Kortek corporation
83
of
99
PDP R&D Center
F - B U F
F E 1
E F 1
I C 2 6 0 4 ( O u t p u t )
I C 2 6 0 4 ( I n p u t )
E L 1
E C 1 _ B l o c k
E C 2 _ B l o c k
E C 3 _ B l o c k
E C 4 _ B l o c k
E C 5 _ B l o c k
E C 6 _ B l o c k
E C 7 _ B l o c k
3 5
4 6
C o n trol_D a t a ( S T B ) - C h e c k c o n n e c o t o r ( 8 0 p in)/IC pin
3
1 7
3 5
L o g i c B u f f e r " E "
7
1 3
5
1 5
F - B U F
F E 1
E F 1
I C 2 6 0 1 ( O u t p u t )
I C 2 6 0 1 ( Input)
E L 2
E C 1 _ B l o c k
E C 2 _ B l o c k
E C 3 _ B l o c k
E C 4 _ B l o c k
E C 5 _ B l o c k
E C 6 _ B l o c k
E C 7 _ B l o c k
C o n t r o l _ D a t a ( B L K ) - C h e c k c o n n e c t o r ( 8 0 p i n ) / I C p i n
3
1 7
3 5
L o g i c c o n n e c t o r ( 8 0 p i n ) / I C p i n
7
3
5
1 5
4 9
3 2
8
6
S T B
P O L
B L K
1 2
1 4
1 1
4 6
C o n t r o l _ D a t a - C h e c k L o g i c M A I N O u t p u t
7
1 3
L E 0 1
L E 0 2
I C 2 0 2 6 ( O u t p u t )
I C 2 0 2 6 ( I n p u t )
C L K
3 5
3 5
4 6
9
OK
NG
OK
NG
OK
Check Control signals
of
Logic
MAIN
NG
Check pin Open/Short
→ Replace the IC
Check pin Open/Short
→ Replace the IC
Check pin Open/Short
→ Replace the IC