===== Heden M26VE V1 ===== 
(INSERT SINGLE HERO IMAGE HERE - other images below in media section)
==== Summary ====
==== Tech Specs ====
| Manufacturer    |Heden|
| Series          |M26|
| Model           |VE|

==== History ====
Country of Origin: \\
Release Date:  \\
Launch Price:  \\
Design Revisions:\\

==== Service ====
<nodisp 8>
Known Issues:\\
<wrap note>1. **calibration issues with Preston MDR3 system**: From testing we believe the issue occurs when the MDR is being run off the camera's power supply and the user is making fast motions with the motor. Moving fast and/or with very high torque draws more current which will cause the voltage to the MDR to dip slightly which can cause the MDR to see the temporary loss of power and think the motor is out of position causing it to recalibrate. To prevent this we have found the best thing to do is to power the MDR off it's own battery, if the issue still persists then most likely there is an issue with the motor encoder itself but this solves the issue more often than not. If the user is unable to run the MDR off it's own battery they can also try decreasing the torque on the MDR so the motor will draw less current. \\
- **Advice**: We have noticed a possible issue between our M26VE-LX motors and typically the Preston MDR-3 where the motor can recalibrate itself unexpectedly. The M26VE-LX can have a high amp draw due to its greater torque and quicker speed than our other motors which if not powered correctly can cause an over amperage which does a soft reset causing the motor to recalibrate itself as if it was just plugged in.
To help combat this we do recommend powering the MDR from its own power source but sometimes that is unavailable. If the camera has a higher amp output (ex. 2 amp and 4 amp outputs) we recommend powering the MDR from the higher amp output.
Alternatively, if the MDR can be powered by 24V instead of 12V it will draw less current and the M26VE-LX should be able to run fine.\\
2. If **C motion chip** is installed, it will not be compatible with Preston systems. Replace internal motor for normal version.\\
3. **Internal motor is loud but everything tests fine.**: There is some variation in noise level of the internal motor part. When assembled new, motors are tested to choose the quietest ones. In some cases, a slightly louder motor is used. to test is a replacement will solve the issue, connect the black/red wires to the power supply and test sound level before installation. </wrap>\\


Service Manual: [[staff:servicedb:hedenm26v2|Disassembly/Re-assembly]] \\
Screws: [[staff:servicedb:heden|]]\\
Gear Info: [[data:drivegearguide|Drive Gear Pitch Guide]]\\
Lemo Tools: https://www.digikey.com\\
<wrap note>PN: DCF.91.070.2LT</wrap>\\

\\
Full CLA: **2 hrs.**\\
<wrap note>notes here</wrap>\\
Replace internal motor (loud, slow, not calibrating well, continues to spin): **2 hrs. + Parts**\\
<wrap note>if motor is loud and adjusting screws on gear housing do not change sound and/or spindle has play or clicking noise, motor is worn out and needs replacement. \\
If adjustments to set screws on housing do not remedy then: Remove hub housing to access internal motor pin. tug on pin. If pin has some play in it then the bearings inside the internal motor and worn out. a replacement internal motor will be necessary to remedy. </wrap>\\	
Replace encoder (broken encoder): **2 hrs. + parts**\\
<wrap note>encoder is built into internal motor, entire internal motor needs to be replaced. \\
rarely: cause is broken wire between pin and lemo connector.\\
To identify: oscilloscope will show none or only one squared line instead of 2 meaning encoder or motor is bad. replace motor if only 1 squared line is showing. </wrap>\\
Calibration not responding: **1 hr. + part**\\
<wrap note>if internal motor and encoder both test good but calibration is not responding, resistor may be the cause. Replace and confirm.\\
part: resistor 5.6k</wrap>\\
Upgrade to V.2 hub housing: **1 hr.**\\
<wrap note>quote V.2 upgrade kit. includes CLA of hub section. \\
V.1 housing poorly designed. Reducing noise or torque symptoms after they occur is often unsuccessful. Highly suggest the V.2 upgrade for greater improvement, adjustability and noise reduction.</wrap>\\
Convert M26VE to M26VE-LX: **2 hrs. + parts**\\
<wrap note>**not recommended** since motor will function at a different torque level and noise levels. It will essentially be a different motor at that point. \\
parts to include: internal motor, lengthening housing insert, 16mm screws for Lemo housing. \\
upgrade benefits: top speed and acceleration</wrap>\\							
Hub has lost motion: **1 hr.**\\
<wrap note>check: adjustment set screws, if hub locating slot or pin holes are worn, that housing screws are tight, if o-ring is in housing, if internal gear (white) screws are tight.</wrap>\\ 				
Dual Pin Upgrade: **1 hr. + parts**\\
<wrap note>single pin gear carrier is compatible with dual pin gear hub.\\ 
Automatically include dual pin carrier with upgrade unless otherwise specified.\\ 
if gear carrier is too tight to fit in new ger hub, try sanding gear carrier shaft slightly to fit better. \\
This requires installation by technician. adjustments to motor are necessary to ensure noise level and feel are within spec.</wrap>\\
C-Motion Chip Installed: \\
<wrap note>no info from PLC about lemo wires positioning. Replace with new updated internal motor if any issues arise. 
C-motion chip does not work with preston motors. Heden used to say it could be modified by all info on this has been lost and is not reliable after modification. </wrap>\\
Compatibility: **TBD**\\
<wrap note>notes</wrap>\\
Comparison Guide:\\
{{:staff:servicedb:motor_comparision.jpeg?200|}}\\
</nodisp>

==== Cine-Mod ====
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Focus Ring O.D.: \\
Zoom Ring O.D.: \\
Iris Ring O.D.: \\
De-click Y/N
</nodisp>
==== Notes ====
==== Media ====