View previous topic :: View next topic |
Author |
Message |
Dishfarmer Guest
|
Posted: Thu May 05, 2011 9:54 pm Post subject: Sampo KM-777 Monitor Main Board PWB-3177-4 |
|
|
Hi Everyone,
Looking for any ideas with a dead CRT Monitor as above, nil pwr to tri colour LED. Only life is a click from the smps transformer once a second.
I have changed the PWM IC and checked the FET on the primary, checked the HOT and all the main caps on the +70V rail.
Giving a VGA input signal nil effect either.
Something is loading the main rails down or maybe the smps trasformer is shorted or the horz o/p transistor is still defective?
Any ideas appreciated.
Aar on. |
|
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 :
service Philips • 2sc5200 Inchange Semiconductor • WT [non-polar radial] NP Series WT [WesT • AS560 565 660C 665C 765C 4806-725-27019 • A3162 Pioneer • Geloso G208 GELOSO • irlr7807z International Rectifier • UB [snap-in] ACL-CD293H Series UB [Unite • dvd640 266 Philips • hfe rq-v460 service en panasonic •
|