I. SEARCH FOR SHORT COMPONENTS
Before analyzing the problem of Motherboard Dead total thing
The first thing we do is make sure the condition
The motherboard is in short condition or not, that is with
Using an adapter that has an indicator light on
Adapter (do not forget to remove the battery c mos before starting
Analysis). Symptoms of short motherboard is on the adapter
Mounted on mobo, adapter blinks or off or dims.
Another way to determine the motherboard in a short condition that is
Measure the voltage V_in on the positive jack on the mobo (black probe
On the chassis / gnd ... red probe on Plus jack) if multimeter
Zero, or down ride either on avo digital or on avo
Analog (up needle tunnel).
Note: Make sure the adapter is in good use.
If the analysis ensures the condition of the mobo in a short condition, p
What we need to know is the power sequence or power sequence
Components on the mobo is by looking at the mobo scheme
If schematic has not been obtained another way to see power
Sequence is to see the general layout of the power structure
Laptop motherboard:
Seen clearly the arrangement of the power jack to the diode / transistor divider
Pass the ic battery and forwarded to dc / dc power supply PU.
If we have a scheme we can directly search
Short components based on the order / arrangement of that component
Bearada on lane / conductor power supply.
If it does not have a schema, we first record the component
Based on its classification by looking at general layout power
. Identify the power components that are in the path
Power general layout on the mobo in question.
Starting from Jack power pay attention around jack + have
Relation to what components by looking at trace paths on
Circuit. Usually to component diode, mosfet divider, fuse or
Resistors.
Do the same method on the scheme search above
, Albeit a bit groping with no schematics but components
Power generally in accordance with the above components with the code
Components added with the letter P indicate
Component is part of power supply component.example PQ
= Power transistor, PC = Power Capasitor, PR = Power Resistor or
PD = Power Diodes.
See component letter code, location code and inner terms
Motherboard in this link:
Perform PU identification by looking at the physical form of PU on mobo
Concerned. Record the serial icnya by looking at the datasheet
On link all datasheet.
Or see the general series PU battery ic and PU dc / dc power supply on
Link below:
To simplify the Search we must know the essence of
Short (short circuit) problems must be related to the problem
Power, short due to the negative and positive poles connected
On the circuit conductor or component in the circuit
Accelerate the identification of short components, we are just looking
On power module components only.
Identify the power components that are often found to be the cause
Short on the link below:
Note: It is necessary to identify the physical components of the suspect
Broken, cracked, burned, corrosion, corrosion etc to speed up
Search the cause component short.
The short cause is not only caused by components, but also
Can be caused intermittently on the circuit board.
The word "intermittent" in electronic repair means
Is: sometimes the equipment will work and sometimes
no. Intermittent problems can occur in any conductor and
In every circuit. If you want to see errors (for example,
Sometimes display sometimes not) Laptop works well
All day long without any problems and can last as long
All day and did not have a chance to see the error.
However, sometimes the Laptop does not work at all.
Problems can be caused by dry joints, broken tracks,
Loose / cracked / bad connection in the area of conductor or lane.Bad
Components / crashes and etc. These are the problems that have been
Causing many electronic Repairers to become frustrated and
If it does not have a better way to solve
Problem, may lose valuable time.
How to search and troubleshoot intermittent issues on links
below this:
II. SEARCH FOR DAMAGED COMPONENTS / DISCUSSED CAUSE OF DEATH
TOTAL.
Before doing a search the first thing is
Ensure the bios files and ic are in good state. Connect bios
Has relay power management, permasalahn bios file or icnya
Damaged can be the cause of the total dead laptop (temporarily
The contribution of voltage flows throughout the conductors and components
Mobo)
For more details see the link below:
And bios links below:
Bios power layout and bios chip identification that dead link below
This:
As with the mobo short search, the search component is off
Also need a power supply component and schematic path scheme
Knows General Layout power for mobo that do not yet have
scheme.
The difference on the mobo is dead. We can do a search
Easier because the adapter can be installed continuously for
Search (except at disposal and installation
Component) so we know that on that component
Passed voltage declares the previous component
works fine.
Different from looking for short components ie by removing
Components that are suspected of causing short or on the cause path
Short, the search for dead components is done by measurement.
