Samsung M308R User manual

MICROWAVE OVEN
M308R (MELON / GRAY / YELLOW)
SERVICE
Manual
MICROWAVE OVEN CONTENTS
1. Precaution
2. Specifications
3. Operating Instructions
4. Disassembly and Reassembly
5. Alignment and Adjustments
6. Troubleshooting
7. Exploded Views and Parts List
8. PCB Diagrams
9. Schematic Diagrams

Samsung Electronics
(a) Do not operate or allow the oven to be
operated with the door open.
(b) Make the following safety checks on
all ovens to be serviced before activating
the magnetron or other microwave
source, and make repairs as necessary:
(1) Interlock operation,
(2) proper door closing,
(3) seal and sealing surfaces (arcing,
wear, and other damage),
(4) damage to or loosening of hinges
and latches,
(5) evidence of dropping or abuse.
(c) Before turning on microwave power
for any service test or inspection within
the microwave generating
compartments, check the magnetron,
wave guide or transmission line, and
cavity for proper alignment, integrity,
and 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 each oven prior to release
to the owner.
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

1. Precaution
1-1 Safety precautions ( )
Samsung Electronics 1-1
1. All repairs should be done in accordance
with the procedures described in this
manual. This product complies with
Federal Performance Standard 21 CFR
Subchapter J (DHHS).
2. Microwave emission check should be
performed to prior to servicing if the oven is
operative.
3. If the oven operates with the door open :
Instruct the user not to operate the oven and
contact the manufacturer and the center for
devices and radiological health immediatly.
4. Notify the Central Service Center if the
microwave leakage exceeds 5 mW/cm2
5. Check all grounds.
6. Do not power the MWO from a "2-prong"
AC cord. Be sure that all of the built-in
protective devices are replaced. Restore any
missing protective shields.
7. When reinstalling the chassis and its
assemblies, be sure to restore all protective
devices, including: nonmetallic control
knobs and compartment covers.
8. Make sure that there are no cabinet openings
through which people--particularly
children--might insert objects and contact
dangerous voltages.
9. Inform the manufacturer of any oven found
to have emmission in excess of 5 mW/cm2,
Make repairs to bring the unit into
compliance at no cost to owner and try to
determine cause.
Instruct owner not to use oven until it has
been brought into compliance.
CENTRAL SERVICE CENTER
10. Service technicians should remove their
watches while repairing an MWO.
11. To avoid any possible radiation hazard,
replace parts in accordance with the wiring
diagram. Also, use only the exact
replacements for the following parts:
Primary and secondary interlock switches,
interlock monitor switch.
12. If the fuse is blown by the Interlock Monitor
Switch: Replace all of the following at the
same time: Primary, door sensing switch
and power relay, as well as the Interlock
Monitor Switch. The correct adjustment of
these switches is described elsewhere in this
manual. Make sure that the fuse has the
correct rating for the particular model being
repaired.
13. Design Alteration Warning:
Use exact replacement parts only, i.e.,
only those that are specified in the
drawings and parts lists of this manual.
This is especially important for the
Interlock switches, described above.
Never alter or add to the mechanical or
electrical design of the MWO. Any design
changes or additions will void the
manufacturer's warranty.10.Always unplug
the unit's AC power cord from the AC
power source before attempting to
remove or reinstall any component or
assembly.
14. Never defeat any of the B+ voltage
interlocks. Do not apply AC power to the
unit (or any of its assemblies) unless all
solid-state heat sinks are correctly installed.
15. Some semiconductor ("solid state") devices
are easily damaged by static electricity. Such
components are called Electrostatically
Sensitive Devices (ESDs). Examples include
integrated circuits and field-effect
transistors.
Immediately before handling any
semiconductor components or assemblies,
drain the electrostatic charge from your
body by touching a known earth ground.
16. Always connect a test instrument's ground
lead to the instrument chassis ground before
connecting the positive lead; always remove
the instrument's ground lead last.
Follow these special safety precautions. Although the microwave oven is completely safe during ordinary
use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as
potentially lethal high voltages and currents.

