Question about HP LaserJet M1005 MFP Printer
Str z2062 power supply burns
First of all; it is DANGEROUS to fix a power supply if you don't know what you are doing. Thus; don't even think about to open power supply tower, if you are not qualified enough.
If you are a qualified person, you can go on with below steps by taking risk on your own.
You must discharge biggest capacitors in order to avoid any fatal electrical shock. Even it is disconnected from electricity plug, power supply may keep high voltage in it for long time. Once you discharge big capacitors; you may diassemble power supply tower. At your question you mentioned about burned power supply which makes it a little bit easier. (I assume you discharged big capacitors) Once you open psu tower; do visual inspection on each capacitor. If there is a burned area start with it. Remove blowed capacitors and replace them with same valued new capacitors. If you can't see the values on blowed capacitors; you need to find board diagram of your psu. Otherwise you can't find suitable one to replace. Besides; check form of other capacitors. If there is a change on any capacitor's form, replace them too. The best way to find out dead capacitors is using capacitor testers. If problem caused by another type item; its not easy to find it as finding bad capacitors.
Posted on Nov 19, 2014
Testimonial: "HI Sir, How r u ? I'm experience technical person of this field. Capacitors r all fine. STR Z2062 and other small smd type resistance were burn. i was try to change str and resistance but power supply not worked. when i was plug in power supply and switch on power comes on 10v Capacitor ( who is Located after driver transformer ) for a second and disappear 2 or 3 second after. please give me more suggestion. thanks you for giving your valuable time."
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Posted on Jan 02, 2017
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