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- Newsgroups: comp.sys.3b1
- Path: sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!mdsol1!alembic!ceilidh!hijo-2!dnichols
- From: dnichols@ceilidh.beartrack.com (Don Nichols (DoN.))
- Subject: Re: Video Connector
- Message-ID: <1992Jul29.234714.8143@ceilidh.beartrack.com>
- Organization: D and D Data, Vienna Virginia
- References: <iZ4eoB3w164w@lorc.UUCP>
- Date: Wed, 29 Jul 1992 23:47:14 GMT
- Lines: 41
-
- In article <iZ4eoB3w164w@lorc.UUCP> lowen@lorc.UUCP (Lamar Owen) writes:
- >I have a sick 3B1. Symptom: no video. I can boot the machine, hook a
- >terminal up to a serial port (two combo cards in this machine), and get a
- >login:.
- >
- >So, my question is: does anyone have the pinout for the motherboard video
- >connector?
-
- Here's what I can get from the Technical Reference Manual schematics:
-
- pin function
- ========================================
- 01 Vertical sync
- 02 GROUND
- 03 Horizontal sync
- 04 GROUND
- 05 Video out
- 06 GROUND
- 07 +12V
- 08 GROUND
- 09 +12V
- 10 GROUND
-
- I understand that the timing is somewhat different so you may have
- problems losing the left edge of your screen with a stock monitor. I
- haven't tried this myself, so I don't know. There were some reports of an
- experiment to get a paper-white monitor working with the system. I don't
- remember any final solution to the timing problem being posted.
-
- Have you checked the section in the FAQ list on the capacitor
- failure which usually takes out the monitor? The early symptoms usually are
- one edge of the screen shrinking. (So far, I've been lucky enough to not
- have seen this problem.)
-
- Good Luck
- DoN.
- --
- Donald Nichols (DoN.) | Voice (Days): (703) 704-2280 (Eves): (703) 938-4564
- D&D Data | Email: <dnichols@ceilidh.beartrack.com>
- I said it - no one else | <dnichols@ceilidh.aes.com>
- --- Black Holes are where God is dividing by zero ---
-