uniphy PHYACTION 190, Информация о сервисе

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Auteur: W. Thijssen Paraaf:
File: C:\WINDOWS\Temporary Internet
Files\OLK1242\EL190001.DOC 
Uniphy B.V.
Versie: 1.1 Datum: Pagina: 5 /
Nr. Name Description Val Comment
If no key is pressed during power
up, check the keyboard and the
keyboard PCB. ted key. This function
also discourages the
user if trying to enter
the service menu.
7. Internal voltages
50 err_Voltage General voltage error for internal
use. (Mask for detecting an internal
voltage error). For internal use only.
51 err_Vsense0 Vus is too high ( > 3.0V ) at power
up.
Check the SMPS in the ultrasound
unit.
Check the PWM of the
microcontroller. xx Value represents the
measured voltage:
Hexadecimal
representation of the
measured voltage *
10
(so at 3.5V:
decimal 35 -> 23h).
52 err_Vsense1 Vus is too low ( < 23.5V ) at the
reference value.
Check the SMPS in the ultrasound
unit.
Check the connections between
main PCB and ultrasound unit.
Check the power supplies. Check
the PWM. xx Value represents the
measured voltage:
Hexadecimal
representation of the
measured voltage *
10
(so at 22.5V:
decimal 225 -> E1h).
53 err_Vsense2 Vus too high after discharge. ( >
17.0V ).
Check the SMPS in the ultrasound
unit.
Check the PWM. xx Value represents the
measured voltage:
Hexadecimal
representation of the
measured voltage *
10
(so at 22.5V:
decimal 225 -> E1h).
54 err_VPotRef The value of VPotRef is outside its
limits ( < 3.75V = BFh or >
4.40V = E0h).
Check the wiring of the intensity
potentiometer. xx Value is the (8-bit)
measured voltage of
PotRef.
55 err_VPotNul The intensity potentiometer switch
indicates that the potentiometer
should be at zero, but the measured
voltage is too high
( > 0.19V = 0Ah).
Check the wiring of the
potentiometer.
Check the processor lines. xx Value is the (8-bit)
measured voltage of
the intensity
potentiometer.
56 err_VRef The reference voltage is outside its
limits ( < 2.39V = 79h or
> 2.63V = 86h). xx Value is the (8-bit)
measured voltage of
Vref.