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5 Troubleshooting
5-4
TP17LT
5-1-5 H_Lin. Failure
IC201 Pin 21 voltage varies with
different H_Lin. DAC values?
IC603 Pin 9 voltage varies with
different H_Lin. DAC values?
Check +12 V, –10 V line.
Check some parts around IC603.
Check Q412, Q413, T402.
Yes
Yes
No
Replace IC201.
No
5-1-6 Invariable H_Size
IC401 Pin 6 voltage varies with
different B_Out DAC values?
Q402 Gate output duty varies with
different B_Out DAC values?
Check some parts around Q402,
IC401 Pin 3 ~ 6.
Yes
No
Check and replace IC401.
No
5-1-7 Abnormal H_Size
IC401 Pin 11 output duty
varies with different B+ offset
DAC values?
Q408 Collector waveform is
right?
Check and replace Q405, Q406, Q407,
Q408.
Check some parts around D409, L401.
Yes
Yes
No
Check and replace IC201.
No
WAVEFORMS
6
6
200 V (Q408, Collector)
CH1 P-P = 200V
CH1 RMS = 387.2V
Содержание TP17LT
Страница 2: ...Samsung Electronics Co Ltd March 2000 Printed in Korea P N BH68 00129K 01 ...
Страница 8: ...2 Product Specifications 2 4 TP17LT Memo ...
Страница 37: ...6 Exploded View and Parts List 6 1 Front Cover CRT Ass y TP17LT 6 3 ...
Страница 38: ...6 2 Chassis Stand Ass y 6 Exploded View Parts List 6 4 TP17LT ...
Страница 39: ...6 3 Rear Cover Ass y 6 Exploded View Parts List TP17LT 6 5 ...
Страница 40: ...Memo 6 Exploded View Parts List 6 6 TP17LT ...
Страница 56: ...7 Electrical Parts List 7 16 TP17LT 7 3 Different Parts List CDT ...
Страница 58: ...Memo 8 Block Diagrams 8 2 TP17LT ...
Страница 59: ...TP17LT 9 1 9 Wiring Diagram ...
Страница 60: ...10 1 TP17LT 10 Schematic Diagrams 10 1 SMPS Part Schematic Diagram ...
Страница 62: ...10 Schematic Diagrams 10 3 TP17LT 10 2 Micom Part Schematic Diagram ...
Страница 64: ...10 Schematic Diagrams 10 5 TP17LT 10 3 H V OSC Vertical Part Schematic Diagram ...
Страница 66: ...10 Schematic Diagrams 10 7 TP17LT 10 4 Deflection Part Schematic Diagram ...
Страница 68: ...10 Schematic Diagrams 10 9 TP17LT 10 5 Video Part Schematic Diagram ...
Страница 70: ...10 Schematic Diagrams 10 11 TP17LT Memo ...