XOCECO LC20H3D, Service Manual

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Serial No. of Parts
Identification criteria for the bright spot and dark spot of the LCD screen
Q’ty allowed Distance between two spots
Category criteria
15" 20" 22" 30" 40" 15" 20" 22" 30" 40"
One single spot ≤ 5 ≤ 2 ≤ 5 ≤ 2 ≤ 3
2 neighboring spots
≤ 2 ≤ 1 ≤ 2 ≤ 1 ≤ 1
Bright
spo
t
Total No. ≤ 5 ≤ 2 ≤ 5 ≤ 2 ≤ 3
≥ 15mm
One single spot ≤ 6 ≤ 7 ≤ 5 ≤ 4 ≤ 10
Two neighboring
spots
≤ 2 ≤ 2 ≤ 2 ≤ 1 ≤ 5
Dark
spots
Total No. ≤ 6 ≤ 7 ≤ 5 ≤ 4 ≤ 10
≥ 15mm
≥ 10mm ≥ 5mm
Total defected point ≤ 8 ≤ 7 ≤ 5 ≤ 4 /
Notes:
1. Definition of defected point (bright spot, dark spot): It is identified as a defected point if its
area exceeds 1/2 of a single picture element (R,G,B).
2. Definition of bright spot: It is identified as a bright spot if it is bright in the state of dark field
and its bright size remains unchanged
3. Definition of dark spot: It is identified as a dark spot if it is dark in the state of white field and
its dark size remains unchanged
4. Definition of two neighboring points: Defects of a group of picture elements(RB,RG,GB).
15" 17" 20"
Sell area America America Europe America
LCD panel Samsung
335-15012-00
Samsung
335-17050-00
Chimei
335-2000F-00
Back light board 667-L15H3-14 667-L17H3-14 667-L20H3-14A
High frequency board 667-L15H3S-55 667-L15H3-55 667-L20H3-55
Main board 667-L15H3-01 667-L17H3-01 667-L20H3-01
adapter 302-L1510-02 302-AD16A-02 302-AD16A-02
antetype 203-L15H30-01 203-L17H30-01
Sell area Europe Europe Europe America
LCD panel AU335-15112-00 AU335-17051-0
0
AU335-2000F-00
Back light board 667-L15H3-14A 667-L17H3-14A 667-L20H3-14A
High frequency board 667-L15H3S-55 667-L15H3S-55 667-L20H3-55
Main board 667-L15H3-01BS 667-L17H3-01S 667-L20H3-01
adapter 302-L1510-02 302-AD16A-02 302-ADA6A-02
antetype 203-L15H30-03 203-L17H40-02 203-L20H30-02