Vous vous épilez le maillot et collectionnez les bornes d'arcade avec des hommes musclés dessus ? Alors soyez les bienvenus sur Gamoover ! [/move]
When I repaired several drive boards for a friend in February (see below) ;-), one behaved similarly.
If IC28 is working as you write, then check the activity IC28 on pins 1 and 19, if it is not there,
then if I remember correctly, the cause is IC18 or then IC2 and IC5.
I have repaired many of these boards and there has never been a faulty optocouplers or output drivers TD62384 and ADC M62353.
Note, the optocouplers inputs are powered from the CN1 and CN3 connectors.
If IC28 is working as you write, then check the activity IC28 on pins 1 and 19, if it is not there,
then if I remember correctly, the cause is IC18 or then IC2 and IC5.
I have repaired many of these boards and there has never been a faulty optocouplers or output drivers TD62384 and ADC M62353.
Note, the optocouplers inputs are powered from the CN1 and CN3 connectors.