17. When checking the continuity of the witches
or transformer, always make sure that the
power is OFF, and one of the lead wires is
disconnected.
18. Components that are critical for safety are
indicated in the circuit diagram by
shading, or .
19. Use replacement components that have the
same ratings, especially for flame resistance
and dielectric strength specifications. A
replacement part that does not have the
same safety characteristics as the original
might create shock, fire or other hazards.
1. High Voltage Warning
Do not attempt to measureany of the high
voltages--this includes the filament voltage
of the magnetron. High voltage is present
during any cook cycle.
Before touching any components or wiring,
always unplug the oven and discharge the
high voltage capacitor.
2. The high-voltage capacitor remains charged
about 30 seconds after disconnection. Short
the negative terminal of the high-voltage
capacitor to to the oven chassis. (Use a
screwdriver.)
3. High voltage is maintained within specified
limits by close-tolerance, safety-related
components and adjustments. If the high
voltage exceeds the specified limits, check
each of the special components.
1-2
Pretaution
Samsung Electronics
1-2 Special Servicing Precautions (Continued)
1-3 Special High Voltage Precautions

2. Specifications
2-1 Table of Specifications
Samsung Electronics 2-1
TIMER 15 MINUTES
POWER SOURCE 230V 50Hz, AC
POWER CONSUMPTION MICROWAVE : 800W
OUTPUT POWER 500W (IEC-705 TEST PROCEDURE)
OPERATING FREQUENCY 2,450MHz
MAGNETRON OM52S(20)
COOLING METHOD COOLING FAN MOTOR
OUTSIDE DIMENSIONS 281(W) x 330.5(H) x 316(D)

3-1 Samsung Electronics
Convenience Features
(Drinks, Snacks, Meals)
Time Feature Stop Button
5 s
1 min
h
min
3. Operating Instructions
3-1 Control Panel
3-2 Features & External Views
Door latches
Door Control Panel
Display
Glass Cook Tray
281mm
330.5mm
316mm

4. Disassembly and Reassembly
4-1 Replacement of Magnetron, Motor Assembly and Lamp
Samsung Electronics 4-1
Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of
which are contained in one assembly).
1. Disconnect all lead wires from the magnetron.
2. Remove the magnetron supporter.
3. Remove the air cover.
4. Remove screws securing the magnetron to the wave guide.
5. Take out the magnetron very carefully.
6. Remove screws from the back panel.
7. Take out the fan motor.
NOTE1: When removing the magnetron, make sure that its antenna does not hit any adjacent parts, or it
may be damaged.
NOTE2: When replacing the magnetron, be sure to remount the magnetron gasket in the correct position
and make sure the gasket is in good condition.
1. Discharge the high voltage capacitor.
2. Disconnect all the leads.
3. Remove the mounting bolts.
4. Reconnect the leads correctly and firmly.
4-2 Replacement of High Voltage Transformer
PRECAUTION
Servicemen should remov their watches whenever working close to or replacing the magnetron.
PRECAUTION
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near
these circuits with the oven energized.
DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.

4-3 Replacement of Door Assembly
4-2 Samsung Electronics
Disassembly and Reassembly
Door A
Door E
Door C
Key Door
Spring Key
1. The door is serviced by individual parts complete
doors are not available.
2. Insert a thin screwdriver into the gap between
door a and door c to remove door c.
Then remove the door assembly.
3. To remove the door assembly, lift up door
assembly.
4. Remove door springs and latch pawls if necessary.
5. Check latch lever operation at strike assembly.
Adjust if necessary. (see interlock switch
adjustment)
4-3-1 Reassembly Test
1. Disconnect the oven from the power source.
2. When 15A fuse blows out by the operation of interlock monitor switch failure, replace the primary
interlock switch, door sensing switch, monitor switch and power relay.
3. When the above three switches operate properly, check if any other part such as the control circuit board,
blower motor or high voltage transformer is defective.
4-4 Replacement of Fuse
After replacement of the defective component parts of the door, reassemble it and follow the
instructions below for proper installation and adjustment so as to prevent an excessive microwave
leakage.
1. When mounting the door to the oven, 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 direction necessary for proper alignment.
2. Adjust so that the door has no play between the inner door surface and oven front surface. If the door
assembly is not mounted properly, microwave energy may leak from the space between the door and
oven.
3. Do the microwave leakage test.

