jay@retix.retix.com (Jay Logue) (05/30/91)
I have an old NEC Multisync monitor which appears to support both digital and analog inputs via a single connector. (The signal type is selectable using a switch located on the back). However, as I don't have any docs, I don't know the configuration of the pins on the connector when it is in analog mode. Can anyone send me this information? I imagine its readily available in the user documentation that came with the monitor. Thanks in advance! Jay Logue =============================================================================== INGREDIENTS: Jay Logue's personal opinions, cute signature, physical/electronic addresses, and one or more of the following used as a filler: assorted quotations, extraneous punctuation, white-space. CONTAINS NO OFFICIAL EMPLOYER OPINIONS OR POSITIONS. Not to be taken internally. If accidentally injested, flush with generous quantities of Jose Quervo Gold and consult your nearest bartender immediately. =============================================================================== Retix USMail: 2644 30th Street, Santa Monica, CA 90405-3009 U.S.A Tel: (213) 399-1611 Fax: (213) 458-2685 Telex: 4944307 E-mail: jay@retix.com X.400: C=US;ADMD=TELEMAIL;PRMD=RETIX;O=OSI ONE;S=LOGUE;G=JAY ===============================================================================
markw@hpcuhe.cup.hp.com (mark williams) (06/04/91)
The original NEC multisync monitor has both TTL and analog inputs, but was (over-) designed for the EGA era (TTL in, 9-pin connector). It will sync over quite a wide range, including EGA and VGA video, using the following info: Use TTL for EGA resolution, analog for VGA (flip the input switch from analog to TTL positions, and adjust the sync until it works). You need a 9 pin (EGA) to 15 pin (VGA) adapter and a VGA cable to use it with most VGA boards. JDR Microdevices in San Jose sells both adapters and cables. I am sure of all this because I am using the monitor in VGA mode on a home system. Clean Deal!
jay@retix.retix.com (Jay Logue) (06/05/91)
In article <45390002@hpcuhe.cup.hp.com> markw@hpcuhe.cup.hp.com (mark williams) writes: >The original NEC multisync monitor has both TTL and analog inputs, but was >(over-) designed for the EGA era (TTL in, 9-pin connector). It will sync over >quite a wide range, including EGA and VGA video, using the following info: > >Use TTL for EGA resolution, analog for VGA (flip the input switch from analog >to TTL positions, and adjust the sync until it works). You need a 9 pin (EGA) >to 15 pin (VGA) adapter and a VGA cable to use it with most VGA boards. >JDR Microdevices in San Jose sells both adapters and cables. > >I am sure of all this because I am using the monitor in VGA mode on a >home system. Clean Deal! This is absolutely right! Even though I'm having a b**ch of a time finding a 9 to 15 pin adapter, I was able to jury-rig a cable and, lo-and-behold, on my screen was beautiful 256 color VGA! I'm able to run X in 800x600x256 non-interlaced with no problems. I have to fiddle with the controls a bit to get the image sync'ed and centered. But other than a little flairing for bright images, the picture is quite good. For anyone with one of these monitors that wishes to upgrade from EGA to VGA, the effort is painless and cheap. Why pay $400+ for a NEC 2A when the monitor on your desk will do the job!?! The only things you'll give up are automatic syncing/centering and a little image quality (but give 'em a break, these monitors are old and if they're like mine, they've been through alot). BTW, the 9 to 15 pin adapters are really not hard to find. It's just that no one in a 50 mile radius of me seems to have one in stock! Jay Logue =============================================================================== INGREDIENTS: Jay Logue's personal opinions, cute signature, physical/electronic addresses, and one or more of the following used as a filler: assorted quotations, extraneous punctuation, white-space. CONTAINS NO OFFICIAL EMPLOYER OPINIONS OR POSITIONS. Not to be taken internally. If accidentally injested, flush with generous quantities of Jose Quervo Gold and consult your nearest bartender immediately. =============================================================================== Retix USMail: 2644 30th Street, Santa Monica, CA 90405-3009 U.S.A Tel: (213) 399-1611 Fax: (213) 458-2685 Telex: 4944307 E-mail: jay@retix.com X.400: C=US;ADMD=TELEMAIL;PRMD=RETIX;O=OSI ONE;S=LOGUE;G=JAY ===============================================================================
wdp@ee.egr.duke.edu (William D. Palmer) (06/05/91)
Wednesday, 04 JUN 91 To: Jay Logue (jay@retix.retix.com) In reference to your posting in comp.sys.ibm.pc.harware (10048): > Subject: Anyone have info on a NEC Multisync monitor?? > Date: 29 May 91 23:47:11 GMT > Can anyone send me this information? I imagine its readily available > in the user documentation that came with the monitor. I presume you want to use it for VGA. If this is so, you need to make an adapter cable from an HD-15P at the VGA card to a DB-9S at the multisync. Typical pinouts are shown below. VGA output NEC input 1. RED (out) 1. RED (in) 2. GREEN (out) 2. GREEN (in) 3. BLUE (out) 3. BLUE (out) 4. Monitor ID2 4. Horizontal SYNC (out) 5. GROUND 5. Vertical SYNC (out) 6. RED (return) 6. GROUND 7. GREEN (return) 7. GROUND 8. BLUE (return) 8. GROUND 9. No Pin 9. GROUND 10. SYNC (return) 11. Monitor ID0 12. Monitor ID1 13. Horizontal SYNC (out) 14. Vertical SYNC (out) 15. Reserved So you need to make a cable like this HD-15P DB-9S FUNCTION 1. --------------------- 1. RED 2. --------------------- 2. GREEN 3. --------------------- 3. BLUE 13. --------------------- 4. H SYNC 14. --------------------- 5. V SYNC 5. ------------------+-- 6. GROUND |-- 7. |-- 8. +-- 9. Set the switches on the NEC to ANALOG, MANUAL, and 64 COLOR. Run a program that uses graphics mode and adjust V HOLD for no roll as you switch back and forth between text mode and graphics mode. Adjust the CONTRAST and BRIGHTNESS controls until the colors look O.K. THis information is tested only on the NEC Multisync JC-1401P3A with a Video 7 VEGA card. Any use with other equipment is strictly framming on the permis of the derialtor, blah, blah, etc. > Thanks in advance! You're welcome. > Jay Logue Dev Palmer wdp@dukee.egr.duke.edu Duke Electrical Engineering Room 309 Old Engineering Bldg. Durham, NC 27706 (919) 660-5282