![background image](http://html1.mh-extra.com/html/okidata/ml393c-plus/ml393c-plus_service-manual_729925202.webp)
Page: 133
Service Guide ML393/ML393CPlus
Chapter 4 Failure Analysis
Modifications to Q6, Main Control Board
NOTE:
This information is also provided in Technical Service Bulletin 3213.
The main control board has been modified. EPROM socket location Q6 accepts four additional pins.
Either a 28 pin EPROM or a 32 pin Masked ROM may be installed with no changes and full compatibility.
No jumper changes are necessary.
When installing a 28 pin EPROM, the four unused pins (two on each side) are on the left side of the
socket. Refer to the diagram.
The 32 pin Masked ROM uses all 32 pins on the socket.
Содержание ML393C Plus
Страница 74: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Страница 125: ...Copyright 1997 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business...
Страница 126: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Страница 278: ...Partner Exchange BPX for any updates to this material http bpx okidata com...