5 Troubleshooting
TP17LT
5-3
5-1-3 H_Deflection Failure
Does Horizontal paluse signal
appear at at Pin 8 of IC401?
Check IC401.
Yes
No
Does 110 Vp-p signal appear
at Collector of Q403?
Check Q443.
No
No
Check Q402, Q404, T401.
WAVEFORMS
4
3
2.00 V (IC401, #6)
CH1 P-P = 2.00V
CH1 RMS = 5.868V
4
1.00V (IC401, #8)
CH1 P-P = 1.00V
CH1 RMS = 1.298V
5
20.0 V (Q403, Collector)
CH1 P-P = 20.0 V
CH1 RMS = 46.80V
Does PWM output signal appear
at Pin 6 (H_out) of IC401?
Check IC401.
Check 12 V line.
Yes
No
Does DC 12V appear at
Pin 10 of IC401?
Yes
No
3
7-1-4 S Correction Failure
S1~S3 signals are right at each
frequency block?
Check S1 ~ S3 signal.
Check and replace Q404, Q409, Q410,
Q414, Q415, Q416
Yes
Check and replace IC201.
No
5
Summary of Contents for TP17LT
Page 2: ...Samsung Electronics Co Ltd March 2000 Printed in Korea P N BH68 00129K 01 ...
Page 8: ...2 Product Specifications 2 4 TP17LT Memo ...
Page 37: ...6 Exploded View and Parts List 6 1 Front Cover CRT Ass y TP17LT 6 3 ...
Page 38: ...6 2 Chassis Stand Ass y 6 Exploded View Parts List 6 4 TP17LT ...
Page 39: ...6 3 Rear Cover Ass y 6 Exploded View Parts List TP17LT 6 5 ...
Page 40: ...Memo 6 Exploded View Parts List 6 6 TP17LT ...
Page 56: ...7 Electrical Parts List 7 16 TP17LT 7 3 Different Parts List CDT ...
Page 58: ...Memo 8 Block Diagrams 8 2 TP17LT ...
Page 59: ...TP17LT 9 1 9 Wiring Diagram ...
Page 60: ...10 1 TP17LT 10 Schematic Diagrams 10 1 SMPS Part Schematic Diagram ...
Page 62: ...10 Schematic Diagrams 10 3 TP17LT 10 2 Micom Part Schematic Diagram ...
Page 64: ...10 Schematic Diagrams 10 5 TP17LT 10 3 H V OSC Vertical Part Schematic Diagram ...
Page 66: ...10 Schematic Diagrams 10 7 TP17LT 10 4 Deflection Part Schematic Diagram ...
Page 68: ...10 Schematic Diagrams 10 9 TP17LT 10 5 Video Part Schematic Diagram ...