參數(shù)資料
型號(hào): DP17L*
英文描述: Monitor_ICs:S1D2506A01 S5D2501E09
中文描述: Monitor_ICs:S1D2506A01 S5D2501E09
文件頁(yè)數(shù): 4/42頁(yè)
文件大?。?/td> 664K
DP17L*
1-1
1 Troubleshooting
1-1 Parts Level Troubleshooting
Notes:
1. If a picture does not appear, fully rotate the brightness and contrast controls clockwise and reinspect.
2. Check the following circuits.
No raster appears: Power circuit, Horizontal output circuit.
High voltage develops but no raster appears: Video output circuits.
High voltage does not develop: Horizontal output circuits.
1-1-1 No Power Supply
Chirping noise exists
Check and replace IC601.
Check and replace D601, FH1
Done.
No
Yes
Repeating start
Check and replace D606.
No
Yes
IC601 Pin 1 waveformis right
Check and replace D614, IC601,
Q602, ZD601.
Yes
No
C622 Voltage is 13 V ±0.5V
Check and replace IC201, IC301,
IC401, Q402, Q404.
Yes
No
Normal operation
Replace Main board.
Yes
Verify voltages.
Yes
No
WAVEFORMS
1
1
100 V (IC601, #1)
CH1 P-P = 100 V
CH1 RMS = 350.2 V
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