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Electrolux GLMV169DB, Service Manual

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Electrolux GLMV169DB Service Manual Download Page 22

20

   GLMV169DB
   GLMV169DQ

   GLMV169DS
   PLMV169DC

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

6) Re-install the outer case (cabinet).
7) Reconnect the power supply cord after the outer case is installed.
8) Run the oven and check all functions.

2. Control Unit.

The following symptoms  indicate a defective control unit.  Before replacing the control unit, perform
the Key unit test (Procedure M) to determine if control unit is faulty.

2-1 In connection with pads.

a) When touching the pads, a certain group of pads do not produce a signal.
b) When touching the pads, no pads produce a signal.

2-2 In connection with indicators

a) At a certain digit, all or some segments do not light up.
b) At a certain digit, brightness is low.
c) Only one indicator does not light.
d) The corresponding segments of all digits do not light up; or they continue to light up.
e) Wrong figure appears.
 f) A certain group of indicators do not light up.
g) The figure of all digits flicker.

2-3 Other possible problems caused by defective control unit.

a) Buzzer does not sound or continues to sound.
b) Clock does not operate properly.
c) Cooking is not possible.

When testing is completed,

1) Disconnect the power supply cord, and then remove outer case.
2) Open the door and block it open.
3) Discharge high voltage capacitor.
4) Reconnect all leads removed from components during testing.
5) Re-install the outer case (cabinet).
6) Reconnect the power supply cord after the outer case is installed.
7) Run the oven and check all functions.

1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable

is making good contact, verify that the door sensing switch (stop switch) operates properly; that is the
contacts are closed when the door is closed and open when the door is open. If the door sensing switch
(stop switch) is good, disconnect the flat ribbon cable that connects the key unit to the control unit and
make sure the door sensing switch is closed (either close the door or short the door sensing switch
connecter). Use the Key unit matrix indicated on the control panel schematic and place a jumper wire
between the pins that correspond to the STOP/CLEAR pad making momentary contact. If the control
unit responds by clearing with a beep the key unit is faulty and must be replaced. If the control unit does
not respond, it is faulty and must be replaced. If a specific pad does not respond, the above method
may be used (after clearing the control unit) to determine if the control unit or key pad is at fault.

5. Reconnect all leads removed from components during testing.
6. Re-install the outer case (cabinet).
7. Reconnect the power supply cord

after the outer case is installed.

8. Run the oven and check all

functions.

L

KEY UNIT TEST

G5

5

0

4

9

3

8

2

7

1

6

G6

Auto

Defrost

Night

Light

Clear

Off

Fresh

Veggie

Work

Light

Power

Level

Plus

1 Min

Popcorn

Fan

HI / LO

Turntable

On / Off

Help

Dinner

Items

Lunch

Items

Clock

G7

G8

G9

G10

G11

G12

G13

G1

G2

G3

G4

Timer /

Pause

START

Auto

Fan

Frozen

Snacks

Frozen

Entrees

Breakfast

Items

Poultry

Beverage

Fish

Frozen
Veggie

Speed

Defrost

Baked
Potato

Memory

Cook

Sensor
Reheat

Rice

Ground

Meats

Summary of Contents for GLMV169DB

Page 1: ... MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORDANDWARNING 3 PRODUCTSPECIFICATIONS 4 GENERAL INFORMATION 4 OPERATION 7 TROUBLESHOOTINGGUIDE 12 TESTPROCEDURE 14 TOUCH CONTROL PANEL ASSEMBLY 26 COMPONENTREPLACEMENTANDADJUSTMENTPROCEDURE 32 PICTORIALDIAGRAM 40 POWERUNITCIRCUIT 41 LSI UNIT CIRCUIT 42 PRINTEDWIRINGBOARD 43 PARTS LIST revised 44 PACKING AND ACCESSORIES 48 S54M238V169DE GLMV169DB GLMV169DQ GL...

Page 2: ...e generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner RD2110U RD8100U BEFORE SERVICING Before servicing an operative unit perform a microwave emiss...

Page 3: ...high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure reconnect the power supply cord When the testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage ca...

Page 4: ... in the center of the oven cavity The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically nonconductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also to insure that any leakage is measured accurately 4 Set the cooking control on F...

