POWER PLANT BUILD THREAD
Posted: Tue Mar 12, 2013 10:31 am
New JLM Audio Power Plant kit. Full 115vac/230vac to +24vdc @ 600mA and +48vdc @ 100mA power supply for running 4 x Neve, Telefunken and RCA BA modules.
+24vdc to +30vdc with 2 x 12vac transformer or +30vdc to +36vdc with 2 x 15vac transformer.
Super compact size for its power. 4.75" (120.65mm) x 2.5" (63.5mm).
Switchable 115vac/230vac. VS sync allows syncing multiple Power plants with one 115vac/230vac voltage selection switch.
Super smoothing capacitor bank and trim pot set able voltage rails for precision.
Easy heatsink or case mount with only one screw to tension regs down. Fits on bottom of 1 unit high case or side of 2 unit high case.
Regulator metal tabs face away from the PCB so they will press against metal case inside the insulating silicon tubes.
Power Plant PCB 4.75" (120.65mm) x 2.5" (63.5mm)
Power Plant Schematic here
Power Plant Parts List here
Building Power plant is very like our AC/DC kit or Powerstation kit but even easier so see that thread for step by step info here
Simple version of Power Plant kit build.
1. Use the blank PCB to mark out the 5 mounting holes in the metal case position where you are going to mount the Power Plant. (4 corner 3mm holes and 1 centre 4mm transformer mounting screw) (or at least do this before fitting the blue transformer to the PCB).
2. Build PCB from lowest to highest components with values as marked on the PCB. Once everything on top of the PCB is fitted turn it over to fit the 2 x LM317 Regs.
3. The 2 x LM317 regs have there metal tabs away from the PCB. Bend the last 5mm of the 3 reg legs 90degrees down (away from the metal tab).
4. Slide the silicon tube over the reg and hold it down in position while soldering the legs to the bottom of the PCB.
5. Mount Power plant kit into the metal case on the 4 x 6mm standoffs and screws provided.
6. The silicon tubes on the regs should be sitting against the metal surface of the case under the Power plant PCB. Use the large screw provided to clamp the regs down to the case by sliding the screw into the 4mm 5th metal case holes and into the blue plastic thread in the centre of the transformer. Tighten gently so the regs are clamped between the PCB and the metal case.
7. Set voltage selector to your mains voltage.
8. Wire Mains Ground to your metal case (The 4 mounting screws will bring the case ground to reference the 0v or the power plant via 10 ohm bypassed with 0.1uF cap to stop ground loops hums)
9. Wire mains Active via a fuse and power switch to A (Active on Power Plant). Wire Neutral to N (Neutral) on Power Plant). (ALL MAINS WIRING SHOULD BE DONE BY A QUALIFIED TECHNICIAN)
10. Double check wiring and meter mains & metal case grounds is 0 ohm on all panels of the case (if not remove powder coating under screw heads etc under you do have 0ohm to all case panerls)
11. Power up and adjust 24v and 48v rails to there correct voltages before wiring these outputs to anything. Once correct power down and wire +24v and +48v and 0v to audio gear and powr up and recheck voltages are still correct.
Note 1.
VS SYNC is NOT used with one Power Plant kit. It is only used when multiple Power Plant need to use one 115v / 230v Switch. All slave Power plant have there 115v / 230v switch NOT fitted and the 4 wires A, N, X , Y need to be wired connecting these 4 points on all Power plant.
+24vdc to +30vdc with 2 x 12vac transformer or +30vdc to +36vdc with 2 x 15vac transformer.
Super compact size for its power. 4.75" (120.65mm) x 2.5" (63.5mm).
Switchable 115vac/230vac. VS sync allows syncing multiple Power plants with one 115vac/230vac voltage selection switch.
Super smoothing capacitor bank and trim pot set able voltage rails for precision.
Easy heatsink or case mount with only one screw to tension regs down. Fits on bottom of 1 unit high case or side of 2 unit high case.
Regulator metal tabs face away from the PCB so they will press against metal case inside the insulating silicon tubes.
Power Plant PCB 4.75" (120.65mm) x 2.5" (63.5mm)
Power Plant Schematic here
Power Plant Parts List here
Building Power plant is very like our AC/DC kit or Powerstation kit but even easier so see that thread for step by step info here
Simple version of Power Plant kit build.
1. Use the blank PCB to mark out the 5 mounting holes in the metal case position where you are going to mount the Power Plant. (4 corner 3mm holes and 1 centre 4mm transformer mounting screw) (or at least do this before fitting the blue transformer to the PCB).
2. Build PCB from lowest to highest components with values as marked on the PCB. Once everything on top of the PCB is fitted turn it over to fit the 2 x LM317 Regs.
3. The 2 x LM317 regs have there metal tabs away from the PCB. Bend the last 5mm of the 3 reg legs 90degrees down (away from the metal tab).
4. Slide the silicon tube over the reg and hold it down in position while soldering the legs to the bottom of the PCB.
5. Mount Power plant kit into the metal case on the 4 x 6mm standoffs and screws provided.
6. The silicon tubes on the regs should be sitting against the metal surface of the case under the Power plant PCB. Use the large screw provided to clamp the regs down to the case by sliding the screw into the 4mm 5th metal case holes and into the blue plastic thread in the centre of the transformer. Tighten gently so the regs are clamped between the PCB and the metal case.
7. Set voltage selector to your mains voltage.
8. Wire Mains Ground to your metal case (The 4 mounting screws will bring the case ground to reference the 0v or the power plant via 10 ohm bypassed with 0.1uF cap to stop ground loops hums)
9. Wire mains Active via a fuse and power switch to A (Active on Power Plant). Wire Neutral to N (Neutral) on Power Plant). (ALL MAINS WIRING SHOULD BE DONE BY A QUALIFIED TECHNICIAN)
10. Double check wiring and meter mains & metal case grounds is 0 ohm on all panels of the case (if not remove powder coating under screw heads etc under you do have 0ohm to all case panerls)
11. Power up and adjust 24v and 48v rails to there correct voltages before wiring these outputs to anything. Once correct power down and wire +24v and +48v and 0v to audio gear and powr up and recheck voltages are still correct.
Note 1.
VS SYNC is NOT used with one Power Plant kit. It is only used when multiple Power Plant need to use one 115v / 230v Switch. All slave Power plant have there 115v / 230v switch NOT fitted and the 4 wires A, N, X , Y need to be wired connecting these 4 points on all Power plant.