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Search took 0.01 seconds. Search: Posts Made By: lotas
Forum: Troubleshooting TVs and Video Sources Today, 02:24 AM
Replies: 8
Views: 124
Posted By lotas
Re: toshiba 50L4333D TV with a LG 32L4300 board low brightness

"lg"?
Forum: Troubleshooting Computer Displays Yesterday, 03:30 PM
Replies: 1
Views: 12
Posted By lotas
Re: EIZO SW3031W monitor blue color instead of black

https://www.youtube.com/watch?v=Ob3nz_rXarQ
Forum: Troubleshooting Game Consoles & Other Weird Devices 08-09-2022, 11:41 AM
Replies: 9
Views: 138
Posted By lotas
Re: PS4 CUH-2115B Slim All Controllers Do Not Sync By Bluetooth or USB

Check the USB signal lines (D+, D-) with a multimeter for resistance to ground.
And with dumps, be very careful, not a correct entry or someone else's dump, turning it on without NOR Flash can lead...
Forum: Troubleshooting Game Consoles & Other Weird Devices 08-08-2022, 02:46 AM
Replies: 3
Views: 102
Posted By lotas
Re: playstation 5 digital firmware dump

With someone else's dumps, get a brick, PS has a binding to native chips (ID, keys).
Forum: Troubleshooting Computer Displays 08-04-2022, 09:08 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

If this problem repeats, it is better to replace it (1117 33), it happens that they do not work correctly when cold, but it is worth heating it with a hairdryer or a soldering iron and it starts...
Forum: Troubleshooting Computer Displays 08-04-2022, 08:47 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

Congratulations, the monitor is back in service.
Forum: Troubleshooting Computer Displays 08-04-2022, 08:24 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

Check the connector and the passage of 5v to 1117 and the capacitors in the power supply on the 5v bus.
Forum: Troubleshooting Computer Displays 08-04-2022, 06:00 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

It is unlikely that 8912k suffered, 3.3v not only power it, you can check by applying 3.3v from a laboratory power supply to this point and check.
Forum: Troubleshooting Computer Displays 08-04-2022, 04:02 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

8912k - APE8912
Forum: Troubleshooting Computer Displays 08-04-2022, 03:27 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

This regulator is the same (1117 33) with a fixed voltage of 3.3v.
Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 08-03-2022, 07:04 PM
Replies: 2
Views: 90
Posted By lotas
Re: epson xp-415 dump (Help)

epson xp 415 dump
Forum: Troubleshooting Computer Displays 08-03-2022, 11:50 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

You have a low voltage at the input should be 5v, at the output 3.3v.
Forum: Troubleshooting Computer Displays 08-03-2022, 07:59 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

What are the voltages relative to earth at these points?
Forum: Troubleshooting Audio Equipment 08-03-2022, 05:21 AM
Replies: 3
Views: 63
Posted By lotas
Re: Wharfedale Titan Sub A12 , schematic/advice please

schematic
Forum: Troubleshooting Computer Displays 08-03-2022, 03:36 AM
Replies: 24
Views: 269
Posted By lotas
Re: LED 27" monitor PSU issue - np power to LED array

Your problem may be in the motherboard, since 5v power is supplied to the board, but there is no command to turn on "EN".
Check power to DC-DC converters.
Forum: Troubleshooting Audio Equipment 07-30-2022, 11:51 AM
Replies: 41
Views: 10,313
Posted By lotas
Re: LG Xboom PK5 demo mode..probably

https://www.badcaps.net/forum/showpost.php?p=1066861&postcount=34
Forum: General Electronics Technical Discussion 07-30-2022, 10:37 AM
Replies: 2
Views: 90
Posted By lotas
Re: Programmer eeprom

Try the latest version.
Forum: Troubleshooting TVs and Video Sources 07-29-2022, 12:35 PM
Replies: 1,290
Views: 440,987
Posted By lotas
Re: Eeprom dump thread!

Ok, congratulations.
Forum: Troubleshooting TVs and Video Sources 07-29-2022, 04:21 AM
Replies: 1,290
Views: 440,987
Posted By lotas
Re: Eeprom dump thread!

try
Forum: General Electronics Technical Discussion 07-27-2022, 04:16 PM
Replies: 9
Views: 185
Posted By lotas
Re: JCD 8898 zener diode ratings

The zener diode there is at 5.1v, it goes to the XC6206P332MR (3.3v, 662K sot23), and it powers the MS51FB9AE - Nuvoton controller.
Forum: Schematic Requests ONLY! 07-26-2022, 04:30 PM
Replies: 2
Views: 206
Posted By lotas
Re: Samsung Galaxy Tab 3 SM-T210/T211 schematics

Samsung Galaxy Tab 3 SM-T210/211 Schematics
Forum: Troubleshooting Power Supplies and Power Supply Design 07-25-2022, 09:30 AM
Replies: 3
Views: 293
Posted By lotas
Re: Component identification help

INA220AIDGSR
https://aliexpress.ru/item/1005002616427573.html?gatewayAdapt=glo2rus&sku_id=12000021411575414
Forum: Troubleshooting Power Supplies and Power Supply Design 07-25-2022, 06:31 AM
Replies: 6
Views: 145
Posted By lotas
Re: Help needed to revive dead Asus AC adapter

You should have a big capacitor around DC 300v, check that capacitor.
Forum: Troubleshooting Audio Equipment 07-22-2022, 04:57 PM
Replies: 6
Views: 214
Posted By lotas
Re: Corolla FM CD Cassette Player issues

Gently lift the supercapacitor and carefully remove this glue without damaging the traces underneath (there is a lot of damage from such glue to the equipment, corrodes metal, damages the soldering...
Forum: Troubleshooting TVs and Video Sources 07-20-2022, 02:13 PM
Replies: 38
Views: 794
Posted By lotas
Re: Grundig 49 VLE 420 BN - no picture

With the marking "220" this is your choke (inductor) and they should be short.
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