The way of measurement can be seen in this link:
The way the above measurements are tested on components without
Power or not installed on the motherboard.
Here's how to easily measure the good components at the time of the mobo
Powered (attached adapter):
1. Diode (direct current) black probe on chassis, red probe on -
Diode (power in ada) red probe on diode + (power out there)
The diode is in good condition.
2.Resistor (Direct current) is equal to diode measurement (only
Apply to Power Resistors only)
3.Mosfet .probe black on chassis .probe red on feet 1,2,3
Vol_in there are legs 5,6,7,8 vol_out there (P-chanel) mosfet inside
Good state (for measurement of power divider voltage 4 feet
Gate while we ignore) the reverse measurement for
Mosfet n-channel)
Identifying a damaged mosfet is not as easy
Identify the diodes, capacitors, or resistors. This integrated circuit
Is the development of transistors that have that feature
Many, not only as a power regulator, mosfet also can
As a power splitter, switching even some combination
The mosfet can be a dc / dc interface capable of being
Step down main power microcontroler.
To get to know the mosfet further, I made the material
Specifically the following illustrated images for easy to understand ways
It works, the method of measurement is so easy
Identify the damage to the component.
Look at the link below:
By the time we've found the problem on the circuit
Board or component, another problem that is often faced is
Find part component instead, smd limitations
Components. Unlike the other electronics components
Sold in many stores electronic component supply store, smd
Components sometimes become a very rare thing and
Difficult to look for. In response to this condition, alternative replacement
Component is to look for substitution components (components
Replacement). How to find the substitution component
Without causing any new problems.
Look at the link below:
It is important to identify PU by looking at the code on
PU components that we believe to be dc / dc power supply on
Datasheet.
By looking at the datasheet we can determine the function of the foot legs
PU to make measurements. To know PU in
Good or bad state, enough we know and measure
Voltage on leg Vol_in and Vol_out. If vol_in (power coming)
Is on the pu leg while vol_out (Power out) no can
We make sure PU is in damaged condition.
If Vol_in is not there it is definitely Vol_ouynya no
Also. We should look for source power supply PU comes from
Which component to test to
The component is good or bad in order to provide
Supply back to PU dc / dc power supply.
Before analyzing the problem of Motherboard Dead total thing
The first thing we do is make sure the condition
The motherboard is in short condition or not, that is with
Using an adapter that has an indicator light on
Adapter (do not forget to remove the battery c mos before starting
Analysis). Symptoms of short motherboard is on the adapter
Mounted on mobo, adapter blinks or off or dims.
Another way to determine the motherboard in a short condition that is
Measure the voltage V_in on the positive jack on the mobo (black probe
On the chassis / gnd ... red probe on Plus jack) if multimeter
Zero, or down ride either on avo digital or on avo
Analog (up needle tunnel).
Note: Make sure the adapter is in good use.
If the analysis ensures the condition of the mobo in a short condition, p
What we need to know is the power sequence or power sequence
Components on the mobo is by looking at the mobo scheme
If schematic has not been obtained another way to see power
Sequence is to see the general layout of the power structure
Laptop motherboard:
Seen clearly the arrangement of the power jack to the diode / transistor divider
Pass the ic battery and forwarded to dc / dc power supply PU.
If we have a scheme we can directly search
Short components based on the order / arrangement of that component
Bearada on lane / conductor power supply.
If it does not have a schema, we first record the component
Based on its classification by looking at general layout power
. Identify the power components that are in the path
Power general layout on the mobo in question.
Starting from Jack power pay attention around jack + have
Relation to what components by looking at trace paths on
Circuit. Usually to component diode, mosfet divider, fuse or
Resistors.
Do the same method on the scheme search above
, Albeit a bit groping with no schematics but components
Power generally in accordance with the above components with the code
Components added with the letter P indicate
Component is part of power supply component.example PQ
= Power transistor, PC = Power Capasitor, PR = Power Resistor or
PD = Power Diodes.
See component letter code, location code and inner terms
Motherboard in this link:
Perform PU identification by looking at the physical form of PU on mobo
Concerned. Record the serial icnya by looking at the datasheet
On link all datasheet.
