, sadly a lot of folks come here and receive help for their repair and never return to let us know if it was fixed and where the trouble was. As budm said we can narrow down the suspects with...
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Forum: General Electronics Technical Discussion
03-03-2016, 10:30 PM
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Replies: 12
Views: 2,580
Re: Kent TR36 Golf cart charger
Thanks I ordered a 35 amp, and will give it some heatsink paste when I put it back in. In theory it should be capable of 4200 watts/ 36v=116 amps, I dont think it outputs that many watts. At least if...
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Forum: General Electronics Technical Discussion
03-03-2016, 10:35 AM
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Replies: 12
Views: 2,580
Re: Kent TR36 Golf cart charger
That is looking very promising there are no other markings I can find, they could have been on the piece that was blown off. Any idea how many amps this thing would need? it has a 15 amp fuse would I...
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Forum: General Electronics Technical Discussion
03-02-2016, 11:37 PM
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Replies: 12
Views: 2,580
Re: Kent TR36 Golf cart charger
@ stj it says "mexico" and appears to be a solid state device of some sort. initially I thought a diode package but looking at how the circuit seems to work it seems more likely to be a relay. For...
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Forum: General Electronics Technical Discussion
03-02-2016, 09:26 PM
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Replies: 12
Views: 2,580
Kent TR36 Golf cart charger
Hi guys, was trying to get this back up and running for a friend. There appears to be some sort of relay that is blown apart, on one leg of the red wires is 128vac, on the black wire is 1.8vac the...
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Forum: General Electronics Technical Discussion
02-16-2016, 03:23 PM
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Replies: 4
Views: 1,251
Re: component id fuse or not?
Ok glad I asked, learn something new everyday. It had lots of corrosion inside the pictures are after extensive cleaning. Still got nothing out of it after cleaning, it might be a lost cause as I...
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Forum: General Electronics Technical Discussion
02-16-2016, 11:04 AM
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Replies: 4
Views: 1,251
component id fuse or not?
Hi everyone, attempting to bring this flash back to life from what appears to have been a drowning. This component appears to be a 5 amp ceramic fuse, but I am puzzled as to its location. It doesn't...
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Forum: Troubleshooting TVs and Video Sources
02-10-2016, 08:07 PM
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Replies: 12
Views: 1,779
Re: Panasonic TH42PZ80-B Lightning Victim
Usually lightning kills the A board as it travels down the catv wire, typically the hdmi chip. if you look at the qfp chip just above the vga connector it looks like it might have a pinhole blown in...
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Forum: Troubleshooting TVs and Video Sources
02-10-2016, 07:54 PM
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Replies: 25
Views: 2,637
Re: Insignia NS-LCD47HD-09 no picture
You can put a low value resistor (under 10 ohms 1/4watt) across to test and see if the lights come on, not a good idea to short it in case there is a short beyond a switched connection.
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Forum: Troubleshooting TVs and Video Sources
02-10-2016, 03:05 PM
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Replies: 25
Views: 2,637
Re: Insignia NS-LCD47HD-09 no picture
You can test (in ohms) from the side that gets no voltage to ground and reply back.
Sometimes fuses fatigue over time and there is no fault just an open connection. If the ohm reading is in kohms...
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Forum: Troubleshooting TVs and Video Sources
02-10-2016, 10:19 AM
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Replies: 25
Views: 2,637
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Forum: Troubleshooting TVs and Video Sources
02-10-2016, 10:05 AM
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Replies: 25
Views: 2,637
Re: Insignia NS-LCD47HD-09 no picture
"It seems as if the fuse located at C55 in the attached picture"
The label is a giveaway, not a fuse rather a ceramic capacitor
You can see the label for the fuse on the inverter board pic but not...
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Forum: Troubleshooting Audio Equipment
02-05-2016, 02:02 PM
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Replies: 3
Views: 1,367
Re: Mackie 1400i
Still coming up empty, closest thing I can find is 1/3 watt. Im not sure how close the tolerances have to be on these? I do have a gob of mox resistors, but not sure if they are flameproof, I guess I...
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Forum: Troubleshooting Audio Equipment
02-05-2016, 11:55 AM
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Replies: 3
Views: 1,367
Mackie 1400i
Hi guys got this one from a coworker to fix, downloaded a great service manual (major props to Mackie for actually wanting these to be fixed)
after testing I have a big list of replacement parts but...
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Forum: Troubleshooting TVs and Video Sources
02-01-2016, 11:22 PM
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Replies: 22
Views: 3,243
Re: LG 42LC7D-UK Repair
Not sure if this (http://elektrotanya.com/lg_42lc7d_chassis_lb73a_sch.djvu/download.html) is one you already have, its in deja vu format so you have to get another viewer to read it :(
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