5 Troubleshooting
5-16
CF21M*
Are they all right?
Are H_Out and V_Out
of IC250 Pin 23 and 26 right?
Check and replace IC250.
Yes
Yes
No
Check and replace IC201.
No
Are H_FLYBACK of IC102 Pin 23
(19”: IC101 Pin 27) right?
Check CN102 Assy and Q103.
Check clamp pulse of IC102
Pin 22 (19”: IC101 Pin 19)
replace IC201 and Q107.
Yes
Done.
No
Compare input sync. of IC201
Pin 18 and 19 with output sync.
of IC201 20 and 21.
5-2-5 Unsynchronized Image
Summary of Contents for CF21M
Page 7: ...CF21M 6 1 6 Exploded View and Parts List ...
Page 17: ...10 Schematic Diagrams 10 6 CF21M 1 368 V IC601 1 ...
Page 19: ...10 Schematic Diagrams 10 8 CF21M 19 IC103 5 24 15 CRT Socket Red Green Blue 20 R G B Video ...
Page 21: ...10 Schematic Diagrams 10 10 CF21M Memo ...
Page 22: ...Memo 9 Wiring Diagram 9 2 CF21M ...
Page 23: ...Memo 8 Block Diagrams 8 2 CF21M ...
Page 48: ...Memo 7 Electrical Parts List 7 26 CF21M ...
Page 49: ...7 Electrical Parts List CF21M 7 27 Loc No Code No Description Specification Remarks ...