9
-10
9
Troubleshooting
9
-10 USB Communication Problem
1. Check the Control Line & Signal(CS3, RD, WR, INT)
2. Check the Data Line & Signal
3. Check the Connector(34P)
4. Check the Clock(48MHz)
5. Check the related Circuit and Pattern on I/F PBA
& Main PBA
Host Comm
Failure?
Main PBA I/F
Failure?
N
Y
N
Y
USB Problem
1. Check the Clock(48MHz)
2. Check the D+ whether it is Pull up to V3.3
3. Check the Host whether it works correctly
4. Check the USB Cable whether it is open or short
5. Check the related Circuit and Pattern on I/F PBA
End
Samsung Electro-M
e
chanics
Summary of Contents for SRP-350PG - SRP 350 B/W Direct Thermal...
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 ...