Hello, I'll put it short:

-PIC 16F628A
-Vdd is 5.04 Volts
-Quarz is available
-PORTB can give a high level.

Problem:
-RA3 doesn't get a high level.

Done so far:
Code:
-
Start:
	CMCON.0 = 1
	CMCON.1 = 1
	CMCON.2 = 1

           Pause 5000
-	Trisa.3 = 0
	High Porta.3
	Pause 5000
	Low Porta.3
           GOTO Start
-Ideas ?