Samsung Electronics 4-3
Disassembly and Reassembly
4-6 Replacement of Control Circuit Board
4-6-1 Removal of Ass'y Control Box
1. Be sure to ground any static electric charge in your body and never touch the touch control circuitry.
2. Disconnect the connectors from the control circuit board.
3. Remove screws securing the control box assembly.
4. Remove the screw securing the ground.
1. Window display should not be disassembled as its mounting tabs will be broken. If repair work is
difficult, replace with Ass'y control panel.
2. The membrane key board is attached to the escutcheon base with doublefaced adhesive tape. Therefore,
applying hot air such as using of hair dryer is recommended for smoother removal.
1. Remove screws securing the control circuit board.
2. Lift up the control circuit board from the Ass'y control box.
4-6-2 Remonal of Ass'y P.C.B
4-6-3 Removal of Window Display

5-1 Samsung Electronics
5. Alignment and Adjustments
5-1 High Voltage Transformer
5-2 Low Voltage Transformer
5-3 Magnetron
1. Remove connectors from the transformer terminals
and check continuity.
2. Normal resistance readings are as follows:
(Room temperature = 20ûC)
1. Continuity checks can indicate only an open
filament or a shorted magnetron. To diagnose an
open filament or shorted magnetron :
2. Isolate the magnetron from the circuit by
disconnecting its leads.
3. A continuity check across the magnetron filament
terminals should indicate one ohm or less.
4. A continuity check between each filament terminal
and magnetron case should read open.
1. The low voltage transformer is located on the
control circuit board.
2. Remove the low voltage transformer from the
PCB Ass'y and check continuity.
3. Normal resistor reading is shown in the table.
Filament Terminals
Secondary
Terminal
Primary
Terminals
Secondary Approx. 160W
Filament Approx.0.08W
Primary Approx.2.9W
Terminals Resistance
1~2(Input) 1,300W
3~4(Output 2.9V) 3.947W
5~6(Output13V) 2.117W
Cooling Fins
Gasket Plate
Magnetron Antenna
PRECAUTION
1. High voltage is present at the high voltage terminals during any cook cycle.
2. It is neither necessary nor advisable to attempt measurement of the high voltage.
3. Before touching any oven components or wiring, always unplug the oven from its power source and
discharge the high voltage capacitor.

Samsung Electronics 5-2
5-4 High Voltage Capacitor
5-5 High Voltage Diode
5-6 Power Control Relay
5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch
1. Check continuity of the capacitor with the meter set at the highest resistance scale.
2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MW.
3. A shorted capacitor will show continuous continuity.
4. An open capacitor will show constant 9MW.
5. Resistance between each terminal and chassis should read infinite.
1. Isolate the diode from the circuit by disconnecting its leads.
2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the
meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used to
check the front-to back resistance of the diode (otherwise an infinite resistance may be read in both
directions). The resistance of a normal diode will be infinite in one direction and several hundred KWin
the other direction.
1. When mounting Primary switch and Interlock
Monitor switch to Latch Body, consult the figure.
2. No specific adjustment during installation of
Primary switch and Monitor switch to the latch
body is necessary.
3. When mounting the Latch Body to the oven
assembly, adjust the Latch Body by moving it so
that the oven door will not have any play in it.
Check for play in the door by pulling the door
assembly. Make sure that the latch keys move
smoothly after adjustment is completed.
Completely tighten the screws holding the Latch
Body to the oven assembly.
4. Reconnect to Monitor switch and check the
continuity of the monitor circuit and all latch
switches again by following the components test
procedures.
5. Confirm that the gap between the switch
housing and the switch actuator is no more than
0.5mm when door is closed.
1. The relays are located on the PCB Ass'y. Isolate them from the main circuit by disconnecting the leads.
2. Operate the microwave oven with a water load in the oven. Set the power level set to high.
3. Check continuity between terminals of the relays after the start pad is pressed.
Precaution
For continued protection against radiation hazard, replace parts in accordance with the wiring diagram and
be sure to use the correct part number for the following switches: Primary and secondary interlock
switches, and the interlock monitor switch (replace all together). Then follow the adjustment procedures
below. After repair and adjustment, be sure to check the continuity of all interlock switches and the
interlock monitor switch.
Alignment and Adjustments
Door Open Door Closed
Primary switch ¥0
Monitor switch (COM-NC) 0 ¥
Monitor switch (COM-NO) ¥0
Door Sensing S/W ¥0
MOUNTING
SCREWS
PRIMARY
MONITOR
DOOR
SENSING

