HT-DV30H
7 – 3
3. Both Video and Audio do not operate normally
43
42
58
57
252
252
IC1
1
2
3
4
IC1
5
IC1
5
The RF waveform is normal and the time is displayed normally, but no sound is produced. Or the sound has dropouts.
1. Insert disc into DISC loader.
Yes
2. When playback starts does the disc initialise ?
No
Repeat steps as Focus Errror system check occurred.
Yes
3. Is the RF signal level output from IC1 pin no 252 normal?
( Waveform drawing Figure 3 for CD and Figure 2 for DVD )
No
Is the objective lens of optical pickups clean ?
Yes
Yes
4. Replace Servo PWB.
No
Replace optical pickup mechanism unit.
Yes
5. Does the supply shows as +1.8V / + 3.3 V / + 5 V / + 12V?
No
Check supply ( IC3 Pin No. , +1.8V / CNP5 Pin 1, +3.3V /
CNP5 Pin 3, +5V / CNP5, +12V
Yes
6. Is Reset function OK?
No
Check CNP4 pin no 18 .
Yes
7. Is clock frequency shows 27MHz?
No
Check clock circuit ( XL1 , C86 , C92 )
Yes
8. Is the SDRAM is normal?
No
Check IC4 pin no 38 .
Yes
9. Is the DSP is normal?
No
Check IC1 Data Bus .
Yes
10. Is the Audio out is normal?
No
Check Audio out circuit ( CNP13A Pin No.1 and 3 )
Yes
11. Is the Video out is normal?
No
Check Video out circuit ( IC1 Pin No.211, 218, 219 and 221 )
Figure 2
Figure 1
Figure 3
2
9
IC6
6
7
Figure 4
Содержание HT-DV30H
Страница 11: ...HT DV30H MEMO ...
Страница 12: ...HT DV30H 4 1 CHAPTER 4 DIAGRAM 1 Main Block Diagrams TP1 Figure 4 1 MAIN BLOCK DIAGRAM 1 2 ...
Страница 13: ...HT DV30H 4 2 IC701 IXA161AW00 PR PB Y S01 Figure 4 2 MAIN BLOCK DIAGRAM 2 2 ...
Страница 16: ...HT DV30H 4 5 3 Power Block Diagrams AC SUPPLY 220 240V 50Hz Figure 4 5 POWER BLOCK DIAGRAM 1 2 ...
Страница 17: ...HT DV30H 4 6 DZ957 Q909 Figure 4 6 POWER BLOCK DIAGRAM 2 2 ...
Страница 28: ...HT DV30H 5 11 MEMO ...
Страница 32: ...HT DV30H 6 4 Figure 6 3 MAIN SCHEMATIC DIAGRAM 3 8 13 14 15 16 17 18 ...
Страница 33: ...HT DV30H 6 5 Figure 6 4 MAIN SCHEMATIC DIAGRAM 4 8 MIC_IN A B C D E F G H 1 2 3 4 5 6 ...
Страница 34: ...HT DV30H 6 6 Figure 6 5 MAIN SCHEMATIC DIAGRAM 5 8 JP826 7 8 9 10 11 12 ...
Страница 36: ...HT DV30H 6 8 Figure 6 7 MAIN SCHEMATIC DIAGRAM 7 8 AUDIO SIGNAL A B C D E F G H 1 2 3 4 5 6 ...
Страница 37: ...HT DV30H 6 9 Figure 6 8 MAIN SCHEMATIC DIAGRAM 8 8 SPEAKER TERMINAL 7 8 9 10 11 12 ...
Страница 38: ...HT DV30H 6 10 Figure 6 9 USB SCHEMATIC DIAGRAM BI 706 A B C D E F G H 1 2 3 4 5 6 ...
Страница 39: ...HT DV30H 6 11 MEMO ...
Страница 44: ...HT DV30H 6 16 Figure 6 12 DISPLAY SCHEMATIC DIAGRAM 1 2 TO MAIN PWB A TO SMPS PWB A B C D E F G H 1 2 3 4 5 6 ...
Страница 45: ...HT DV30H 6 17 Figure 6 13 DISPLAY SCHEMATIC DIAGRAM 2 2 7 8 9 10 11 12 ...
Страница 47: ...HT DV30H 6 19 MEMO ...
Страница 48: ...HT DV30H 6 20 Figure 6 15 DVD SCHEMATIC DIAGRAM 1 8 TO DVD MECHA MOTOR A B C D E F G H 1 2 3 4 5 6 ...
Страница 49: ...HT DV30H 6 21 Figure 6 16 DVD SCHEMATIC DIAGRAM 2 8 7 8 9 10 11 12 ...
Страница 52: ...HT DV30H 6 24 Figure 6 19 DVD SCHEMATIC DIAGRAM 5 8 7 8 9 10 11 12 ...
Страница 54: ...HT DV30H 6 26 Figure 6 21 DVD SCHEMATIC DIAGRAM 7 8 CD SIGNAL A B C D E F G H 1 2 3 4 5 6 ...
Страница 55: ...HT DV30H 6 27 Figure 6 22 DVD SCHEMATIC DIAGRAM 8 8 TO MAIN PWB A TO DIGITAL IN PWB 5 7 8 9 10 11 12 ...
Страница 61: ...HT DV30H 6 33 Figure 6 28 WIRING SIDE OF MAIN PWB BOTTOM VIEW 2 2 7 8 9 10 11 12 ...
Страница 65: ...HT DV30H 6 37 Figure 6 32a WIRING SIDE OF POWER PWB BOTTOM VIEW 2 2 7 8 9 10 11 12 ...
Страница 69: ...HT DV30H 6 41 Figure 6 32b WIRING SIDE OF POWER PWB BOTTOM VIEW 2 2 7 8 9 10 11 12 ...
Страница 73: ...HT DV30H 6 45 Figure 6 36 WIRING SIDE OF DISPLAY PWB BOTTOM VIEW 2 2 7 8 9 10 11 12 ...
Страница 88: ...HT DV30H 8 5 MEMO ...
Страница 107: ...HT DV30H 18 MEMO ...
