Adds 3D Printed Tonearm Clip to the Numark PT01
Parts needed:
3D printed tonearm clip
notes:
-only for use with 3D printed tonearms
-Install 3D Printed Tonearm Clip
1. Remove white backing paper from tonearm clip
2. Stick 3D printed tonearm clip onto existing PT01 tonearm clip. Make sure the orientation of the 3D printed clip base matches the existing PT01 tonearm clip, before sticking (one side is round, one side is square)
Adds start/stop switch to the Numark PT01
Parts needed:
SPST (Push 0n – Push off) Switch
notes:
-any push on – push off or latching switch with a greater than ~300mA rating will work for this
-the switch listed above was used for this install
-if you remove the PT01 faceplate, this switch fits in the existing spring hole without drilling (remove the spring, which is attached internally with one screw)
-Remove the Existing Switch
1. Unsolder and remove the existing start/stop switch (see pic_1_remove_switch)
-Mount the New Switch
2. Mount the new switch in a preferred location (see pic_2_mounted switch). For this guide, the switch is mounted in the existing spring hole with the faceplate removed (see faceplate removal guide for instructions on removing the faceplate).
-Solder Wires
3. Solder 2 wires to the existing switch PCB (see pic_3_add_wires)
4. Solder these wires to the new switch (see pic_4_connect_switch)
How to Install Platter Bars for the Numark PT01
Parts needed:
platter bars
needle nose pliers
Optional Parts:
silicone grease
notes:
-there are at least 2 different platter heights for the PT01
-the older model, circa 2006, has a low platter height
-the newer model, circa 2014, has a high platter height
-one clear difference between models is that the belt holder attached to the motor is plastic on the 2006 model, and metal on the 2014 model
-Remove Platter
1. Use a pair of pliers to push off the spindle clip (see pic_1_remove_spindle_clip)
2. Push on one edge of the platter to raise the opposite edge
3. Lift the platter using the raised edge, and remove platter (see pic_2_remove platter)
-Install Platter bar
4. Remove white adhesive backing from platter bar (see pic_3_platter_bar_backing)
5. Place the wide edge of the platter bar flush against the turntable wall (see pic_4_place_platter_bar)
6. Cut or break off the 2 nubs on the bottom side of the platter (they have no functionality). This will stop the nubs from potentially hitting the platter bars. See pic_6_cut_nub
7. Reinstall the platter and platter clip.
a. wrap the turntable belt around the inner edge of the platter first
b. place the platter on the spindle, while pulling on the belt with one finger to keep tension
c. wrap the belt, which is being held with one finger, around the motor spindle
d. reinstall platter clip using pliers
8. Turn on the motor and let the platter spin. If the platter rubs on the the platter bars, push down hard on the platter and move it back and forth in a baby scratch motion. This will grind down the platter bar’s plastic housing. Turn on the motor again to see if the platter still rubs on the platter bars. Repeat until the platter stops rubbing on the platter bar during playback. See “How to Grind Down Platter Bars Video”, below:
How to Grind Down Platter Bars Video:
Platter Bar Comparison Video:
Adds 12V rechargeable Lithium Ion battery to the Numark PT01
Parts needed:
12V rechargeable battery
DC plug (2.1mm x 5.1mm)
Picture hanging Strips (optional, or can be substituted):
notes:
-Disconnect the rechargeable battery from the PT01, when powering the PT01 from a wall supply.
-Charge the battery by disconnecting the DC plug from the battery, and charge it using it’s supplied charging wall supply.
-The battery power switch must be on, while charging the battery (explained in the battery instructions, but are in Chinese)
-Turn the battery power switch off, when not in use to save charge (not required).
-see LM7805 data sheet for more info on the PT01 regulator (actual part number is LM7809)
-Connect Wires to the PT01 Power Supply Input
For PT01 or PT01USB (see step 1b for PT01-Scratch):
1a. On the PT01 or PT01USB power supply PCB (not PT01-Scratch), solder a GND wire (black) to the center pin (pin 2) of the LM7809 regulator (see pic_1_PT01_regulator)
2a. On the PT01 or PT01USB power supply PCB, solder a power wire (red) to pin 1 of the LM7809 regulator (see pic_1_PT01_regulator)
For PT01-Scratch:
1b. On the PT01-Scratch power supply PCB, solder the GND and Power wires to the bottom side of the DC input connector (see pic_1_PT01_regulator)
-Connect DC Plug
3. Confirm whether the center pin of the DC plug needs to be + or – by reading the label on your rechargeable battery. The center pin is + for the battery listed above.
4. If using the battery listed above, solder the red wire to the center pin of the DC plug (see pic_2_DC_plug)
5. If using the battery listed above, solder the black wire to the outer ring of the DC plug (see pic_2_DC_plug)
-Mount Battery
6. The battery can be mounted however you like. I like the using the picture hanging strips listed above. One strip is mounted on the wall of the PT01 within the battery compartment (sticky side against wall), and one strip gets mounted on the battery (sticky side against battery). I put a set of strips on 2 sides of the battery (example: side and top). This is rock solid, and allows the battery to be removed, if necessary (see pic3_Battery_placement).
Adds an m44-7 Compliant Tonearm to the Numark PT01
Parts needed:
3D printed tonearm
needle nose pliers
notes:
-connecting the shure m44-7 to a stock PT01 reduces audio output loudness (due to cartridge/preamp mismatch)
-the preamp mod is highly recommended for use with the m44-7, which boosts the m44-7 loudness
-this tonearm mod improves skating, when bouncing
-add platter bars for best bounce performance
-Remove Existing Tonearm
1. See tonearm removal guide
-Bend Small Wires
2. Bend the small wires to a 90 degree angle form the wire housing to make an “L” shape (see pic_1_L_shape_wire)
-Install wire
2. Starting at the back side of the tonearm, and place the thick insulated part of the wire in the trough of the tonearm.
3. Slide the thick part of the wire along the trough towards the headshell. Allow the small wires to pass through the tight restraint sections of the tonearm. Don’t pull on the small wires. Just push the thick part of the wire, and guide the small wires through the restraint (see pic_2_wire install)
4. Continue sliding the wire through the tonearm until the small wires reach the headshell (see pic_3_wire_install_2)
-Mount the Cartridge
5. Connect the m44-7 or preferred cartridge to the tonearm wires
6. Mount the m44-7 to the headshell, by placing the nut on the topside of the headshell, and the screw/washer on the cartridge side (see pic_4_mount_m447)
-Install the Tonearm (David) Axle Rod
7. Place the tonearm on the tonearm base
8. Push the side of the rod that does not have a star on it through the tonearm (see pic_5_install_rod)
9. Guide the rod through the tonearm, metal tonearm base of the turntable, and opposite side of the tonearm
10. Press fit the star side of the rod into the tonearm plastic using a needle nose pliers (pic_6_press_fit_rod)
-Install Rubber Band Counterweight
11. Wrap the rubber band around the headshell side of the tonearm, and slide it towards the tonearm base (see pic_7_add_rubber_band)
12. Wrap the rubber band around the metal tonearm base (not the plastic part of the tonearm), and pull towards the back (see pic_8_rubber_band_base)
13. Align the rubber band with the grooves on the back of the tonearm, and attach to a tonearm peg (see pic_9_rubber_band_peg)
14. Adjust rubber band tension to control counterweight (see 3D printed tonearm counterweight adjustment guide)