Epson C82310/11 (Parallel I/F) Servisní příručka stáhnout pdf (Strana 43)

SERVICE MANUAL MASTER FILE

ENGLISH

Rev. A (1997/05/07)

3-12

Table 3-7. Repair of the C229PSB/PSE (continued)

Symptom

Condition Cause Checkpoint Solution

+35V line is

defective.

PC1 is

defective.

Verify the waveform at pin 5 or 7 of

PC1.

Figure 3-12. Waveform of PC1

Replace the

C229PSB/

PSE board.

The printer

dose not

operate at

all.

+5V line is

defective.

Regulator IC

(IC51) is

defective.

Verify the waveform at pin 5 of IC51.

Figure 3-13. OSC of IC51

Replace the

C229PSB/

PSE board.

Verify the waveform at pin 9 or 10 of

IC51.

Figure 3-14. Output of IC51

Replace the

C229PSB/

PSE board.

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 103 104

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