A bus is defined as one where at least one of its signals is bidirectional (e.g. I2C, 3 wire (Select, Data IN/OUT, Clock) SPI) and an interface is where all signals are unidirectional (e.g. 4 wire SPI (Select, Data IN, Data OUT, Clock); however, certain devices can switch from a bus to an interface and vice versa e.g. Secure Digital (SD) card and certain SPI devices.
Definitions of "bus" and "interface" are distinctly different
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by inck243Thanks for any help. The board version is DAZAARMB6E0 REV: E. The bios chip is winbond 25Q64JVSIQ1736. W25Q64JV is not available in AsProgrammer -- only BV CV FV or FW_1.8c. The chip won't interface with asProgrammer and a CH341A. When I have this chip on the board, the laptop will not post but when I plug it in to power, the blue LED lights up, also the orange when the battery is connected. When I push the power on button, keyboard backlight turns on and the fan starts briefely then turns off. But I can't do anything to program this bios chip so I bought another one.
The BIOS...-
Channel: BIOS Requests ONLY!
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I have a Steinberg UR44 audio interface that I had in storage for a few years, and now that I want to use it doesn't power on. I want to take this opportunity to learn electronics repair so I am trying to repair it for learning experience.
I am looking for guidance on how to proceed with troubleshooting the problem.
I have checked the original power supply with a multi meter and it works.
I visually inspected the PCB board and don't see any issues, except what looks like a possible broken fuse but not sure. I checked it for continuity it reads 97 ohms, but...-
Channel: Troubleshooting Audio Equipment
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by snpulse3344I need to find out schematics diagram of Steinberg UR 12., pcb printed these numbers YAMAHA YF989 ZM60700, I searched everywhere but I didn't find the schematics of this USB audio interface, If anyone has it please let me know and if anyone has similar schematics diagram please let me know as well.
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Channel: Troubleshooting Audio Equipment
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by ferah831208I have an HP gaming 15-0013dx laptop , motherboard quanta G3HA with AMD Ryzen 5 cpu and Nvidia discrete grsphics card. The laptop turns on and u can see the screen polarizing on and off in a loop but no video signal. All voltages are ok measured and stable (I checked all with oscilloscope). This schematics don't have power sequence but I'm using a similar sequence from another laptop with AMD CPU and I get all to the point CPU must release apu_pwrok and apu_rst#, this signal comes valid only for the period of time the screen is polarized and they disappear and same loop behaviour (active/inactive)....
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by dicky96Hi Guys
I have a customer who has two Hitachi TVs in his bar, one is the model in the thread title and the other is a larger screen but has the same setup menu
He also has an LG TV, so three screens in the bar
I installed three Satlink ST-6503 DVB-T Modulators
This model https://www.aliexpress.com/item/32916553905.html
These connect to three satellite receivers via HDMI cables and then connect to a 4 way RF Amp that connects to the TVs on aerial cable. There is no incoming terrestrial antenna. I set the channel ID on the modulators to... - Loading...
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