RSMRST# Signal in CQ40 in Both AC and Battery Mode

-

RSMRST# Signal in CQ40 in Both AC and Battery Mode


RSMRST#
When +3valwp and +5valwp always power generated standby IC (TPS51125) output or release R_EC_RSMRST#( this is power good signal which is connect to ICH9 (Southbridge)D22 point) signal this signal is connected to EC_RSMRST# through R354 resistance .So there is difference between AC Mode and Battery Mode:
On off Operation in AC Mode
On off Operation in Battery Mode

                                               On off Operation in AC Mode


In AC Mode adaptor is connected and system get power from adaptor pin (VIN Signal) .When VIN is input from DC jack it Power lm393 PU102 and it release ACIN from Pin no.7.

When ACIN signal input come from LM393 to EC pin no.127 EC disable ACOFF pin no.27. This pin no.27 connected with PU302 pin no.2 . pu302 is Schmitt-trigger inverter IC its Output goes high when input is low. By this PQ308 gate operate and low the drain input from VL LDO Supply which is connected with PQ305 and PQ306 gate pins. When gates of PQ305 and PQ306 have no power by this pull high the ENTRIP1 and ENTRIP2. when ENTRIP1 and ENTRIP2 high Standby IC (tps51125) start making +3valw and +5valw supplies.


 After making always supplies this IC release Power good signal it connected with EC_RSMRST# which make RSMRST# signal disable(when # signals has 3.3v it counts as disable) for further Operation.


                                                      On off Operation in Battery Mode
In this Mode power for system is Applied by Battery through discharging Mosfet PQ102 .When Power Button is Pressed by user it low (0v) on/offbtn on pin no.32 of EC. when on/offbtn is pressed EC Triggered PWRBTN_OUT#  from pin no.117.


PWRBTN_OUT# go to ICH9 to intimate system to resume (release pause btn RSMRST#).ICH9 disable the RSMRST# (3.3v) signal and I/o release the EC_ON which power the gate of PQ307 then its drain is short to ground. Drain of PQ307 is connected with PQ305 and PQ306 gate pins.


When gates of PQ305 and PQ306 have no power by this pull high the ENTRIP1 and ENTRIP2. when ENTRIP1 and ENTRIP2 high Standby IC (tps51125) start making +3valw and +5valw supplies. After making always supplies this IC release Power good signal it connected with EC_RSMRST# which make RSMRST# signal disable(when # signals has 3.3v it counts as disable) for further Operation

 

Comments

Post a Comment

Popular Post

My Printer Not Connecting

-
Image
 If you are having an issue with installing a printer or getting other issues dealing with a printer or printer setup on the computer, try this troubleshooter.  If a step doesn't apply, skip to next step  1. Turn computer off  2. Turn printer off 3. Disconnect power to printer for 2 minutes  4. Turn printer back on  5. Wait one minute  6. Make sure all connections are good  7. If your printer has both parallel and USB connectors, only have one of the two connected and not both. The USB is faster. (most new systems do not have parallel connections)  8. Turn computer back on  9. Make sure the printer has ink  10. Is the printer networked? If so is it connected to the network via computer or router. If it is connected via a computer and the computer is off, the other systems will not see it.  11. Make sure the dependencies to the print spool is started  12. Check the manufacturer of the printer to see if there is a newer driver for the printer.  13. Check the manufacturer for any patc
Read more

RESISTOR TESTING

-
Image
1- Visual inspection: Checks for missing or any burning on resistance.   2- Using Digital Multimeter: You can check the resistor resistance by selecting the ohm range in the digital multimeter, If the resistor is in circuit, you will generally have to remove the resistor so you are testing only the resistor value and not the other components in the circuit.   Connect test probes across the two points of the resistor as shown in the photo, polarity isn’t important, value of resistance shown is 9.86 kΩ. Note: All resistors have a specific tolerance rating. The tolerance rating is marked by a color band on the end of the resistor’s body, normally the band is gold indicating 5 % tolerance. If the tolerance band is silver, then the rating is 10 %. How to test SMD Resistors: Because of the small size of SMD resistors, there is often not room for the traditional color band code to be printed on them. Therefore, new resistor SMD codes were developed. The most commonly seen codes are the three
Read more

