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Search: Posts Made By: japlytic
Forum: Troubleshooting Power Supplies and Power Supply Design 05-13-2021, 11:47 PM
Replies: 3,136
Views: 920,076
Posted By japlytic
Re: Power supply build quality pictorial. part 2

Cooler Master V1200 (80 Plus Platinum certified)

Main board:
330uF 420V x2 + 390uF 420V primary filter (all Nichicon GG)
330uF 16V x6 Nichicon FPCAP before all +12V output inductors with 1000uF...
Forum: Troubleshooting TVs and Video Sources 05-11-2021, 12:38 AM
Replies: 0
Views: 46
Posted By japlytic
Pioneer VSX-932 picky with non-CEA video formats

When I was trying to route a HTPC through a Pioneer VSX-932 AV receiver via HDMI to a TV via HDMI (so that I can get surround sound from the HTPC which supports it), the AV receiver (which overlays...
Forum: Troubleshooting Game Consoles & Other Weird Devices 03-15-2021, 03:14 AM
Replies: 4
Views: 294
Posted By japlytic
Re: Generic in-dash navigation system AAOGP300194/365125

This was enough info for me to power up this unit - the boot screen is "Opal" and the home screen has the Volkswagen logo; the navigation software is NaviOne with the OS being PRIMA-v1.53 (the unit...
Forum: Troubleshooting Game Consoles & Other Weird Devices 03-13-2021, 07:39 PM
Replies: 4
Views: 294
Posted By japlytic
Question Generic in-dash navigation system AAOGP300194/365125

This unit runs on Windows Embedded CE 6.0 Core, and I am looking for pinouts of each connector.
Forum: General Computer & Tech Discussion 01-18-2021, 09:27 PM
Replies: 0
Views: 510
Posted By japlytic
Talking Laser printer firing rates

Some time ago, I came across the Integrated Circuit Systems June 1995 Data Book and found something interesting, which was the ICS1574 User Programmable Laser Engine Pixel Clock Generator which can...
Forum: General Computer & Tech Discussion 01-05-2021, 06:40 PM
Replies: 7
Views: 1,119
Posted By japlytic
Re: Psuedo-4K LCD panels

Here is a test pattern to tell if a 4K panel has actual 4K resolution:
Forum: Troubleshooting Power Supplies and Power Supply Design 01-02-2021, 06:36 PM
Replies: 1
Views: 255
Posted By japlytic
Mains inverter build quality pictorial

Calibre 240V/1000W Pure Sinewave Inverter (12V input)

On each of the output transformers at the primary side:
2x HRF3205 MOSFETs on each side of the centre tap
2200uF 16V x2
30A fuse x2

On...
Forum: General Computer & Tech Discussion 12-31-2020, 06:15 PM
Replies: 7
Views: 1,119
Posted By japlytic
Angry Psuedo-4K LCD panels

I have come across (and was burned by at least one) so called "4K" (claiming 3840 * 2160) LCD panels which have an actual resolution of Full HD (1920 * 1080) meaning that every second pixel in either...
Forum: Troubleshooting Game Consoles & Other Weird Devices 12-07-2020, 12:19 AM
Replies: 22
Views: 1,152
Posted By japlytic
Re: Nintendo Wii power supply

With regard to the particular brand of capacitor, is this a low cost compatible unit?
Forum: General Electronics Technical Discussion 11-29-2020, 01:14 AM
Replies: 3
Views: 508
Posted By japlytic
Re: Repurposing an IPAD Air 2 any ideas feedback wanted not wanting to recycle

For some time, notebooks/tablets/all-in-one PCs have used LCD panels with an Embedded DisplayPort (eDP) interface which typically has a standardized pinout except for manufacturer use pins which are...
Forum: General Computer & Tech Discussion 11-16-2020, 07:26 PM
Replies: 3
Views: 627
Posted By japlytic
Lightbulb .dlna domain names

I did a search for the .dlna domain and discovered that it is not in current use, but I think such a domain should be able to be used on local DLNA servers with an easy to use name you enter into...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-07-2020, 06:48 PM
Replies: 2
Views: 435
Posted By japlytic
Talking Mains inverters with 55 Hz output frequency

On a generic box for a mains inverter I purchased, it had check boxes for the usual 50/60 Hz with an additional check box for 55 Hz - why would that particular frequency be offered at all?
Forum: Troubleshooting Power Supplies and Power Supply Design 11-02-2020, 11:23 PM
Replies: 3
Views: 681
Posted By japlytic
What do you repurpose server PSUs for?

