hi, i am looking for the wiring diagram of this amplifier
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hello everyone, I'm looking for the wiring diagram of this led monitor.
the model is DHI-LM19-L200, but I think that any other diagram of a DAHUA monitor could be equivalent.
I really hope that among you someone can help me to repair this monitor, the screen is black, it doesn't seem like a backlight problem.
I see the presence of 12 volts, 5 volts, but without a diagram the repair is very difficult.
thanks to those who will answer12-10-2024, 04:37 PM -
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Hello guys
Because the unit is old (but only occasionally used) the loudness button causes some noise due to bad contact,
sprays did not work, so i decided to solder the pins that it connects on the pcb at the on (loudness on) position
i did that and it worked fine, i know from the bottom of my heart that the switch connects 2 pins and also d/c other 2 pins
on every position it have (6 pin switch), so i was curious what would happen if i clicked the switch off while the pins are soldered at on (so basiclly on and off at the same time), when i did so the sound is gone, nothing... -
please i need shematics of electrical wiring diagram for electrofusion welding machine elofit nupigeco , thank u .06-26-2022, 06:29 AM -
Hi folks,
New audio equipment repair and I could use some help.
Picked up VSX-523-K Surround sound amplifer.
Upon power up for the first time (been sitting for a while) loud popping noise and smoke..
Disconnected, opened up and found many popped caps on the amplifier board.
Replaced all, replaced A992 BJT, and pre-amp transistor and power transistor. I found 0.47 Ohm resistors that are blown or have gone High impedance and I'd like to replace.
On the service manual, it shows these as 0R47(2) (assuming this is a 0.47 Ohm, 2W?)...