Oge

Replace the 7805 with a 7805CV and the big electrolitic capacitor with a fresh one. Cheers, Oge

When it comes to a clone, it could be that some particular IC has failed. They are harder to repair and the same applies for replacements.

It is possible to modify a Joypad for Atari Jaguar use but it is a very difficult task as it requires not only recreating from zero the circuitry of the standard Jaguar Joypad (74HC~ IC, diodes, etc.) but also adapting the donor Joypad to it. Possible but PITA. Cheers, Oge

Could you post some (Hi-Res) photos? Cheers, Oge

Do not use USB wall warts as, to my opinion, their ripple is way too high. The Commodore 64 will work but you will sensibly reduce the durability of its ICs. Cheers, Oge

Up. Cheers, Oge

Undo the modification one by one till the problem disappear in order to know what went wrong.

PM sent to you. Cheers, Oge

I suggest a 7805CV. You will be just perfect with that as it is capable of 1,5A. Cheers, Oge

What about a IBM PS/1?

Sure. As I write I'm thinking of a Multi-Plug which is even more *particular* than the one already build. The lenght of each cord is of 1,5MT. If you have suggestions feel free to write them here. Right now: 1) It is perfectly possible to request for a custom cord (if you, e.g, desire to power one NES, a Sega Genesis and an Atari Jaguar at the same time you will receive a Multi-Plug with three *Black Plugs*, a single *Yellow Plug* and one *Gray Plug*); 2) The original DC Plug will be left untouched; 3) Longer cords can be requested; 4) Both the list of compatible consoles for each plug and their exact polarity will be clearly written and attached. I'm pretty confident of the quality of that Power Supply as I've been using use a pair of these since 2012 and they still work perfectly. By the way, that one ain't a laptop charger but a quality Power Supply bundled with an electronic device used in server environment. Cheers, Oge

Yes. An adapter with three different plugs (Black, Yellow and Gray) is included. I've removed the diciture of each plug from the starter post to avoid confusion, detailed one is obviously included with Multi-Combo. Cheers, Oge

No. The polarity is equal for all of the consoles listed under the Black Plug. If you are talking about the Nintendo NES and Super NES, then you should know that they don't care about polarity. Not only, with this Multi-Combo 9VDC will be feeded to the internal 7805 so the machine won't be powered from 12,4VDC (in the case of the original AC Adapter, the 9VAC is rectified and becomes unregulated 12,4VDC, so 12,4VDC unregulated is feeded to the 7805). Compare a 7805 powered from unregulated 12,4VDC and a 7805 powered from a regulated (and cleaner) 9VDC. Again, power a Sega Genesis with its (unregulated) 10V Power Supply (which fluctuates between 10~11V). Check the temperature of the internal 7805. NOW, power a Sega Genesis with a 9V regulated Power Supply and check again the temperature of the internal 7805. Which one is hotter? In which case the 7805 works cooler? In which case the 7805 does have to do extra work? Finally, compare the amount of ripple between the original Power Supply and the regulated current provided by Multi-Combo. Yes. If in doubt, all you have to do is to write which consoles do you own and then I will check - one by one - if everything is perfect. A paper with the complete list for each plug is included, there is no space for doubt. Furthermore, I had this idea since 2012 so I studied during the time each of the above listed console. Cheers, Oge

All you have to do is: 1) Use the NTSC Multi-Combo with NTSC Consoles; 2) Use the PAL Multi-Combo with PAL Consoles. It is very simple: if you have a NTSC Sega Genesis then you use the NTSC Multi-Combo. The Black Plug is the correct one. The Yellow and Gray Plugs won't simply fit. Cheers, Oge

