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-36-
TROUBLESHOOTING GUIDE
Appendix
2. NO PICTURE
(A)
(B)
Check The Waveform of TU101 IF PIN
OK : Go To The Figure (B)
NG : Go To The Figure (A)
TU101
TUNER
Z101
SAW FILTER
IF
SCL/SD
33V
5V
CHECK
THE
VOLTAGE
#7,8
I701
CHECK
CLOCK,DATA
#18,19
X701
24.576MHz
CHECK THE
CRYSTAL
5V
3.3V
#22,43,45,63,80
#9,16,86,88
CHECK THE
VOLTAGE
I701
#73
CHECK THE
HOUT
#83,84,85
CHECK THE
RGB OUT
#22,43,45,63,80
5V
3.3V
#9,16,86,88
CHECK THE
VOLTAGE
T402
FBT
D406
D405
CHECK THE
190V LINE
CHECK THE
HEATER
VOLTAGE
Z101
SAW FILTER
Summary of Contents for DTH-211F
Page 7: ... 6 CIRCUIT BLOCK DIAGRAM ...
Page 15: ... 14 IC DESCRIPTION 1 1 UOC III BLOCK DIAGRAM 1 UOC III SERIES ...
Page 16: ... 15 IC DESCRIPTION 1 2 UOC III FEATURES ...
Page 17: ... 16 IC DESCRIPTION ...
Page 18: ... 17 IC DESCRIPTION ...
Page 19: ... 18 IC DESCRIPTION ...
Page 27: ... 26 IC DESCRIPTION 2 ...
Page 28: ... 27 IC DESCRIPTION ...
Page 29: ... 28 IC DESCRIPTION 3 ...
Page 30: ... 29 IC DESCRIPTION 4 ...
Page 31: ... 30 IC DESCRIPTION ...
Page 35: ... 34 WAVEFORMS Appendix 7 I701 X TAL 8 I301 PIN4 V OUT 9 I901 PIN R IN 10 I901 PIN R OUT ...
Page 36: ... 35 1 NO POWER TROUBLESHOOTING GUIDE Appendix ...
Page 58: ... 57 ...
Page 59: ... 58 ...
Page 60: ... 59 ...
Page 61: ... 60 ...
Page 62: ... 61 ...
Page 63: ... 62 ...