VG8235 and V9958 trouble | MSX Resource Center (ページ 2/2)

Guardian (3571)

03-09-2020, 14:27

You can put a 100nF ceramic capacitor on top of the resistor that is connected to the CSYNC output of the VDP. That's how we resolved the problems on YIS503 and YIS805 after upgrading them to MSX2+.

By gdx

Enlighted (6114)

03-09-2020, 15:08

Congratulations!

It is best to brush the pins of components that have been stored for a long time before soldering them.

By galatronic

Supporter (11)

05-09-2020, 09:23

Alexey wrote:

You can put a 100nF ceramic capacitor on top of the resistor that is connected to the CSYNC output of the VDP. That's how we resolved the problems on YIS503 and YIS805 after upgrading them to MSX2+.

Do you mean to put in parallel of the resistor R40 as seen on the schematic ?

By galatronic

Supporter (11)

05-09-2020, 11:23

Alexey wrote:

You can put a 100nF ceramic capacitor on top of the resistor that is connected to the CSYNC output of the VDP. That's how we resolved the problems on YIS503 and YIS805 after upgrading them to MSX2+.

GREAT!!! IT IS PERFECT NOW!!! THANK YOU VERY MUCH