| Subject | Text |
| Denon AVR-1100 RD Problem | Hi All,
Have an 1100RD which will switch into standby but will not switch on.
Q: Do I need the |
| ac-dc | Hi,
first i like to mention that im NOT any good at complex electronics,
and i would like the ones |
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| Yippee Iv'e found the fault! | After I don't know how many hours of cursing and head scratching I have fixed my oscilloscope. It wa |
| LG tv | Hi,Munawar,
i wander know if you line AC voltage is 127vca or another rating
because i see a bridg |
| transformer smokes | I am repairing a power supply for a scientific instrument. When I recieved it, it would not turn o |
| Most likely, the problem is due to a bad filter capacitor in the power supply or an open-circuited d |
| LG MZ-42PZ13 info needed | Hi need some info for the power supply (main) board, either a schematic diagram or the type numbers |
| I think the most likely problem is the backup battery on the CPU board, it may leak and cause corros |
| Can you be more specific about your application? Exactly what are you trying to drive?
Whilst mo |
| Main fuse blown | Take a DVM and check for a short across "bridge diode" (or main filter electrolytic) (Q601 |
| Re: TV will not power up | [quote:17d6de0fe3="gilloz"]Take a look at your low voltage power supply. If it has a Bridge Rectifi |
| I think the standby power supply is a simple type of SMPS with a few watts of output?
If you have |
| Wasjust looking over vtech's shoulder andfound a generic schematic to a power supply that should be |
| if main fuse blows,check diode bridge on small board at front where fuse is.otherwise front end powe |
| Possibility:
-Over voltage at C619 caused by:
* C at pin1 and pin2 STR81145A defective.
* STR81 |
| Marconi TF 2700 | Does anybody have a usermanual for the Marconi R-L-C Bridge
[b:5e0cb55401]TF-2700[/b:5e0cb55401]. O |
| since you have a VOM/tester, set it to X1, be sure to discharge the largest capacitor u can find in |
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| Just because a transformer has a mess of pins, does not mean it has to use all of them. :wink:
AC |
| Re: Display | "7) I then soldered back those 2 resistors and bridge wire."
Sounds like you're on the |
| Hi Raj,
Thanks for your reply. I powered up the amp and checked the voltage across the relay and |
| It's not a ctc chassis. The set was sold "as is " for junk by Wal-mart. It's less than a y |
| hi, i have spent some more time on this and have found that i dont have 240v a.c on the bridge recti |
| If you need current feedback to get a correct waveform through an inductive load, please take a look |
| Check for power supply | yes! replace all the bad components but first isolate the problem before you power on. Also check yo |
| Follow up: I did manage to track down the fault after replacing the cascade and HV transformer at gr |
| Have you checked the bridge rectifier? |
| Okay, in case of 240 Vac supply, you should have at least 300 Vdc after the bridge rectifier. I thin |
| Samsung LE19B450C4W - SMPS Problem | Hi all.
This is my first post here. I hope you can help me.
I have this Samsung LCD. The problem i |
| Time to resurrect his thread again!
This set is a 29PT8413/05.
Original symptoms green LED fla |
| Does it have E/W (pincushion) distortion too or is the width too low with straight edges of the scan |