5 Troubleshooting
5-6
TT17J*
5-1-11 V Deflection Failure
13 V, –10 V line is on?
IC401 Pin 12 output exists?
Check and replace IC401.
Yes
Yes
No
Refer to 5-1-1 No Power Supply
No
IC301 Pin 6 output exists?
Check and replace some parts
around IC301.
Yes
No
Check DY connector connection.
WAVEFORMS
8
9
8
5 V (IC401, #12)
CH1 P-P = 5 V
CH1 RMS = 1.425 V
9
10.0 V (IC301, #6)
CH1 P-P = 10.0 V
CH1 RMS = 5.06 V
5-1-12 V Size or Pos. Variation Failure
IC401 Pin 12 output varies with
different DAC values?
Yes
Check and replace IC201 and IC401.
Check and replace IC301.
No
Summary of Contents for TT17J Series
Page 7: ...2 Product Specifications 2 4 TT17J Memo ...
Page 36: ...TT17J 6 1 6 Exploded View and Parts List ...
Page 37: ...Memo 6 Exploded View Parts List 6 2 TT17J ...
Page 38: ...TT17J 6 3 6 Exploded View and Parts List 6 1 Front Cover CRT Ass y ...
Page 39: ...6 Exploded View Parts List 6 4 TT17J 6 2 Chassis Stand Ass y ...
Page 40: ...6 Exploded View Parts List TT17J 6 5 6 3 Rear Cover Ass y ...
Page 41: ...Memo 6 Exploded View Parts List 6 6 TT17J ...
Page 59: ...Memo 8 Block Diagrams 8 2 TT17J ...
Page 61: ...Memo 9 Wiring Diagrams 9 2 TT17J ...
Page 64: ...10 Schematic Diagrams TT17J 10 3 17 19 16 20 15 20 22 24 10 2 Video Part Schematic Diagram ...
Page 66: ...10 Schematic Diagrams TT17J 10 5 10 3 Decoder Part Schematic Diagram ...
Page 67: ...10 Schematic Diagrams 10 6 TT17J 10 4 Jack Part Schematic Diagram ...
Page 68: ...10 Schematic Diagrams TT17J 10 7 10 5 Led Part Schematic Diagram ...