Samsung Electronics
The output power of the magnetron can be measured by performing a water temperature rise test.
Equipment needed :
* Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm)
* One glass thermometer with mercury column
NOTE: Check line voltage under load. Low voltage will lower the magnetron output. Make all temperature
and time tests with accurate equipment.
1. Fill the one liter glass vessel with water.
2. Stir water in glass vessel with thermometer, and record glass vessel's temperature ("T1", 10±1ûC).
3. After moving the water into another glass vessel, place it in the center of the cooking tray. Set the oven to high
power and operate for 86 seconds exactly. (3 seconds included as a holding time of magnetron oscillation:)
4. When heating is finished, stir the water again with the thermometer and measure the temperature ("T2").
5. Subtract T1 from T2. This will give you the water temperature rise. (DT)
6. The output power is obtained by the following formula;
7. Normal temperature rise for this model is 9ûC to 11ûC at 'HIGH'.
NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise.
Additional power test should be made if temperature rise is marginal.
NOTE 2: Output power in watts is computed by multiplying the temperature rise (step E) by a factor of 50
times the of centigrade temperature.
4.187 x 1000 x DT
Output Power = 83
83 : Heating Time (sec)
4.187 : Coefficient for Water
1000 : Water (cc)
DT : Temperature Rise (T2-T1)
5-8 Output Power of Magnetron
CAUTION
MICROWAVE RADIATION
PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE
GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY.
5-3
Alignment and Adjustments
5-9 Procedure for Measurement of Microwave Energy Leakage
1) Pour 275±15cc of 20±5ûC(68±9ûF) water in a beaker which is
graduated to 600cc, and place the beaker in the center of the oven.
2) Start to operate the oven and measure the leakage by using a
microwave energy survey meter.
3) Set survey meter with dual ranges to 2,450MHz.
4) When measuring the leakage, always use the 2 inch spacer
cone with the probe. Hold the probe perpendicular to the
cabinet door. Place the spacer cone of the probe on the door
and/or cabinet door seam and move along the seam, the door
viewing window and the exhaust openings moving the probe
in a clockwise direction at a rate of 1 inch/sec. If the leakage
testing of the cabinet door seam is taken near a corner of the door, keep the probe perpendicular to the
areas making sure that the probe end at the base of the cone does not get closer than 5cm to any metal. If it
gets closer than 5cm, erroneous readings may result.
5) Measured leakage must be less than 4mW/cm2, after repair or adjustment.
Maximum allowable leakage is 5mW/cm2.
4mW/cm2is used to allow for measurement and meter accuracy

Samsung Electronics 5-4
Alignment and
5-12 Leakage Measuring Procedure
5-11 Note on Measurement
5-10 Check for Microwave Leakage
5-12-1 Record keeping and notification after measurement
1) After adjustment and repair of a radiarion preventing device, make a repair record for the measured
values, and keep the data.
2) If the radiation leakage is more than 5 mW/cm2. after determining that all parts are in good condition,
functioning properly and the identical parts are replaced as listed in this manual notift that fact to ;
CENTRAL SERVICE CENTER
5-12-2 At least once a year have the microwave energy survey meter checked for accuracy by its
manufacturer.
1. Remove the outer panel.
2. Pour 275±15cc of 20±5ûC(68±9ûF) water in a
beaker which is graduated to 600cc, and
place the beaker in the center of the oven.
3. Start the oven at the highest power level.
4. Set survey meter dual ranges to 2,450MHz.
5. Using the survey meter and spacer cone as
described above, measure arnear the
opening of magnetron, the surface of the air
guide and the surface of the wave guide as
shown in the following photo.( but avoid the
high voltage components.) The neading
should be less than 5mW/cm2.
1) Do not exceed the limited scale.
2) The test probe must be held on the grip of the handle, otherwise a false reading may result when the
operator's hand is between the handle and the probe.
3) When high leakage is suspected, do not move the probe horizontally along the oven surface; this may
cause damage to the probe.
4) Follow the recommendation of the manufacturer of the microwave energy survey meter.