HARDWARE TECHNICIAN

-
Image
   As a Laptop technician, you must understand a basic rule of business, time is money.      Whether you are boss or work for someone else, the ability to identify and isolate a Laptop fault quickly and decisively is very important to the success of your business. It requires some common sense, and a little bit of focus. It also requires an understanding of the troubleshooting process, and reliable plan of action. Even though the number of Laptop configuration and setups are virtually unlimited, the methodology used to approach each repair is always about the same. This introduction is intended to isolate the concepts of basic troubleshooting and show you how to apply basic laptop repair steps that will help you narrow the problem down before you even take a screwdriver to the Laptop. By applying a constant technique. You can safe precious time from every laptop repair. The General Troubleshooting Steps Regardless of how your particular Laptop might be, a dependable Troubleshooting ste
Read more

How to Hack WiFi Password: Guide to Crack Wi-Fi Network

-
What is Cybercrime? Cybercrime is defined as an unlawful action against any person using a computer, its systems, and its online or offline applications. It occurs when information technology is used to commit or cover an offense. However, the act is only considered Cybercrime if it is intentional and not accidental. In this tutorial, you will learn: What is Cybercrime? Example of Cybercrime Cybercrime Attack Types Cyber Crime Tools Example of Cybercrime Here, are some most commonly occurring Cybercrimes: The fraud did by manipulating computer network Unauthorized access to or modification of data or application Intellectual property theft that includes software piracy Industrial spying and access to or theft of computer materials Writing or spreading computer viruses or malware Digitally distributing child pornography Cybercrime Attack Types Cybercrime can attack in various ways. Here, is some most common cybercrime attack mode: Hacking: It is an act
Read more

INTRODUCTION TO CHIP-LEVEL TECHNOLOGY

-
Image
Chapter 1: Introduction to Chip-Level Technology     1.1 What is Chip-Level Technology?   Explanation of chip-level technology: Delving into the microscopic world of electronic components and circuits. How chip-level technicians work at the heart of devices to diagnose and repair intricate issues.  1.2 Importance of Chip-Level Expertise   Highlighting the significance of chip-level technicians in repairing complex electronic devices. Examples of devices where chip-level expertise is crucial: smartphones, laptops, gaming consoles, and more Chapter 2: Basics of Electronic Components   2.1 Understanding Electronic Components Introduction to fundamental components: resistors, capacitors, diodes, transistors, and integrated circuits (ICs). How components combine to create circuits, allowing devices to function. 2.2 Role of Components in a Circuit Explanation of how each component contributes to the overall operation of a circuit. Examples: res
Read more

The relationship with future AI and IT technician?

-
Image
  Introduction As the field of artificial intelligence (AI) continues to grow and evolve, the relationship between AI and IT technicians is becoming increasingly important. In this article, we will explore the role of IT technicians in the integration and maintenance of AI technology, as well as the potential for collaboration between AI and IT professionals. The role of IT technicians in the integration and maintenance of AI technology: As AI technology becomes more prevalent in the workplace, IT technicians are playing an increasingly important role in its integration and maintenance. This can involve tasks such as: ·       Installing and configuring AI software and hardware. ·       Troubleshooting and resolving issues with AI systems. ·       Monitoring and maintaining the performance of AI systems. ·       Updating and patching AI software to ensure it remains secure and reliable. To effectively carry out these tasks, IT technicians must have a good understanding o
Read more

Windows S Mode - how to disable it and switched to windows 10 pro

-
Image
Windows S Mode is a security feature found on select freshly sold computers, such as Samsung laptops and Microsoft Surface tablets. It effectively prevents the user from installing anything other than what is available in the Windows 10 Store, and they can only use Edge as their browser and Bing as their search engine. This inhibits the installation of Chrome, classwork applets, and Zoho Assist. If you are unsure whether it is activated, go to the About area of your Windows 10 pro version. Open the Start Menu . This is the button in the lower-left corner of your screen shaped like the Windows logo. Then click Settings . This is the button with the gear icon just above the power options. In the Settings window, click System . Then click About in the left sidebar . You will find what mode of Windows you have under the Windows Specification section. Disabling is fairly easy to do, and ensure them that nothing will explode on their device if they do.  Windows throws messages at them like
Read more