Artist equalizer 9volt battery

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Author Message   LReynolds Posted on Friday, January 19, 2001 - 7:22 am:    My 1980 artist takes a 9volt battery with a switch to activate the equalizer. Apparently if the EQ is turned on, it acts like an overdrive pedal. Does anyone have a similiar guitar, or is this a standard feature with an AR3000?   JOhnS Posted on Friday, January 19, 2001 - 11:06 pm:    My '78 2622 also takes a 9 volt battery. It's pretty standard for guitars equipped with "active" electronics. Do you have to unscrew the control panel to get at the battery? On later models, they built a separate battery compartment with an easy access door. Makes it a lot easier to change the battery. What color is your guitar? JohnS ICW   LReynolds Posted on Monday, January 22, 2001 - 4:08 am:    My guitar looks excatly like the AR3000 at http://www.comcat.com/~alnico5/srtist.html. Yes, my artist has a separate compartment for the battery. I posted another question about my gain control, which doesn't seem to function. Could the reason for that be a dead battery?   JohnS Posted on Monday, January 22, 2001 - 12:15 pm:    Lawrence: If you throw the master EQ toggle switch to ON and you hear a difference in the sound, and you can modify the sound with the 3 black controls, then the battery is probably OK. The easiest test is to change the battery and see if the gain switch comes to life. If not, then i would suspect that electronics have been monkeyed with or the PC board that controls this stuff is malfunctioning. Except for the color, the pictures of the AR500 and the AR3000 look the same. I hope somebody will jump in and tell us what the difference is.   Len C Posted on Sunday, January 28, 2001 - 1:20 am:    Posted this in another thread but it's relevant here so... Another thing you might want to do to enhance the EQ is recap the active board inside the guitar. The thing uses standard value electrolytics and they can dry out. I recently recapped mine for about six bucks and it made a world of difference. I am researching a more contemporary low noise IC to replace the motorola also. I really like the guitar but the active circuit is way too noisy. If I find something that works I'll post it here.   Len C Posted on Tuesday, February 20, 2001 - 12:39 am:    Here is a neat little interchange between myself and a tech named Rob at GuitarElectonics.com It seems that a replacement preamp for the Artist is available. ---------------------------------------------- Q: Hi I have a collection of Ibanez artists one of which is their Artist EQ model It has a 9 volt battery powered three band active EQ manufactured in 1978 - the active side is incredibly noisy. I have replaced the electrolytics and that improved it but.... I'm thinking of installing one of your preamps -The SH EQ5pcb. I know I would have to mod it and void the warranty the major mod would be to replace three of the EQ trimpots with jumpers to external pots (the ones that are already mounted on the guitar or replacements with appropriate values) A: We do this all the time. All you need is a jumper from the CENTER pin of each trim pot to the center pin of the pots on the guitars. then connect all of the outer terminals together as shown below. Pot values are 10K, but 25K-50K will work fine Q: Since the guitar only has 3 eq bands on the current rig - I'm thinking I would use the 100hz, 1000hz and either the5k or 10kHz bands. It would seem that It would be pretty straightforward to do this as long as I can keep the shielding right to keep down noise. A: Wires to the pots need not be shielded, but the contol cavity should be. Q: Any insights or comments - does the pre come with fairly detailed specs? A:It comes with No specs. =( But I can tell you the EQ stages are +/1 12 dB and battery draw is 1.2mA   JohnS Posted on Tuesday, February 20, 2001 - 12:40 pm:    Len: How much for the board? Are the dimensions of the PCB conducive to a good fit, inside the control cavity? You go first, we're right behind you. J   Len C Posted on Tuesday, February 20, 2001 - 2:33 pm:    I don't think space is the issue. I think figuring out the cleanest way to preserve the original retrofit is. I'm thinking that I will disconnect the pickups from the entire Artist original wiring, including the pots and switches that are on the original EQ. Then I can set the entire original control system aside. It means replacing all five pots (volume, active,passive balance, the three EQ pots, the microswitch and the jack, but I should be able to do it as a unit. The board is 99.00 - replacing all the other components will probably up it to 175 or so. But I'll be able to replace the entire control stuff, while still ensureing restorability. There are a couple of other issues too but these are the major ones. If I can put together a package that just disconnects the original pickups and fully replaces the wiring/contol mechanics (ensuring restorability) I'll ket you guys know. And I won't do it til I can ensure a way back. Anyone have any experience with this onboard preamp? Thanks Len C   Len C Posted on Tuesday, February 20, 2001 - 2:40 pm:    Another issue. There are five bands on the new preamp 100Hz, 300Hz, 1 kHz, 5kHz and 10kHz I will have to choose which three bands to route to the original EQ pots. I'm thinking the 300Hz, 1 kHz, 5kHz wil be most useful. 100 Hz is really a bass, not guitar frequency (at least for the tunes I play!) and There ain't much happening at 10k, Except 10 k could be pretty useful as a presence control. Ideas?   Spiro (Spiro) Posted on Wednesday, October 22, 2003 - 3:27 am:    here ya all go the original schematic for the preamp of the following models 2622 AR500 AR3000 AR5000 MC400 MC500   Spiro (Spiro) Posted on Wednesday, October 22, 2003 - 3:45 am:    here is a more detailed pic   Spiro (Spiro) Posted on Wednesday, October 22, 2003 - 3:51 am:    replacement IC's are available on the net JRC 4558D and the rest is pretty standard stuff I will take a scan of the actual board for you guys who are interested...   Spiro (Spiro) Posted on Wednesday, October 22, 2003 - 4:04 am:

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