Page 5: ... defective C The door packing is not damaged D The door is not deformed or warped E There is not any other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service personnel Do not contact the following parts while the ...

Page 6: ...r P 30 approx 30 of Full Power P 20 approx 20 of Full Power P 10 approx 10 of Full Power P 0 No power throughout the cooking time SENSOR COOKING pads DEFROST pads ONE TOUCH COOKING pads Memory Cook pad Number selection pads Power Level pad Timer Pause pad Clock pad Auto Fan Plus 1 Miute pad Turntable On Off pad START pad Work Light pad Night Light pad FAN HI LO pad Clear Off pad Oven Cavity Light ...

Page 7: ...n door with see through window 2 Door hinges 3 Stirrer cover 4 Turntable motor shaft 5 Oven lamp It will light when oven is operating or door is open 6 Door latches The oven will not operate unless the door is securely closed 7 Auto Touch control panel 8 Time display Digital display 99 minutes 99 seconds 9 Ventilation openings 10 Light Cover 11 Grease filters 12 Removable turntable The turntable w...

Page 8: ...6 GLMV169DB GLMV169DQ GLMV169DS PLMV169DC CONTROL PANEL GLMV169DB GLMV169DQ GLMV169DS PLMV169DC Colors will vary ...

Page 9: ... circuits to the stirrer motor the cooling fan motor the turntable motor and the high voltage components are de energized and the digital read out displays the time still remaining in the cook cycle when the door was opened 7 Themonitorswitchiselectricallymonitoringtheoperation of the primary interlock switch and door sensing switch is mechanically associated with the door so that it will function...

Page 10: ... RY2 and RY3 are energized turning on the oven lamp turntable motor cooling fan motor and convection motor The power supply voltage is applied to the heating element 4 Now the oven is in the microwave cooking mode COMPU DEFROST COOKING The COMPU DEFROST key is a special function key to defrost meats and poultry faster and better COMPU DEFROST automatically defrosts roast beef etc Touch theCOMPUCOO...

Page 11: ... first stage do not open the door or touch STOP CLEAR pad 4 When the sensor detects the vapor emitted from the food the display switches over to the remaining cooking time and the timer counts down to zero At this time the door may be opened to stir food turn it or season etc 5 When the timer reaches zero an audible signal sounds The shut off relay and cook relay are de energized and the power tra...

Page 12: ...WHT HIGH VOLTAGE CAPACITOR COM BLU MONITOR SWITCH HIGH VOLTAGE RECTIFIER STOP E2 E1 GRN BLK SWITCH F3 F2 F1 HUMIDITY SENSOR RED BLK BLK FUSE C T ORG C1 BLK RED BLK WHT WHT SECONDARY INTERLOCK RELAY TURN TABLE MOTOR RELAY TABLE TURN MOTOR STIRRER MOTOR BLU YLW RED RY3 RY4 RY5 A7 WHT SWITCH INTERLOCK PRIMARY BLU RED HOOD NC BLK WHT CUT OUT THERMAL HOOD FAN BLK YLW RED BLK A9 CAPACITOR A3 CONTROL UNI...

Page 13: ...hase double pole induction type requiring a hood fan capacitor It is located outside the upper rear part of the oven cavity is to remove from around the oven hot air rising from the conventional electric or gas range over which it is installed This air is then expelled either vertically or horizontally through the customer supplied duct system or discharged back into the kitchen STIRRER MOTOR Figu...

Page 14: ...y cord after the outer case has been removed in this event 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that the leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure reconnect the power ...

Page 15: ...e Turntable motor does not operate Oven lamp lights and fan motor operate Oven does not go into cook cycle when START pad is touched Oven seems to be operating but little or no heat is produced in oven load Food incompletely cooked or not cooked at all at end of cook cycle Oven goes into a cook cycle but extremely uneven heating is produced in oven load food Variable cooking does not operate prope...

Page 16: ...he temperature stabilizes Record the temperature of the water 2 Place the cup of water in the oven Operate oven at POWER 10 HIGH selecting more than 60 seconds cook time Allow the water to heat for 60 seconds measuring with a stop watch second hand of a watch or the digital read out countdown 3 Remove the cup from the oven and again measure the temperature making sure to stir the thermometer or th...

