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Title: Is a Emulator II blowing fuse worth to purchase? Post by: rtech on February 19, 2010, 11:19:18 AM Hey everyone,
I have an opportunity to purchase an EII that is blowing the fuse, how much do you think I should pay for it? And how much are the repairs assuming that it is only the PSU? PS, what is the going price for a fully working unit? Thanks Rtech Title: Re: Is a Emulotor II blowing a fuses worth to purchase? Post by: captainjc on February 19, 2010, 12:38:43 PM In good condition, I've seen them go for $500-1000. Less than that I would say is a deal, especially if you don't have to ship it (HEAVY!). It depends on many factors like, how good the condition, recently serviced, how big a library (disks sell for decent money on their own if you search ebay completed), whether it's mac -> SD capable (some rev 0's and early rev 1's are not). Not sure about the PSU thing. If you search the yahoo group, I know there are people who have done it on there - possibly on here too.
Title: Re: Is a Emulotor II blowing a fuses worth to purchase? Post by: rtech on February 19, 2010, 12:51:21 PM Thanks captainjc,
I am going to go check it out later on today. The owner says that it is not functioning at all, because when you power it up it just blows the fuse. I dont think he has any disks with it. Im hoping to open it up and see if I can see any damage/burned parts. While I am at it, I will look for the Mac interface and whether it has the newer Rev 1 Board. Thanks Title: Re: Is a Emulator II blowing fuse worth to purchase? Post by: captainjc on February 19, 2010, 03:19:07 PM Be advised, even the ones that are not mac compatible have a (totally useless) rs232 connector back there. The mac interface needs the rs422 which is in most rev 1 models. Here's some info from the yahoo group that may be of help...
> Rev.1 boards do not require the installation of an > additional RS-422 interface board (Mac Int PCB). However, due to E- > mu design changes several modifications are made at the factory to > allow the Mac and Emulator to communicate. Unfortunately, these mods > were not made at the factory to a number of Rev.1 Emulator II's. > Check to be sure that > the following mods have been made to the digital board: > > 1. The trace leading to the end of R48 closest to the back panel has > been CUT. R48 is immediately to the left of CN12, the 25-pin > computer connector. > > 2. The trace going to lC132, pin 10 has been cut. This may be > difficult to see. The trace runs right next to the body of the IC > socket of IC1 32, on the right side of the chip, between the middle > and the bottom of the chip (quite near pin 10). If it has not been > cut, or you are not sure, then lift pini 0 of 10132 up out of the IC > socket so that nothing contacts it. Do this by removing the entire > chip from the socket, then bending pin 10 up and re-inserting the > chip into the socket. Pin 10 should not go into the socket. > > 3. If you do not have AT LEAST VERSION 2.3 of Emulator II OS > software, then the following mod must be performed: Lift pin 22 of > IC107 and solder one end of a 1K ohm 1/4watt 5% resistor to it. > Solder the other end of the resistor to +5 volts DC anywhere nearby. > > 4. To improve data integrity, change resistor R47 on the logic board > from 10K ohms 1/4W 5% to 1K ohms 1/4W 5%. Soldering a 1K ohm > resistor in parallel with the existing 10K ohm resistor at R47 will > also work. > > 5. Verify that the two internal EPROM's in the Emulator (MAIN and > SCANNER) are AT LEAST Rev. 2.1. Verify that the Emulator II OS > software being used is at least Rev. 2.2. > |