9
-2
9
Troubleshooting
9
-2 System Problem
1. Check the IC M51953B(U10)
2. Check the Reset Pin on Flash Memory
3. Check the related Circuit & Pattern on PCB
1. Check the Clock Xin, Xout on FS741(U8)
2. Check the Frequency(16.00NHz)
3. Check the related Circuit & Pattern on PCB
1. Check the Addr/Data Line Pattern
2. Check the related Circuit & Pattern on PCB
3. Program downLoad again
1. Check the/CS Signal
2. Check the SRAM
3. Check the Addr/Data Pattern
Clock
Signal Ok?
Reset Signal
Ok?
Program
Ok?
SRAM
Ok?
N
Y
N
Y
N
Y
N
Y
1. Check the Main Clock(16.00MHz)
2. Check the Addr/Data Line Pattern
3. Check the Main PBA
CPU
Ok?
N
Y
System
Problem
End
Samsung Electro-M
e
chanics
Summary of Contents for SRP-350U
Page 2: ...About Notes Precaution symbols Samsung Electro Mechanics ...
Page 4: ...Overview of this Receipt Printer Samsung Electro Mechanics ...
Page 7: ...1 Precaution Statements 8 6 0 A 6 8 9 8 4 8 8 1 3 Samsung Electro Mechanics ...
Page 8: ...1 Precaution Statements 1 4 MEMO Samsung Electro Mechanics ...
Page 26: ...2 Product Specifications 2 18 MEMO Samsung Electro Mechanics ...
Page 34: ...3 Installation and Operation 3 8 MEMO Samsung Electro Mechanics ...
Page 63: ...7 Special Circuit Descriptions 7 12 MEMO Samsung Electro Mechanics ...
Page 113: ...12 Block Diagram 12 2 MEMO Samsung Electro Mechanics ...
Page 115: ...13 Wiring Diagram 13 2 MEMO Samsung Electro Mechanics ...
Page 125: ... SAMSUNG ELECTRO MECHANICS Co Ltd January 2004 Printed in Korea ELECTRO MECHANICS ...