Panasonic KX-FLM553RU Service Manual ▷ View online
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* This Adjustment should be done with a single High Voltage Board.
* As for the High Voltage Probe, HV PROBE 9014 of HIOKI electric co. or the equivalent should be used.
* As for the tester, FLUKE 85 III multimeter or the equivalent should be used.
* Be careful not to touch the terminals during adjustment because the high voltage is used.
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2.3.16. POWER SUPPLY BOARD SECTION
2.3.16.1. KEY COMPONENTS FOR TROUBLESHOOTING
Check the following parts first: F101, D101-D104, C106, Q101, PC101 and IC101.
This comes from our experience with experimental tests. For example: power supply and lightning surge voltage test, withstanding
voltage test, intentional short circuit test, etc.
voltage test, intentional short circuit test, etc.
Caution:
If you find a melted fuse in the unit, do not turn on the power until you locate and repair the faulty parts (except for the fuse);
otherwise the fuse will melt again and you cannot pinpoint the faulty point.
In most cases, the symptom is that nothing is output. It is more likely that the fault is in the primary side rather than the secondary
side. Check the primary side first.
side. Check the primary side first.
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