Epson FX-870 Service Manual page 147
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Also See for FX-870:
- User manual (184 pages) ,
- Service manual (138 pages) ,
- Product support bulletin (20 pages)
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Principles of Operation
Table 6-7. Repairing the C076 PSB Board Assembly (Continued)
Problem
The voltage of the Q3, ICl, PCl,
t35 V line is below PC2 or ZD51 is
the specified value. bad.
6-32
Checkpoint
Check the voltage waveforms at Q3.
Check the voltage waveforms at Q2.
Replace Q3,
PC2 or
Replace Q2.
Epson FX-870/1170
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