Name: Datamax I-Class Mark II
Brand: Datamax
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I-Class Mark II Maintenance Manual

Troubleshootin

3.2.2 No Power



Note: (1) Ensure the AC outlet is functioning properly, with the power cord securely connected to the

outlet and printer; and, (2) some printer circuits are protected by resettable fuses, when tripped

cycling power will reset those fuses.

1. Turn OFF the printer. Wait 30

seconds then turn the printer ON.

Did the printer power up?

If the display remains dark, press and hold

the Menu key to adjust contrast; otherwise,

replace the Front Panel PCB; see Section 4.3.

2. Turn OFF and unplug the printer.

Check fuses F1 and F2 on the Power

Supply PCB. Is a fuse blown?

Replace the fuse(s); see Section 4.10. If

the fuse(s) continue(s) to fail, replace the

Power Supply PCB; see Section 4.11.

3. Disconnect the cables from J2 and J6

of the Power Supply PCB. Plug in and

turn ON the printer. Does the printer

power up?

Reconnect either cable. When power-up

ceases, replace the associated

component(s).

4. Is the green LED located on the

Power Supply PCB) ON?

Possible loose Front Panel cable; or,

defective Front Panel PCB (see Section

4.3) or Main Logic PCB (see Section 4.9).

Defective AC Power Cord or

Power Supply PCB.

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