Or see the general series PU battery ic and PU dc / dc power supply on
Link below:
To simplify the Search we must know the essence of
Short (short circuit) problems must be related to the problem
Power, short due to the negative and positive poles connected
On the circuit conductor or component in the circuit
Accelerate the identification of short components, we are just looking
On power module components only.
Identify the power components that are often found to be the cause
Short on the link below:
Note: It is necessary to identify the physical components of the suspect
Broken, cracked, burned, corrosion, corrosion etc to speed up
Search the cause component short.
The short cause is not only caused by components, but also
Can be caused intermittently on the circuit board.
The word "intermittent" in electronic repair means
Is: sometimes the equipment will work and sometimes
no. Intermittent problems can occur in any conductor and
In every circuit. If you want to see errors (for example,
Sometimes display sometimes not) Laptop works well
All day long without any problems and can last as long
All day and did not have a chance to see the error.
However, sometimes the Laptop does not work at all.
Problems can be caused by dry joints, broken tracks,
Loose / cracked / bad connection in the area of conductor or lane.Bad
Components / crashes and etc. These are the problems that have been
Causing many electronic Repairers to become frustrated and
If it does not have a better way to solve
Problem, may lose valuable time.
How to search and troubleshoot intermittent issues on links
below this:
II. SEARCH FOR DAMAGED COMPONENTS / DISCUSSED CAUSE OF DEATH
TOTAL.
Before doing a search the first thing is
Ensure the bios files and ic are in good state. Connect bios
Has relay power management, permasalahn bios file or icnya
Damaged can be the cause of the total dead laptop (temporarily
The contribution of voltage flows throughout the conductors and components
Mobo)
For more details see the link below:
And bios links below:
Bios power layout and bios chip identification that dead link below
This:
As with the mobo short search, the search component is off
Also need a power supply component and schematic path scheme
Knows General Layout power for mobo that do not yet have
scheme.
The difference on the mobo is dead. We can do a search
Easier because the adapter can be installed continuously for
Search (except at disposal and installation
Component) so we know that on that component
Passed voltage declares the previous component
works fine.
Different from looking for short components ie by removing
Components that are suspected of causing short or on the cause path
Short, the search for dead components is done by measurement.
The way of measurement can be seen in this link:
The way the above measurements are tested on components without
Power or not installed on the motherboard.
Here's how to easily measure the good components at the time of the mobo
Powered (attached adapter):
1. Diode (direct current) black probe on chassis, red probe on -
Diode (power in ada) red probe on diode + (power out there)
The diode is in good condition.
2.Resistor (Direct current) is equal to diode measurement (only
Apply to Power Resistors only)
3.Mosfet .probe black on chassis .probe red on feet 1,2,3
Vol_in there are legs 5,6,7,8 vol_out there (P-chanel) mosfet inside
Good state (for measurement of power divider voltage 4 feet
Gate while we ignore) the reverse measurement for
Mosfet n-channel)
Identifying a damaged mosfet is not as easy
Identify the diodes, capacitors, or resistors. This integrated circuit
Is the development of transistors that have that feature
Many, not only as a power regulator, mosfet also can
As a power splitter, switching even some combination
The mosfet can be a dc / dc interface capable of being
Step down main power microcontroler.
To get to know the mosfet further, I made the material
Specifically the following illustrated images for easy to understand ways
It works, the method of measurement is so easy
Identify the damage to the component.
Look at the link below:
By the time we've found the problem on the circuit
Board or component, another problem that is often faced is
Find part component instead, smd limitations
Components. Unlike the other electronics components
Sold in many stores electronic component supply store, smd
Components sometimes become a very rare thing and
Difficult to look for. In response to this condition, alternative replacement
Component is to look for substitution components (components
Replacement). How to find the substitution component
Without causing any new problems.
Look at the link below:
It is important to identify PU by looking at the code on
PU components that we believe to be dc / dc power supply on
Datasheet.
By looking at the datasheet we can determine the function of the foot legs
PU to make measurements. To know PU in
Good or bad state, enough we know and measure
Voltage on leg Vol_in and Vol_out. If vol_in (power coming)
Is on the pu leg while vol_out (Power out) no can
We make sure PU is in damaged condition.
If Vol_in is not there it is definitely Vol_ouynya no
Also. We should look for source power supply PU comes from
Which component to test to
The component is good or bad in order to provide
Supply back to PU dc / dc power supply.
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