I have this compaq cq58 laptop 6050A2498701 MB-02 ,already tried replaced the screen with a working one but still the same issue. I noticed on the U9843 5pin chip PIN5 IN=3.3v PIN3 EN=3.3V but PIN1 OUT = 0V. anyone can help on this please
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Re: COMPAQ CQ58 white screen issue
here is the schematic -
Re: COMPAQ CQ58 white screen issue
Remove the chip, turn mb on and check voltage on all pins of U9843Comment
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Re: COMPAQ CQ58 white screen issue
@mcplslg123 thanks for the response.I removed the chip and measure all pins only pin4=3.3v the rest of the pins are 0vComment
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Re: COMPAQ CQ58 white screen issue
Just make a jumper/wire between pin 5 ( in) and pin 1 ( out). if you you have picture than change U9843Comment
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Re: COMPAQ CQ58 white screen issue
at lapfix thank you its working @mcplsg123 thank you alsoComment
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good morning
I've had this laptop sitting at home for many years with this defect, and now I have some free time and I'd like to fix it.
9 years ago I tried to sell it to a woman, she kept it at her house for a few days and then returned it to me broken (hinge). I bought the hinge and a new flat, thinking the problem was in the flat, and it wasn't...
The screen connector part is in the photo below, I measured the voltages with a simple multimeter and the measurements were as follows:
1: 1,3V
2: 1,2V
4: 1,3V
5: 1,3V... -
Hello everyone,
I am experiencing a BIOS-related issue with my Dynabook Satellite Pro C50D-B-100. When I power on the laptop, the screen stays black, and there is no response from the system. I suspect a corrupted BIOS.
I have checked the forum and the available documentation but could not find a solution specific to my issue.- Brand & Model: Dynabook Satellite Pro C50D-B-100
- Part Number (P/N): PYU13E-00C00PFR
- Serial Number (S/N): 22028896H
- System Configuration (SC): A1PYU13E1127
- Motherboard Model: IP3_ACN16_MB_V21_20211222A
- Power Input: DC 19V –
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