DESCRIPTION: Whatever console you are currently enjoying it is crucial to use the right Power Supply. Your original or aftermarket AC Adapter may be in fact not working the way it should be: suffering from a very high amount of ripple (noticeable by the amount of picture and audio noise), spitting out voltage higher than the nominal one, stressing the life out of your machine with unregulated, dirty, current. With the Multi-Combo Power Supply you have now the chance to obtain a single device which makes possible to not only solve the aforementioned issues but also power up a great range of Consoles and Home Computers. Let's not forget that ol' Consoles and Home Computer were usually bundled with unregulated AC Adapters, which means that the current is not stabilized. Well, the Multi-Combo Power Supply will provide regulated and steady 9VDC which is going to extend the lifespan of all of the connected machines. PICTURES: SPECIFICATIONS: • [email protected] • O.V.P. (Over Voltage Protection) • S.C.P. (Short-Circuit Protection) • Highly Filtered S.M.P.S. (Quality Switching Mode Power Supply; Very Low Ripple; Rock-Solid Voltage) • 100~240V (Worldwide Compatibility) SUPPORTED MACHINES: • Sega Master System • Sega Master System II • Sega Game Gear (European Model) • Sega Mega Drive, Genesis • Sega Mega CD, Sega CD (Model 1) • Sega Mega CD, Sega CD (Model 2) • Nintendo NES • Nintendo Super NES • Nintendo Famicom • Nintendo Super Famicom • Nintendo Famicom Disk System • Nintendo 64 CD64 • Atari Jaguar • Atari Jaguard CD Unit • Atary Lynx II (European Model) • NEC PC Engine • TurboGrafx-16 • Sega Game Gear • Sega 32X • Sega Genesis 3 • Sega Multi-Mega • Sega CDX • Sega 32X • Atari 2600 • Sinclair ZX Spectrum • Sinclair ZX Spectrum ZX80 • Sinclair ZX Spectrum ZX81 • Sinclair ZX Spectrum +2 • Sinclair ZX Spectrum 16K • Sinclair ZX Spectrum 48K • Sinclair ZX Spectrum 48K+ • Sinclair ZX Spectrum 128K • Sinclair ZX Spectrum 128K +2 OKAY, I WANT ONE. WHAT SHOULD I DO? Simply request the Multi-Combo Power Supply writing which machines you are going to power up: it will come to you with a Multi-Combo Adapter which exactly matches your demand. As an example: Super Famicom, Sega Genesis, Sega Genesis II, Atari 2600. Or: Super Nintendo, Sega Mega Drive, Nintendo NES, Atari Jaguar. Each wire will have a white sticker indicating its purpose and you can request One, Two, Three OR Four Plugs depending on your needs. Do not forget that the Multi-Combo Power Supply is capable of powering up unusual setups (Sega Mega CD, Sega 32X) in a single shot! PRICE: €28,00 SHIPPING: €8,80 (Europe); €10,60 (Outside Of Europe)

Are you sure that the problem is the Motherboard DC Connector? Since you are at it, cut the DC Connector of that third party adapter and solder a new one.

I'd suggest cleaning it with rubbing alcohol (dismantling every single possible part) and then lubricate parts that aren't in contact with the external surface. By the way, what a great Arcade Pad. Cheers, Oge

On some Chinese AC Adapters the component count is heavily reduced for cost saving. Furthermore, capacitors and components are weight like air when compared to equivalent ones seen in other electronic devices. No wonder if they fail and run hot despite them being used for a load which is the half of the maximum rated one (in other words, they are prone to run hot already [email protected] even if they are rated [email protected]). Finally, the amount of ripple and RFI interferences on the DC side is enough to introduce disturbance affecting both the video and audio outputs (rolling bars on the screen, added noise on audio). The poor 7805 placed onto an Atari 2600 is going to do a lot of extra work. Cheers, Oge

I agree about using CRTs (as the quality is superior with Composite, S-Video and/or analog RGB when compared to any LCD out there) but I know several people who sticks to RF even if their Console or Home Computer has better outputs. Back in the day we used RF because the lack of other inputs on the TV, no more no less. Sticking on RF nowadays while there is the chance to relieve our eyes (and ears) with a better output is preferable. Cheers, Oge

Every chip is important. There are chips which are prone to failure (DRAMs, PLA, SID, CIAs, 8701) and chips which are more rugged but every single IC has to be salvaged. Cheers, Oge

Diodes are not enough and you have to check for fast ones that have a high drop voltage. You need to modify the wiring in a manner that renders inoperative the internal TTL IC of the Sega Gamepad (elsewhere you will get +5V shorting to GND when you press buttons). Cheers, Oge

