- No Power In Vitron LED TV Repaired
- MAP3202 LED Driver IC Failure In 42″ LED TV
- LG LED Television Model 32LB561U Dead, Power On LED Red Now Repaired
- Power Blinks In LG LED TV Repaired
- Shorted LED Driver Mosfet In Hisense LED TV Repaired
- Restored Philips LED TV Fully Water Logged In Floods
- Samsung Smart TV Powering On/Off
- Blinking Stand By LED Light In LED TV Repaired
- No Tuning Problem In LED TV Repaired
- Sanyo DP40142 LED/LCD TV Repair
iMicro SMPS Repaired
I was called by a co-worker because her PC was restarting continuously and a message was shown in Display: Power supply surges detected during the previous power on. ASUS Anti-Surge was triggered to protect system from unstable power supply unit! Press F1 to Run Setup.
This is a bad situation because she could not work. Her PC was an ASUS model P8H61-M LX3 Plus R2.0
Of course first thing done was to disarm the SMPS. The SMPS brand was iMicro and made in China
All the e-caps were tested with the Blue ESR Meter and all were good. Surrounding components also found to be good. It left only one IC that I have not replace.
The part number was SD6109 (Voltage mode PWM Power Supply with built-in supervisor, protection and regulation for PCs).
Now there was need to change this IC and thanks God I had a similar one from another broken SMPS (same brand and same model) with the secondary coil already burnt-see the photo below.
The bad IC was changed with the IC I had removed earlier and when the power was applied, the power supply started to work normally. I have tested it for several days and it was perfectly good.
Note: It is good to keep some bad boards as we can salvage the components
In the next photo you can see some features of this PC and you will realize it was worth to save this PC.
This article was prepared for you by Humberto Rodriguez, one of our ‘Master Authors’ from Cuba.
Please give a support by clicking on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.
P.S- If you enjoyed reading this, click here to subscribe to my blog (free subscription). That way, you’ll never miss a post. You can also forward this website link to your friends and colleagues-thanks!