6. Troubleshooting
PRECAUTION
1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.
2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.
3. DISCHARGE THE HIGH VOLTAGE CAPACITOR.
4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE
FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON. TO DO
OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGE TO YOUR METER.
5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC
DISCHARGE MAY DAMAGE IT. ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY
STATIC CHARGE BUILT UP.
6-1 Electrical Maltunction
SYMPTOM CAUSE CORRECTIONS
Oven is dead. 1. Open or loose lead wire harness Check fan motor when thermal cutout is defective.
Fuse is OK. 2. Open thermal cutout (Cavity)
No display and no operation at all. 3. Open low voltage transformer Check Ass'y PCB when LVT is defective.
4. Defective Ass'y PCB
No display and no operation at all. 1. Shorted lead wire harness Check adjustment of primary, interlock monitor,
Fuse is blown. 2. Defective primary latch switch (NOTE 1) power relay, door sensing switch.
3. Defective monitor switch (NOTE1)
4. Shorted HVCapacitor
5. Shorted HVTransformer (NOTE2)
NOTE 1: All of these switches must be replaced at the same time.
(refer to adjustment instructions)
Check continuity of power relay contacts and if it has continuity, replace power
relay also.
NOTE 2: When HVTransformer is replaced, check diode and magnetron also.
Oven does not accept 1. Key input is not in-Sequence Refer to operation procedure.
key input (Program) 2. Open or loose connection of tact s/w
to Ass'y PCB
3. Shorted or open tact s/w
4. Defective Ass'y PCB Replace PCB main.
1. Off-alignment of latch switches Adjust door and latch switches.
2. Open or loose connection of high voltage
circuit especially magnetron filament
circuit
NOTE: Large contact resistance will bring
lower magnetron filament voltage and
Timer starts countdown but no cause magnetron to lower output and/or
microwave oscillation. intermittent oscillation.
(No heat while oven lamp and 3. Defective high voltage components Check high voltage component according to
fan motor turn on.) H.V.Transformer component test procedure and replace if it is
H.V.Capacitor defective.
H.V.Diode, H.V.Fuse
Magnetron
4. Open or loose wiring of power relay
5. Defective primary latch switch
6. Defective power relay or Ass'y PCB Replace PCB main.
Samsung Electronics6-1

Samsung Electronics 6-2
Troubleshooting
SYMPTOM CAUSE CORRECTIONS
Oven can program but timer 1. Open or loose wiring of secondary Adjust door and interlock switches.
does not start. interlock switch
2. Off-alignment of primary interlock
3. Defective secondary interlock S/W
Microwave output is low;. 1. Decrease in power source voltage. Consult electrician.
Oven takes longer time to 2. Open or loose wiring of magnetron
cook food. filament circuit. (Intermittent oscillation))
3. Aging of magnetron
Fan motor turns on when plugged in Loose wiring of door sensing switch Check wire of door sensing switch.
Oven does not operate and return Defective Ass'y PCB Replace PCB main.
to the plugged in mode.
Loud buzzing noise can be heard. 1. Loose fan and fan motor Tighten screws of fan motor.
2. Loose screws on H.V.Transformer Tighten screws of H.V.Transformer.
3. Shorted H.V.Diode Replace H.V.Diode.
Oven stops operation during cooking 1. Open or loose wiring of primary Adjust door and latch switches.
interlock switch
2. Operation of thermal cutout(Cavity)
Sparks 1. Metallic ware or cooking dishes Inform the customer.
touching on the oven wall.
2. Ceramic ware trimmed with gold or Do not use any type of cookware with
silver powder also causes sparks. metallic trimming.
Uneven cooking Uneven intensity of microwave due to Wrap thinner parts of the food with
its characteristics. aluminum foil.
Use plastic wrap or cover with a lid.
Stir once or twice while cooking
foods such as soup, cocoa, or milk.
6-2 Electrical Maltunction(continved)

Samsung Electronics
7. Exploded Views and Parts List
7-1 Exploded Views
1
33 31
34
35
36
30
28
27
26
29
23
22
25
24
20
21
17
16
18
19
15
14
12
13
11
40
41
10
8
9
2
5
43
6
7
32
37
38
42
39
7-1

