C – 9
Figure C-3-4
A
Yes Are ALE, PSEN, RD, WR, signals as specified in Figure C-3-3?
No
Replace the Q3.
Yes Are (T1) SELECT and (INTO) BUSY signals low level?
No
Check Q501 on the SDDV board.
Yes Are +9V and -9V input to Q1?
No
Replace defective component in +9/–9 volt control circuit.
Yes Is pin 1 SSD signal of Q3 High level?
No
Replace the Q3.
Yes Is pin 11 SSD of Q1 low level?
No
Replace the Q1 or the CN1 connector.
Yes Is the RxD of Q3 as specified in Figure C-3-4?
No
Replace the Q2.
Yes Replace the Q3.
542ns
180ns
271ns
542ns
5V
0V
5V
0V
5V
0V
ALE
PSEN
RD/WR
Figure C-3-3
ST bit
SP bit
5V
0V
5V
0V
RxD
SSD
Содержание MICROLINE 320
Страница 7: ...1 2 1 2 Options 1 Cut sheet feeder unit CSF Attachment assy 2 Pull tractor assy Single bin CSF...
Страница 8: ...1 3 3 Bottom push tractor unit 5 Serial I F RS 232C 4 Roll paper stand Narrow only...
Страница 36: ...2 28 Figure 2 6 Ribbon cartridge Drive gear Ink reservoir...
Страница 47: ...2 39 Figure 2 14 Change lever Release cam Platen Front release gear arm TOP BOTTOM REAR Pressure rollers...
Страница 49: ...2 41 Paper end sensor Sensor lever Shaded portion A B Paper end lever Bottom paper end lever Figure 2 15 C...
Страница 51: ...2 43 Platen Figure 2 16 Ribbon protector Printhead Carriage frame assembly...
Страница 90: ...5 2 Carriage shaft...
Страница 98: ...5 10 9 Carriage Assy NK2 10 SUS Bearing part of the guide roller EM 30L B...
Страница 119: ...6 21 Replace RS232C board Remedied No Yes End Replace driver board...
Страница 121: ...B 1 B SPARE PARTS LIST...
Страница 122: ...B 2 Figure 11 1 Upper Cover Assy 1 2 3 4...
Страница 124: ...B 4 Figure 11 2 Printer General Assy 6 9 8 2 7 4 5 3 10 1...
Страница 129: ...B 9 Figure 11 4 Carriage Assy 12 9 8 6 14 11 10 1 13 7 5 4 3...
Страница 131: ...B 11 Figure 11 5 Option Spare Parts 1 2 3 4 5 6 7 Pull Tractor Bottom Tractor I F Board...
Страница 145: ...Microline 320 321 Turbo Service Manual Part Number 59273701 Printed in the USA...