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Ledco premier 4 series Diagnostic Manual

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LEDCO PREMIER 4 SERIES LAMINATOR
PROBLEM DIAGNOSTIC CHARTS
Problem
Laminator will not
heat up,heat switch does
not illuminate (red) when
engaged
Heat switch illuminates,
but digital display does
not
Heat switch does not
illuminate when
engaged,digital display
shows three dashes
( - - - )
Skill Level Index: * Basic,End-User ** Intermediate or Dealer *** Advanced or Servicing Dealer/Technician
Possible Cause
No power
Heat switch failure
Heater failure
Heat sensor failure
Heat control board
transformer failure
Heat control board
relay coil failure
___________________________________________________________________
Heat control board relay
switch failure
___________________________________________________________________
Ribbon cable wires to
display disconnected,
loose or broken
___________________________________________________________________
Digital display failure
___________________________________________________________________
Ribbon cable failure
___________________________________________________________________
Heat sensor wires
disconnected or loose
Heat sensor failure
Ribbon cable failure
Heat control board failure
at specific terminals
Heat control board failure
Repair Procedure
Check power cord
Check for wires that are
disconnected, broken or
shorting out
Check heat switch
Check heaters
Check heat sensor
Check specific heat control
board terminals
Check heat control
board heat sensor terminals
Check heat control board
relay switch terminals
Re-connect plastic wire
harness to the back of
digital display
Re-connect plastic wire
harness to heat control
circuit board inside the
machine
Replace ribbon cable
Check specific terminals
on heat control board
Page 1
Procedure
Skill
Number
Level
1
*
2
*
4
*
5
**
6
**
7
**
8
***
12
***
13
***
14
***
5
**
9
***
10
**
11
***
5
*
15
**
11
***
13,14
***
16
***

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Summary of Contents for Ledco premier 4 series

  • Page 1: Table Of Contents

    LEDCO PREMIER 4 SERIES LAMINATOR PROBLEM DIAGNOSTIC CHARTS Procedure Skill Problem Possible Cause Repair Procedure Number Level Laminator will not No power Check power cord heat up,heat switch does Check heat switch position not illuminate (red) when Check heat control fuse...
  • Page 2 LEDCO PREMIER 4 SERIES LAMINATOR PROBLEM DIAGNOSTIC CHARTS Procedure Skill Problem Possible Cause Repair Procedure Number Level Laminator heat cannot Heat controls set to "C" Reset heat control for "F"per be controlled for celcius instead of "F" instructions in owners/...
  • Page 3 LEDCO PREMIER 4 SERIES LAMINATOR PROBLEM DIAGNOSTIC CHARTS Procedure Skill Problem Possible Cause Repair Procedure Number Level Skill Level Index: * Basic,End-User ** Intermediate or Dealer *** Advanced or Servicing Dealer/Technician Laminating rollers Drivetrain failure Check drive chain. operate intermittently, Check drive sprokets.
  • Page 4 LEDCO PREMIER 4 SERIES LAMINATOR PROBLEM DIAGNOSTIC CHARTS Procedure Skill Problem Possible Cause Repair Procedure Number Level The film does not Thicker documents Run at a higher temperature adhere to the document absorb the heat. not to exceed 340 degrees Thin (1.5 mil) films lose...
  • Page 5 LEDCO PREMIER 4 SERIES LAMINATOR PROBLEM DIAGNOSTIC CHARTS Procedure Skill Problem Possible Cause Repair Procedure Number Level Skill Level Index: * Basic,End-User ** Intermediate or Dealer *** Advanced or Servicing Dealer/Technician Laminated item has Adhesive build-up or Clean the rollers.
  • Page 6 LEDCO PREMIER 4 SERIES LAMINATOR PROBLEM DIAGNOSTIC CHARTS Procedure Skill Problem Possible Cause Repair Procedure Number Level Page 6...

  • Page 7: Check Heat Switch Position

    PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 1. Check power cord. Power cord must be securely inserted into the wall outlet (110v AC). Power cord must be securely inserted into the receptical on the back of the laminator. 2. Check heat switch position.

  • Page 8: Replace Digital Display

    PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 7. Check heaters. Remove the right plastic housing as described in 3 above. Check continuity of the top heater with a multimeter by placing a probe on each wire lead of the top heater.

  • Page 9: Replace Heat Sensor

    PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 12. Check the heat control board transformer. Remove the right plastic housing as described in 3 above. Access heat control board as described in 9 above. Disconnect all wire leads from their respective terminals on the heat control board,make note of their locations.

  • Page 10: Replace Heat Control Board

    PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 16. Replace heat control board. Remove both plastic housings as described in 3 above. Access heat control board as described in 9 above. Disconnect all wire leads from their respective terminals on the heat control board,make note of their locations.
  • Page 11 PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 21. Check speed dial potentiometer. Remove the right plastic housing as described in 3 above. Check resistance of speed dial potentiometer with a multimeter (1.) Disconnect the grey and brown wire leads at their quick disconnects.
  • Page 12 PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 25. Check motor control board and drive motor. Remove the right plastic housing as described in 3 above. Check motor control board and drive motor voltage with a multimeter set at volts DC (1.) Locate forward/reverse jog switch.
  • Page 13 PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 28. Clear minor "wrap-around". Visually check all four rolls for any film wraparound or foreign objects. Carefully remove foreign objects. If a "wrap-around" occurs while the laminator is cold, reverse the direction of the rubber rolls, permitting the laminator to release the film from the rolls.
  • Page 14 PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 31. Clear "wrap-around" by removing and cleaning or replacing rolls. Remove the rubber rollers (1.) Remove drive chain and sprockets as described in 27 above. (2.) Remove rubber roll gears as described in 24 above.
  • Page 15 PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 34. Check cooling fans. Remove both plastic housings as described in 3 above. Access cooling fans and wiring as dedescribed in 9 above. Visually inspect all wires and connectors to fan motors,replace or rewire as needed per schematic.
  • Page 16 PREMIER 4 SERIES LAMINATOR REPAIR PROCEDURES 38. Check rubber roll dwell line. Create a "dwell line". The "dwell line" is the imprint the front laminating rolls leave in the web of a threaded and heated laminating machine after being stationary for 90 seconds.
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