Samsung Electronics 7-2
Exploded Views and Parts List
7-2 Main Parts List
: Option Parts : Warning :Electrostatically Sensitive Devices
Ref. No. Parts No. Description/Specification Q'ty Remarks
1 DE70-10012F PANEL-OUTER;SECC T0.5,W296.5,L931,-,MELON 1 MELON
1 DE70-10012B PANEL-OUTER;C/STEEL,T0.5,931,296.5,JE320GA 1 GRAY
1 DE70-10012L PANEL-OUTER;T0.5,W931,L296.5,EURO-YEL,M308R-Y 1 YELLOW
2 DE64-40313B DOOR-C;PP,-,BLK,-,JE320GA 1
3 DE92-40212B ASSY DOOR;M308A,MELON-YEL(88099) 1 MELON
3 DE94-00007B ASSY DOOR;M308-D/AMF,DARK GREY 1 GRAY
3 DE94-00007E ASSY DOOR;M308R-Y/BWT,EURO-YEL 1 YELLOW
4 DE92-50131B ASSY DOOR-E;JE320GA,-,BLK,GE 1
5 DE64-40329B DOOR-A;ABS-HR0370D,-,MELON-GRN(88099) 1 MELON
5 DE64-40329G DOOR-A;ABS(G3328),DARK-GRAY,M308-D/AMF 1 GRAY
5 DE64-40329J DOOR-A;ABS(HR0370),-,-,-,EURO-YEL,M308R-Y/BWT 1 YELLOW
6 DE64-40312B DOOR-KEY;POM(TC30005),10G,BLK,T0.2,-,-, 1
7 DE61-70029A SPRING-KEY;ES,HSWR10,PI0.6,D6.0,L31.3,BLU 1
8 DE92-90543A ASSY-COVER MGT;JE320,GE 1
9 DE74-20117B TRAY-COOKING;GLASS,T5.6,630g,-,-,-,M308/RE- 1
10 DE97-00062A ASSY PCB-MAIN;RC-M308-04,M308R-A/BWT 1
11 DE66-20282B BUTTON-SELECT(A);ABS-HR0370D,MELON-YEL(88099) 1 MELON
11 DE66-20282E BUTTON-SELECT(A);ABS(G3328),-,-,D/GRY,M308-D/AMF 1 GRAY
11 DE66-20282G BUTTON-SELECT(A);ABS,-,-,EURO-YEL,M308R-Y/BWT 1 YELLOW
12 DE66-20284B BUTTON-CANCEL;ABS(558-53798A),-,GRN 1 MELON
12 DE66-20284F BUTTON-CANCEL;ABS(TR558)SILK,-,-,MILK GRY,M308-D/AMF 1 GRAY
12 DE66-20284C BUTTON-CANCEL;ABS(558-3561B),RE-400,ORG 1 YELLOW
13 DE66-20283B BUTTON-SELECT(B);ABS-HR0370D,MELON-YEL(88099) 1 MELON
13 DE66-20283F BUTTON-SELECT(B);ABS(G3328)SILK,-,-,D/GRY,M308-D/AMF 1 GRAY
13 DE66-20283H BUTTON-SELECT(B);ABS,-,-,EURO-YEL,M308R-Y/BWT 1 YELLOW
14 DE72-70213L CONTROL-PANEL;ABS,M308R-A/BWT,-,-,-,-,MELON-GRN(88099) 1 MELON
14 DE72-70213K CONTROL-PANEL;ABS,M308R-D/BWT,-,-,-,-,D/GRY(G3328) 1 GRAY
14 DE72-70213P CONTROL-PANEL;ABS(HR0370D),M308R-Y/BWT,-,-,-,-,EURO-YEL 1 YELLOW
15 DE64-90162B DECORATION;ABS,-,-,-,-,-,M308-A,MOUNTAIN-GREEN 1 MELON
15 DE64-90162D DECORATION;ABS,-,-,-,-,-,EME 0980,MILK GRY 1 GRAY
15 DE64-90162C DECORATION;ABS(HR0370D),-,-,-,-,-,RE-400,16033,C/YEL 1 YELLOW
16 DE67-40177A WINDOW-DISPLAY;SAN,-,-,-,SMOG,-,M308(MIKE) 1
17 DE61-50533A BRACKET-HVC;SECC,T0.6 1
18 2501-001022 C-OIL;770nF,2100V,BK,35X54X70,20mm 1
19 DE91-70063A ASSY-HVD;V2M6,PI9.0,0.05MT 1
20 DE91-70061F ASSY-H.V.FUSE;THV060T,5KV0.5A, 1
21 DE61-40017A FOOT;PP(A353),BLK,MW5630T 2
22 DE26-10157A TRANS-H.V;SHV-308EC1,230V,1930V/3.45V,50 1
23 DE71-60442A COVER-AIR;P.P,WHT,42G 1
24 DE03-30069A MAGNETRON;OM52S(S20)ESS,900W,4.2KV,SAMSU 1
25 DE31-10182C MOTOR-FAN;SMF-320EA,230V50Hz,2400rpm 1
26 DE31-90054A BLADE-FAN;PP,-,100MM,JE320WA/GA 1
27 DE80-10116A BASE-PLATE;SGCC1-Z,T0.8,254,315.5,JE320WA 1
28 DE73-90027A FERRITE-CORE;NI-ZN,T13.8,W21.0,L28.0,BNF-14 1
29 DE66-90111A LEVER-DOOR;POM,T2.0,-,-,7G,JE320WA,WHT 1
30 DE34-20028A SWITCH-MICRO;VP-333A-OD 1
31 3405-000178 SWITCH-MICRO;250V,15A,200gf,SPST-NO 1
32 DE72-10091A BODY-LATCH;PBT,T2.0,-,-,45G,WHT,JE320WA 1
33 3405-000175 SWITCH-MICRO;250V,15A,200gf,SPST-NO 1
34 DE61-30191A SUPPORT-CHOKE PCB;PP(TB53),T2,W63,L62.3,NTR,M308 1
35 DE91-40006B ASSY NOISE FILTER;SN-D10B(E),250V10A 1

