Service manual

85
ViewSonic Corporation Confidential - Do Not Copy PJ513D-1
3. Power Trouble Shooting Guide
Power BD Check.
Proceed to “check
DC-DC OUTPUT＂
Fuse Broken ?
Proceed to "Primary
Circuit Check".
Yes
No
No DC-DC
Output.
TOPSwitch
Broken ?
B+=385VDC ?
Replace new
TOPSwitch
Yes
Yes
No
No
Proceed to " Primary
Circuit Check"
Lacks of some
componets around
TOPSitch ?
Check Trace.
solder them.
Yes
No