how do you switch it on- it has neither computer switch wires(black,brown,blue,white)nor the green one
tnx
tnx
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Re: old ibm-6043 switching on?
does power supply have thin 3 wire into small black connector?
Use meter on ohm to find ground to metal power supply case and find 5V standby supply then the last wire is power on wire. Short this to ground wire to turn power supply on.
Cheers, Wizard -
Re: old ibm-6043 switching on?
the pinout of the ibm pc300gl mbd connector is
Connector Location Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6
P1 System Board PWRGOOD +5 V +12 V -12 V GND GND
P2 System Board GND GND -5 V +5 V +5 V +5 V
P3 3.5" Diskette Drive +5 V GND GND +12 V – –
P4 DASD +12 V GND GND +5 V – –
P5 1 DASD +12 V GND GND +5 V – –
P9 2 System Board +5 V CONTROL GND – – –
P10 Riser 3 V +3.3 V +3.3 V +3.3 V GND GND GND
P11 System Board 3 V +3.3 V +3.3 V +3.3 V GND GND GND
P12 LAN +5 V CONTROL GND – – –
but connecting pin1 to pin5 or earth did nothingComment
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Re: old ibm-6043 switching on?
thanks you probably refer to P9(or p12 -pc could be woken up from lan)Comment
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I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
These cheap non brand capacitors at it again
Last night we had a power outage [ long drawn out trying three to come back up before going out completely ] and when I went to turn the DVR camera recorder back today no go 3 bad capacitors ( one capacitor no ESR reading on DVR board the other 3 capacitor on the power supply board over 40 ohm this is not a misprint ) on the external switching power supply and one capacitor on the DVR camera recorder board where the power supply that goes to the hard drive disk is
Well at least I have the cameras back on line I to try the... -
I did not have any 27uf @ 50 volt capacitors but one nice thing is that it has enough room for two capacitors in parallel a 22uf and a 4.7uf @ 50 volts 22 plus 4.7 equals 26.7uf which so very close to 27uf I will show some pictures of it sometime tomorrow
This is one of the shit est boards I seen in a very long time and it was the daughter board the traces just lifting off the board I had to use the capacitor leads to repair the the traces and the main board is not any better because I had to repair several traces for the daughter board to the main board
After all of... -
I have been working on this concept for quite some time now with limited success but recently I found a switching power supply that is setup for the voltage that this soldering station needs to operate at however it also needs part of the secondary circuit from the original switching power because you need several voltage rails
I once tried to get a ZD-915 desoldering station to work on a 18 volt battery power supply but unfortunately things did not go well but I did find a work around but I might try this idea again but going at a little differently more about this another time...
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