There you go: 10 REM DISK DRIVE CLEANER PROGRAM 20 REM VERSION 1.0 30 REM BY MEL MOORE 40 REM DRIVE CLEANING ROUTINE FROM 50 REM QUANTUMLINK - UPLOADED BY 55 REM HUTCH 09/21/85 60 REM MAIN PROGRAM 70 GOSUB 500 :REM PRINT INSTRUCTIONS 80 GOSUB 1000 :REM SELECT DRIVE NUMBER 90 GOSUB 2000 :REM CLEAN DRIVE 95 GOSUB 3000 :REM CONTINUE OR STOP 500 PRINT"{clear}": REM PRINT INSTRUCTIONS 505 PRINT"this program will allow you to clean your disk drives witout having" 510 PRINT"to turn off your computer." 520 PRINT 530 PRINT"please select which drive you wish to" 540 PRINT"clean then follow the instructions." 550 PRINT 560 PRINT"the drive cleaning programs will " 570 PRINT"default to a 30 second time by" 580 PRINT"pressing return at the prompt." 581 PRINT:PRINT"press any key to continue" 590 GET A$:IF A$ = "" THEN 590 700 RETURN 950 REM 960 REM 970 REM 999 REM SELECT DRIVE TO CLEAN 1000 PRINT"{clear}":PRINT"please select the drive" 1010 PRINT 1020 INPUT "you wish to clean "; CL 1030 IF CL < 8 OR CL > 9 THEN GOTO 1000 1040 RETURN 1950 REM 1960 REM 1970 REM 2000 PRINTCHR$(147)"{space*8}disk{space*2}cleaning program" 2010 PRINTCHR$(17)CHR$(17)"{space*7}{rvson}insert cleaning disk now! {rvsoff}" 2020 PRINT:PRINT"{space*5}and press {rvson}return{rvsoff} when ready!" 2030 GET A$:IF A$="" THEN 2030 2040 N=30 2050 PRINT:PRINT:PRINT"{space*9}# of seconds for cleaning (30)":INPUT N 2060 PRINTCHR$(147) 2070 PRINT"{space*7}cleaning now in effect!!" 2080 PRINT:PRINT"{space*6}{rvson}do not disturb drive now!!{rvsoff}" 2090 PRINT:PRINT:PRINT"{space*4}{rvson}the red light doesn't come on!{rvsoff}" 2100 A=TI 2110 OPEN 15,CL,15:PRINT#15,"m-w"CHR$(0)CHR$(28)CHR$(1)CHR$(244) 2120 IF TI-A<(N*60)THEN 2120 2130 PRINT#15,"m-w"CHR$(0)CHR$(28)CHR$(1)CHR$(240) 2140 CLOSE 15 2150 PRINTCHR$(147) 2160 PRINT:PRINT:PRINT"{space*5}take the cleaning diskette " 2170 PRINT:PRINT"{space*7}{rvson}out of the drive now !!!{rvsoff}" 2175 PRINT 2180 PRINT "press any key to continue" 2200 GET A$: IF A$ ="" THEN GOTO 2200 2210 RETURN 2220 REM 2230 REM 2240 REM 2250 REM 2999 REM CONTINUE OR STOP 3000 PRINT"{clear}":PRINT"do you wish to clean another" 3010 INPUT "drive (y/n)"; AG$ 3020 IF AG$ = "y" THEN GOTO 80 3030 PRINT"{clear}{white}{8}{lcase}{210}eturning to {195}ommodore {199}azette...." 3040 PRINT"{home}{black}{down*2}load"CHR$(34)"program.menu"CHR$(34)","DV"{home}";:POKE198,4 3050 POKE631,13:POKE632,82:POKE633,117:POKE634,13:END Cheers, Oge

This trick works only on Breadbins. On C64Cs you would have to pin two grounds on the UserPort (which works on all models). Cheers, Oge

Two A2600 Deluxe Power Supplies are available as I write. They feature a Silver Mono Jack for improved conductivity of the DC signal. Cheers, Oge

Exactly. That is why we can connect two Datassettes at the same time (not that this won't put a stress on the 6VDC - unregulated - source) Cheers, Oge