3-34
NO
NO
NO
YES
YES
(C2)
When DTV is main
Check tuner output composite signal
(C620)
FIG. 08
Check NTSC decoder.
Check digital output pin short in IC606
pin 12~ 19, 23~ 26, 30~ 33.
Is there any quantize noise ?
Check tuner block(TU300)
power check; L602 5V
Analog input: IC606 (44)
Reference clock oscillation : X601
FIG. 09
Pixel clock: 13.5MHz continuous
Clock in IC606 (28).
FIG. 10
Hsync out: 15.7KHz negative pulse in
IC606 (36).
FIG. 11
Vsync out: 59.94Hz negative pulse in
IC606 (35).
FIG. 12 top
Field ID : 29.97Hz pulse in IC606 (34).
FIG. 12 bottom
IIC: IC606 (10(SCL), 11(SDA))
FIG. 08
CVBS signal from TU300
FIG. 11
NTSC Decoder Hsync output
FIG. 12
NTSC Decoder Vsync output(top), Field ID(bottom)
FIG. 09
X601 Reference clock
FIG. 10
NTSC Decoder Pixel Clock
Содержание LSS-3200A
Страница 17: ...3 8 Fig 01 Fig 02 Fig 03 ...
Страница 32: ...3 23 Fig 02 IC201 87 37 5MHz PERI Clock Fig 03 IC210 2 8MHz MICOM Clock ...
Страница 49: ...3 40 FIG 05 IC901 2 Modem Chip Clock 4 9152MHz FIG 06 IC901 3 Modem PLL Out Clock 9 8MHz ...
Страница 63: ...3 61 3 62 2 CPU PPC405CR CIRCUIT DIAGRAM ...
Страница 64: ...3 63 3 64 3 CPU PERI RF REMOTE VCR CTRL CIRCUIT DIAGRAM ...
Страница 65: ...3 65 3 66 4 FRONTEND CIRCUIT DIAGRAM ...
Страница 66: ...3 67 3 68 5 HD2 SDRAM CIRCUIT DIAGRAM ...
Страница 67: ...3 69 3 70 6 DIRECTV HD STB CIRCUIT DIAGRAM ...
Страница 68: ...3 71 3 72 7 VDP I F DISPLAY OUTPUT CIRCUIT DIAGRAM ...
Страница 69: ...3 73 3 74 8 NTSC AUDIO PROCESSOR CIRCUIT DIAGRAM ...
Страница 70: ...3 75 3 76 9 DIRECTV TP DEMUX CAS I F CIRCUIT DIAGRAM ...
Страница 71: ...3 77 3 78 10 2400 BPS ISO MODEM CIRCUIT DIAGRAM ...
Страница 72: ...3 79 3 80 11 POWER REGULATION CIRCUIT DIAGRAM ...
Страница 73: ...3 81 3 82 12 CAM I F CIRCUIT DIAGRAM ...
Страница 74: ...3 83 3 84 13 FRONT 2R VFD KEY SCAN CIRCUIT DIAGRAM ...
Страница 75: ...3 85 3 86 14 FRONT POWER KEY CIRCUIT DIAGRAM ...
Страница 76: ...3 87 3 88 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM LOCATION GUIDE ...
Страница 77: ...3 89 3 90 2 DIGITAL MAIN P C BOARD TOP ...
Страница 78: ...3 91 3 92 3 CAM P C BOAR BOTTOM 4 CAM P C BOAR TOP 5 POWER P C BOARD LOCATION GUIDE LOCATION GUIDE ...
Страница 79: ...3 93 3 94 6 TIMER P C BOARD LOCATION GUIDE LOCATION GUIDE 7 KEY P C BOARD ...
Страница 103: ......