Circuit Diagram
TDA7496(U201):
The TDA7496L is a stereo 2W+2W class AB power amplifier assembled in the
@ Powerdip 14+3+3 package, specially designed for high quality sound, TV and Monitor
applications. Features of the TDA7496L include linear volume control, Stand-by and mute
functions. The function of each pin and the inside circuit diagram are as follows
:
14
ViewSonic Corporation
Confidential - Do Not Copy
VA502mb-1
P3.0
P3.7
P1.0
P1.7
ALU
Port 0
Latch
Port 1
Latch
Timer
1
Timer
0
Timer
2
Port
1
UART
XTAL1
PSEN
ALE
Vss
VCC
RST
XTAL2
Oscillator
Interrupt
PSW
Instruction
Decoder
&
Sequencer
Reset Block
Bus & Clock
Controller
SFR RAM
Address
Power control
256+1K bytes
RAM & SFR
Stack
Pointer
B
Addr. Reg.
Incrementor
PC
DPTR
Temp Reg.
T2
T1
ACC
Port 3
Latch
Port 4
Latch
Port
3
Port 2
Latch
P4.0
P4.7
Port
4
Port
0
Port
2
P2.0
P2.7
P0.0
P0.7
64KB
Flash E ROM
4KB
Flash EROM
Содержание VA502mb-1
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Страница 16: ...PIN Descriptions 13 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 18: ...Block Diagram PIN Function 15 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 38: ...5 7 Packing Procedure 35 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 40: ...Picture 3 Picture4 Picture 5 Picture 6 Picture 7 37 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 41: ...Picture 8 Picture 9 Picture 10 Picture11 38 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 42: ...39 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 6 Troubleshooting Flow Chart...
Страница 43: ...7 Block Diagram 40 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 53: ...9 PCB Layout Diagrams MAIN BOARD 50 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 54: ...POWER BOARD 51 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 56: ...53 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 57: ...AUDIO BOARD 54 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 58: ...KEY BOARD 55 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 59: ...10 Exploded Diagram and Exploded Parts List 56 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 61: ...58 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 Packing for Shipping...