Kortek corporation
78
of
99
PDP R&D Center
10.7.1 R_Data Address Open (
Red Cell
Vertical Lines don’t exist on Video)
Check Logic Main outptut
Check pin Open/Short → Replace the IC
Check R_Data of 80pin connector Output
EL1
EL2
EC1_Block
75,72,67,64
EC2_Block
59,56,51,32
EC3_Block
27,24,19,16
EC4_Block
11,8
75,72
FE1
EF1
EL2
FC5_Block
74,73,66,65
7,815,16
67,64,59,56
FC6_Block
58,57,26,25
23,2455,56
51,32,27,24
FC7_Block
18,1710,9
63,6471,72
19,16,11,8
Check R_Data of Logci MAIN Output
LE01
Output pin
Input pin
IC2031
IC2030
IC2031
IC2030
EC1_Block
6,9,14,17
3,9,16
5
17,11,4
15
IC2030
IC2029
IC2030
IC2029
EC2_Block
22,25,30,49
12,18
7,14
8,2
13,6
IC2028
IC2027
IC2028
IC2027
EC3_Block
54,57,62,65
3,9,16
5
17,11,4
15
LE01
LE02
IC2027
IC2026
IC2025
IC2027
IC2026
IC2025
EC4_Block
70,73
6,9
12,18
16
5
8,2
4
15
IC2025
IC2024
IC2025
IC2024
FC5_Block
14,17,22,25
12,18
7,14
8,2
13,6
IC2023
IC2022
IC2023
IC2022
FC6_Blcok
30,49,54,57
3,9,16
5
17,11,4
15
IC2022
IC2021
IC2022
IC2021
FC7_Block
62,65,70,73
12,18
7,14
8,2
13,6
NG
[ C O F ]
A d d r e s s O p e n
C O F
C h e c k A d d r e s s o p e n .
Check outputs under 96 line
of 384-line-Output
① Logic
Buffer
② Logic
Buffer
Check output-signals(16,9pin)
of the VHCT244(IC2602,03,08,
05,07,06,09,00. IC2700,01,05,
02,04,03)
Check output-signals(13,16,49,
52pin)of the COF CON/80pin
O K
N G
N G
N G
Replace the Module
After check Pin-shorting,
c o ldsoldering & Pin-opening,
Check contact and aligned state
o f C O F c o n n e c t o r
Check each input-signals(4,11pin)
of the VHCT244
Refer to
the table
N G
Logic Buffer
O K
O K
COF is Fault-Module⋯
Replace the Module
After check
coldsoldering &
P in-shorting,
R e p lace the IC
☞ I n c h e c k i n g i n p u t o r o u t p u t p i n s ,
C h e c k “N o s o l d e r / C o l d s o l d e r / L e a d b e n t ” o n C o n n e c t o r L e a d s
OK
Содержание P42SV
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