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DB-15 monitor cables

Author	Topic
mathgeek Junior Member USA 113 Posts	Posted - 17 Dec 2001 : 18:20:14 I tried to hook up an LC to a AppleColor High Resolution RGB monitor using a DB-15 cable I bought at an electronics store. Nothing came up on the monitor. I know the LC works. I believe that the monitor works, so the question is, are there special tyes of DB-15 cables for Mac monitors? The one I got was generic from a PC-centric parts store. The guy at the store mentioned high density DB-15, but I hadn't heard of it. Anyone know what cable I need? The LC is my first 68K Mac and I'm excited to get it working, but so far the monitor thing has been a puzzle.
FireWire is fast General, 4 star USA 1559 Posts	Posted - 17 Dec 2001 : 20:51:37 Is this an original pizzabox LC? If so, you probably don't have enough VRAM. As memory recalls, the stock config is 256k - just enough to drive a 12" @ 512x384. Perhaps that 640x480 AppleColor High Resolution RGB monitor needs that 512k VRAM module checks AppleSpec well it says that you can run 640x480 with 4 bit color using the stock VRAM....there goes my first guess some basic stuff: -try zapping PRAM (cmnd+option+P+R) -press the motherboard reset button (i do believe its red on the LC) -hmmm, make sure that you plugged the monitor in before you turned the computer on. (thats a given though) then again, it might just be your "high density" cable FireWire is fast General, 4 star Forum moderator 68k Macintosh Liberation Army
mathgeek Junior Member USA 113 Posts	Posted - 18 Dec 2001 : 02:43:33 It is an original LC with VRAM installed (one SIMM with two chips, 256K? 512K?) I already zapped the PRAM, didn't work. When I went hunting for the reset button, I couldn't find one. I double checked a motherboard diagram I found online to confirm that the mother board I have is an LC. Are you sure there's a reset? I didn't get the "high density" cable. They were out of them. I got the "regular" one. Still stumped here.
FireWire is fast General, 4 star USA 1559 Posts	Posted - 18 Dec 2001 : 08:22:47 quote: It is an original LC with VRAM installed (one SIMM with two chips, 256K? 512K?) I already zapped the PRAM, didn't work. When I went hunting for the reset button, I couldn't find one. I double checked a motherboard diagram I found online to confirm that the mother board I have is an LC. Are you sure there's a reset? I didn't get the "high density" cable. They were out of them. I got the "regular" one. Still stumped here. Perhaps I'm thinking of the LC 475 mobo... -Try the monitor on any other macs you may have to verify that it works -check the video cable - disconnect and reconnect -Adjust brightness/contrast (the knobs are on the side of the monitor) -Does the monitor even power up? If not, check the power cable these may sound silly... FireWire is fast General, 4 star Forum moderator 68k Macintosh Liberation Army
Marchie Chaplain USA 911 Posts	Posted - 19 Dec 2001 : 07:57:12 The High Density DB-15 is a SVGA cable like is used on modern Macs. There's absolutely NO way it'll work with the LC. ~Marchie ~Chaplain Marchie 68k Macintosh Liberation Army ~~"We are all Mad here."~~
FireWire is fast General, 4 star USA 1559 Posts	Posted - 19 Dec 2001 : 21:54:35 he mentioned that he got the normal DB-15, not the "high density) variety FireWire is fast General, 4 star Forum moderator 68k Macintosh Liberation Army
maclover5 LC Doctor/Hot Rodder Australia 5830 Posts	Posted - 22 Dec 2001 : 00:19:51 quote: Perhaps I'm thinking of the LC 475 mobo... Yeah you are. No LC, LCII or LCIII had a motherboard reset button (although my LCIII has solder pads for one). The LC 47x series Macs had CUDA reset buttons though, and yeah, they were red. -------------------------- Pizzabox LCs RULE!!!!!!! Warrior maclover5 68k Macintosh Liberation Army Number of 68ks Liberated: 5
mathgeek Junior Member USA 113 Posts	Posted - 24 Dec 2001 : 14:53:46 quote: -Try the monitor on any other macs you may have to verify that it works -check the video cable - disconnect and reconnect -Adjust brightness/contrast (the knobs are on the side of the monitor) -Does the monitor even power up? If not, check the power cable I don't have another mac that would work with such a tiny monitor. I disconnected and reconnected several times. The monitor definitely powers up and I tried tweeking the contrast, brightness, etc. No luck.
cinemafia Guerrilla Recon Leader USA 2965 Posts	Posted - 24 Dec 2001 : 15:17:07 Have you used it with another monitor? Most likely it's a dead PRAM batery. 666th poster to the 68K Macintosh Liberation Army Forums Mod of the Mac II series Forums Total 68K Macs liberated: 5
~Coxy Leader, Tactical Ops Unit Australia 2822 Posts	Posted - 25 Dec 2001 : 05:07:45 Never had a monitor problem with an LC with no battery... ~Coxy - Leader, Tactical Operations Unit 68k Macintosh Liberation Army (now with forums!) 00013 Macs liberated.
FireWire is fast General, 4 star USA 1559 Posts	Posted - 28 Dec 2001 : 21:44:06 quote: I don't have another mac that would work with such a tiny monitor. That monitor should work with any Mac that has the DB-15 video. (size doesn't matter) FireWire is fast General, 4 star Forum moderator 68k Macintosh Liberation Army

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