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Hi everyone, I'm in the process of trying to repair a Macintosh PowerBook 1400cs/166 for a friend of mine. When I first got it, it just clicked when power was applied, the screen didn't do anything. Since then I've replaced all of the SMD electrolytic capacitors on the mainboard, control switch...

Hi all, I've got a Macintosh PowerBook 1400cs/166 in for repair for a friend of mine, as it wasn't starting up. I've replaced all of the SMD electrolytic capacitors on the mainboard, control switch board, and LCD board. However, all that happens now when using the original PSU is that the...

Hi all, A few months ago, I bought my first Mac SE/30 sold-as-seen on eBay, figuring I'd take my chances on the condition of the battery. I was unlucky this time, and the battery had bombed quite badly! The machine didn't make a start-up sound, and have horizontal stripes. The original digital...

Hi all, I've got my Macintosh Performa 6400/180 up-and-running after quite a bit of work (power supply rebuild, replacing dead IDE HDD with a CF card and adapter, replacing the non-working CD-ROM drive), and I want to install Mac OS 8 from CD. I have an original UK install disc, and although I...

Hi all, The power supply has unfortunately died in my Macintosh Performa 6400 - it won't start up at all. It is a 150W unit, Apple part #614-0060, Delta model number DPS-150GB B. The PWM controller (TOP200YAI) had failed dead-short across all pins. I'm not sure whether this was the cause of...

Hi all, I recently got my hands on a Mac Plus 1MB (240V), which has unfortunately died on me. I had previously serviced the board, including touching up all of the solder joints on common problematic areas and replacing the RIFAs. It was working well until about a week ago when I turned it on...

Hi all, I have a bit of a weird issue with a Macintosh Classic II that I'm trying to repair. At first, the analogue board was seemingly completely dead, and the digital board was giving a "stripy" screen. The digital board now seems to be working OK, following a recap and a CPU replacement...

Hi all, I've got a Mac Classic analogue board with DP8 damaged due to electrolyte leakage. It's used in the -12Vdc circuit, by the looks of things. The schematic says "BY 73D", and the parts says "PH 73" or vice versa, but I can't find any information on either of these. Does anyone know the...

Hi all, I recently wrote a short article on the process that I followed for building and configuring a set of BlueSCSI SD card adapters, then using them to backup and replace the original mechanical hard drives in my Macintosh Classic and Classic II - please see below, I hope it's of use and/or...

Hi all, I’ve fixed up my Mac Classic and I’m very pleased with it so far, but I’m having some problems with its RAM expansion. It came with a 1MB RAM card with two 1MB SIMMs installed, so I should be getting 4MB RAM total. However, only 2MB shows up under system information. What’s also weird...

Hi all, I've recently got my hands on three compact Macs - a Classic and two Classic IIs. I've got the Classic and one of the Classic IIs working well, which is great. However, the other Classic II is putting up a fight. Not only is the digital board not working (recapped but needs a new CPU...