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Hi, I have a Denon AVR-X3600H I'm trying to repair. I have no electronics repair experience but I have a multimeter, service manual and a will to fix it (https://device.report/m/d5de8c00e617...f63147aba9.pdf)
Everything seems to work except for no sound even through the pre outs. However I will get sound using Zone 2 pre outs.
Only digital symptom I can tell is it will soft lock when in the Speakers/Test Tone menu and be unable to adjust +/- db during the test tone.
I've followed the trouble shooting guide, audio check... -
Most analog meters are actually current driven - a current is needed to deflect the pointer full scale. They can be lots of different values. There are ones that can take several amperes to swing the pointer as they have internal shunts.
On the other hand there are many that are rated in microamps for the intent that they draw as little power as possible from the devices under test. Some are 1mA, 500µA, 200µA, 100µA, and the ubiquitous 50µA frequently used in analog VOMs. There are even 20, 25, 30 µA and even down to 10µA. Been collecting a bunch of different ratings and... -
Not that I am that surprised, but just noticed while cutting of some SATA cabling from dead crappy PSUs for making molex-to-dual-SATA adapters, they are not satisfied with using small wire gauge, they even fake it on top of that.
Had one very thin set which made me curious if that's even gonna be enough for two drives (I'll likely use it just for SSDs I guess) but it states 20AWG on the insulation. Than another one also 20AWG but by eye-meter at least one third thicker, if not twice the gauge, this is surely genuine 20AWG.
So if you see very thin cables next time,... -
This is a common issue for some hotrodders needing to replace their old tired fuel tank sending units with a replacement and matching it to a fuel gauge they wish to use in their cluster.
Item #1 Fuel gauge - mechanical type with sweeping needle. The resistance range of the gauge is 30-240 ohms. At E (empty) the gauge expects to see 30 ohms and at F (full) it expects to see 240 ohms.
Item #2 Sending unit in tank - mechanical type sweeping arm with a dimmer-style wire coil and wiper. The resistance range of the sending unit is 2-36 ohms. Some are more like 0-30 if... -
Hi
I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
I wonder how i can accomplish this so the meter would be precise at any temperature ?
Thnaks
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