- Old plasma screen Y_SUS anomalies - 5 Updates
- Split HEX files.. - 2 Updates
| "ohg...@gmail.com" <ohger1s@gmail.com>: Oct 11 01:19PM -0700 On Saturday, October 9, 2021 at 12:17:58 PM UTC-4, legg wrote: > Couldn't the connections to that single pixel be disconnected, > producing a black t on the screen, and non-popping parts? > RL Yes. Learned from experience. I never touched a plasma until I carefully went over the entire display, including right to the edges. A single burned pixel meant the end of the road. I repaired at least a hundred of those series when I was an LG ASC. The vast majority were bad IPMs on one sustain or the other, and once in a while a bad buffer board. I don't recall ever seeing a bad control, main, or power supply. |
| legg <legg@nospam.magma.ca>: Oct 12 12:32AM -0400 On Mon, 11 Oct 2021 13:19:51 -0700 (PDT), "ohg...@gmail.com" >> RL >Yes. Learned from experience. I never touched a plasma until I carefully went over the entire display, including right to the edges. A single burned pixel meant the end of the road. >I repaired at least a hundred of those series when I was an LG ASC. The vast majority were bad IPMs on one sustain or the other, and once in a while a bad buffer board. I don't recall ever seeing a bad control, main, or power supply. So the bad cap plague on the PSU 5V rails didn't cross your bench? It seemed to be reported to show up in a lot of units, even when opened up for other issues. No connector issues? What were the functional symptoms at turn on for a burnt pixel, (assuming one was missed)? I'm waiting for 74AV540/541SJs for the Y_SUS, before trying to straighten out the popping resistor issue on the buffer board. Not sure what a burnt pixel looks like - a discoloration on the unpowered screen? What I'm worried about is anything that could result in a repeatable chain of damage in assemblies that are working. Don't want to kill functional IPMs. RL |
| legg <legg@nospam.magma.ca>: Oct 12 10:10AM -0400 On Mon, 11 Oct 2021 13:19:51 -0700 (PDT), "ohg...@gmail.com" >> RL >Yes. Learned from experience. I never touched a plasma until I carefully went over the entire display, including right to the edges. A single burned pixel meant the end of the road. >I repaired at least a hundred of those series when I was an LG ASC. The vast majority were bad IPMs on one sustain or the other, and once in a while a bad buffer board. I don't recall ever seeing a bad control, main, or power supply. By, the way, a close inspection with a flashlight showed no visible irregularities in the unpowered screen's appearance that couldn't be removed with a damp cloth. RL |
| legg <legg@nospam.magma.ca>: Oct 12 10:26AM -0400 On Mon, 11 Oct 2021 13:19:51 -0700 (PDT), "ohg...@gmail.com" >> RL >Yes. Learned from experience. I never touched a plasma until I carefully went over the entire display, including right to the edges. A single burned pixel meant the end of the road. >I repaired at least a hundred of those series when I was an LG ASC. The vast majority were bad IPMs on one sustain or the other, and once in a while a bad buffer board. I don't recall ever seeing a bad control, main, or power supply. I came across a service advisory for this model that gave me a chuckle: "2006 LCD, PDP, & MDPs that use the ARM CPU & Micronix Flash Memory. Symptom: During a specific date range the customer may turn on the TV and there will be no video or audio. The problem will first occur: Jun 20th, 2006, 14:03 ~ Jun 21st, 08:14. Then it repeats every 194 days. Solution: Temporary fix is a hard reset (unplug for a few seconds). New firmware is available as a permanent fix. The update needs to be done by a service center. Models: 32LC2D, 37LC2D, 42LC2D, 42PC3DV, 42PC3DVA, 42PC3D, 50PC3D, 50PX2D, 50PX2DC. Tools Required: Computer Null Modem Serial Cable Tools Supplied: Instructions Firmware Files DTVLab Update Software Versions: 32LC2D-UD : Ver3.06.1 37LC2D-UD : Ver3.06.1 42LC2D-UD : Ver3.05.1 42PC3DV-UD(42PC3DVA-UD) : Ver3.06.1 42PC3D-UD : Ver3.07.1 50PC3D-UD : Ver3.07.1 50PX2D-UD(50PX2DC-UD) : Ver3.10.1 42PC3DV-UD,42PC3DVA-UD : the same as S/W 50PX2D-UD,50PX2DC-UD : the same as S/W " Would have thought that such an advisory would have generated a surplus of support tools that would remain for later employment . . . but nada. RL |
| "ohg...@gmail.com" <ohger1s@gmail.com>: Oct 12 09:17AM -0700 On Tuesday, October 12, 2021 at 10:24:56 AM UTC-4, legg wrote: > generated a surplus of support tools that would > remain for later employment . . . but nada. > RL Honestly, I don't remember that at all. If I read that bulletin, then I forgot about it. I also don't recall ever getting complaints about that problem. |
| Yaseen Ansari <yaseenansari1@gmail.com>: Oct 11 02:22PM -0700 On Thursday, August 26, 2021 at 10:07:03 PM UTC-7, John Robertson wrote: > the late 90s and early 00s, so you should be able to track it down. > 12 years is not a record for oldest Usenet post responded to! > John ;-#)# Thanks John, Yes you are right, I can find DOS based programs. Unfortunately I am limited to the option of using WINDOWS only. I did find a programming by python tool (https://phyton.com/support/updates) window based but the splitted output file is not correct. |
| John Robertson <spam@flippers.com>: Oct 12 12:04AM -0700 On 2021/10/11 2:22 p.m., Yaseen Ansari wrote: > Thanks John, Yes you are right, I can find DOS based programs. > Unfortunately I am limited to the option of using WINDOWS only. > I did find a programming by python tool (https://phyton.com/support/updates) window based but the splitted output file is not correct. You can run DOS BOX in a Windows machine... https://www.dosbox.com/ I use it on XP for running my old Data I/O DOS only program. John :-#)# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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