Text: Recently, I have also out of the old problem of HDV, and is always used about 50% is automatically shut down, and needless to say, is definitely the fault of that switch, did not intend to reform, because the taking into account the warranty, replacement and so on, but do not change Buxing Le simply can not see video 3 hours not to! looked at all the change-line method, like my great strength and innovative again, and prepared to most of the need to improve where a one-time changed! Looked at all the change-line method, like my great strength and innovative again, and prepared to most of the areas for improvement in one-time changed! Of course, the principle is similar to ... ... He He ... ... Of course, the principle is similar to ... ... He He ... ...
I took almost 2 days to modify the HDV, of course, is spare time, do not take school hours! I took almost 2 days to modify the HDV, of course, is spare time, do not take school hours! This process is still a bit difficult to say, mainly including brightness, the protection plate automatic reset, standby static power consumption, switch 2 seconds delay turn-off, increasing the charge current, heat, internal layout of several areas, brightness adjustment is copied YZX, the entire process is its own one-person testing, welding, adjustment! The process is still a bit difficult to say, mainly including brightness, the protection plate automatic reset, standby static power consumption, 2 seconds delay in switching off, increasing the charge current, heat, internal layout of several areas, brightness adjustment is copied YZX of The whole process is its own one-person testing, welding, adjustment!
The following briefly about areas of improvement: The following briefly about areas of improvement:
One, two files will be changed to adjust the brightness with a switch to control, respectively, during the day and night use is in accordance with the change YZX law; One, two files will be changed to adjust the brightness with a switch to control, respectively, during the day and night use is in accordance with the changed law YZX;
2, switch improvements, without any of the MOS the like, directly protect the board from the start with, so we add a 1K resistor to protect the board as a fully automatic reset can be, and there are 2 seconds delayed shutdown feature (that is, the Switch off the post will not be immediately cut off the power, but about two seconds before slowly lowering to the cut off voltage of the power ... ... this little meaning); 2, switch improvements, without any of the MOS the like, directly protect the board from the start with, so we add a 1K resistor to protect the board as a fully automatic reset can be, and there are 2 seconds delayed shutdown feature (that is, the Switch off the post will not be immediately cut off the power, but about two seconds before slowly lowering to the cut off voltage of the power ... ... this little meaning);
3, charging to improve, the original is too slow, and can not stand, direct addition of a self-reform 500ma ultra-small TP4057 charger plates, precision 0.5%, and added a heat sink, by the way has also received a light into the IR receiver hole there, charging the red lights, becomes, after full green, full power for about 3 hours; 3, charging to improve, the original is too slow, and can not stand, direct addition of a self-reform 500ma ultra-small TP4057 charger plates , precision 0.5%, and added a heat sink, by the way has also received a light into the IR receiver hole there, charging the red lights, becomes, after full green, full power for about 3 hours;
4, replace the battery, bought for Tai Lan, and a direct exchange, for ATL's up, 2500MAH, endurance test and then on the end! 4, replace the battery, bought for Tai Lan, and a direct exchange, for ATL's up, 2500MAH, endurance test and then on the end!
Okay, so that the remaining plans to speak out for Okay, so that the remaining plans to speak out for
Brightness adjustment for the two chip resistors Brightness adjustment for the two chip resistors
Used for brightness adjustment switch Switches used for brightness adjustment
Apart after the brightness adjustment resistor Apart after the brightness adjustment resistor
After resistance welding on the brightness adjustment After resistance welding on the brightness adjustment
I took almost 2 days to modify the HDV, of course, is spare time, do not take school hours! I took almost 2 days to modify the HDV, of course, is spare time, do not take school hours! This process is still a bit difficult to say, mainly including brightness, the protection plate automatic reset, standby static power consumption, switch 2 seconds delay turn-off, increasing the charge current, heat, internal layout of several areas, brightness adjustment is copied YZX, the entire process is its own one-person testing, welding, adjustment! The process is still a bit difficult to say, mainly including brightness, the protection plate automatic reset, standby static power consumption, 2 seconds delay in switching off, increasing the charge current, heat, internal layout of several areas, brightness adjustment is copied YZX of The whole process is its own one-person testing, welding, adjustment!
The following briefly about areas of improvement: The following briefly about areas of improvement:
One, two files will be changed to adjust the brightness with a switch to control, respectively, during the day and night use is in accordance with the change YZX law; One, two files will be changed to adjust the brightness with a switch to control, respectively, during the day and night use is in accordance with the changed law YZX;
2, switch improvements, without any of the MOS the like, directly protect the board from the start with, so we add a 1K resistor to protect the board as a fully automatic reset can be, and there are 2 seconds delayed shutdown feature (that is, the Switch off the post will not be immediately cut off the power, but about two seconds before slowly lowering to the cut off voltage of the power ... ... this little meaning); 2, switch improvements, without any of the MOS the like, directly protect the board from the start with, so we add a 1K resistor to protect the board as a fully automatic reset can be, and there are 2 seconds delayed shutdown feature (that is, the Switch off the post will not be immediately cut off the power, but about two seconds before slowly lowering to the cut off voltage of the power ... ... this little meaning);
3, charging to improve, the original is too slow, and can not stand, direct addition of a self-reform 500ma ultra-small TP4057 charger plates, precision 0.5%, and added a heat sink, by the way has also received a light into the IR receiver hole there, charging the red lights, becomes, after full green, full power for about 3 hours; 3, charging to improve, the original is too slow, and can not stand, direct addition of a self-reform 500ma ultra-small TP4057 charger plates , precision 0.5%, and added a heat sink, by the way has also received a light into the IR receiver hole there, charging the red lights, becomes, after full green, full power for about 3 hours;
4, replace the battery, bought for Tai Lan, and a direct exchange, for ATL's up, 2500MAH, endurance test and then on the end! 4, replace the battery, bought for Tai Lan, and a direct exchange, for ATL's up, 2500MAH, endurance test and then on the end!
Okay, so that the remaining plans to speak out for Okay, so that the remaining plans to speak out for
Aucun commentaire:
Enregistrer un commentaire