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WHIRLPOOL CONSUMER SERVICES
Model 6ADP962/3 IXM
February 2002
WHIRLPOOL AUSTRALASIA CONSUMER SERVICES
SERVICE MANUAL
DISHWASHER Model 6ADP962/3 IXM Version 8542 962 53420
Copyright © 2001 Whirlpool (Australia) Pty. Limited All rights strictly reserved. Reproduction or issue to third parties in any form whatsoever is not permitted without written authority of Whirlpool (Australia) Pty. Limited Whirlpool is a registered trademark of Whirlpool U.S.A. This documentation is intended only for qualified technicians who possess the required qualifications and are aware of the regulatory requirements applicable to servicing electrical appliances.
Whirlpool (Australia) Pty Limited A. B. N. 28 003 578 023 Part No. SM4016
WHIRLPOOL CONSUMER SERVICES
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Model 6ADP962/3 IXM
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WHIRLPOOL CONSUMER SERVICES
Model 6ADP962/3 IXM
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CONTENTS
Page TECHNICAL DATA EXPLODED VIEW - CABINET EXPLODED VIEW - DOOR AND CONTROL PANEL SPARE PARTS LIST PROGRAM CHART CIRCUIT DIAGRAM PROGRAM SEQUENCE AND INDICATION PROCEDURE FOR DIAGNOSTIC SERVICE TEST PROGRAM FAULT CODES DISPLAY FAULT DIAGNOSIS ACTIVE TEST PROGRAM CONTROL BOARD TEST POINTS 4-5 6 7 8 - 11 12 13 14 14 - 15 16 17 - 18 19 20
WHIRLPOOL CONSUMER SERVICES
TECHNICAL DATA Dimensions
Height Width Depth Mass 85.0 60.0 59.2 58.0 mm mm mm kg
Model 6ADP962/3 IXM
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Electrical Data
Base Data Voltage Frequency Total power Fuse 230 - 240 50 2.4 10 V Hz kW A
Decor Plate
Thickness (Max) Width Height Mass (Max) 4 583 595 1.8 mm mm mm kg
Motors
Spray Pump Motor Voltage Power consumption. HI (in series with cap) HA Capacitor Drain Pump Motor Voltage Input Resistance 230 - 240 ~160 81 44 4 230 - 240 30 146 V W · · µF V W ·
Electronic Circuit Boards
Service Boards Serial Boards UB DB CB Dataset See Spare Parts 4619 720 86181 4619 720 78871 097662 097652
Programs
Programs Succession See Program Chart 1a-3b-4b-6d-6b-7a
Water Pressure/Temperature
Inlet pressure, min. max. Spray pump pressure Hot Connection 30 1400 40 60 kPa kPa kPa °C max
Alarms
Rinse aid refill
Flow rates / Inlet volume
Flow meter calibration (at 30 kPa pressure and 1.1 Iitres per min) Spray pump Drain pump Pump height, max. Inlet valve Zone washing valve Spray arm lower Spray arm upper Ceiling rotor 208 Impulses/Iitre I/min I/min m I/min l/min I/min I/min l/min
Options
Zone Washing Delay function
Program Indication
Start indicator Pre wash Main wash Drying End
~70 16 1.1 4.5 30 33 27 10
WHIRLPOOL CONSUMER SERVICES
TECHNICAL DATA (Cont.) Heating
Voltage Power consumption Resistance Heating rate Temperature on surface Double safety element cut-out, self resetting 230 - 240 V 2.22 kW 25 · 2 ºC/min ~115 ºC 85 ºC
Model 6ADP962/3 IXM
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Water Quantities and Levels
Measuring Water Level Remove the coarse sieve, place end of a ruler in the bottom of the sump to measure the depth of the water. Water Quantities (Normal Program (6a))
Water Valves
