Microtek ScanMaker 3880 - Repair Flow and Troubleshooting; Troubleshooting Diagnostic Flow

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REPAIR FLOW OF SCANMAKER 3880
1. Power Adapter NG
2. Main Board NG
3. Button Board NG
4. 9 Pin button cable NG
1. Reflective Lamp NG
2. AC-Inverter board NG
3. CCD Board NG
4. 19 Pin CCD flat cable NG
1. Step Motor NG
2. Main Board NG
3. Base Lock NG
4. Power Adapter NG
1. Button Board NG
2. 9 Pin button cable NG
3. Base Lock NG
4. Timing Belt NG
1. Main Board NG
2. Wrong scanner driver
3. USB Cable NG
4. Carriage Assembly NG
5. 19 Pin CCD flat cable NG.
6. Power Adapter NG.
Scanner power up
( LED light off )
Fail
Reflective Lamp light up
Fail
Motor run
Carriage unit travel to go
home sensor position
Fail
Fail
Fail
Scanner link with compu
ter
host via USB2.0 interface
( LED go blinking )