Page 17: ...f control unit Check for restricted air flow through the vent holes of the oven cavity especially the cooling fan and air guide 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions C HIGH VOLTAGE RECTIFIER TEST 1 Disconnect the power supply cord and ...

Page 18: ...r is closed the cooling fan motor stirrer motor and oven light will be activated by RY1 SECONDARYINTERLOCKRELAY RY2 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnecttwo 2 wireleadsfromthemaletabterminalsoftheSecondaryInterlockRelay Checkthe state of the relay contacts using a ohmmeter The relay contacts s...

Page 19: ...ay be defective Aftertestingthemonitorswitch reconnectthewireleadtothemonitorswitch COM terminal and check the continuity of the monitor circuit 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions of the oven cavity with the door opened in this cond...

Page 20: ...ll leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions J HOOD FAN MOTOR TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 If the motor does not turn touch the FAN HI LO pad once...

Page 21: ...ry of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure re connect the power supply cord 1 Key Unit NOTE 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Check key unit ribbon connection before replacement 5 Reconne...

Page 22: ...ord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 If the display fails to clear when the STOP CLEAR pad is depressed first verify the flat ribbon cable is making good contact verify that the door sensing switch stop switch operates properly that is the contactsareclosedwhenthedoorisclosedandopenwhenthedoorisopen Ifthedoorsensingswitch stop switch...

Page 23: ... RY4 Approx 24 0V D C Hood motor RY5 Approx 24 0V D C Hood motor HIGH LOW selection 8 Disconnect the power supply cord and then remove outer case 9 Open the door and block it open 10 Discharge high voltage capacitor 11 Reconnect all leads removed from components during testing 12 Re install the outer case cabinet 13 Reconnect the power supply cord after the outer case is installed 14 Run the oven ...

Page 24: ... cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure re connect the power supply cord 7 Follow the troubleshooting guide given below for repair STEPS OCCURRENC...

Page 25: ...tray in the oven cavity 3 Close the door 4 Touch Sensor reheat pad once and touch the Start pad Now the oven is in the sensor cooking condition and SENSOR REHEAT and COOK will appear in the display 5 The oven will operate for the first 16 seconds without generating microwave energy NOTE ERROR will appear if the door is opened or Clear Off pad is touched during first stage of sensor cooking 6 After...

Page 26: ...After approximately 32 seconds push plunger of select switch for more than 3 seconds This condition is same as judgement by AH sensor 9 4 After approximately 3 seconds the display shows X X X X which is the remaining cooking time and the display count down If the above is not the case the control unit is probably defective If the above is proper the AH sensor is probably defective 10 Disconnect th...

Page 27: ...CATION OF OHM METER Between N and H Open Circuit Between terminal N and GRY Short Circuit Between terminal H and RED Short Circuit If incorrect readings are obtained replace the noise filter 6 Reconnect all leads removed from components during testing 7 Re install the outer case cabinet 8 Reconnect the power supply cord after the outer case is installed 9 Run the oven and check all functions P NOI...

Page 28: ...ched a signal is completed through the key unit and passed back to the LSI through P41 P42 AN8 AN9 AN10 and AN11 to perform the function that was requested ControlUnit Control unit consists of LSI power source circuit synchro nizing signal circuit ACL circuit buzzer circuit relay circuit indicator circuit and back light circuit 1 LSI ThisLSIcontrolsthekeystrobesignal relaydrivingsignal for oven fu...

Page 29: ...T Key strobe signal Signal applied to touch key section A pulse signal is input to AN9 AN10 AN11 P41 and P42 terminal while one of G4 line keys on key matrix is touched 9 P15 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to AN9 AN10 AN11 P41 and P42 terminal while one of G3 line keys on key matrix is touched 10 P16 OUT Key strobe signal Signal applied to touch k...

Page 30: ...el During Hood lamp OFF 28 P31 OUT Turntable motor driving signal To turn on and off relay RY3 L level During Turntable ON H level During Turntable OFF or during the oven is off condition 29 P32 P37 OUT Terminal not used 30 34 P33 P37 OUT Used for initial balancing of the bridge circuit absolute humidity sensor 35 CVCC IN Connected to GND 36 VSS IN Power source voltage 5V The power source voltage ...