Single Valve at Inlet Hose Voltage 230 - 240 Frequency 50 - 60 Resistance 3.8 Zone Washing Valve Voltage 230 - 240 Frequency 50 - 60 Resistance 4.0 Dispenser Coil Voltage Frequency Resistance Reed Contact Flow meter Rinse aid control NTC 15 ºC 20 ºC 30 ºC 40 ºC 50 ºC 60 ºC 70 ºC 80 ºC 85 ºC 75 62 43 28 19 13 9 6 5 k· k· k· k· k· k· k· k· k· 230 - 240 50 - 60 2.0 V Hz k· V Hz k· V Hz k·
Back Rinse (x3) Prewash Prewash/Zone wash Main Wash Main wash/ Zone washing Intermediate rinse1 Intermediate rinse1/ Zone washing Intermediate rinse2 Intermediate rinse2/ Zone washing Clear rinse Clear rinse/ Zone washing Safety / Overflow Detergent max. Pre-wash Main-wash Rinse aid 6 Dosage steps Operating Speeds Spray pump motor Drain pump motor Spray arm, lower Spray arm, middle Spray arm, upper
1.0 litre 4.8 litres 4.0 litres 4.5 litres 4.0 litres 4.0 litres 3.5 litres 4.0 litres 3.5 litres 4.0 litres 3.5 litres 8.5 litres
68mm 122mm 120mm 121mm 117mm 120mm 117mm 120mm 117mm 120mm 117mm 141mm
10 45 125 1-6
cm 3 cm 3 cm 3 cm
3
2800 3000 20 - 40 25 - 35 45 - 65
rpm rpm rpm rpm rpm
WHIRLPOOL CONSUMER SERVICES
EXPLODED VIEW - CABINET
Model 6ADP962/3 IXM
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WHIRLPOOL CONSUMER SERVICES
Model 6ADP962/3 IXM
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EXPLODED VIEW - DOOR AND CONTROL PANEL
WHIRLPOOL CONSUMER SERVICES
SPARE PARTS LIST
Item 003 0 004 0 004 1 011 0 022 0 022 1 022 2 024 0 030 0 034 0 034 1 040 1 040 2 044 0 044 1 047 0 047 1 047 2 053 0 061 0 103 0 120 0 120 1 130 0 131 0 175 0 175 1 175 2 191 0 192 0 241 0 241 1 241 2 241 3 241 4 241 4 241 5 241 5 241 6 241 6 241 7 241 7 241 8 242 0 242 0 Part No 4812 440 19594 4812 440 18952 4812 401 18402 4812 505 18357 4812 440 19579 4812 440 19578 4812 440 18953 4812 440 19463 4819 310 18598 4812 404 78237 4812 404 78297 4812 417 18774 4812 417 18773 4812 492 38358 4812 492 38364 4812 404 48591 4812 401 18397 4812 404 68023 4812 440 88889 4812 466 88455 4812 440 19453 4812 440 19456 4812 440 18969 4812 417 58361 4812 401 18416 4812 310 18309 4812 310 18308 4812 310 18311 4812 466 68564 4812 466 68467 4812 458 18912 4812 458 18324 4812 535 78036 4812 528 88068 4812 458 18288 4812 458 18984 4812 458 18921 4812 535 78043 4812 458 18333 4812 458 18979 4812 404 48639 4812 404 48683 4812 466 68553 4812 458 18923 4812 458 18974 Description Traverse, over kickplate Drip tray assy Holder Foot short Side panel, left, Black Side panel, right, Black Spacer Panel, rear Table top kit, Black Spacer Fastener Hinge left Hinge right Spring for door Spring for cap Brake for door Band, brake Hook Plinth, Black Counter weight Door outer, Black Door, inner Batten (behind kickplate) Door lock, complete Hook lock Door trim, ornamental, left, Black Door trim, ornamental, right, Black Door trim, ornamental, lower, Black Gasket door Gasket, door, lower Basket, upper Holder cups right wh Bearing upper basket to Wk 00/01 Wheel, basket upper (set) Cutlery basket WH to Wk 00/01 Holder dishes from Wk 00/01 Bearing to Wk 00/01 Bearing from Wk 00/01 Holder glasses to Wk 00/01 Holder glasses from Wk 00/01 Hoop to Wk 00/01 Hoop from Wk 00/01 Spacer cap set Basket lower complete to Wk 00/01 Basket lower complete from Wk 00/01
Model 6ADP962/3 IXM
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WHIRLPOOL CONSUMER SERVICES
SPARE PARTS LIST (Cont.)
