Defective Motor Operation - Star Micronics LC-8211 Technical Manual

4-3. Defective Motor Operation

START
LF-CMN
signal is normal?
*4
YES
LF-ø1,
ø2, ø3, ø4 are
normal? *5
YES
Replace
LF motor
Check operation
END
*4 See (7) waveform in item 7 of Chapter 7.
*5 See (8) waveform in item 7 of Chapter 7.
*6 See (6) waveform in item 7 of Chapter 7.
Paper Feed Motor
NO
Check and replace
1) TA7
2) TR7
3) Gate array
NO
Check and replace
1) TA7
2) CPU
GENERAL SPECIFICATIONS
START
CR-ø1,
ø2, ø3, ø4 are
normal? *6
YES
Replace
CR motor
Check operation
END
– 65 –
Carriage Motor
NO
Check and replace
1) TA 8
2) Gate array