5-1
UP-960(UC)
UP-960CE(CE)
SECTION 5
TROUBLESHOOTING
5-1. PRINT IS FAULTY
START
Peripheral circuits IC601 and
IC603 on MA-91 board are
defective.
Peripheral circuits IC6 and
IC2 on MA-91 board are
defective.
YES
Is video signal
(AD-IN) available at pin 21
of IC7 on MA-91
board?
NO
Peripheral circuit IC7
on MA-91 board is defetive.
YES
Is video signal
output from data bus of IC7
on MA-91 board?
NO
CN202 line on MA-91 board is
defective.
YES
Is test pattern
properly printed in
test mode?
NO
Pin 16 line of IC601 on MA-91
board is defective.
Is signal
available at pin 14
of IC7 on MA-91
board?
YES
NO
Содержание UP-960
Страница 1: ...VIDEO GRAPHIC PRINTER UP 960 UP 960CE 1st Edition SERVICE MANUAL ...
Страница 6: ......
Страница 20: ......
Страница 26: ......
Страница 46: ......
Страница 74: ......
Страница 75: ...8 1 8 1 UP 960 UC UP 960CE CE SECTION 8 BLOCK DIAGRAMS ...
Страница 92: ......