Dell Latitude 5590 ST FH1MNQ2
DDM80 LA-F411P REV 1
pwb mp3pg rev A00
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-
05-20-2024, 04:37 AM
-
-
hp z6 g4 workstation
mb no. Z6 G4 PCB REV 1.0
SN - CZC0058LMF
ORGNL BIN FILE ATTACHED...Today, 01:57 AM -
model: HP 15S-EQ2151AU
BOARD MODEL: DA0P5JMB6E0 rev e
anyone with a schematic for this unitToday, 01:50 AM -
this computer came in for no backlight after liquid spill
PPVOUT_LCDBKLT is 0v
PP5V_BKLT_A is 5v
PP5V_BKLT_D is 5v
BKLT_EN_R is 1.8v coming MPMU
BKLT_SDA 5.1v
BKLT_SCL is 5.1v
PP5V_SW_LCD is 5v
PP3V3_SW_LCD is 3.3v
FP800 Fuse is OK
BKLT_SD is 12v; something is shutting down the backlight
I took the measurement of all legs of UP800 and compared them to flexBV; everything seems ok
nevertheless I have replaced it not once but twice with known-goods still same issue..
...Today, 01:38 AM -
HI
I have a HP 15s-eq1096AU with a failed bios
I found a HP exe that allowed me to pull the bin and i entered my key in @8000-8030 & serial @00-FF
This booted to a screen saying clearing bios block 0-630 then restarted to blinking caplocks key reporting broken bios again
If anyone could make me a bios with the DMA info etc from this dump that would be greatly appreciated...06-03-2024, 11:39 PM -
I get backlights that stay on not there is no image. The tv does not automatically power on when plugged in either which I generally see happen when there is a fault. It responds as it should to the power button.
I checked the test points on the TCON and I have proper voltages except for at 1P15V. I don't know if that is supposed to be 15V or 5V, but either way I only get 1.134V on that point. I have 12V, 8V, VCC, and a small amount on the CKV point.
I tried heating up the SoC on the main board but that made no difference. Disconnecting either ribbon from the TCON also...06-01-2024, 08:55 PM -
Hi all, just curious if the BL_ERR signal is active high or low? TV has the 6 blink error code and I've changed the backlights as they tested questionable (4 strips tested - 203VDC, 203VDC, 203VDC and 175VDC). The new strips all tested at 175VDC. Now when I turn it on, it tries twice to come up and then the 6 blink code. During the this time the BL_ERR pin is high and drops low momentarily, then does it again on the 2nd try to boot (so Im assuming active low). The other thing is the backlight voltage ramps to ~280VDC from around ~160VDC and then back down as the TV tries to boot again. Does...06-03-2024, 07:30 PM
-
I have a 5W lamp on 12Volts battery, I want it to be half as bright, so I will add a resistor. What resistor should I supply?
A = W = 5 = 0.416mA
_ _
V 12
R = V = 12 = 28.84 Ohms (R) this is resistance of lamp
_ _____
I 0.416
So I will add one resistor 28.84 Ohms
I will have 28.84 + 28.84 = 57.6 Ohms
Or 28.84 + 28.84 = 14.42 Ohms
I don't know if it will work in series or in parallel
voltage would be 6V and amp current mA = 0.208mA We divide everything by two
W= V * I...Yesterday, 01:58 AM -
Tv powers on and has backlights but no picture.All voltages from power supply to main board are correct.06-02-2024, 09:45 PM
-
I have a 5W lamp on 12Volts battery, I want it to be half as bright, so I will add a resistor. What resistor should I supply?
A = W = 5 = 0.416mA
_ _
V 12
R = V = 12 = 28.84 Ohms (R) this is resistance of lamp
_ _____
I 0.416
So I will add one resistor 28.84 Ohms
I will have 28.84 + 28.84 = 57.6 Ohms
Or 28.84 + 28.84 = 14.42 Ohms
I don't know if it will work in series or in parallel
voltage would be 6V and amp current mA = 0.208mA We divide everything by two
W= V * I...Yesterday, 01:58 AM -
-
hp z6 g4 workstation
mb no. Z6 G4 PCB REV 1.0
SN - CZC0058LMF
ORGNL BIN FILE ATTACHED...Today, 01:57 AM -
model: HP 15S-EQ2151AU
BOARD MODEL: DA0P5JMB6E0 rev e
anyone with a schematic for this unitToday, 01:50 AM -
this computer came in for no backlight after liquid spill
PPVOUT_LCDBKLT is 0v
PP5V_BKLT_A is 5v
PP5V_BKLT_D is 5v
BKLT_EN_R is 1.8v coming MPMU
BKLT_SDA 5.1v
BKLT_SCL is 5.1v
PP5V_SW_LCD is 5v
PP3V3_SW_LCD is 3.3v
FP800 Fuse is OK
BKLT_SD is 12v; something is shutting down the backlight
I took the measurement of all legs of UP800 and compared them to flexBV; everything seems ok
nevertheless I have replaced it not once but twice with known-goods still same issue..
...Today, 01:38 AM -
I need asus zenbook bios motherboard is UX562UG
R2.1
here is my old bios....Yesterday, 12:48 AM -
Hello,
I post this in this section for a Dell Inspiron 3477 All in one as the motherboard is more close to a laptop one.
So, the issue is that whatever adapter I use, I get this screen when it starts up. I tried aftermarket adapters and original HP adapters, both 65W and 90W. Minimum requirement is 65W.
I don't have its authentic Dell adapter as I took it for free in case I manage to repair it, but the HP ones I think are pretty much identical.
First thing I checked is if the dc jack on the board has an issue but with the MM I see all three pins, ground, 19.5V and...Yesterday, 10:52 AM -
Hello everyone.
Could you please provide me the bios file for the HP EliteBook 630 13 inch G9?
The BIOS ROM is W25Q256JVEQ.Yesterday, 08:39 PM -
I have got an Steeldigi Steelshock 4 v2 controller won't draw any amp from outlet.
I have disassembled and removed the battery. I have tied to measure some points. The usb connector shows 5 volts. There are test points and shows 5 volts everywhere it should. The battery connector in diode mode shows 0.009v is it ok?
There is an U4 chip place, but no chip, between the battery connector and the charging port.
How should I progress to identify the problem?
Can anyone help me with this?...06-03-2024, 11:20 PM