3-37
8. TUNER TROUBLESHOOTING
Tuner
problem
Yes
TU100(9-pin)
+30V Input OK
No
J114 Connector
Power Cable
Check
TU100(1,8,12-pin)
+5V Input OK
TU100(23-pin)
+3.3V Input OK
TU100(21-pin)
+1.8V Input OK
No
Yes
No
Yes
IC137(3-pin)
+1.8V output OK
No
No
Yes
IC137(1-pin)
+3.3V input OK
No
Yes
Change IC137
IC151(6,7-pin)
I2C Bus OK
IC151(8-pin)
+5 input OK
No
No
Yes
J114 Connector
Power Cable
Check
Yes
Yes
IC111(5-pin
+5 input OK
IC111(1-pin)
12MHz input clock
OK
Yes
IC113(20-pin)
+5 input OK
Yes
No
No
Check U101
12MHz Clock out
No
Yes
System Part
Check
IC148(MiCOM)
Check OK
Check
Gemster Board
Check IC113
Chang IC151
Yes
No
Check IC148
No
Check Gemstar Board
Tuner part OK
Yes
TU100(Tuner )
Voltage check
Содержание LST-3410A
Страница 30: ...3 18 ...
Страница 53: ......
Страница 57: ......
Страница 63: ......
Страница 64: ...3 41 3 42 WAVEFORMS 1 SYSTEM PART 1 1 1 2 2 System Reset System Main Clock 33 333MHz ...
Страница 67: ...3 47 3 48 4 VIDEO PART 2 2 1 4 3 HD 2 VDP Clock 27MHz VCXO Clock HD 2 NTSC Clock HD 2 PWM Signal ...
Страница 70: ...3 53 3 54 7 VIDEO IN DVI OUT 3 1 4 2 DVI Clock Digital Video H Sync Out VPX3226F X Tal Clock 656 Clock ...
Страница 71: ...3 55 3 56 8 PVR PART 1 2 1 Variable Audio_L Out SPDIF Out Signal ...
Страница 72: ...3 57 3 58 9 PVR PART 2 1 2 BCM7040 Memory Clock BCM7040 Clock ...
Страница 74: ...3 61 3 62 11 CVBS OUT 4 1 3 2 DVI Clock Digital Video H Sync Out VPX3226F X Tal Clock 656 Clock ...
Страница 75: ...3 63 3 64 12 1394 PART 1 2 1394 TP Out Clock 1394 X Tal Clock ...
Страница 76: ...3 65 3 66 13 GEMSTAR PART 3 1 2 Gemstar Memory Clock to MiCOM Gemstar Memory Clock Gemstar X Tal Clock ...
Страница 77: ......
Страница 79: ...3 72 3 73 2 CPU CIRCUIT DIAGRAM 1 SMEM_DATA S_MEM ADR PER_DATA PER_ADDR CPU CLOCK ...
Страница 80: ...3 74 3 75 3 BOOT STRAPPING CLOCK CPLD CIRCUIT DIAGRAM PER DATA PER ADR TO CPU P8 P9 P4 ...
Страница 81: ...3 76 3 77 4 SYSTEM MEMORY FLASH I2 C COT CIRCUIT DIAGRAM PER ADDR CLOCK P3 S MEM DATA S MEM ADDR PER DATA ...
Страница 82: ...3 78 3 79 5 HD II CIRCUIT DIAGRAM PES CLOCK PER ADDR PER DATA Valid TP DATA CLK ...
Страница 83: ...6 HD2 MEMORY PLL CIRCUIT DIAGRAM 2 PER ADDR VSB PDR TP DATA CLK VALID TP DATA CLK VALID 3 80 3 81 ...
Страница 84: ...3 82 3 83 7 AUDIO PROCESSOR SPDIF OUT CIRCUIT DIAGRAM ...
Страница 85: ...3 84 3 85 8 NTSC DECODER DVI OUTPUT CIRCUIT DIAGRAM ...
Страница 86: ...3 86 3 87 9 TPN II MEMORY CIRCUIT DIAGRAM ...
Страница 87: ...3 88 3 89 10 MPEG ENCODER MEMORY CIRCUIT DIAGRAM ...
Страница 88: ...3 90 3 91 11 PCI2IDE CONTROLLER CIRCUIT DIAGRAM ...
Страница 89: ...3 92 3 93 12 ATSC QAM NTSC NIM TUNER CIRCUIT DIAGRAM ...
Страница 90: ...3 94 3 95 13 AUDIO VIDEO OUT CIRCUIT DIAGRAM ...
Страница 91: ...3 96 3 97 14 1394 CIRCUIT DIAGRAM ...
Страница 92: ...3 98 3 99 15 MICOM POWER I F FRONT I F CIRCUIT DIAGRAM ...
Страница 93: ...3 100 3 101 16 FRONT CIRCUIT DIAGRAM ...
Страница 94: ...3 102 3 103 17 GEMSTAR CONTROLLER CIRCUIT DIAGRAM ...
Страница 95: ...3 104 3 105 18 GEMSTAR MEMORY CIRCUIT DIAGRAM ...
Страница 96: ...3 106 3 107 19 GEMSTAR MICOM I F CIRCUIT DIAGRAM ...
Страница 97: ...3 108 3 109 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN PRINTED CIRCUIT DIAGRAMS TOP ...
Страница 98: ...3 110 3 111 2 DIGITAL MAIN PRINTED CIRCUIT DIAGRAMS BOTTOM LOCATION GUIDE ...
Страница 99: ...3 112 3 113 3 SMPS POWER PRINTED CIRCUIT DIAGRAM LOCATION GUIDE ...
Страница 100: ...3 114 3 115 5 GEMSTAR PRINTED CIRCUIT DIAGRAM BOTTOM 4 GEMSTAR PRINTED CIRCUIT DIAGRAM TOP ...
Страница 101: ...3 116 3 117 6 KEY PRINTED CIRCUIT DIAGRAM 7 TIMER PRINTED CIRCUIT DIAGRAM LOCATION GUIDE ...
Страница 135: ......