20
If the unit is in a plastic case, the digital board is located on the bottom of the case, requiring the user to partially
d i s a s s e m b l e t h e u n i t t o g a i n a c c e s s t o t h e j u m p e r s b l o c k . I f t h e u n i t h a s t h e O S D o p t i o n ( S T - x U - O ) , the procedure
will be different than
t h e p r o c e d u r e u s e d
i f t h e u n i t d o e s n o t h a v e t h e O S D o p t i o n .
F o r m o d e l s S T - x U ( n o O S D ) :
1 . M a k e s u r e t h e S T - x U i s c o m p l e t e l y d i s c o n n e c t e d f r o m a l l c o m p u t e r c o m p o n e n t s . B e s u r e t o
u n p l u g t h e S T - xU from the electrical outlet.
2 . R e m o v e t h e t w o p h i l i p s - h e a d s c r e w s f r o m t h e u n d e r s i d e o f t h e S T - x U a n d s e t t h e S T - x U o n a f i r m a n d
flat surface, bottom down (see Fig. 20).
3 . R e m o v e t h e t o p h a l f o f t h e p l a s t i c c a s e f r o m t h e S T - xU.
N O T E : B e f o r e p r o c e e d i n g , i t i s i m p o r t a n t t o d i s c h a r g e a n y s t a t i c c h a r g e y o u m a y b e c a r r y i n g b y t o u c h i n g a n y l a r g e
m e t a l o b j e c t ( a w a y f r o m t h e S T - xU).
4 . T h e f i r s t v i s i b l e c i r c u i t b o a r d , t h e u p p e r m o s t b o a r d , i s t h e v i d e o b o a r d . A l o n g t h e b a c k o f t h e v i d e o b o a r d
a r e b e t w e e n 3 a n d 5 v i d e o r i b b o n s ( d e p e n d i n g o n h o w m a n y m o n i t o r s t h e u n i t i s d e s i g n e d t o c o n n e c t t o )
c o n n e c t i n g t h e v i d e o b o a r d t o a c i r c u i t b o a r d o n t h e r e a r p a n e l w i t h 1 5 H D c o n n e c t o r s o n i t . D i s c o n n e c t
t h e f l a t r i b b o n c a b l e s f r o m t h e v i d e o b o a r d t o e a c h h e a d e r o n t h e r e a r p a n e l . T a k e n o t e a s t o w h e r e t h e y
g o f o r r e - a s s e m b l y l a t e r . D o n o t d i s c o n n e c t t h e m f r o m t h e v i d e o b o a r d h e a d e r s ( s e e F i g . 2 1 ) .
5 . T h e r e a r e 4 n u t s t h a t s e c u r e t h e v i d e o b o a r d t o s t a n d o f f s . R e m o v e t h e 4 n u t s .
Fig. 20
Philips-head screws
holding the plastic case
together
View of bottom of plastic case
Fig. 21
Disconnect video
ribbons here
Nuts (4) secure the circuit board
to the standoffs.
Video Board
Digital Board
15HD Connector
Overhead view of video board on top of digital board.
The jumper block is located
below the LED board.
LED Board
Front Panel
Rear Panel
