Drawn design check issues – MiTAC 7521 PLUS/N User Manual

Page 178

Advertising
background image

































DRAWN

DESIGN CHECK

ISSUES

R00

DATE

R0A

ECR

05/26/2000

DESCRIPTION OF CHANGE

REV

07/04/2000

1.Relayout base on R00
2.Remove SW3 & SW4 pin 4
3.Remove 74164 blanking circuit
4.Reverse BATT_G# & BATT_R# pin assignment error
5.Change power source from VDD5 to VDD5S for LEDs
6.Remove the reserved circuit

R01

1.Relayout base on R0A
2.Change Batt LED from BRPG1201W to 19-22SRVGC/TR8
3.Change Batt LED RES to fix orange color
4.Change Mail LED from L-1384AD/1GD and

L-1384AD/1YD to L-59BL/1GYW

5.Remove one of VDD5S circuit

08/15/2000

R02

1.Relayout base on R01

09/20/2000

2.Add Q1,Q2 (2N7002) to enhance mail LED brightness





 







   

 !

 "

#$% &

'(

)



#*

 +,+-./0

 +'+-./0

0

0

1+ 23.'0

1+ 3'450

1+60

0

/.,,23+,67

 +'+-./0

 +,+-./0

0

1+ 23.'0

1+ 3'450

1+'0

1+60

1+'0

/.,,23+,67

6'..&+,67

6'..&+,67

6&

6&

6&

6&

6&

8 

8 

8 

8 

6&

6&

6&

6&

6&

6&

6&

6&

8 

6&

8 

3

984:1

 ;984:1



' 

: -

9





'

: -

9





3

; 11; 

; 11+



9



39

; 11; 

; 11+



9



'

99

9





'

99

9





<6

9:42 :



<6

9:42 :



<6

9:42 :4,



'

9



3

984:1

 ;984:1



9

,;6

1

-

= 

5 455; 4: <<

 9;;;



9















9





9















9



<69

9:42 :4,



' 9

9





,;6

1

-



,; ,46/3







 

>4&1

9





<6

<64: 42



, 

.1





 9

:>

8

9





<6

<64: 42



'9



9





' 









' 









'

99

9





D
S



& 

6





D
S



& 

6





VG

SR



; '864'

9





Advertising