參數(shù)資料
型號: DP17L*
英文描述: Monitor_ICs:S1D2506A01 S5D2501E09
中文描述: Monitor_ICs:S1D2506A01 S5D2501E09
文件頁數(shù): 10/42頁
文件大?。?/td> 664K
1 Troubleshooting
DP17L*
1-7
1-1-13 High Voltage Failure
IC401 Pin 28 OSC pulse exists
Q402 Gate driving pulse exists
Check and replace Q401.
Yes
Yes
No
Check and replace IC401
and +12 V line.
No
Q402 Drain pulse exists
Check and replace Q403,
L402.
Yes
No
Done
WAVEFORMS
10
3
10
2.00 V (Q402, Gate)
CH1 P-P = 2.00 V
CH1 RMS = 7.692V
3
2.00 V (IC401, #28)
CH1 P-P = 2.00 V
CH1 RMS = 5.868 V
11
50.0 V (Q402, Drain)
CH1 P-P = 50.0 V
CH1 RMS = 73.7V
IC101 Pin 12 input exists and
varies with different patterns
Check and replace IC101.
Input full white pattern to monitor.
No
Yes
No
T501 Pin 8 output exists
Check and replace T501.
Yes
No
IC201 Pin 26 output exists and
varies with different patterns
Check and replace IC201.
Yes
No
Done
Check CN102.
1-1-14 ABL Failure
11
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