how to avoid insomnia

tips to avoid insomnia:

sleep early

switch off lights in bedroom

avoid noise in bedroom

have dinner early

wake up early (5-6 am) and go for a walk/jog for atleast hald an hour

avoid sleeping during day

avoid tea / coffe/ caffinated drinks, especially after 6 pm.

have discipline in life...

if nothing works, consult your psychiatrist.

Sunset

Tungabhadra Dam- Hospet

Sunset at TB dam, Hospet

ITPL- Bangalore- Discoverer building at night

Cholecystectomy specimen- Gall badder with gall bladder stone

Cavernous Hemangioma of scalp- image

Appendectomy specimen- 10 cm long appendix

Rheumatoid arthritis- toes

Hammer toes

Hallux valgus

Rheumatoid arthritis- finger changes

Typical swan neck deformity and ulnar deviation of fingers in this old lady with RA

Venous ulcer of leg

Pseudoganglia

Neuro fibromatosis image

Huge lipoma over the back.

Platy-nychia with associated iron deficiency anaemia.

The green cover of amboli ghats

Computer keyboard ripped open

I ripped open my usb keyboard as it was not working inorder to learn and try fixing it.

when the keys are pressed  a contact is made between two electrode points below the key (the white sheet of plastic with lots of lines actually has 3 layers of plastic, with two on outer side having conducting stuff just below the key and a middle neutral layer of plastic sheet in order to avoid contact between the electrode unless a key is presed)

the information is then transferred to a small electronic chip from which the wore connects the keyboard either  to ps/2 port or the usb port.

plastic sheet with lots of printed conducting lines. has 3 layers

Juction between plastic membrane and the circuit.

the circuit   visible after removing the membrane.

the keys with circuit on top left corner. 

close up of keys. Each key has a central hard portion to press against the membranes in order to generate a signal.

Fixing Refrigerator problem

I Encountered  problem with Lg auto defrost refigerator..

It started making lot of noise and stopped defrosting automatically. lots of ice had accumulated the freezer compartment.

And i begun to solve the problem. 

I googled around and found that this problem was not uncommon and that there was poor customer care response and other blah blah.. but i wanted to fix it myself ... after some more searching i found that there is some thing called a defrost timer that switches on a warmer for few minutes every 6-8 hours to defrost or melt the ice formed . 

I checked the drain where the water from ice melted drains into a tray and is evaporated by heat from the compressor connecting ducts.. it was too dry: means that no defrosting- may be its blocked..

and i tried to open the back panel safely to explore the refrigerator but in vain....

but i was able to partially open the plastic covering the freezer compartment and saw huge amount of ice accumulating there. and i started to remove it manually as well by injecting hot water into the ducts as shown below. then the melted ice started draining thru the drain.

After this i began to solve the cause for not defrsting..

As was given in many sites i tried to locate capacitor and discharge it.but while doing that i saw the defrost timer which appeared burnt. i located the capacitor and disconnect it instead of discharging it, as i didn't have the resistor to discharge it safely..Then i took out the defrost timer and dissected it, to find the burnt coil of stepper motor driving the timer.

so need to replace the timer..

got the timer from Infantry road, Bangalore for 350 bucks and fixed it. the noise problem may be due to improper balancing and it stopped after proper alignment.

Dissected defrost timer

New defrost timer in hand. below is the dissected one.

the levers and wheels of defrost timer.

the burnt stepper motor coil of timer

this is the  new one