Samsung MW7490W Support Question
Samsung MW7490W Support Question
Find answers below for this question about Samsung MW7490W.Need a Samsung MW7490W manual? We have 1 online manual for this item!
Question posted by fehrindj on August 29th, 2012
No Hear
The microwave clock and timer runs fine but will not heat
Current Answers
Related Samsung MW7490W Manual Pages
Service Manual - Page 1
Troubleshooting 7. Precaution 2. Exploded Views and Parts List 8. Schematic Diagrams Specifications 3. Disassembly and Reassembly 5. Alignment and Adjustments 6. Operating Instructions 4. PCB Diagrams 9. MICROWAVE OVEN
MW7490W
SERVICE Manual
MICROWAVE OVEN
SECA
CONTENTS
1.
Service Manual - Page 2
... connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave 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...
Service Manual - Page 3
... health immediatly.
4. Check all solid-state heat sinks are replaced. Examples: Lamp hole, ventilation slots.
9. Instruct owner not to operate the oven and contact the manufacturer and the center for...in protective devices are correctly installed.
15. Although the microwave oven is operative.
3. All repairs should be extremely hazardous due to possible exposure to restore all of...
Service Manual - Page 4
When checking the continuity of the magnetron. High Voltage Warning Do not attempt to the oven chassis. (Use a screwdriver.)
3. If the high voltage exceeds the specified limits, check each of the lead wires ...-related components and adjustments. High voltage is present during any components or wiring, always unplug the oven and discharge the high voltage capacitor (See Figure 1-1)
2.
Service Manual - Page 5
Specifications
2-1 Table of Specifications
ITEM TIMER POWER SOURCE POWER CONSUMPTION OUTPUT POWER
MODEL
OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT SHIPPING WEIGHT
MW7490W
99 MINUTES 99 SECONDS 120V/60HZ, AC MICROWAVE : 1,450W FROM 100W TO 1000W (10 LEVEL POWER) (IEC-705 TEST PROCEDURE) 2,450MHz OM75PH(31)ESS COOLING FAN MOTOR 217/8(W) x 125...
Service Manual - Page 6
...
Auto Reheat Button
Power Level Selection Button
12 45 78 0 Power Level
3 6 9
More/Less
Clock Button Pause/Canel Button
Clock
Pause Cancel
3-2 Features & External Views
Kitchen Timer
Start
MW7490W
Door Ventilation Holes
Light
Number Key Button More/Less Button Kitchen Timer Button Start Button
Safety Interlock Holes
Door Latches
Glass Tray
Guide Roller
Control Panel...
Service Manual - Page 7
.... 5.
Magnetron
H. Disconnect all lead wires from the magnetron and lamp.
2. Remove the mounting bolts. 4. Remove tow screws from hole
of fan
motor assembly. 6. Remove the oven lamp by pulling out from the back panel of air cover. Discharge the high voltage capacitor. 2.
V. Reconnect the leads correctly and firmly. Disassembly and Reassembly...
Service Manual - Page 8
... the door assembly. Disassembly and Reassembly
4-3 Replacement of Door Assembly
4-3-1 Removal of Door "C"
Insert flat screwdriver into the gap between Door "E" and Door "A" until you hear the 'tick' sound. • Insertion depth of the thin metal plate should be
0.5mm or less.
4-3-3 Removal of Door "E"
Following the procedure as shown in...
Service Manual - Page 9
... replacing the drive motor, be sure to adjust the door parallel to the bottom line of the oven face plate by moving the upper hinge and lower hinge in the correct position with a screw driver. Do the microwave leakage test.
4-4 Replacement of Fuse
1. Screw the drive motor cover to prevent an excessive...
Service Manual - Page 11
.... Normal resistance readings are as follows:
MODEL
Secondary Filament Primary
(Room temperature = 20˚C)
MW7490W
88.0 Ω ± 10% Shows Continuity 0.32Ω ± 10%
Primary Terminals...continuity.
2. It is present at the high voltage terminals during any oven components or wiring, always unplug the oven from the circuit by disconnecting its power source and discharge the high ...
Service Manual - Page 12
... its leads. 2. Isolate them from the circuit by disconnecting the leads. 2. Operate the microwave oven with the wiring diagram and be infinite in one direction and several hundred KΩ in ... leads and read the resistance. Completely tighten the screws holding the Latch Body to the oven assembly, adjust the Latch Body by following switches: Primary interlock and door sensing switches, ...
