Epson 2070 - LQ B/W Dot-matrix Printer Service Manual page 133
Terminal printer
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Also See for 2070 - LQ B/W Dot-matrix Printer:
- Technical brief (7 pages) ,
- User manual (168 pages) ,
- Product support bulletin (7 pages)
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LQ-2070 Service Manual
Q1 is dead.
^
PC1 is dead.
Rev.A
Check that the resistance between the
source and drain is infinite.
Check the voltage waveform between
the source and drain of the Q1.
Check the voltage waveform between
pins 3 and 4 of the PC1.
Troubleshooting
Replace
the Q1.
Replace
PC1.
5-11
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Troubleshooting
