Table of Contents
Advertisement
Section F
3.17.+15V CONV. ALARM
The converter board PQ1 +15V power supply is out of range
(tolerance ± 10 %).
The microcontroller on the converter board PQ1 acknowledges the
alarm, temporarily disables the converter electronics and
communicates the alarm to the host board PC1.
The host provides a diagnostic message on the display and waits
for the alarm to self-reset before starting a new exposure
sequence.
Check the power supply value on test points TP3 and TP8 (GND)
using a digital multimeter (VDC) and by checking the LED H6
(ON=OK, OFF=NOT OK).
Check whether the common power supply +400VDC is out of
range, on the connector X41 pins 1-2 of the converter board.
Check the reference voltage of the A/D converter (+5V) on TP19
and TP8 (GND): adjust if necessary by acting on potentiometer
P1(is mandatory to use an high resolution, 4digits
multimeter).
Possible causes:
(1)
check whether fuse F3 has blown
(2)
converter board PQ1 defective.
f I
h t
e
c
o
n
v
e
t r
r e
b
o
a
d r
P
Q
p
o r
g
a r
m
s
T
u
b
e
c
i l a
r b
t a
o i
n
a
s (
e
e
h t
e
e r
e l
v
a
t n
p
a
a r
g
a r
p
h
The alarm is captured and stored as soon as it as it is detected.
Press the RESET pushbutton on the control panel to cancel the
alarm (if expired).
F-8
W
A
R
N
N I
G
1
n
e
e
d
s
o t
b
e
e r
p
a l
c
e
, d
h t
e
n
d
f V
u t
b
e
e
d
t i
n i
g
m
u
t s
b
e
p
e
s
f o
h t
s i
s
e
t c
o i
n
f
r o
m
o
e r
i
f n
r o
3.18.+31V CONV. ALARM
The converter board PQ1 +31V power supply is out of range
(tolerance ± 1,5 %).
The microcontroller on the converter board PQ1 recognizes the
alarm, temporarily disables the converter electronics and
communicates the alarm to the host board PC1.
The host provides a diagnostic message on the display and waits
for the alarms to self-reset before starting a new exposure
sequence.
Check the power supply value on test points TP5 and TP8 (GND)
using a digital multimeter (VDC) and by checking the LED H5
(ON=OK, OFF=NOT OK).
Check whether the common power supply +400VDC is out of
range, on the connector X41 pins 1-2 of the converter board.
Check the reference voltage of the A/D converter (+5V) on TP19
and TP8 (GND): adjust if necessary by acting on potentiometer P1
(is mandatory to use an high resolution, 4digits
multimeter).
Possible causes:
(1)
check whether fuse F2 has blown
(2)
converter board PQ1 defective.
s
e
v r
c i
e
f I
h t
e
c
o
n
e v
t r
f r
r o
m
e
d
p
o r
g
a r
m
s
T
b u
m
t a
o i
n
. )
(
e s
e
t
e h
e r
e l
a v
The alarm is captured and stored as soon as it is detected.
Press the RESET pushbutton on the control panel to cancel the
alarm (if expired).
(03.0)E
ORTHORALIX 9200
W
A
R
N
N I
G
r e
b
o
a
d r
P
Q
1
n
e
e
d
s
o t
b
e
e
a c
b i l
a r
o i t
n
a
d n
V
t f
b u
e
e
d
i t i
t n
p
a
a r
g
a r
p
s h
f o
h t
s i
e s
c
o i t
f n
DENTSPLY Gendex
Service Manual
e r
p
a l
c
e
, d
h t
e
s
e
v r
c i
e
g n
m
u
t s
b
e
p
e
f r
r o
m
e
d
r o
m
o
e r
f n i
r o
m
a
o i t
n
. )
Advertisement
Chapters
Table of Contents
