Mitsubishi Electric DPro930SB-BK Service Manual page 103

TROUBLE SHOOTING
TABLE OF CONTENTS
Refer to User's Manual trouble shooting section before using this chart.
1. NO OPERATION, POWER LED FLASHING ................................................................ 6-2
2. NO OPERATION, POWER LED OFF ........................................................................... 6-3
3. VIDEO NOISE, NO SYNC ............................................................................................. 6-4
4. NO VIDEO ..................................................................................................................... 6-5
5. NO RASTER ................................................................................................................. 6-7
6. H. V. SYNC TROUBLE .................................................................................................. 6-9
7. POOR FOCUS ............................................................................................................ 6-10
8. POOR HORIZONTAL LINEARITY ............................................................................... 6-11
9. ROTATION PROBLEM ................................................................................................ 6-12
10. CG PROBLEM .......................................................................................................... 6-13
11. PURITY PROBLEM ................................................................................................... 6-14
12. SELF DIAGNOSIS FUNCTION ................................................................................. 6-15
12.1 X-ray Protector Operate ............................................................................................. 6-15
12.2 High Voltage Circuit No Operate ............................................................................... 6-15
12.3 Deflection Circuit No Operate .................................................................................... 6-15
12.4 Beam Protector circuit Operate ................................................................................. 6-15
12.5 Internal I2C bus line is abnormal ............................................................................... 6-15
6-1
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