Item 242 1 242 2 242 3 242 4 242 6 242 7 243 0 243 0 243 4 261 0 261 1 261 2 263 0 263 1 265 0 265 2 301 0 303 1 305 0 322 0 322 1 331 0 332 0 350 0 400 0 405 0 405 1 420 0 421 0 430 0 430 1 450 0 480 0 480 1 480 2 480 3 490 0 490 1 521 0 571 3 583 0 616 1 620 0 623 0 633 0 Part No 4812 528 88069 4812 458 18262 4812 458 18275 4812 466 48059 4812 458 18977 4812 458 18978 4812 458 18272 4819 310 39859 4812 458 18317 4819 462 38271 4819 404 48819 4812 462 78995 4819 520 18013 4812 520 48001 4812 404 48637 4812 404 48638 4812 453 70054 4812 460 38056 4812 440 18973 4812 453 70604 4812 440 19468 4812 413 58935 4812 410 28569 4819 310 39832 4812 361 58126 4812 360 18371 4819 515 28158 4812 121 18132 4812 121 18161 4812 360 18357 4812 466 68506 4812 259 28684 4812 321 28386 4812 321 28371 4812 321 28383 4812 401 18418 4812 321 18051 4812 321 28367 4812 214 78239 4812 281 28374 4812 271 28407 4812 271 58161 4812 218 38137 4812 271 38356 4812 271 38355
Model 6ADP962/3 IXM
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Description Wheel, basket lower Plate, support for lower basket to Wk 00/01 Plate, support for lower basket to Wk 00/01 Lower basket stop Support plate left from Wk 00/01 Support plate right from Wk 00/01 Basket cutlery Cutlery basket KIT Bracket Rail telescope, inner Cap rail rear Cap rail front Ball cage complete Ball Niro 8 D Basket adjustment mechanism, complete Grip basket adjustment Control panel, Black Plate, handle, Black Batten, below control panel, Black Insert, control panel, Black Sticker, Multizone, blue Knob, program, complete, Black Push button cap, Black Display board (DB) Motor and spray pump complete Spray pump Gasket Capacitor Interference filter Pump, draining Shaft seal Heating element Cable harness set Cable Cable 6poles Protector for wiring Cable, mains Strain relief Control board (CB) Valve for zone-washing Switch diaphragm Contact, reed rinsing agent User board (UB) Microswitch Microswitch door
WHIRLPOOL CONSUMER SERVICES
SPARE PARTS LIST (Cont.)
Item 680 0 680 1 681 1 681 2 682 0 691 0 700 0 700 0 700 1 700 2 701 1 710 2 710 3 714 0 714 2 716 0 716 1 716 2 721 1 721 2 721 3 721 4 722 0 722 2 723 0 723 1 726 0 726 1 726 2 726 3 726 4 743 0 743 1 743 3 743 4 743 7 751 0 751 1 755 0 755 2 756 0 761 0 761 2 762 0 763 0 Part No 4812 418 68155 4812 466 68495 4812 466 68497 4812 440 18975 4812 466 68496 4812 282 68012 4812 530 28804 4812 530 28848 4812 480 48019 4812 520 58002 4812 310 18153 4819 310 38536 4819 466 69562 4812 462 78012 4812 440 18963 4812 418 68142 4812 466 68475 4812 462 78994 4812 360 68061 4812 466 68491 4812 466 68558 4812 440 19455 4812 360 68044 4812 360 68056 4812 360 68049 4819 310 39831 4812 530 28786 4812 530 28787 4812 505 18358 4812 466 68512 4812 462 79633 4812 511 48171 4812 530 28102 4812 505 18364 4812 530 28807 4812 466 68514 4812 418 18205 4819 310 39826 4812 530 28849 4812 530 48148 4812 360 58099 4812 480 58082 4812 418 18204 4812 480 58084 4812 480 58083
Model 6ADP962/3 IXM
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Description Combidosage Gasket, combidosage Gasket, rinse aid Flap, combidosage Gasket, detergent flap, combidosage Sensor, NTC Hose, inlet aqua stop 4,2m Hose, inlet aqua stop 2m Sieve Gasket set Yoke clamp set Threaded ring Gasket set, salt container blank Threaded cap, salt container blank Drain hose fitting, non-return flap Reg. dosage (Air break) Gasket, cover (Item 716 2) Cover Spray arm lower, complete Gasket 25x2,3B Gasket 30x3,0 Flange, to sump Spray arm upper Hub upper straight complete Spray arm ceiling Kit, ceiling spray arm bearing Tube to centre spray arm Tube to ceiling spray arm Nut, docking station Gasket, docking station Guide, docking station Condenser, steam Hose, hinge drain to pan Nut, condenser Hose (condenser to sump) 9x1,5x270+10 Gasket for nut, Item 743 3 Sump Sump top ring Bend, heater to sump Hinge, leak collector Safety float switch assembly Sieve fine Cover sieve Microfilter Sieve coarse
WHIRLPOOL CONSUMER SERVICES
SPARE PARTS LIST (Cont.)
