| Subject | Text |
| 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 |
| Any time fuses blow at contact with a.c. power.... | any time fuses blow at contact with a.c. check to see if your rectifier bridge is healthy. After tha |
| since you have a VOM/tester, set it to X1, be sure to discharge the largest capacitor u can find in |
| 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 |
| SONY SHUTDOWN PROBLEM | Dear sirs, your problem with the sony power supply is not that bad, The tech with the exp, that told |
| cheaper solution PROTECT FAN message | from another forum
The message PROTECT FAN may indicate that there has been fan failure, but it |
| Hi Minnie ! Do you think the tube is shot ? The picture has a kind of pink tint if i plug in a sourc |
| SMPS SECTION:sony kv32v26,32v36,34v36,35v36,35v76,37v36m | REPAIR THE BULLSHIT SONY TVsSONY TV KV32V26, 32V36, 34V36, 35V36,35V36C, 35V76,37V36M
SMPS s |
| 〓lima electronics(Shenzhen)ltd〓 | 〓lima electronics(Shenzhen)ltd〓
★we are one of the leading agent in China who s |
| Goodmans GTV42P3 42" Plasma TV - Power Board Repair | Good Day All.
I have a 3 year old Goodmans GTV42P3 42" Plasma TV, that has stoped working. |
| TV will not power up | Take a look at your low voltage power supply. If it has a Bridge Rectifier unit or diodes, check if |
| Remember your AC 12/13 volt winding is center-tapped. Usually so unit can get equal but opposite pol |
| Well, you can test basic functioning of the multiplier with a low voltage AC drive to the multiplier |
| Yes, but it may not give you the results you want. There are several subtleties involved.
If you |
| yamaha r3 dead set | hello to all,
my yamaha r3 has no lights and no audio, but before this happened im hearing a high p |
| Update - requerst for help :-)
K, after poking around and checking all the fuses, ps etc, I attac |
