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| A |
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| B |
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| C |
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| D |
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| E |
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4
3
2
1
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| 3.3V |
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| U17 |
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| C128 |
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| 0.1U |
| |
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POWERON |
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| 7 | OE | VDD | 2 | 25V Z |
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| 6 | S0 |
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| R86 | çèÓئ |
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| 4 |
| 5 | RDCK | DCKEXT | |
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| S1 | CLK | ||||
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Y3 | U17_X1 |
| 1 | X1 |
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| 22 |
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| U17_X2 |
| 8 |
| 3 |
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| |
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| X2 | GND |
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16.257MHZ |
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| ICS501 |
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| R90 820K |
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| GND |
| ||
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| |
| C127 | C124 |
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| 10P | 10P |
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| 50V J | 50V J |
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| VDD |
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| VDD |
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| 2 |
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| R85 |
| D7 |
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| 0 |
| 1N4148 |
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| 1 | C123 |
| U19 |
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| |
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| 50V Z | |
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| |
1 | NC | VDD | 5 |
| 4.7U |
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| |||
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2VSS
3 | NC | RES | 4 | RESET_I R88 | 270 | RESETY |
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V6300L | R89 | |
510 | ||
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| VDD |
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| RA3 | 1K CA2 10U Z |
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| 2 |
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| RA1 |
|
| WATCHDOG1 |
| 2N3906 |
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| ||
WATCHDOG |
| UR1 |
| 1K |
| |||
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| QR1 |
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| |
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| |
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| 3 |
| 1 | 8 |
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| 2 | 7 | RA2 | 100K |
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| 3 | 6 | ||
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| 4 | 5 |
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| 10K |
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| CA1 |
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| 3.3V | RA7 |
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| |
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| NE555 | 0.1U M |
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| |
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RESETX |
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| 2 |
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| 2N3904 |
| 1 RA4 | 1K |
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| QR2 |
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| |
|
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| 3 |
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|
|
Y4
16.257MHZ
RESETX
RESETY
3.3V
U18_X1
U18_X2
R91 820K
C125
10P
50V J
|
| UR2 |
|
|
1 |
|
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| 5 |
| A | VCC | ||
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|
|
2B
3GND Y 4 74AHC1G32
RA5 0
| U18 |
| |
7 |
|
| |
OE | VDD | ||
6 | |||
S0 |
| ||
4 |
| ||
S1 | CLK | ||
1 | |||
X1 |
| ||
8 |
| ||
X2 | GND | ||
| |||
|
|
| |
| ICS501 |
|
C126
10P
50V J
3.3V
RESET
3.3V
|
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| 3.3V | |
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| C122 |
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| |
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| 0.1U |
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3.3V |
| 25V Z |
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| 4 | |
| ||||||||
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2
R87ïíðÓئñìïÓئ
5 RMCK 
MCKEXT
322
3
2
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Project Code |
| Model Name | OEM/ODM Model Name | ||||||||||
| 99.J3477.001 |
|
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| DX660 |
| NA |
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| 1 | ||||||
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Title |
| MAIN BD |
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| |||
Size | PCB P/N |
|
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| PCB Rev. | Document Number |
| Rev. |
| ||||
<Size> | 48.J3402.S03 |
| S03 |
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| 1 |
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| |||||
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Date: | Tuesday, May 21, 2002 |
|
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| Sheet | 8 | of | 12 |
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| ||
| Prepared By |
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| Reviewed By |
| Approved By |
| |||||
| ANGEL HU |
|
| BILL WJ CHANG |
| T.S.WU | |||||||
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| A |
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| B |
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| C |
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| D |
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| E |
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