3-33
YES
YES
YES
NO
NO
NO
OK
(C1)
When DTV is main
Check input stream existence.
Any problem?
Any problem in selecting
ATSC and DSS?
Any decoding problem?
End
Stream Input Check (IC401, 402,403)
FIG. 06
Terr. : check VSB/ QAM tunner (TU300) block.
DSS: check TPN- II (IC800 ) block.
Check voltage of IC401(1), 402(1),
403(1). ATSC: 3.3V, DSS: 0V
Check signal strength.
If OK, check system clock 27MHz.
ATSC: IC600(9), DSS: IC605(5)
Check HD 2 chip Interrupt request
signal (R418)
FIG. 07
FIG. 07
Interrupt Request Signal on R418
FIG. 06
Input Stream to IC400
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: ......