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how to check a laptop motherboard fuse
Hi all.
I'd like to ask you if anyone has schematic for this motherboard or know how's backlight control pin on JP1 (pin 19) connected. As is directly to 82945PM chip or with something in between, or if connected to other. I miss PWM signal on this pin...
presario v2000 hang setup is starting windows
Hi all !
I have ACER Aspire 5630 with no backlight. I think it's the inverter, but I tried to see signal in 7 pins connector and I see that on #3 first times I turned notebook on, there was a digital signal that disappeared pressing close-notebook...
atmel 2808470
Hi.
I was looking for datasheet of main IC used on EM231 interface. It's marked ATMEL 2808470-5001
82000778
3G2397
0403 PH
and has 52 pins. Anyone knows what component is it ? I'm looking to a virgin component datasheet, if it's a standard IC programmed for this application...
Hi.
I need to convert files with .job extension (I think them where created with SofistiCAD (Germany CAD program)) in files readable from OrCAD or Protel. These files are old schematics or PCBs.
Anyone has any ideas ?
Thanks :cry:
Hi.
I need help to repair the monitor as subject.
When I power it on, there is a capacitor (C517 in schematic: 3.3uF 50V electrolitic non polarized) that explode after few seconds.
Any tips to repair it ?
Thanks
iip plus manual
Hi.
I want to ask you if anyone have a user guide and/or a service manual for this HP printer. I can't find it anywhere in internet or aon the HP site.
Thanks !!
must learn programming language
Thanks all for your responses.
At this point I'm thinking to point to use a PIC (or such microcontrollers). I was thinking to GAL or CPLD because where I work we use this thipe of programmable devices. I think I can build a 74C926 using more IC's but then the...
sn74c926
Hi. I'd like to program a GAL (or PAL... I must control what types I have in factory) to build a 74C926 (that cost very much). This is my first device to program and I never programmed in VHDL. Anyone have the program for this IC ? Or something with examples to learn VHDL language ...
Hi. I need a schematic of a circuit to read (and perhaps to program) the program contained in a 68HC705 P6ACP microcontroller (it' s mounted on a Powercom KOF-500s UPS). I need also to know if this IC is good or if it's ko. I found something for a 68HC705 C8 (or C8A) but I don't know if it is...
ic 74c926
Hi.
Do you know where to find a good guide (with examples) to know and to program PLD, GAL, PAL ?
I never used them so I don't know what are macrocells... I only know that this PLD can be used to create a logic net burning "microswitches" on their inside.
The IC (74C926) I'm looking...
74c926
Hi. I wonder if it is possible to program a PAL or GAL to "build" a 74C926 (4-digit counter with multiplexed 7-segment output drivers) and if it' s possible if anyone have the code to program this (and the PAL/GAL marking). This is because the74C926 is very expensive and I have some PAL...
ups schematic
Hi.
I'm looking for the schematics (or service manual) for this UPS (Powercom KOF-500S) that has some components fused and with the sigle unreadable.
If anyone has something...
Thanks all
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