Page 31: ...r circuit and connected to the A D converter built into the LSI 92 AN0 AN1 IN AH sensor input This input is an analog input terminal from the AH sensor circuit and connected to the A D converter built into the LSI 93 AN2 IN To input signal which communicates the door open close information to LSI Door closed H level signal 0V Door opened L level signal 5V 94 AN3 IN Terminal not used 95 98 AN4 AN7 ...

Page 32: ...ermistors as shown in the illustration One thermistor is housed in the closed vessel filled with dry air while another in the open vessel Each sensor is provided with the protective cover made of metal mesh to be protected from the external airflow 2 Operational Principle of Absolute Humidity Sensor Thefigurebelowshowsthebasicstructureofanabsolute humidity sensor A bridge circuit is formed by two ...

Page 33: ... supply cord between the touch control panel and the oven itself is so short that the two can t be separated For those models check and repair all the controls sensor related ones included of the touch control panel while keeping it connected to the oven B On some models the power supply cord between the touch control panel and the oven proper is long enough that they may be separated from each ot...

Page 34: ...ctive parts in the door interlock system 6 There are defective parts in the microwave generating and transmission assembly 7 There is visible damage to the oven Do not operate the oven 1 Without the RF gasket Magnetron 2 If the wave guide or oven cavity are not intact 3 If the door is not closed 4 If the outer case cabinet is not fitted 3 Sharp edge Bottom plate Oven cavity Waveguide flange Chassi...

Page 35: ...etheovenfrom wall and remove outer case Refer to procedure of RemovalofOvenfromWall and OuterCaseRemoval And proceed as follows 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove one 1 screw holding the hood duct to the oven cavity front flange 5 Disconnect the stop switch harness from the chassis supportanddisconnectthewireleadsfromthefanmotor 6 Lift up the fan motor si...

Page 36: ...trontowaveguide Whenremovingthescrewshold the magnetron to prevent it from falling 11 Remove the magnetron from the unit with care so the magnetron tube should not be hit by any metal object around the tube 12 Removetheone 1 screwholdingthemagnetronairguide to the magnetron 13 Remove the magnetron air guide CAUTION WHEN REPLACING THE MAGNETRON BE SURE THE R F GASKET IS IN PLACE AND MOUNTING SCREWS...

Page 37: ...ng the fan blade with your hand THERMAL CUT OUT CAVITY REMOVAL 1 Disconnect the power supply cord and remove the oven from wall and remove outer case Refer to procedure of RemovalofOvenfromWall and OutercaseRemoval 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove two 2 unit mounting screws 5 Removethehoodduct Refertotheprocedureof HOOD FANMOTOR HOODDUCTANDOVENLAMPSOCKE...

Page 38: ...t the stirrer fan on the stirrer cover to match the stirrer fan shaft to the center of the stirrer support 2 Insert the shaft of stirrer fan to the shaft of stirrer motor 3 Insert the cutout of stirrer cover to the tabs on the ceiling 4 Installthestirrercovertotheovencavity andsecureitby one canoe clip STIRRER COVER AND STIRRER FAN INSTALLATION 1 Disconnect the power supply cord 2 Removethree 3 sc...

Page 39: ...emovalofOvenfromWall and OutercaseRemoval 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove the control panel assembly referring to the procedure of CONTROL PANEL ASSEMBLY CONTROL UNIT AND KEY UNIT REMOVAL 5 Remove the two 2 screws holding the latch hook to the oven cavity front flange 6 Remove the latch hook from the oven cavity front flange 7 Disconnect the wire leads...

Page 40: ...oor hinge pins from the upper and lower oven hinges 9 Now the door assembly is free Note When the individual parts are replaced refer to Door Disassembly DOOR ASSEMBLY RE INSTALL 1 Onre installingdoor insertthelowerovenhingetolower door hinge pin 2 Insert the upper oven hinge to the upper door hinge pin 3 Shut the door close the contacts of interlock switches 4 Make sure upper and lower oven hinge...

Page 41: ...d OutercaseRemoval 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove the hood exhaust louver from the oven cavity by pushing the right and left tabs of the hood exhaust louver Refer to the procedure of HOOD EXHAUST LOUVER REMOVAL 5 Remove door assembly refer to Door Replacement Replacement of door components are as follows 6 Place door assembly on a soft cloth with latc...