Item 781 0 781 1 781 2 781 3 783 1 783 5 783 6 791 0 791 4 791 5 794 1 901 0 901 1 901 2 901 5 901 7 904 2 904 3 904 4 910 0 910 1 910 2 910 3 910 4 910 5 910 7 911 0 964 0 964 1 993 0 Part No 4812 530 28737 4819 530 28286 4819 492 68405 4812 281 28364 4812 530 28806 4812 530 28851 4812 530 28824 4812 532 68067 4812 466 68503 4812 466 68504 4819 530 58032 4822 401 10492 4812 401 18424 4812 401 18157 4812 401 48573 4812 401 18427 4812 462 79657 4812 462 79637 4812 462 79659 4812 502 18384 4812 502 18394 4812 502 18363 4812 502 18389 4812 502 18386 4812 502 18393 4812 502 18397 4812 502 38149 4812 466 68536 4812 466 68469 4819 530 29028 Description Hose, drain Sleeve, drain hose Clip for non-return valve Flap non-return Hose connection, zone wash valve Distributor hose, zone wash valve Hose 10,3X3X245 Gasket, sump Gasket, pressure switch Gasket, sensor (NTC) Gasket 20x2,5, drain hose Clamp, hose 14-24 mm Hose clamp, 050,0 Hose clamp, 32-50/9 C61 Hose clamp, 028,6 Hose clamp, 031,6 Screw cover, Black, 3,5x5 Screw cover, Black, 3,5x4 Threaded cap Screw 4x35-H Screw 3,5x14-H Screw 4,0x12-H Screw, Black A2 Screw 3,5x8-TORX T15 Screw 3,5x9-1 Tx15 Screw, stainless steel A2 M 5X12 Screw ST3,5x9,5-C-H Gasket door right and left Gasket door upper Bow, drain hose
Model 6ADP962/3 IXM
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WHIRLPOOL CONSUMER SERVICES
PROGRAM CHART
Program Sequence : 1a - 3b - 4b - 6d - 6b - 7a
Model 6ADP962/3 IXM
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CIRCUIT DIAGRAM
WHIRLPOOL CONSUMER SERVICES
C1 Capacitor CB Control board DB Display board DUB Display and User board DLB Timer switch Delay DPM Drain pump Motor DO Cleaning agent dosage DR Final rinse dosage DS Door switch FM Flow meter HEWI Heating IF Interference filter L.S6 Water leakage switdl L Line MS Main switch NTC Thermostat temp. sensor N Neutral RE2 Heating relay RR RA Reed relay rinse aid SPM Spray pump motor THS1 Safety thermostat THS 2 Fuse TBL Power supply terminal TL Winding protective contact UB User board VvV1 Water inlet valve WI Water indicator ZW Zone washing
00 black 66 blue 08 grey 99 white
Model 6ADP962/3 IXM
Connector Rast 2.5 on CB: red marking: left hand side black marking: right hand side
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WHIRLPOOL CONSUMER SERVICES
Program Sequence and Indication
LED No. 1 (PS1) Rinse LED No.2 (PS2) Wash LED No. 3 (PS3) Dry LED No. 4 (PS4) End
Model 6ADP962/3 IXM
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Flushing Pre-wash Main wash Intermediate rinse Final rinse Drying (Passive) Extinguishes if any button is pressed - or Extinguishes after 30 minutes
Procedure for Diagnostic Service Test Program
1. Start the passive test program. (See Page 14). If there is a defective component indicated, open the plinth and take out the control board (CB). Check the component. Unplug the indicated component from the control board and check with a multi-meter. If resistance is comparable with the data sheet check cabling and connections and examine component. Check control board. Dishwasher components are controlled via electronic devices. As a result, when checking component control board output voltages, the component connector must be connected to the control board to load the electronic device. If the dishwasher appears totally dead, perform test point tests. (See Page 19). After completion of any repair, run the test program again to confirm repairs have been effective. The first step with test the program of the new service control boards is without backrinsing. Therefore if the machine contains any water at the start of the test there is a risk of overflow. F1 : NTC failure F2 : Water leakage F9 : Continuous water inlet will cause the diagnostic program to terminate, so these failures must be repaired before it is possible to continue with the test. Indicated failures
2.
