dell model e178fp

chetreynolds

chet

Join Date: Aug 2010

Posts: 77
#1

dell model e178fp

02-25-2011, 10:50 AM

I need help with a dell e178fp monitor . The main board doesn't turn on the invertor.
When I jumper collector to emiter of the power on and dimmer transistors on the invertor the screen lights up with no data white screen .
On the main board there are two regulators which have 3.3vdc and 1.8vdc output .
Attached Files
Tags: None
chetreynolds

chet

Join Date: Aug 2010

Posts: 77
#2

02-25-2011, 11:10 AM

Re: dell model e178fp

Problem resolved I found a bad connection on the ribbon cable to the power switch .
Comment
PlainBill

Badcaps Legend

Join Date: Feb 2009

Posts: 7034

Country: USA
#3

02-25-2011, 01:08 PM

Re: dell model e178fp

Originally posted by chetreynolds

Problem resolved I found a bad connection on the ribbon cable to the power switch .

Good job!! That would have been about #25 on my list of things to check.

PlainBill

For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.
Comment

Previous template Next

Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?

by Bowline

My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
06-11-2025, 10:13 AM
Dell Latitude 5420 does not start (no post) need help to find the reason why

by F R 2568

Hello all,

this is my first post, so if I make mistakes please do not hesitate to point them out, thank you in advance.

I got a Dell Latitude 5420 (Service Tag: 7RFM6D3, Motherboard: GDF40 LA-491P Rev.: 2.0 (A01)) which does not start and I want to repair it. These are the symptoms:

If the laptop is only connected to the AC adapter (battery removed):

When I press the power button, the keyboard backlight and the display backlight are turning on. Caps key light is lightning, but key does not respond to pressing it.

The power/battery...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
01-08-2025, 05:45 AM
Looking for Dell Latitude 5520 / 5530 / 5540 RJ45 network connector replacement

by diamon

I have a Dell Latitude 5530 with a damaged RJ45 network connector. See the attached pictures.

Have already searched on Farnell / Aliexpress / Ebay and had contact with several suppliers on Aliexpress and Ebay, but they cannot deliver this connector.
Is there someone inside the EU, who has these connector(s) or perhaps defective motherboard(s) for these laptop models I have mentioned in the topic title.

Pictures of these boards:
Dell Latitude 5520 https://www.ebay.com/itm/256052956663
Dell Latitude 5530 https://www.ebay.com/itm/125844181534
Dell...

4 Photos
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
02-28-2024, 12:51 PM
Dell G5 SE 5505 - "Invalid memory installed" after BIOS update.

by lalle-

Hello!

I have a problem with a Dell G5 SE 5505 laptop that I hope someone can give me a few pointers on.
[OK, it's not really a laptop, I'm running the motherboard on my desktop with only cooling, RAM and an M2 drive attached.]
I had some performance issues, so I decided to update my BIOS from 1.7.0 to the latest version, 1.20.0.
The computer restarted and the update dit not want to continue without a battery connected, even though I used dell's method of bypassing this requirement.
I tried updating to a custom BIOS from Reddit user Satori_Nori https://www...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
08-11-2024, 02:01 PM
Dell Precision T1650 MT Workstation bricked after BIOS update

by trix11

I have a Dell Precision T1650 MT workstation (of the following spec.) that was bricked yesterday when attempting to update the BIOS from A27 to A28 per:
- https://www.dell.com/support/home/en...-t1650/drivers > Dell Precision T1650 System BIOS

- Dell Precision T1650 mid tower Workstation
- Xeon E3-1225 V2
- 32Gb PC3-12800E RAM
- 4Tb SATA HDD
- motherboard: Dell part: 0C3YXR CN-0C3YXR-72200-39C-01GR-A02

I see now that others have experienced like issues e.g.:
- https://www.dell.com/community/Prec...
- Channel: BIOS & Schematic Requests!
10-24-2022, 10:35 PM
Loading...
No more items.

dell model e178fp

dell model e178fp

Comment

Comment

Related Topics