3-22
NO
YES
(A) Power check
2.5V is supplied to L101?
3.3V is supplied to IC104(37), IC105
(37), IC102(1), IC103(1), and IC201(3)?
3.3V is supplied to IC106(14) and
IC108(14)?
YES
Power Supply Check
IC954(3) : 2.5V
NO
NO
Power Supply Check
IC950(2) : 3.3V
Power Supply Check
IC950(2) : 3.3V
NO
YES
(B) Clock check
25MHz clock is output from X101(3)?
Fig. 01
37.5MHz clock is input to IC201(87)?
Fig. 02
8MHz clock is input to IC210(2)?
Fig. 03
YES
Check X100
NO
NO
Check IC101 & IC201
Check IC210
Fig. 01
X101(3) : 25MHz CPU 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: ......