- sceptre x425bv tv main board smoked Q7 - 2 Updates
- dimmer return update, a little OT but thought I would share - 6 Updates
- Bose AWRC-1P - 1 Update
| Stu jaxon <stankowalski02@gmail.com>: Nov 25 12:39PM -0800 Hi Group, can someone help please,.? I put the LVDS wiring harness on wrong in the main board #T. RSC8.10B 12305.. B12083477,. and smoked Q7, I know it's a transistor, can someone tell me a part number or suggest a replacement??? |
| "ohg...@gmail.com" <ohger1s@gmail.com>: Nov 26 08:19AM -0800 On Wednesday, November 25, 2020 at 3:40:01 PM UTC-5, Stu jaxon wrote: > Hi Group, can someone help please,.? I put the LVDS wiring harness on wrong in the main board #T. RSC8.10B 12305.. B12083477,. and smoked Q7, I know it's a transistor, can someone tell me a part number or suggest a replacement??? I'm sure you're aware there are no schematics anywhere on those mains. There's a high probability that that transistor is the 12V switch used to power up the TCON on command. Remove what's left of the transistor, and see if either the collector or emitter of that transistor rings out at zero ohms to the paralleled red wires of the LVDS harness. There are typically 4, 6, or 8 wires grouped at one end of the harness that provides the 12V. If that group connects to that transistor, it's probably just a switch. If so, plug in the TV with the transistor removed and take some voltage readings. If you see 12V appear at the E or C when you power up, take a reading on the base. Your base reading will determine whether to use an npn or pnp. Alternatively, you can just jump out the E and C and call it a day. Those mains were used in low end toilets like Elements, Sceptres, Insignias, etc. If your lucky, nothing else beside the switch will have been damaged. |
| dplatt@coop.radagast.org (Dave Platt): Nov 25 10:48AM -0800 >the shipping label. When sellers are refunding before you send back the >item, are you still supposed to send it back with the prepaid shipping >label, or not? Up to now, I have sent them back. I think that's the fair and honorable thing to do... you're honoring the terms of the refund offer, as the seller is trusting you to do. Not sending back the product would be a violation of that trust (and the contract of the sale). The exception would be if the seller tells you that there's no need to return the bad unit. I've had this happen occasionally, when the unit in question was either irreparably damaged in shipment (the package must have gotten caught in a transport-belt gearbox) or where it was probably not economically feasible to repair it (a replacement battery for a cellphone which apparently had a bad control chip and wasn't "seen" by the phone). The battery vendor just asked that I dispose of the dead unit properly via an e-waste collection, rather than throwing it into the trash. |
| Chuck <chuck445@yahoonospam.com>: Nov 25 02:18PM -0500 On 11/25/20 1:48 PM, Dave Platt wrote: > "seen" by the phone). The battery vendor just asked that I dispose of > the dead unit properly via an e-waste collection, rather than throwing > it into the trash. Actually, with the horrible smell that this one dimmer still produces from the left over residue, I have no choice but to keep the sealed and ready to ship package outdoors just in a location where rain won't bother it. It would have been a good candidate for just throwing out, but sending it along with the two unused ones. Just waiting on the seller's return address. I did have one item I actually tossed a couple of years ago and that was a replacement mercury vapor ballast for one that failed after many years. Within a short time, the replacement also failed and smoked up the outdoor container it was in badly enough that I had to replace that too along with a new ballast. In that case, the seller just wanted to see pictures and then told me to throw it away. That sealed ballast, being outdoors, did trip the breaker when it went bad but not before smoking up its chassis. |
| Phil Allison <pallison49@gmail.com>: Nov 25 12:30PM -0800 Chuck wrote: ============ > have been registered on eBay, that I left a negative feedback. Really, > this seller should have not haggled on this and refunded immediately > especially after I submitted the pictures. ** Pics of the damage you caused by stupidity ? You have been less than honest about what you were *really* doing all along. What PSU was used ?? What LED lights ? Did you make a wiring error ? You sound like an expert at blame shifting. ..... Phil |
| Chuck <chuck445@yahoonospam.com>: Nov 25 03:48PM -0500 On 11/25/20 3:30 PM, Phil Allison wrote: > Did you make a wiring error ? > You sound like an expert at blame shifting. > ..... Phil Uh, excuse me, but I have already made myself quite clear and won't elaborate further. If you doubt, then order one and have a load drawing 13.8 VDC at 7 A from a linear supply and see what happens in a few hours. You said before that the 12-24 V was missing information. Who would ever know that it is only a 12V device because that's not what they advertise. In addition to no heatsinking. I think I've been clear. I thought you were helping, but now I question YOUR motives. |
| Phil Allison <pallison49@gmail.com>: Nov 25 03:33PM -0800 Chuck the Troll puked: ================== > > You sound like an expert at blame shifting. > Uh, excuse me, but I have already made myself quite clear and won't > elaborate further. ** So now you post two, great big lies. Now I know you are hiding the truth. Thanks for removing all doubt. > If you doubt, then order one and have a load drawing > 13.8 VDC at 7 A from a linear supply and see what happens in a few > hours. You said before that the 12-24 V was missing information. ** Not what I wrote at all - liar. > Who would ever know that it is only a 12V device ** That is nothing like what I wrote !!. ------------------------------------------------------- You are one pig ignorant ass aren't you ? ..... Phil |
| "Peter W." <peterwieck33@gmail.com>: Nov 26 04:33AM -0800 Chuck: In short order, you will learn several things about the drongo from down-under: a) The sun shines from its fundament, and only from its fundament. Whatever else you might see is only a poor substitute for the sun, so do not be mistaken! b) Were it to behave face-to-face as it does here, it would be dead. Australians are not anywhere near as tolerant as Brits or Americans of that sort of idiocy. c) It is on very powerful meds. When it takes them properly, it is not a half-bad tech. When it does not, it remains a not-half-bad tech, but all you will see is that other half. In general, it is best ignored. |
| Cyndi Tiger Dobrinic <tiger56usmc@gmail.com>: Nov 25 03:30PM -0800 |
| You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page. To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
No Response to "Digest for sci.electronics.repair@googlegroups.com - 9 updates in 3 topics"
Post a Comment