Daewoo DSC-34W70N, Руководство по обслуживанию

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8. Troubleshooting charts
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No Picture
(NTSC Signal)
OSD is on the screen.
NO
Check OSD signal of I701.
R/G/B OSD : #64, 63, and 62
BL OSD : #61 Check OSD signal of UC107.
R/G/B OSD : #50, 51, and 52
BL OSD : #49
Check video signal of IA1.
Video1 :CVBS to #43, Y to #45,
and C to #47
Video2 :CVBS to #1
Video3 :CVBS to #7, Y to #9,
and C to #11
Check each
input signal.
When CVBS input, CVBS is to #34 of IA1.
When Y/C input, Y/C is to #37 and #39 of IA1.
When CVBS input, CVBS is to #88 of UC100.
Y/C signal of 3D comb filter is to #84 and #83 of UC100.
When Y/C input, Y/C is to #88 and #96 of UC100.
Y/C signal is to #73 and #71 of IC UC104.
Check below signal of UC104
-Y and C signal : #73, #71
-Picture Bus Y(MY0~MY7)
-Picture Bus C (MC0~MC7)
-V sync pulse (VSM) : #57
-Active video output (AVO) : #54
-Clock out (LLC2) : #27
Check below signal of UC106
-Picture Bus Y(MY0~MY7)
-Picture Bus C (MC0~MC7)
-V sync pulse (VSM) : #26
-Active video output (AVO) : #27
-Clock out (LLC2) : #18
-Y /Cb /Cr out: #87, 84, and 90
-H/V sync : #4, 5
Check below signal of UC107
R/G/B out : #35, 37, and 39
Check TV video signal of IA1.
CVBS of main tuner (TU01) : #41
CVBS of sub tuner (TU02) : #27
Check DVD signal to UC104.
Y/Cb/Cr : #5, 4, and 3
Check Tuner
(TU01 & TU02).
No Picture
(DVD Signal)
Check below signal of UC107
Y/Cb/Cr in : #69, 68 and 67
H/V sync : #66, 65
No Picture
(DTV Signal)
Check DTV signal of UC107
Y/Pb/Pr in : #5, 4 and 3
OSD
OSD
NO
END
AV Signal RF Signal