5 Troubleshooting
DP15H*/DP17L*
5-9
5-1-16 No Video
IC101 Pins 5, 8 and 10 inputs
are right?
IC101 Pins 21, 24 and 26
outputs are right?
Check I
2
C bus and +12 V line.
Yes
Yes
No
Check the signal cable connection.
No
IC103 Pins 1, 2 and 3 outputs
are right?
Check +12 V, +72 V line.
Check and replace IC103.
Yes
No
Cathode DC levels are right?
Check +72 V line.
Check and replace QR01, QR02,
QG01, QG02, QB01, QB02.
Yes
No
G2 voltage is right?
Check G2 wire, CRT Socket board,
and FBT.
Change CRT.
Yes
Done.
No
Check signal cable and connection.
WAVEFORMS
15
16
17
15
1.00 V (IC101, #5, 8, 10)
CH1 P-P = 1.00V
CH1 RMS = 2.452V
16
1.00 V (IC101, #21,24,26)
CH1 P-P = 1.00V
CH1 RMS = 2.792V
17
20.0 V (IC103, #1, 2, 3)
CH1 P-P = 20.0V
CH1 RMS = 40.52V
Summary of Contents for DP15HS
Page 8: ...2 Product Specifications 2 4 DP15H DP17L Memo ...
Page 35: ...6 Exploded View and Parts List 6 1 DP15HS DP15H DP17L 6 1 ...
Page 36: ...6 Exploded View Parts List 6 2 DP17LS 6 2 DP15H DP17L ...
Page 37: ...6 1 1 Front Cover CRT Ass y DP15HS 6 Exploded View Parts List DP15H DP17L 6 3 ...
Page 38: ...6 1 2 Chassis Stand Ass y DP15HS 6 Exploded View Parts List 6 4 DP15H DP17L ...
Page 39: ...6 1 3 Rear Cover Ass y DP15HS 8 Exploded View Parts List DP15H DP17L 6 5 ...
Page 40: ...6 2 1 Front Cover CRT Ass y DP17LS 6 Exploded View Parts List 6 6 DP15H DP17L ...
Page 41: ...6 2 2 Chassis Stand Ass y DP17LS 6 Exploded View Parts List DP15H DP17L 6 7 ...
Page 42: ...6 2 3 Rear Cover Ass y DP17LS 6 Exploded View Parts List 6 8 DP15H DP17L ...
Page 57: ...7 Electrical Parts List 7 15 DP15H DP17L 7 3 Different Parts List CDT ...
Page 58: ...Memo 7 Electrical Parts List DP15H DP17L 7 16 ...
Page 60: ...Memo 8 Block Diagrams 8 2 DP15H DP17L ...
Page 62: ...10 1 DP15H DP17L 10 Schematic Diagrams 10 1 SMPS Part Schematic Diagram ...
Page 64: ...10 Schematic Diagrams 10 3 DP15H DP17L 10 2 Micom Part Schematic Diagram ...
Page 66: ...10 Schematic Diagrams 10 5 DP15H DP17L 10 3 H V OSC Vertical Part Schematic Diagram ...
Page 68: ...10 Schematic Diagrams 10 7 DP15H DP17L 10 4 Deflection Part Schematic Diagram ...
Page 70: ...10 Schematic Diagrams 10 9 DP15H DP17L 10 5 Video Part Schematic Diagram ...
Page 72: ...10 Schematic Diagrams 10 11 DP15H DP17L Memo ...
Page 73: ...Samsung Electronics Co Ltd May 1999 Printed in Korea Code No BH68 00129A ...