Service Manual - Page 13
...;T+0.55xMcx(T2-T0) Output Power =
41
41.87: Heating Time (sec) 4.187 : Coefficient for 44 seconds exactly. (3 seconds included as a holding time of Magnetron
Alignment and Adjustments
CAUTION MICROWAVE RADIATION
PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY.
Make all temperature
and time tests with mercury...
Service Manual - Page 14
... probe perpendicular to allow for measurement and meter accuracy
5-10 Check for accuracy by using a microwave energy survey meter.
3) Set survey meter with the probe. Remove the outer panel. 2. Start the oven at the base of the oven. 3. Maximum allowable leakage is 5mW/cm2. 4mW/cm2 is suspected, do not move along the...
Service Manual - Page 15
... WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP.
6-1 Electrical Mulifunction
SYMPTOM Oven is blown. Fuse is dead. Check Ass'y PCB when LVT is defective. Defective...relay or Ass'y PCB
Adjust door and latch switches. Oven does not accept key input (Program)
Timer starts countdown but no microwave oscillation. (No heat while oven lamp and fan motor turn on.)
CAUSE
CORRECTIONS
1....
Service Manual - Page 16
Loud buzzing noise can program but timer does not start. Oven stops operation during cooking
Sparks
Uneven cooking
CAUSE
1. Defective ...motor.
1. Open or loose wiring of primary latch switch
2. CORRECTIONS Adjust door and latch switches.
Microwave output is low;. Oven takes longer time to its characteristics. Misadjustment or loose wiring of primary interlock switch
2. Open or ...
Service Manual - Page 18
...,-
1
M22 DE71-60449A COVER-MGT
PP(TB53),25G,110.5X115,GE-WHT,3RD-1.3 MW789 1
M23 DE93-30375R ASSY CONTROL-BOX MW7490W,WHT,3RD-1.3CU.FT,LCD2
1
M24 DE92-40176G ASSY DOOR
MW7490W,WHT,3RD-1.3CU.FT,NEW GUARD
1
M25 DE39-20037H ASSY POWER CORD 120V60HZ,-,L1150,CSA,MW5592W/XAC
1
M26 DE61-50574A...
Service Manual - Page 19
...DE61-70076A SPRING-BUTTON
HSWR,PI0.6
1
C 3
DE34-10207T SWITCH-MEMBRANE
PET,MW7490W/XAC,-,-,-,-,-,3RD-1.3
1
C 4 DE72-70162A CONTROL-PANEL
ABS,250G,T2.5
1
C 5 RA-W3LCD2-01 ASSY PCB PARTS
-
1
...C 6
DE93-30405J ASSY CONTROL-PANEL MW7490W,WHT,3RD-1.3CU.FT,NEWGUARD
1
C 7 DE64-00044A WINDOW-COVER HIDDEN ABS(HR0370U),BLK,MW4390W,LCD-N/G...
Samsung Knowledge Base Results
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General Support
Clock The SAMSUNG microwave oven has an inbuilt clock that provides time and energy efficiency. 20L Grill The SAMSUNG microwave oven has a cavity of 20L and segment is called grill. ft.) 0.7cu.ft./20 Liter Heat Source Grill Combi Power Source 230V/50Hz Output Power (w) 950W 1,100W Control method Membrane Door opening type Pocket Handle Microwave distridution Turntable Max... -
General Support
.... Installation of model number. Product failure due to improper installation is not covered under the Warranty. Installation Instructions for all over -the-range microwave oven. Attachment : SMH7159WC install.pdf The above attachment contains instructions for installing an over the range microwaves regardless of this appliance requires basic mechanical and electrical skills. -
General Support
... Outgoing Calls 2.2 Incoming Calls 2.3 Missed Calls 2.4 All Calls 2.5 Call Timer 2.6 Data Counter 3 Messages 3.1 Send Message 3.1.1 Text Message 3.1.2 Picture ...8.1.2.5 Device Info 8.2 Calendar 8.3 Memo Pad 8.4 Alarm Clock 8.4.1 Alarm 1 8.4.2 Alarm 2 8.4.3 Alarm 3 8.5... 9.4.4 Auto Retry 9.4.5 TTY Mode 9.4.6 Voice Privacy 9.4.7 Hearing Aid Mode 9.5 Phone Settings 9.5.1 Airplane Mode 9.5.2 Language ...
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