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- 22 –
ViewSonic Corporation
Confidential - Do Not Copy
VX712
NC
33 27
No connection
NC
34 28
No connection
NC
35 29
No connection
P1.7
36
30
General purpose I/O (Standard 8051/CMOS)
P1.6
37
31
General purpose I/O (Standard 8051/CMOS)
P1.5
38
32
General purpose I/O (Standard 8051/CMOS)
P1.4
39
33
General purpose I/O (Standard 8051/CMOS)
P1.3
40
34
General purpose I/O (Standard 8051/CMOS)
P1.2
41
35
General purpose I/O (Standard 8051/CMOS)
P1.1
42
36
General purpose I/O (Standard 8051/CMOS)
P1.0/ET2
43
37
General purpose I/O/External Counter/Timer2
(Standard 8051/CMOS)
VCC
44
38
3.3V power
TDA7496L(U201)
:
The TDA7496L is a stereo 2W+2W class AB power amplifier
assembled in the @ Powerdip, driving speakers as low as 8 . The function of
each pin and the inside circuit diagram are as follows
:
Block Diagram
Summary of Contents for VX712
Page 20: ... 20 ViewSonic Corporation Confidential Do Not Copy VX712 ...
Page 45: ... 45 ViewSonic Corporation Confidential Do Not Copy VX712 ...
Page 48: ... 48 ViewSonic Corporation Confidential Do Not Copy VX712 5 7 Packing For Shipping ...
Page 50: ... 50 ViewSonic Corporation Confidential Do Not Copy VX712 6 Troubleshooting Flow Chart ...
Page 81: ... 81 ViewSonic Corporation Confidential Do Not Copy VX712 12 6 Audio ...
Page 84: ... 84 ViewSonic Corporation Confidential Do Not Copy VX712 13 5 POWER PCB TOP VIEW ...
Page 85: ... 85 ViewSonic Corporation Confidential Do Not Copy VX712 13 6 POWER PCB BUTTON VIEW ...
Page 86: ... 86 ViewSonic Corporation Confidential Do Not Copy VX712 13 7 AUDIO PCB BUTTON VIEW ...