This relay clicked when I would power up the tv. The screen would come on for a few seconds and then off with constant flashing green standby after. The relay is LKP1aF-12v. It is on hitachi HA00991. SER. no. 00095. There are 4 pins and 3 are common. Is it supposed to be that way?
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Hello everyone,
I'm turning to the Badcaps community to help me troubleshoot the radio Rx card from my (old) garage door opener. While I could just ditch that card and replace the whole system, I first would like to understand "why" it suddenly stopped working, because that's just how I am wired...!
Some basics: the receiver works on a 30.875 Mhz frequency. Yes, I'm aware this is not in use anymore in a looot of places. It does not use any rolling code, it's just a regular dip-switch code that you have to set up on both the receiver and transmitter. The receiver... -
Howdy,
My stepdad said all it does is click. And he was right. No backlight, no standby light on the front. Just a steady click when plugged in. It's amateur hour on my end but I'm trying my best to learn via forums and Youtube. Below I'll list the things I've done thus far.
1. I've removed the power supply board and cannot visually see any defects, expanded capacitors or cracked solder joints.
2. Fuses test good.
3. Bridge Rectifier(I believe thats what it's called) reads out 169 volts.
4. 5 volt from PJ91 tests good.
5. The relay only...09-22-2020, 08:08 PM -
Hi everyone,
I require some help with my TV. The TV standby light blicks on and off with a clicking sound (relay?) from the back. After I opened up the TV, I set about troubleshooting by unplugging the boards to try and isolate the problem. My troubleshooting suggests that the logic board is causing the issue, but it could entirely be the YSUS board which is only activated once the logic board is connected.
I have recorded a video which I thought would be an easier way to explain the problem and show the boards at the same time.
I would like to try and identify... -
I gotten a Carver CM-1090 amplifier from a friend who has kept it in storage for decades. Opened it up, thick layer of dust cumulated everywhere. Vacuumed it semi-cleaned, and blown off as much as possible the remaining dust. This is a 220V version.
On initial powered up with nothing connected - it works with all the lights and button indicator lit up as pressed, etc. I then powered off, connected a CD player into the CD RCA input and powered it on. It seemed to work for a short while and when I turned the volume up and down to see the the VUs works, the power started to clicked off... -
Hi, I'm seeing one 9V relay having temperature 40C on its 9V (primary) side. Does that seem right? I switched 2 relays on that board and the temperature was the same (on the same position), so I'm sure it's not a faulty relay. I measured voltage on that relay and it was 9.5V DC, so that looks good. I don't see any other relay on that board having that kind of temperature and they have 9V on them too.
I thought maybe the transistor that is switching this relay keeps switching on/off, so I also checked for AC and there was almost none: 0.3V using mV range. No steady frequency was shown, but...