Samsung SyncMaster 1000s Service Manual page 46

7 Troubleshooting
7-2-7 Poor Focus
Adjust Focus VRs.
Is focus improved?
No
Check focus leads from FBT
to CRT Socket.
Check the CRT Socket.
Is the dynamic focus circuit
correct?
Yes
Replace CRT and verify focus.
7-2-8 Purity Failure
Degaussing
Is the purity correct?
No
Is the degaussing circuit correct?
Yes
Replace CRT and verify purity.
7-20
Yes
Aging monitor and check for focus
change.
No
Refer to 7-1-15 Dynamic Focus
Failure.
Yes
Done
No
Refer to 7-1-20 Degaussing Failure.
SyncMaster 1000s (CGP1607L)