Troubleshooting
GS Series 630-635 Service Manual
39
020-001224-02 Rev. 1 (08-2018)
Verify power functionality
P-2
Is the status
LE
D f
las
hing r
e
d?
En
su
re
tha
t the airflo
w
vents are not blocked
a
nd that th
e ope
rating
te
mpe
rature is
le
ss th
an
40o
C
M
easure th
e DC vo
lta
ge on
J27
-J33 pin
1
on the main
board is the output 12V+/-
10%?
Replace the main board
Yes
Is the projector
functioning as
expected and
is the status LED
green?
Replac
e
the
thermal switch
No
Measu
re the DC voltage
o
n J2
7-J33
pin2 on
the main
board is
the output between
1V-3V
+/-
10%?
No
Replac
e the
co
rrespon
ding
fan
o
r
b
low
er
No
Is the projector functioning as
exp
ecte
d and
is the status
LED green?
No fault
found
End
No
Ye
s
No
Yes
+12V
Yes
0V
0V
Yes