Epson Stylus SCAN 2000 Service Manual page 78

EPSON Stylus Scan 2000
Symptoms Condition
Carriage motor does not
The carriage does not operate
operate at all or it occurs a
normally.
abnormal noise.
Printing is abnormal. Nothing prints.
Troubleshooting
Table 3-13. Troubleshooting the MAIN Board (continued) (TBD)
Cause Check Point
Check the waveform at 27,
16 pin of IC11.
IC2 is dead.
Check the waveform at 6-9 pin
of IC11.
IC11 is defective.
Trapezoidal waveform does Check the trapezoidal waveform at 3-pin of Q2 or Q3 on B101
not output. MAIN board.
Check the clock signal of
trapezoidal from IC2. (at
174 pin of IC2)
IC2 is dead.
Troubleshooting the MAIN Board
Solution
Title: maic14in.eps
Creator: Micrografx Graphics Engine
CreationDate: Fri Nov 01 12:01:06 1996
Replace IC2.
Title: ma14out.eps
Creator: Micrografx Graphics Engine
CreationDate: Fri Nov 01 12:06:59 1996
Replace IC11.
Replace IC14, Q2, or Q3.
Title: mahead.eps
Creator: Micrografx Graphics Engine
CreationDate: Fri Nov 01 12:20:22 1996
Replace IC2.
Revision A
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