K60 Series | 36V Power Supply Inspection & Replacement Guide

Applicable Models: LINKO K60 Series DTF Printers

1. Power Supply Function Description

The printer contains multiple power supply units. Each unit is designed to supply power to a specific system inside the printer.

36V Power Supply:

Provides DC 36V power to the following two parts:

X-axis motor (powered directly)
Y-axis driver (the driver then controls and drives the Y-axis motor)

Other Power Supplies：

24V Power Supply: Supplies power to the white ink circulation pump and the white ink stirring motor.
Multi-Output Power Module: Supplies multiple DC voltages (42V / 36V / 24V) to the main board, carriage board, vacuum platform, cooling fans, display screen, electric media lift rod, etc.

2. 36V Power Supply Wiring Diagram

Category	No.	Interface	Description	ID
AC Input (External Power → 36V Power Supply)	①	Live Wire (L)	AC power input	AC-L1
	②	Neutral Wire (N)	AC current return	AC-N1
	③	Ground Wire (G)	Anti-static and safety grounding	–
DC Output (36V Power Supply → X-axis Motor / Y-axis Driver)	④	36V Negative	Output to Y-axis driver (–)	–
	⑤	36V Negative	Output to X-axis motor (–)	–
	⑥	36V Positive	Output to Y-axis driver (+)	–
	⑦	36V Positive	Output to X-axis motor (+)	–

3. Fault Inspection Procedure

(Correct sequence: Check AC first, then DC)

⚠ Important Logic Note:
If the external power input (①②) has no voltage, the 36V power supply outputs (④⑥) and (⑤⑦) will read 0V.
This is normal and does not indicate a faulty power supply.
Always check the external power input first before checking the 36V power supply output.

3.1 Safety Warning

Important (Operation Rules):

Voltage measurement must be performed with power ON.
Power must be OFF when replacing the power supply.

⚠ Wear insulated gloves and avoid contact with exposed circuits.

3.2 Check External Power Input (AC Input) (①–②)

Multimeter Mode: ACV 600V
Measurement Method:

Red probe → ① (AC-L1) Live wire
Black probe → ② (AC-N1) Neutral wire

Normal Value: AC 200–240V
→ The power supply has input power. Continue checking the 36V output.
Abnormal: 0V or unstable voltage
→ Not a power supply fault. Check the following:

Cable disconnection
Main power switch not turned on
Emergency stop not released
No power at the socket
Loose AC cable
Loose or oxidized terminals
Cable breakage

3.3 Check Y-axis Driver (DC Output) (④⑥)

Multimeter Mode: DCV 200V
Measurement Points (See Figure 3.3):

Red probe → ⑥ Y-axis driver (+)
Black probe → ④ Y-axis driver (–)

3.3.1 Y-axis Driver DC Output Result Evaluation Table

Measurement Result	Status Judgment	Action
35–37V (±10%) and Y-axis driver is working	✅ DC output normal	Power supply is normal. No replacement required
35–37V (±10%) but Y-axis driver is not working	✅ Power supply is normal → fault is not in the power supply	Continue checking the Y-axis driver input voltage
0V or significantly low (AC input confirmed normal)	❌ Internal power supply fault	Replace the 36V power supply

3.3.2 Further Inspection of Y-axis Driver Input Voltage

Input Voltage	Fault Judgment	Action
0.0V	Power is not delivered to the Y-axis driver → cable break / terminal oxidation	Check the cable condition and replace if necessary
35-37V (±10%) but Y-axis driver is not working	Y-axis driver failure	Replace the Y-axis driver

3.4 Check X-axis Motor (DC Output) (⑤⑦)

Multimeter Mode: DCV 200V
Measurement Points (See Figure 3.4):

Red probe → ⑦ X-axis motor (+)
Black probe → ⑤ X-axis motor (–)

3.4.1 X-axis Motor DC Output Result Evaluation Table

Measurement Result	Status Judgment	Action
35–37V (±10%) and X-axis motor is working	✅ DC output normal	Power supply is normal. No replacement required
35–37V (±10%) but X-axis motor is not working	✅ Power supply is normal → fault is not in the power supply	Continue checking the X-axis motor input voltage
0V or significantly low (AC input confirmed normal)	❌ Internal power supply fault	Replace the 36V power supply

3.4.2 Further Inspection of X-axis Motor Input Voltage

Input Voltage	Fault Judgment	Action
0.0V	Power is not delivered to the X-axis motor → cable break / terminal oxidation	Check the cable condition and replace if necessary
35-37V (±10%) but X-axis motor is not working	X-axis motor failure	Replace the X-axis motor

4. Power Supply Replacement Procedure

4.1 Power Off the Equipment

Press the emergency stop switch
Turn off the main power
Unplug the power cord (See Figures 4.1-1 / 4.1-2)

4.2 Remove the Old Power Supply

4.2.1 Disconnect Cables

According to Figure 2, loosen the terminal screws numbered ①–⑦ in sequence.
Disconnect the cables one by one and take photos of the wiring layout for correct reconnection later.at volutpat.

4.2.2 Remove Mounting Screws

Loosen the fixing screw ① and the positioning screw ②, then remove the old power supply.

4.3 Install the New Power Supply

4.3.1 Confirm Model Consistency

Ensure the new power supply model matches the old one.

4.3.2 Secure Installation

Align the mounting holes, position the power supply correctly, and tighten the screws.

4.3.3 Cable Connection

Reconnect all cables in sequence according to Figure 2.
Make sure each cable is fully inserted, correctly oriented, and securely tightened.

5. Power-On Inspection

5.1 After all cables are connected, recheck for looseness.
5.2 Plug in the power cord and turn on the main power switch.（See Figure 3.1）
5.3 Rotate the emergency stop switch clockwise to restore power. （See Figure 5.3）

5.4 Final Status Check

After powering on the machine, confirm the power supply status as follows:

Check the power supply indicator light.
Measure the 36V output voltage again.

✅ Normal:

The indicator light is on or flashing normally.
Voltage reads 35V–37V.

❌ Abnormal:

Indicator light is off or flashing abnormally.
Voltage reads 00.0V.

If abnormal, recheck all wiring connections.

Technical Support
Email: support@dtflinko.com
Website: www.dtflinko.com