1000000538 - Power Unit ZWD225PAF-0524/J

1000000538 – Power unit ZWD225PAF-0524/J – Roland

The Power Unit 1000000538 is the genuine Roland switching power supply, made by TDK-Lambda (ref. ZWD225PAF-0524/J).

This AC/DC converter delivers the stabilised voltages needed to run the on-board electronics of Roland XJ, XC, LEC, AJ and XR series large-format printers. It powers the control boards, actuators and critical electronic components.

A failing supply can cause unexpected restarts, persistent electronic errors, loss of communication between boards or a complete machine stop. Fitting a genuine part guarantees a properly stabilised output voltage and long-term reliability of the electronics.

The board bears the DENSEI-LAMBDA silkscreen, the former name of TDK-Lambda. The manufacturer's catalogue gives the ZWD225PAF-0524 a 5 V output of 5 A and a 24 V output of 9 A, with a peak of 14 to 18 A on the 24 V depending on mains voltage.

Technical specifications

• OEM reference: 1000000538
• Manufacturer: Roland (genuine part)
• Part type: Switching power supply (AC/DC)
• Maker reference: ZWD225PAF-0524/J (TDK-Lambda)
• Type: AC/DC switching power supply
• Output voltages: 5 V / 24 V
• Shipping: Shipped ready to install
• Board marking: DENSEI-LAMBDA
• AC input: 85 to 265 V, 47 to 63 Hz (or 120 to 370 V DC)
• DC outputs: 5 V, 5 A, adjustable from 4.5 to 5.5 V; 24 V, 9 A, adjustable from 22.8 to 27.6 V, peak 14 A at 100 V AC and 18 A at 200 V AC
• Power: 225 W, peak 344 W at 100 V AC and 440 W at 200 V AC
• Protections: Overcurrent above 105% on the 5 V and 205% on the 24 V; overvoltage from 120 to 145%, which shuts down the 24 V output only
• /J option: J.S.T. connectors
• Cooling: Convection
• Weight: 670 g typical

Compatibility & use

• Roland AJ
• Roland LEC
• Roland LEJ
• Roland XC
• Roland XJ
• Roland XR
• Roland AJ-1000
• Roland AJ-1000i
• Roland AJ-740
• Roland AJ-740i
• Roland LEC-300
• Roland LEC-300a
• Roland LEC-330
• Roland LEC-540
• Roland LEJ-640
• Roland XC-540
• Roland XC-540mt
• Roland XJ-540
• Roland XJ-640
• Roland XJ-740
• Roland XR-640

Function

• Converts the AC mains into stabilised 5 V and 24 V DC
• Powers the control boards, actuators and critical electronic components
• Ensures a stable output voltage for reliable operation

Signs of wear

• Machine will not start or shuts down unexpectedly
• Random restarts during printing
• Electronic errors or alarms on the control screen
• Loss of communication between the machine boards
• Output voltages out of tolerance when measured

Replacing this part restores the machine to proper working order.

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.