Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
PVM-14m4u pincushioning
My Sony PVM-14M4U has recently started tearing horizontally most noticeably
along the edges of the raster. When I put it in the underscan mode, the image displays with severe pincushioning. I'm also seeing the retrace lines at the top of the raster in all 3 colors. The monitor is 10 years old and has been rock solid until now. Is it just in need of adjustment? Could this have resulted from the placement of near field audio monitors too close to the Sony? They speakers have been there a year and I have never seen any magnetic type of distortion on the pictures, so I have assumed the Roland DM-10s are shielded well enough to not do any harm. Thanks for any insight you may have. -dan |
#2
Posted to sci.electronics.repair
|
|||
|
|||
PVM-14m4u pincushioning
I have repaired a number of these units...great unit! You will need
one, or two small electrolytic capacitors in the vertical circuit, buy the IC, also, look for a square, or round capacitor, or diode, in the pincushion circuit. Don't "tweak" the EEPROM, until you do the "electronics" repair. It shouldn't need tweaking anyway! Dani. |
#3
Posted to sci.electronics.repair
|
|||
|
|||
PVM-14m4u pincushioning
Thanks for the detailed info. I'll pass it on to the repair shop.
Dani wrote: I have repaired a number of these units...great unit! You will need one, or two small electrolytic capacitors in the vertical circuit, buy the IC, also, look for a square, or round capacitor, or diode, in the pincushion circuit. Don't "tweak" the EEPROM, until you do the "electronics" repair. It shouldn't need tweaking anyway! Dani. -- Message posted via ElectronicsKB.com http://www.electronicskb.com/Uwe/For...epair/200710/1 |
#4
Posted to sci.electronics.repair
|
|||
|
|||
PVM-14m4u pincushioning
On Oct 2, 4:42 pm, "videdit via ElectronicsKB.com" u37871@uwe wrote:
Thanks for the detailed info. I'll pass it on to the repair shop. Dani wrote: I have repaired a number of these units...great unit! You will need one, or two small electrolytic capacitors in the vertical circuit, buy the IC, also, look for a square, or round capacitor, or diode, in the pincushion circuit. Don't "tweak" the EEPROM, until you do the "electronics" repair. It shouldn't need tweaking anyway! Dani. -- Message posted via ElectronicsKB.comhttp://www.electronicskb.com/Uwe/Forums.aspx/repair/200710/1 Ditto on the caps ..... Been there, done it....... |
#5
Posted to sci.electronics.repair
|
|||
|
|||
PVM-14m4u pincushioning
anyone have a source for a service manual for a pvm-14m4u Sony monitor?
carneyke wrote: Thanks for the detailed info. I'll pass it on to the repair shop. [quoted text clipped - 6 lines] -- Message posted via ElectronicsKB.comhttp://www.electronicskb.com/Uwe/Forums.aspx/repair/200710/1 Ditto on the caps ..... Been there, done it....... -- Message posted via http://www.electronicskb.com |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
RCA Proscan "Pincushioning" | Electronics Repair | |||
RCA CTC 168/169 Pincushioning Problem | Electronics Repair | |||
Sony PVM-14M4U | Electronics Repair |