View previous topic :: View next topic |
Author |
Message |
wb6nvh
Joined: 19 Dec 2006 Posts: 3 Location: Monterey California
|
Posted: Thu Dec 21, 2006 8:55 am Post subject: Sony KV8AD11 Won't Turn On |
|
|
Here's a problem complete with its solution.
Sony small tabletop 8" color set, KV8AD11, on the bench. Green light lit on the on/off button when depressed but otherwise set is DOA, no power up. Owner says worked fine the night before, next morning nothing...
No service data available, as usual.
This was another case of dried up electrolytics where the ESR meter paid for itself. There's a separate power switching / power supply board on the right side of the set, when viewed from the rear, with a cage around it. Noticed the board was somewhat heat-discolored. Found that the 100uf 16V electrolytic on that board was dried up and open circuit, and the 33uf 35V electrolytic on its way out at 10 Ohms ESR. These are identified as C609 and C603. Replaced both and normal operation restored.
Note that this small board slides up vertically for removal. It's suggested that only 105 degree C caps be used on this board as things run warm and are cramped. |
|
Back to top |
|
|
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
1740A HP • euro5 panasonic • G16-202 PCB layout GELOSO • 25112 AMD • mc019a LG • VSX-D607S Pioneer • Panel AUO T315XW06 V3 CELL 0 [DS] . Vari • 2sc1610 Inchange Semiconductor • MODEL 870 Keithley • 150GTL Schematic COBRA •
|