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4.2 : No Picture (Component/Video)
BCH
Component
No Picture
*
Check
NG
J2600 Con
Check if input OSD
VIDEO_DET
is GREY OUT
at R2626,
OK if it is highlighted
CR_DET at
R2650
OK
OK (Vpp: 3.3 V)
**
Detailed check all parts
at VIDEO_DET signal
Path [R2627] and CR_DET
signal path [R2637]
OK (Vpp: 3.3 V)
Check wave
NG (Vpp: 0 V)
Between
C2602/C2605/C2607
and IC1000
OK (Vpp: 1
V)
Muffin [IC1000]
J2600 Connector
Problem
Problem
[All voltage measurement using Oscilloscope]
TV Business Division
No Picture
NG (Vpp: 0 V)
NG (Vpp: 0 V)
**
Detailed check all parts
at signal path of:
Y0P : [D2601/R2606/C2603/
R2639/R2604/VD2602/C2602]
PB0P : [VD2603/R2603/C2601/
R2638/R2607/C2605]
PR0P : [VD2601/R2610/C2606/
R2611/C2607]
OK
J2600 Connectivity
Problem
*
OK Condition : No solder splash can be seen
NG Condition : Solder splash can be seen
Video
No Picture
NG
Check if input OSD
is GREY OUT
OK if it is highlighted
OK
NG (Vpp: 0 V)
Check wave between
NG
C2611 and IC1000
OK (Vpp: 1 V)
Muffin [IC1000]
Parts Broken
Problem
*
Check J2600
NG (Vpp: 0 V)
Connection,
VIDEO_DET
At R2626
OK (Vpp: 3.3 V)
**
Detailed check all
NG (Vpp: 0 V)
parts at VIDEO_DET
Signal Path [R2627]
OK (Vpp: 3.3 V)
**
Detailed check all parts
at CVBS2P signal path
[D2601/R2606/C2603/
R2640/R2619/C2611/VD2602]
J2600 Connector
J2600 Connectivity
Problem
Problem
**
OK Condition : No part short-circuited
NG Condition : Part short-circuited
(Supplementary
information)
NG
OK
Parts Broken
53
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