A computer host removed the motherboard due to dust removal. When reinstalling, it was found that the power reset switch on the chassis panel, the hard disk power indicator, and the plugs of the speaker and the two USB terminals were not marked. The plug cannot be restored and cannot be used. Therefore, using the functional characteristics of each device on the panel, try to insert one by one in order. Considering the socket pin group connected to the panel plug on the motherboard, it generally only has a low voltage and low current (except the USB pin group), so it is a bold test. First find the position of the plug of the power switch. The method is to turn on the power, then press and hold the power switch on the panel, and insert the plugs of the switches one by one in the seat pins. When the fan of the switch power supply is started after being inserted into a certain two support pins, it means that the power supply switch pin may be found correctly. Note: If one pin of the plug is inserted into another grounding pin, so that the power supply can also be started, but the remaining one or more plugs will not find the correct position. If this happens, just insert a pin hole of the switch plug to the adjacent pin. After turning on the computer, find the needle of the power indicator. Because the light-emitting diode is a polar component (the same as the hard disk indicator), if the plug is reversed, it will not light, so try to insert it positively and negatively. If during the hard disk reading time, if two pins are flashing, the set of pins may be the seat pins of the hard disk indicator, then the hard disk indicator can be inserted. If the brightness of the indicator is relatively bright or dark, this situation is regarded as a wrong sign, and you should continue to search. Next, find the needle position of the seat of the reset switch, press and hold the reset switch, and insert the plug of the switch to the remaining needle position, if the system resets. This group is the position of the reset switch. The remaining speaker plugs can easily find the location where they should be plugged in, using the characteristics of the computer alarm sound. In principle, the speakers are also divided into positive and negative poles, but the small speakers of the chassis can be divided. Because the plug of the USB terminal is two four-pin plugs. The shielded wire insertion position of the two sets of connectors is the negative electrode. The USB socket pins on the motherboard are a row of 8 pins. Assuming that the head or tail pins are the first pins, using a multimeter, the 1 and 8 pins are + 5V (voltage to ground), and the 4 and 5 pins are negative (to ground) resistance). This shows that the 1st hole of the plug is + 5V, the 2nd and 3rd holes are the data bit, and the 4th hole is the negative bit (shield layer), the same is true for the other group, so the two plugs are inserted into position. At this time, it is best to use MP4 to test the USB terminal, because the USB power supply loop of MP4 has a diode. It will not be damaged if the power supply is reversed. The above method is a last resort, perhaps a fluke without problems. If you find that the definition of the seat pin is unclear when you disassemble the motherboard, you should make a record and then unplug the lead of the panel to avoid unnecessary trouble.
A 24V
Dc Motor Consistency is good, reliable performance, low malfunction, torque, motor no-load and load running more smoothly and the lowest in 50 decibels
Functions: 24V dc
motor rotor part of the armature iron core, armature, commutator and
other devices, 24V Dc Motor is suitable for most of the
electronic products, such as Electric curtains, car, sweeping robot, no hakaze fan, etc
Areas of application:
Method of use: the best stable in
horizontal plane, installed on the 24V dc motor output shaft
parts, cannot use a hammer to knock, knock prone to press into the 24V
dc motor drive, may cause damage to internal components, and cannot be
used in the case of blocked.
Operating
temperature range:
24V dc motor should be used at
a temperature of -10~60℃.
The figures stated
in the catalog specifications are based on use at ordinary room
temperature catalog specifications re based on use at ordinary room
temperature (approximately20~25℃.
If a 24V dc
motor is used outside the prescribed temperature range,the grease on
the gearhead area will become unable to function normally and the motor will
become unable to start.Depending on the temperature conditions ,it may be
possible to deal with them by changing the grease of the motor's parts.Please
feel free to consult with us about this.
Storage
temperature range:
24V dc motor should be stored
ta a temperature of -15~65℃.
In case of storage
outside this range,the grease on the gearhead area will become unable to
function normally and the motor will become unable to start.
Service life:
The longevity of
geared motors is greatly affected by the load conditions , the mode of
operation,the environment of use ,etc.Therefore,it is necessary to check the
conditions under which the product will actually be used .The following
conditions will have a negative effect on longevity.Please consult with us
should any of them apply.
â—Use with a load
that exceeds the rated torque
â—Frequent starting
â—Momentary reversals
of turning direction
â—Impact loads
â—Long-term
continuous operation
â—Forced turning
using the output shaft
â—Use in which the
permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive
,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage
that is nonstandard as regards the rated voltage
â—Use outside the
prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with
us about these or any other conditions of use that may apply,so that we can be
sure that you select the most appropriate model.
when it come to
volume production,we're a major player as well .each month,we rurn out
600000 units,all of which are compliant with the rohs directive.Have any
questions or special needed, please contact us, we have the engineer group and
best sales department to service to you Looking forward to your inquiry. Welcome
to our factory.
24V Dc Motor 24V Dc Motor,24V Dc Micro Motor,24V Dc Electrical Motor,24V Micro Dc Motor Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com
