LG 32LG30 intermittent gray screen when powered on, power cycling fixes it and it will run indefinitely after that. Doesnt seem to have anything to do with how warm the TV is running, ie can run for hours, then power cycle will cause the grey screen.
LG 32LG30 intermittent gray screen when powered on, power cycling fixes it
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by high-techHello everybody, I could use some help on this one... It's got me guessing...
I took pictures of all the boards and the pin out of the connector on the power supply that goes to the main board... I measured all the pins in relation to chassis ground, here are the result.
(B13v)1. 12.7 volts cycling (Vamp) 2. 12.7 volts cycling
(B13v)3. 12.7 volts cycling (PWM5) 4. 1.0 volts cycling
(OD_LE)5. 2.8 volts cycling (PWM4) 6. 0.9 volts cycling
(OD_ON)7. 2.8 volts cycling (PWM3) 8. 0.9 volts cycling
9. ground (PWM2) 10. 0.9 volts cycling... -
This specification for the Huawei MateBook MATEBOOK 16 SPACE GRAY Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the MATEBOOK 16 SPACE GRAY boardview and MATEBOOK 16 SPACE GRAY schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification,...09-07-2024, 05:20 AM
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This specification for the Samsung 13.3IN CHROMEBOOK 2 8GB/128GB FHD QLED MERCURY GRAY I3-10110U Chromebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 13.3IN CHROMEBOOK 2 8GB/128GB FHD QLED MERCURY GRAY I3-10110U boardview and 13.3IN CHROMEBOOK 2 8GB/128GB FHD QLED MERCURY GRAY I3-10110U schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help...09-07-2024, 12:10 AM
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by usbdeviceHi all
There's two other threads about this monitor with seemingly the same problem. The problem was resolved in one case by replacing the entire PSU board and in the second one by replacing an unknown IC.
https://www.badcaps.net/forum/showthread.php?t=50657
https://www.badcaps.net/forum/showthread.php?t=40512
The first one has pictures of the pcbs and I noticed that there's one IC and assorted caps not populated on mine (but the PCB itself looks identical) so I thought that'd warrant a new thread.
It's my dad's old monitor. He...-
Channel: Troubleshooting Computer Displays
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by iMuhtasebA2279 (14" M2 Pro | 820-02841)
No power - switches to 20V for a swift moment then starts cycling/switching on all USB-C ports.
Board is clean.. I looked over it three times and found little corroded caps for a display data lines.. replaced them and they have nothing to do with the issue.
Customer is using a branded USB-C to MagSafe cable. I looked for shorts (diode mode) nearly all lines, PPBUS, 3v8_AON, 5V_S2, 1v2_S2, 1v2_AWAKE, 1v8_AON.. and coils around master PMIC and slave PMIC; all reads normal.
I suspected that ISL might be bad, took an educated... - Loading...
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