Thanks RikoRocket I'm going to get a 12 volt supply for the pitpro and I'll leave the lanechangers as they are cheers. Gavin
High Power variable voltage mod for C7042 APB
How would you like SH type power, the ability to adjust voltage all for next to nothing? Yes? Well read on!
You need
Craft knife
Soldering iron
solder sucker
2x R010 resistors
Difficulty level 2/10 easy enough for teenagers or adults.
Stage one, remove power connector, bend up a leg and refit.
Use solder sucker to remove solder.
![]()
Be careful there is a small track on the connector side. If it breaks just use a wire to link from the diode to the side leg.
Prise connector up when all solder has gone
![]()
bend up the end leg
![]()
Solder back onto board with remaing two legs and solder a thick wire to the bent up leg. Feed wire through 5 volt regulator hole as shown
![]()
Stage 2, cut track and solder wire to it
flip board over and with the craft knife cut through the large track shown, cut back and forth until it is cleanly cut. Check with a meter if you have one
![]()
Scrape off some of the green stuff and tin the track with some solder. Now solder the wire to the track
![]()
Stage 3, add two resistors to double the current trip point
Identify the two resistors R010 in the centre of this photo. Add extra solder either end as shown.
![]()
Now solder your new R010 resistors (size 2512) directly on top.
Use a standard C7024 power supply for the untouched connector (this powers the computer)
Use a 0-15V 20-30 Amp power supply for the modified connector (this goes to the power section)
You need
Craft knife
Soldering iron
solder sucker
2x R010 resistors
Difficulty level 2/10 easy enough for teenagers or adults.
Stage one, remove power connector, bend up a leg and refit.
Use solder sucker to remove solder.
Be careful there is a small track on the connector side. If it breaks just use a wire to link from the diode to the side leg.
Prise connector up when all solder has gone
bend up the end leg
Solder back onto board with remaing two legs and solder a thick wire to the bent up leg. Feed wire through 5 volt regulator hole as shown
Stage 2, cut track and solder wire to it
flip board over and with the craft knife cut through the large track shown, cut back and forth until it is cleanly cut. Check with a meter if you have one
Scrape off some of the green stuff and tin the track with some solder. Now solder the wire to the track
Stage 3, add two resistors to double the current trip point
Identify the two resistors R010 in the centre of this photo. Add extra solder either end as shown.
Now solder your new R010 resistors (size 2512) directly on top.
Use a standard C7024 power supply for the untouched connector (this powers the computer)
Use a 0-15V 20-30 Amp power supply for the modified connector (this goes to the power section)
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Hi guy's back again for more help please.. I got my variable power supply but it has a removable metal bar which connects between negative and ground supply terminals but in the manual it says it can be negative to ground or ground to positive. It says for safe usage but don't know if i should be using it or what position to put it in thanks for any help. Gavin
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