Service Manual
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| VCC |
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| VCC3 |
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| L61 | L62 |
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| L63 |
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| BEAD(0805) | BEAD(0805) |
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| BEAD(0805) |
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| C495 | C496 |
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| 4.7U | 4.7U |
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| C497 |
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| 10U |
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| U32 |
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| P[1..5] |
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| TP183 | 15 | D15 | VDD | 25 | Z766 |
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| P5 |
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| D14 |
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| P4 |
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| 13 | AVDD | 31 | Z767 |
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| D13 |
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| P3 |
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| 12 |
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| D12 |
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| P2 |
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| 11 | DVDD | 5 | Z768 |
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| D11 |
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| P1 |
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| 10 | 16 |
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| D10 | DVDD |
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| P11 |
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| 9 | 30 |
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| D9 | DVDD |
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| P10 |
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| 7 | 38 |
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| D8 | DVDD |
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| P9 |
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| P[7..11] |
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| D7 |
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| P8 |
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| 4 |
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| D6 |
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| P7 |
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| C498 | C499 | C500 | C501 | C502 | C503 |
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| D5 |
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| P17 |
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| 2 |
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| D4 |
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| P16 |
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| .1U | .1U | .1U | .1U | .1U | .1U |
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| D3 |
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| P15 |
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| 44 |
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| D2 |
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| P14 |
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| 43 |
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| D1 |
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| P13 |
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| 42 |
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| D0 |
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| Place close to |
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| P[13..17] |
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| 7005 |
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| CSYNC | TP184 |
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| Place close to SIS630S |
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| C | 21 |
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| Z795 |
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| 22 |
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| Z796 |
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| Y |
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| D35 |
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| CVBS 20 | TP196 |
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| AC | AC | R508 | ||||
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| V GCLK | R509 | 0 |
| Z787 | 39 |
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| DA204U | DA204U | |||||||
(7) VGCLK |
| XCLK |
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| 75 1% | ||||||
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| Up to 47MHz |
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| Place close to |
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| 24 | R510 | Place close to | C | A | C |
| A | 7005/6 | |
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| RSET | Z798 | 7005/6 |
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| 360 1% |
| VCC3 |
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| POUT | 37 | TP185 |
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(7) | VBHSYNC | VBHSYNC | R511 | 0 |
| Z788 | 40 | H |
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| Connect to pin 19 ground |
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| VBVSYNC |
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| Z789 | 41 |
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(7) | VBVSYNC | R512 | 0 |
| V |
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| with short/wide trace. |
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| VCC3 | VCC3 | TP186 | 35 | DS/BCO |
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| R513 |
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| R515 |
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| 29 |
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| Z790 | RESETB |
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| 8 |
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| DGND |
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| R516 | R517 | 10K |
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| DGND |
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| 4.7K |
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| DGND |
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| 4.7K |
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| DGND |
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(7,9) | DDC1DATA | DDC1DATA | R518 | 0 |
| Z791 | 26 | SD | GND | 19 | Analog and digital |
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DDC1CLK | R519 | 0 |
| Z792 | 27 | 23 | ground should |
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(7,9) | DDC1CLK |
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| connect to a common |
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| ground plane |
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| 32 | XI | XO/FIN | 33 |
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| CH7005/6 |
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| Z793 | Y7 | Z794 |
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| C511 |
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| C512 |
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| 10P |
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| 10P |
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The two external load capacitors value is eaqual to 2 x crystal internal cap - 12.5pF
| C504 |
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| 47P |
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| Z805 |
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| L64 | L65 | 1.2uH(0805) |
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1 | 2 | 1 | 2 | Z799 | 4 | CRMA | SLD | 5 |
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| C514 | C513 |
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| 1 | GND | SLD | 7 | ||
| 150P | 270P |
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| Z801 |
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| C505 |
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| SVIDEO_CON |
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| 47P |
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| Z804 |
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1 | L66 | L67 |
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2 | 1 | 2 |
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| 1.2uH(0805) | 1.2uH(0805) |
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| C506 | C507 |
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| 150P | 270P |
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ALL COMPONENTS MUST CLOSE TO SVIDEO_CON
Title
Chrontel CH7005
Size | Document Number |
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| Rev |
Custom | A | ||||
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Date: | Monday, March05, 2001 |
| Sheet | 8 of 31 |
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B - 8