3.
4. 5.
NOTE 1 :
NOTE 2 :
Once a wash program has been started it cannot be altered but must be cancelled by holding the start button for more than 3 seconds. As the components are controlled by electronic devices, meaningful output voltage measurements from the control board can only be made with the component connected. Do not attempt to measure open circuit voltage output from the control board.
WHIRLPOOL CONSUMER SERVICES
Model 6ADP962/3 IXM
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Wash Program Indicators Rinse
Rinse Aid
PS1 PS2 PS3 PS4 Program Selector
Start
Failure NTC failure Water leakage Heating system Drain system Water inlet closed Flow meter Water level Continuous water fill Rinse aid low
Failure No. F1 F2 F3 F4 F6 F7 F8 F9
Indication Start LED flashes Start LED flashes Start LED flashes Start LED flashes Start LED flashes Start LED flashes Start LED flashes Start LED flashes Red LED on
Test Program Indication PS1 LED Flashes PS2 LED Flashes PS3 LED Flashes PS4 LED Flashes PS2 & PS4 LED's Flash PS3 & PS4 LED's Flash PS2 & PS3 LED's Flash PS1 & PS3 LED's Flash Red LED on
NOTE: The machine will not store Fault Code F6 located during normal operation, only during the active test. Therefore the active test MUST be run for the diagnostics to locate this fault. All Other Fault codes located during normal operation are stored by the machine and will be displayed by the passive test.
Passive Test Program
Start Passive test program will indicate the mode of failure. If there is no failure, the test program will result in PS1 to PS4 flashing sequentially. Starting the Passive Test Program 1. Turn the program selector to the off ("O") position 2. Chosen program LED lights 3. 4. Finish passive test program by starting active test program Push and hold the start button while turning the program selector to first cycle (rinse) until the START LED begins to flash. Release the start button. The LED's, PS1 to PS4, will now flash in sequence or light to indicate the mode of failure of the dishwasher. Repair failure Reset program by pressing start button for more than 3 seconds Start passive test again and progress to active test by pressing the start button for less than 3 seconds
PS1 - PS4 Flash sequentially
5. 6. 7.
WHIRLPOOL CONSUMER SERVICES
FAULT CODES DISPLAY
Failure F1 NTC Fault F2 Water Leakage F3 Heating System Failure F4 Draining Failure F5 Spray Arm Blocked F6 Water Control Cock Closed Indication to Customer
START
Model 6ADP962/3 IXM
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Passive/Active Test Program Indication
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
Note: This fault is not stored during normal operation. It is only displayed after the Active Test Program is run.
PS1 PS2 PS3 PS4
START
F7 Flow Meter Failure F8 Water Level Failure F9 Water Inlet Valve Open Continuously
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
PS1 PS2 PS3 PS4
START
LED Flashing LED Off
WHIRLPOOL CONSUMER SERVICES
Fault Diagnosis
F1
Model 6ADP962/3 IXM
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NTC (Negative Temperature Co-efficient of Resistance) Device - Temperature is outside normal range -3°C to +85°C - Temperature inside the wash chamber is over +85°C - The device is either open circuit or short circuit.
F2
Water Leakage Water is in drip tray - Float switch (LS6) operates, closes the water inlet valve and turns on the drain pump until the water Indicator (WI) reports empty.
F3
Heating System Defective Indicated after approximately 11 minutes of heating operation. - Element (HEW) defective - Relay (RE2) on control board is defective - NTC resistance fluctuation - Water indicator (WI) defective (open-circuit) - Spray pump is not working
F4
Draining Failure Drain pump energised and after four minutes Water Indicator (WI) still detects water. - Drain pump (DPM) defective - Drain hose blocked - Control board defective - Water Indicator defective (Pressure switch contacts remain closed)
F5
Spray Arm Blocked. (Fault does not cause dishwasher to stop) SAB sensor sends less than 10 pulses/minute. - SAB sensor defective - Spray arm blocked or not located correctly - Spray pump motor inefficient (insufficient water flow through pump.
