Changhong CHD User Guide
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CHD
CHD ( CHD2992 CHD2983 ) STR-F6656 STR-FSTR-F6454 STR-F6658 STR-F6626
STR-F6656 MOS ,..
1
220V XP800 S801 / F801 T803B R801 CZ802 T803B
经第一道抗干扰电路后的220V C802
C803A C804A T803A R808 CRTR808 CRT
2
220V VD801~VD804 220V
210V VD806 T804 VD805 T862 2 T862
1 C810 308V T862 1 4NQ821 3 MOS D
VD801~VD804 C805~C808 VD801~VD804VD806 T804 VD805 C810T804 T804
3
300V T862 D
R815 VD801 Q821 4 , C823 C823≥13.5V NQ821 NQ821 NQ821NQ821 R815 C823
: NQ821 4
R815
VD801 2
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220V R815 NQ821 4 NQ821 5 VD801 VD801 VD801
4.
流不足以维持厚膜块NQ821 NQ821
T862 R817 VD828C825 42V VQ821 VD82718V NQ821 4 NQ821 R815
NQ821
5
NQ833 NQ838 NQ821 1 R852 VQ851 R834 NQ833 SE140N NQ838 NQ821 1
NQ833 1 R834 VQ851 E C +B 148V 2
R831 NQ838 2 TV SVHS AV
IPQ 1080I 2.8V XS853 VQ850 b VQ850 VQ851 b
R852 VQ851 e c +B 148V+B 148V
+B148V↑→ NQ833(1)↑→ NQ833(2)↓→ NQ838(2)↓→NQ838 ↑
→NQ838 ↑→U NQ821(1) ↑→NQ821 ↓→+B 148V↓
+B 148V
6
NQ821 NQ821 3 C825
825 C825
1 VD824 VD826 R818 C824 VD825A C825 T862 VD824
VD826 R818 C824 VD825A NQ821 1 NQ821`
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C824 R821A R822 NQ821 1NQ821 1 0.73V NQ821 C825
C824 C824 C825NQ821
7
NQ821 2 R822 R821A NQ821D R822 R821A NQ821 1 1N801
NQ821 4 VD829 NQ821 4VD829T862 7 VD828 C825 42VVD829 NQ821 4 22.5VG
NQ821 NQ821 140G
8
VQ832 VQ833 VQ822 VD836 R832 NQ838 2
VD836 VD836 6.8V
IPQ POWER 4.2V VQ832 VQ833 VQ822
VD836 IPQ 5.0V VQ832 VQ833 VQ822
0.7V VD836 NQ838 2 NQ838NQ821 1 NQ821+B 148V 75V
9
HDTV 60Hz +B60Hz HDTV VQ850 VQ851
60Hz HDTV IPQ 1080I 0VVQ850 VQ851 b R852NQ833 1 +B 148V 157V
10
T862 16 ZP831 VD831 C838 8V5V-2 5V-3
T862 14 ZP832 VD832 C839 25V
T862 11 ZP833 VD833 C836 18VNQ831 12V IPQ N504 9V
T862 10 VD835 C845 148VN501 32V
11
CHD 60Hz HDTV
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50Hz HDTV IPQ HDTV 50Hz
（1 :
CHD R808
R808 220V R808R808
R842A NQ840 VD840 C860 R843A R844 VQ841 VD825NQ831 2 12V R842A NQ840 VQ841 c
C860 R843A R844 C860 C860 R843A R844 0.7V VQ841 NQ840 NQ840
C860 VQ841 b 0.7V 2 VQ841 b 0.7V 0V VQ841 NQ840 R808 220V
2 50Hz HDTV :
50Hz HDTV +B 148V
NQ833 SE140 SE125 VQ850 VQ851 HDTV 60Hz
VQ853 VQ852 HDTV 50Hz
TV AV SVHS +B 148V XS853 1080I
2.8V XS852 1080 50Hz 0V
HDTV 50Hz IPQ 2.8V
XS852 1080 50Hz VQ853 b VQ853 VQ852 R834
VQ852 e c NQ833 1+B 148V 128V
F801
1 NQ821 STR-F6656 3
220V CZ802 C802 VD801 VD804 CHD
R808
2 NQ821 3
NQ821 3
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