Page 42: ...S Blue Marking Blue Marking OVEN LAMP SOCKET to Chassis Support CN E GRY WHT WHT ORG PRIMARY INTERLOCK SWITCH N O N C COM COM MONITOR SWITCH CT FUSE GRN RED N O COM DOOR SENSING SWITCH CN C CN E CN A RY1 N O RY1 COM RY2 N O RY2 COM WHT HOOD FAN MOTOR STIRRER MOTOR 1 2 3 4 5 6 WHT RED YLW BLU BLK WHT RED YLW BLU BLK 1 2 RED GRN 1 2 3 4 5 6 7 YLW ORG BLK RED CN A HOOD FAN THERMAL CUT OUT BLK WHT RED...

Page 43: ...41 GLMV169DB GLMV169DQ GLMV169DS PLMV169DC 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H Figure S 2 Power Unit Circuit ...

Page 44: ...42 GLMV169DB GLMV169DQ GLMV169DS PLMV169DC 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H Figure S 3 LSI Unit Circuit ...

Page 45: ...43 GLMV169DB GLMV169DQ GLMV169DS PLMV169DC 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H Figure S 5 Printed Wiring Board ...

Page 46: ...081MRR0 Schematic diagram 1 AB 23 FANGKB020MRY0 Hood lamp glass assembly 1 AN 24 LANGQB062MRP0 Hood lamp glass angle 1 AG 25 PGLSPB004MRE0 Hood lamp glass 1 AH 26 PCOVPB115MRT0 Base cover 1 AY 27 PCUSUB040MRP0 Base cover cushion 1 AY 28 PCUSGB028MRP0 Cushion 1 AY 29 PCUSUB047MRP0 Mag cushion 1 CONTROLPANELPARTS 30 CPWBFB099MRU0 Control unit 1 BL 31 HPNLCB194MRR0 Control panel sub assembly GLMV169D...

Page 47: ...PB024MRE0 Sealer film 1 AF 73 FHNDPB015MRK0 Door handle PLMV169DC 1 AL 73 JHNDPB049MRF0 Door handle GLMV169DB 1 AL 73 JHNDPB050MRF0 Door handle GLMV169DS 1 73 JHNDPB051MRF0 Door handle GLMV169DQ 1 74 XCPSD40P08000 Screw 4mm x 8mm 4 AA 75 XCPSD40P10000 Screw 4mm x 12mm 2 AA MISCELLANEOUS 76 CFZK B131MRK0 Installation material assembly 1 AM 77 LBSHC0040MRE0 Grommet 1 AC 78 LX BZ0195WRE0 Toggle screw...

Page 48: ...TS 36 10 97 17 21 48 54 22 98 97 99 97 103 14 11 102 15 52 97 101 101 50 8 103 44 8 100 7 8 7 102 19 41 40 38 93 26 2 49 53 93 37 14 11 94 45 99 46 13 47 97 42 58 59 55 43 3 5 6 102 39 4 9 97 97 97 1 97 27 24 25 97 23 91 51 92 57 12 55 102 16 96 103 60 9 90 18 104 104 104 61 62 50 29 20 28 105 105 97 97 106 106 103 103 ...

Page 49: ...DQ GLMV169DS PLMV169DC 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H 74 72 71 56 64 66 70 65 73 74 75 69 67 68 63 76 77 78 79 83 81 82 80 88 89 95 34 97 31 32 33 30 35 CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUS ...

Page 50: ...R x 2 93 INSTALL MATERIAL ASSEMBLY 76 84 85 OPERATION MANUAL WALL TEMPLATE INSTALLATION INSTRUCTION 86 TOP TEMPLATE 87 38 95 TURNTABLE TRAY TOP PAD BOTTOM PAD PACKING CASE ACCESSORY HOLDER WRAP COVER DOOR PAD Non replaceable items DOOR PROTECTOR RACK HOLDER RACK 36 DAMPER ASSEMBLY ...

Page 51: ...49 GLMV169DB GLMV169DQ GLMV169DS PLMV169DC NOTES ...

Page 52: ...ROLUX HOME PRODUCTS INC ALL RIGHTS RESERVED Nopartofthispublicationmaybereproduced stored in retrieval systems or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise withoutpriorwrittenpermissionof thepublisher ELECTROLUX ...

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