Stuck at projector class

Answer from: LeAnna
For chapter 3 silent hospital 3rd stage you're on a doctor classroom display with projector and screen ! open the safe to see a code number to pass this room

Doors and Rooms Level 3-3 Walkthrough the step is like these:
get code to open the suitcase then find the patient organs
use the patient chart as hint to start the letter on the panel
then use the skeleton to get the key code
now to get a whole guide, read the help below

Doors & rooms stage 3-3 solution:
take a look at the table with projector, get a patient chart
open the left drawer for name card, observe the name card to zoom
the suitcase have 4 numbers to solve, now from the name card find out 4 numbers
it's 1485 ! use it to open the suitcase and get a usb

click the bottom left side of the projector, there's a hole
use the usb on it
now click the board to see some hint :
sila : brain
uj : lung
ruly : stomach
aska : liver

open your inventory and observe the patient chart :
use the date as column or row, to start put on the letters of anatomy on the big panel near door
aska 4.4
ruly 1.3
uj 3.5
sila 1.5
watch out, you must repeat it again if you press the wrong square

so now you will have :
4.4 LIVER
1.3 STOMACH
3.5 LUNG
1.5 BRAIN (down)
get the skull inside, if you observe you can see word shadow as another hint
use the skull and put it on the table near the board
see the shadow on the right side of the board ? it's a number 31371
input on the keyboard near door and move to stage 3-4