Forum: General Capacitor Questions & Issues
Yesterday, 09:25 PM
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Replies: 4
Views: 53
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Forum: General Capacitor Questions & Issues
08-05-2022, 05:19 PM
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Replies: 36
Views: 857
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Forum: Troubleshooting Audio Equipment
08-04-2022, 07:36 PM
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Replies: 6
Views: 127
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Forum: Troubleshooting Computer Displays
08-03-2022, 05:45 PM
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Replies: 96
Views: 60,408
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Forum: Troubleshooting Computer Displays
08-03-2022, 05:31 PM
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Replies: 64
Views: 24,702
Re: Dell P1110 21" CRT repair thread
Does the fuse blow as soon as it is plugged in or do you need to press the power button and then it blows?
If it blows as soon as it is plugged in, suspect VDR601 is shorted. Next could be the...
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Forum: Troubleshooting Audio Equipment
08-03-2022, 05:07 PM
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Replies: 6
Views: 127
Re: Klipsch RSW-12 subwoofer won't power on
There are schematics for the RW-10 and RW-12, I don't know how close they might be. Maybe post some pictures of the boards.
There is also a RSW-15 available that might be close.
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Forum: Troubleshooting Audio Equipment
08-03-2022, 12:58 PM
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Replies: 6
Views: 127
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Forum: Troubleshooting Computer Displays
07-31-2022, 10:05 PM
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Replies: 3
Views: 162
Re: LG Flatron W2361V PSU Troubleshooting
From what I can tell, If you have the +5v you should also have the +22v, both are supplied by the same transformer, so check the connections on the transformer and D201,D205.
I would start by...
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Forum: Troubleshooting TVs and Video Sources
07-31-2022, 10:39 AM
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Replies: 6
Views: 229
Re: Samsung BN44-00516A no 5v Stby
When NT801s goes open it is because the relay contacts are bad, If you don't either clean the relay contacts or replace the relay the ntc will go open again.
If the ntc is warm when the tv is ON...
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Forum: Troubleshooting TVs and Video Sources
07-30-2022, 08:19 PM
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Replies: 6
Views: 229
Re: Samsung BN44-00516A no 5v Stby
TX801s is the standby transformer, F802s supplies voltage to the transformer primary winding and then to the standby ic. This ic is covered in silicon on the top of the board
Do you have any voltage...
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
07-29-2022, 09:54 AM
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Replies: 2
Views: 101
Re: Ch341 won't read only when the chip soldered
When the spi chip is on the board and you use a test clip you are also trying to power the whole board from the programmer, like the microprocessor ic etc. Also if the micro does power up, it is also...
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Forum: Troubleshooting TVs and Video Sources
07-28-2022, 07:07 PM
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Replies: 16
Views: 468
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Forum: Troubleshooting TVs and Video Sources
07-27-2022, 08:50 PM
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Replies: 5
Views: 686
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Forum: General Electronics Technical Discussion
07-26-2022, 02:16 PM
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Replies: 9
Views: 182
Re: JCD 8898 zener diode ratings
The blue ring only states it is a zener diode, but does not give a value.
I could not find a schematic, so you may need to trace out the circuit to try and figure out what the zener does in the...
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Forum: Troubleshooting TVs and Video Sources
07-23-2022, 09:12 PM
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Replies: 3
Views: 206
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Forum: Troubleshooting Audio Equipment
07-23-2022, 05:39 PM
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Replies: 30
Views: 10,170
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Forum: Troubleshooting Audio Equipment
07-21-2022, 09:21 PM
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Replies: 3
Views: 175
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Forum: General Electronics Technical Discussion
07-20-2022, 04:13 PM
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Replies: 25
Views: 348
Re: Queen coffee CQ MN-2 Heating element
I was too slow posting, like rewire said...
It may be sticking do to calcium buildup, or something is warped due to heat. Also check the force it takes to press the micro switch just in case it's...
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Forum: General Electronics Technical Discussion
07-20-2022, 10:42 AM
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Replies: 25
Views: 348
Re: Queen coffee CQ MN-2 Heating element
Even if the boiler element was open, the Brew light (S3) should still light, If both thermal cutouts B5 and B4, mounted on the boiler are ok, and not open, I suspect B3 micro switch is either bad or...
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Forum: General Electronics Technical Discussion
07-20-2022, 08:12 AM
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Replies: 25
Views: 348
Re: Queen coffee CQ MN-2 Heating element
There are two separate warming plates, do either of them work? There are also three lights, do any of them work? If none of the lights work and neither of the warming plates get warm, I suspect the...
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Forum: General Electronics Technical Discussion
07-20-2022, 07:41 AM
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Replies: 2
Views: 117
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Forum: General Electronics Technical Discussion
07-20-2022, 06:58 AM
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Replies: 25
Views: 348
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Forum: Troubleshooting TVs and Video Sources
07-19-2022, 07:46 PM
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Replies: 4
Views: 264
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