Hoshizaki JWE-620UA-6B service manual Control Board Layout, CN5

Page 20

2. Control Board Layout

Inputs and outputs are laid out on the control board as illustrated below.

Signal Input XA Connector (6P)

Buzzer Output XA Connector (2P)

Signal Input XA Connector (10P)

Power Input VH Connector (4P)

Thermistor Signal Input

XA Connector (4P)

 

 

 

 

 

 

 

 

CN2

1

10

1

6

1

2

1

4

1

 

 

 

 

 

 

Power Input VH Connector (6P)

 

CN8

 

CN9

CN10

 

 

4

 

 

CN1

 

 

 

 

High

 

 

 

 

CN7

 

 

 

 

6

1

 

 

 

 

 

X1

 

 

 

 

Low

VR1

 

 

 

 

 

 

 

X2

1

 

 

 

 

Buzzer Volume

 

 

 

 

 

 

 

8

 

 

 

 

 

Output VH Connector (7P)

CN6

X3

 

 

 

 

 

 

 

1

 

 

 

X4

7

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

X5

CN3

 

CN5

CN11

CN13

CN12

X6

1

Output VH Connector (5P)

1

 

3

1

X7

 

 

 

2 1

3

1

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN4

 

Operation Board XA Connector (5P)

 

 

 

 

XH Connector (3P): not in use

 

 

 

 

 

 

 

 

 

XH Connector (2P): not in use

XA Connector (3P): not in use

Heater Control Signal Input

XA Connector (8P)

15

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Contents Model JWE-620UA-6B Hoshizaki AMERICA, INC Contents Page Important Safety Information Specifications Specification Sheet DisplayNameplate Rating Dimensions/Connections II. General Information A. Construction DishwasherInternal Booster Tank Control Box Auxiliary Code U-1, U-2, U-3, V-0, A-0Auxiliary Code A-1 and Later Auto Fill lamp flashing and RINSE, STANDARD, or Long lamp on Sequence of OperationAuto Fill Cycle Wash Cycle STANDBY/CLEANING Button Start Rinse CycleRinse lamp flashing DrainSequence of Operation Flow Chart Auxiliary Code A-1 and Later Control Board and Operation Board Control Board LocationControl Board Layout CN5Control Board Diagram CN9X10 Error Codes Mode LampsReady Lamp Auto Fill LampMode Button STANDBY/CLEANING ButtonService Menu Access Standby LampService Menu Chart Auxiliary Code U-1, U-2, U-3, V-0, A-0 DefaultService Menu Chart Auxiliary Code A-1 and Later Temperature Display Error Codes Internal Booster Tank Energy Saving ModeBuzzer Special ModesAlert Function Auxiliary Code A-1 and Later Continuous Wash ModeConsecutive Rinse Mode OFF Switch Open/Closed Display Mode III. Service DiagnosisDiagnostic Procedure Page Error Codes Error Code TableError Code Log Error Code Details Auto Fill Error A1Internal Booster Tank Auto Fill Error A2 Wash Tank Water Level Error A3 Defective Replace Control Board Repair or replace Replace Wash Tank Thermistor Error H1, H2 Internal Booster Tank Thermistor Error H3, H4 ROM/RAM Error H5 Eeprom Error H6Phase Reversal Error H7 Service Flow Charts Unit Will Not StartPage Dishes Not Clean Page Inadequate Rinse Dishwasher Will Not Start When Door Closed No or Inadequate Detergent/Rinse Aid Supply Wash Tank Water BoilsWash Tank Water Not Draining Float Switch Cleaning Float Switch Check and CleaningFloat Switch Check Thermistor Check Removal of Panels IV. Removal and Replacement of ComponentsAccessing the Control Box Page Removal and Replacement of Internal Booster Tank Removal and Replacement of Wash Pump Motor Removal and Replacement of Rinse Pump Motor Removal and Replacement of Handle Removal and Replacement of Door Removal and Replacement of Spring Unit Removal and Replacement of SpringAdjustment of Door Opening/Closing Force Removal and Replacement of Flush Pipe Packing Installation Instructions Removal and Replacement of Thermistor Operation Board Removal and Replacement of Control Board or Operation BoardControl Board Page Cleaning and Maintenance Instructions Daily Maintenance Pump Filter Water Level Sensor Location Front Self-Cleaning Weekly Maintenance Monthly InspectionDescaling As Required Shutdown Long Storage, Relocation, Disposal, Transfer VI. Operating Instructions VII. Technical Information Water Circuit Wiring Diagram Auxiliary Code U-1, U-2, U-3, V-0, A-0Auxiliary Code A-1 and Later