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changhong tv service mode
i've succesfull to open service mode but i did a mistake that make all parameter reset to '0',and i need the default parameter list,where i can find default setting for that service mode ? please tell me.iam waiting for that.thanks before.
changhong service mode
i need list of service mode menu for my changhong tv model pf21300,couse i do mistake that make reset all service mode menu.please help me.thanks before.
i have online resources who sold high laser diode from 5 watt to 100 watt output.but this is illegal one,please send me ur email,we can contact via email.if u interesting email me at tri.pleiades@gmail.com
circuit to double click
try electronic switch use JK flip flop togle circuit to drive darlington transistor aray ULN2004,from that u can use as a transistor switch which can drive scr,triac or relay.
how to eliminate noise.com in the circuite
can u tell me please the value of the capasitor for the ic input,if i put capasitor it seem look like a lowpass filter,is that true ? but what the cut off frequencies i must build for ic input ? please tell me the formula to count the low pass...
user triac
thanks for electronic relay circuit,i have built that and work,but when 220vac motor on,digital switch reset by him self,what can i do to eliminate TTL LOGIC INPUT LS 7473 from noise.
noisy switch input
i have try to separate the power supply of relay,but that not solve the problem,each 220vac relay energized the ls7473 togle switch reset by him self,is there anything wrong that i miss?
Added after 13 minutes:
for ttl ic i use 7805 and for relay 12vdc i use 7812 and for...
driving triac using diac
thanks for attention,i mean that triac not to control the speed of ac motor,but just for on/off the motor,what can i do to change that circuit,that circuit for vaccum motor to use for ink printer reffill
machine so i dont need to control the speed of motor,please help...
triac 220v
:D please tell me and show me how i can use TRIAC and DIAC for on/off switching 220v 1 phase ac motor,i have built electronic switch using LS7473 toggle switch circuit for driving TRIAC and DIAC,iam waiting for anyone to help me.thanks before
ttl noise
i build electronic switch with LS7473 jk flip flop togle circuit for switching solenoid and ac motor,but when ac motor on,all digital switch off by him self each time ac relay for motor energized,please help me to solve the problem.thanks before
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