So far, I have repurposed server PSUs (all hot swap) for the following:

Portable multi-purpose test set with dual channel variable PSU
Variable frequency/voltage electrically isolated pure...
Forum: Troubleshooting Power Supplies and Power Supply Design 10-31-2020, 04:51 AM
Replies: 0
Views: 410
Posted By japlytic
MOSFET ratings for UPS inverter applications

I did some analysis of the ratings of the output MOSFETs in UPS inverters with a conventional output transformer (modified and pure sinewave, centre tapped and H bridge, 12V/24V/48V) and I have come...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 10-01-2020, 11:30 PM
Replies: 17
Views: 1,568
Posted By japlytic
Re: Soldering a DVI connector on a VGA-only motherboard.

Even though there may be traces on the DVI portion of the connector and even if the chipset supports it, the DVI interface on the controller may have been disabled under customization of the BIOS.
Forum: General Computer & Tech Discussion 08-30-2020, 12:50 AM
Replies: 36
Views: 1,992
Posted By japlytic
Re: Intel introduces ATX12VO spec eliminating 3.3 and 5v

I was expecting something like this would happen - we could be using server PSUs which typically have a single high output +12V rail (in a Delta DPS-1200 excluding protrustions, it has a power...
Forum: General Capacitor Questions & Issues 08-18-2020, 12:11 AM
Replies: 6
Views: 1,706
Posted By japlytic
Re: Looking for the datasheet of this 5.6uF Elna capacitor

Given the size, it has a high ripple current rating for its capacitance and is also for horizontal deflection coupling.
Forum: Troubleshooting Power Supplies and Power Supply Design 08-10-2020, 03:26 AM
Replies: 14
Views: 1,188
Posted By japlytic
Re: Lenovo 135W charger

In one AC adaptor I have handled, the X-class EMI filter capacitor has failed short circuit since the density of the capacitor was a bit too high for a particular manufacturing technique.
Forum: General Electronics Technical Discussion 07-13-2020, 06:48 AM
Replies: 0
Views: 672
Posted By japlytic
Foxconn GS1240*-1011P-** connector cross-reference

I am looking for a connector model number (cable to board, 40 pin, 0.5mm pitch) equivalent to Foxconn GS12401-1011P-7H or GS1240*-1011P-** which has been used for connection to an Embedded...
Forum: General Computer & Tech Discussion 07-13-2020, 06:46 AM
Replies: 0
Views: 749
Posted By japlytic
Extending the right to repair

And it's the right to repurpose.
Here is a good example why: https://hackaday.com/2019/07/18/put-those-ipad-displays-to-work-with-this-edp-adapter/

In the aforementioned link, it shows that an...
Forum: Announcements & Related News 07-12-2020, 03:30 AM
Replies: 0
Views: 1,703
Posted By japlytic
Mitsubishi withdrawing from LCD business - who will be next?

I've come across some information that Mitsubishi Electric will be winding up their LCD display buisness from June 2022 considering the competition in this market; also, I noted that certain Samsung...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-10-2020, 12:58 AM
Replies: 2
Views: 687
Posted By japlytic
Talking Could all new PC motherboards only require a primary 12V rail?

This is a possibility, but future PC motherboards could only require a single 12V primary rail with +3.3V/+5V (-12V is only required for PCI slots (and certain cards thereof) but not PCI Express...
Forum: General Computer & Tech Discussion 07-08-2020, 07:21 PM
Replies: 2
Views: 843
Posted By japlytic
Forum: General Computer & Tech Discussion 07-07-2020, 09:40 PM
Replies: 2
Views: 843
Posted By japlytic
Non standard PC video controllers

So far, I have identified ten PC video controllers (other than the many SVGA units) which require special treatment which are: Hercules 720x348 Monochrome, Olivetti/AT&T/PVC Display 640x400...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 07-07-2020, 09:37 PM
Replies: 11
Views: 1,582
Posted By japlytic
Re: Diagnostic card suggestion?

A number of new systems do not have PCI slots but have PCI Express slots; certain systems also output diagnostic codes via the SMBus available on PCI Express (and most PCI Express Mini and M2) slots.
Showing results 1 to 25 of 500

 
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