F6
Water Control Cock Closed Water valve (WV1) is energised but flow meter (FM) sends no impulses to CPU (less than 10 impulses in 10 seconds) and the water indicator is at low level. - Water inlet control cock closed - Water inlet hose blocked or kinked - Water inlet valve (WV1) blocked or defective - Flow Meter (FM) or connecting leads defective
WHIRLPOOL CONSUMER SERVICES
F7 Water Flow Meter Failure
Model 6ADP962/3 IXM
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Water inlet valve is energised and the water indicator is switched to high level. - Flow meter (FM) sends no impulses to CPU (less than 10 impulses in 10 seconds). - Water inlet control cock closed - Water inlet hose blocked or kinked - Water inlet valve (WV1) blocked or defective - Flow Meter (FM) defective - Water indicator defective F8 Water Level Failure Spray pump motor is energised and water indicator switches to low level more than 20 times in two minutes. - Water indicator defective (switch should operate when machine contains approximately one litre of water) - Sieve blocked - Severe foaming - Item in wash load has turned over and filled with wash water - Spray pump pressure unstable F9 Continuous Water Inlet Water Inlet valve is switched off but water indicator is switched to high level and flow meter sends more than ten impulses to CPU in ten seconds. - Water inlet valve defective - Electronic control device for inlet valve failed
WHIRLPOOL CONSUMER SERVICES
Active Test Program
Model 6ADP962/3 IXM
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Start the active test procedure by first running the passive test then press the start button for less than three seconds. Operation Start Backrinsing (only after second run of test program Fill and pump at the same time (flushing) three times, 15 seconds each time Function Notes : When the machine detects a fault during normal operation the start light will begin to flash and the cycle may or may not stop. When the control knob is turned to zero the fault is stored (except Fault Code F6) and the fault code will be displayed when the passive test is run. For the diagnostics to locate fault code F6, the active test procedure MUST be followed. The active test programs runs for approximately 21 minutes or, if the heat cycle is bypassed the test runs for approximately 3 minutes and 45 seconds. The active test program runs to the point of failure then stops. If there is no failure the test programs runs to the end.
Filling
Fills, spray pump starts & continues to fill. Fill stops, pump stops for 3 sec.
Washing
Detergent dispenser operates, pump restarts, 5 sec delay then heating starts
The failure position is indicated by the flashing START LED extinguishing. To exit the test program, press the START button for more than three seconds.
Water heated to 65°C Pumpout 30 sec delay Pumpout
An empty rinse aid container will not cause the test program to stop, only illuminate the red LED.
End
PS4 LED on
WHIRLPOOL CONSUMER SERVICES
Control Board Test Points
Model 6ADP962/3 IXM
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A pair of long, wire claw type probes are required to access the test points. Checking voltages at the test points will determine the correct operation of the function push buttons and the rotary switch. Before attaching test probes to the control board test points which are accessed via the control board service window, disconnect the dishwasher from the supply. Short circuiting of any of the electronic components will cause the control board to fail. Test Points : T0 = Common T1 = Analogue voltage Service Window T0 T3 T2 T1 T2 = Analogue voltage T3 = Digital signal
Control Board A voltmeter with a high input impedance is required to measure the control board voltages. The degree of agreement between the measured voltage and the nominated voltage will be dependent on the accuracy of the voltmeter. Test Point T0 to T1 Communication between control board and display board Operated Push Button All off ZW (1 or both LED's) Delay ZW and Delay Voltage (V dc) -5.24 -3.43 -2.88 -2.88
Test Point T0 to T2 Communication between control board and user board Rotary Switch O Cycle 1 Cycle 2 Cycle 3 Cycle 4 Cycle 5 Cycle 6 Voltage (V dc) 0.00 -1.32 -1.75 -2.20 -2.90 -3.36 -3.80
Test Point T0 to T3 Communication between control board and display board Start button out (LED off) Start button in (LED on) -5.24 V dc -3.87 V dc