13.03.2020, 09:52
Hello guys
I have bought a N4520 recently. There are some problem of it.
When powered up without tape, right reel mortor will rotate a little. when push PLAY, right reel will rotate; when push FF, right reel will rotate; when push REW, left reel will rotate. It seems all status is OK.
When loaded up tape, PLAY is OK, but when FF or REW, TS314 and TS315 will break down immediately. And take down the tape, power up again, left reel will keep rotate Clockwise and right rell rotate Counterclockwise rapidly.
I checked all transistors on Plane 4C, they looked OK
How can I check what is wrong?
Best Regards
jerry
I have bought a N4520 recently. There are some problem of it.
When powered up without tape, right reel mortor will rotate a little. when push PLAY, right reel will rotate; when push FF, right reel will rotate; when push REW, left reel will rotate. It seems all status is OK.
When loaded up tape, PLAY is OK, but when FF or REW, TS314 and TS315 will break down immediately. And take down the tape, power up again, left reel will keep rotate Clockwise and right rell rotate Counterclockwise rapidly.
I checked all transistors on Plane 4C, they looked OK
How can I check what is wrong?
Best Regards
jerry