7-3 Samsung Electronics
Exploded Views and Parts List
Parts No. Description / Specification Q'ty Remarks
DE60-10012A SCREW-TAP TITE;TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 BKT/HVC
DE60-10012A SCREW-TAP TITE;TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 2 F/MOTOR
DE60-10012A SCREW-TAP TITE;TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 P/C EARTH
DE60-10012A SCREW-TAP TITE;TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 PCB-EARTH
DE60-10080A SCREW-WASHER;M5,L12,2S 4 HVT
DE60-10082I SCREW-A;2S-4X12,FEFZY 2 B/LATCH
DE60-10082I SCREW-A;2S-4X12,FEFZY 3 BASE/PLA
DE60-10082I SCREW-A;2S-4X12,FEFZY 2 C/BOX
DE60-10082I SCREW-A;2S-4X12,FEFZY 3 O/PANEL
DE60-10082I SCREW-A;2S-4X12,FEFZY 1 S/C/PCB
DE60-10083A SCREW-TAP TH;TH,M4,L12,FEFZY,FA 1 B/HVC
DE60-10098A SCREW-ASSY TAP TITE;PH,TC,M4X8,SWRCH18A,ZPC2,GLD,W 1 ASSY/HVD
DE60-30015A NUT-FLANGE;M5,P0.8,MSWR10,FEFZY 4 MGT
DE60-10088A SCREW-TAP PH;PH,M3,L8,FEFZY,PLAIN 4 PCB/MAIN
DE60-10088A SCREW-TAP PH;PH,M3,L8,FEFZY,PLAIN 3 PCB/SUB
7-3 Standard Parts List
7-2 Main Parts List
Ref. No. Parts No. Description/Specification Q'ty Remarks
36 DE39-20145A ASSY POWER CORD;MOONSUNG,-,230V50Hz,-,-,-,M308 1
37 DE47-20173A THERMOSTAT;PW-2N(90/60)30,187Y,250V7.5A,9 1
38 DE93-20096B ASSY BODY LATCH;JE324,GE-EUROPE 1
39 DE94-00008F ASSY CONTROL-BOX;230V50HZ,M308R-A/BWT,M/GREEN 1 MELON
39 DE94-00008E ASSY CONTROL-BOX;230V50HZ,M308R-D/BWT,DARK GRY 1 GRAY
39 DE94-00008J ASSY CONTROL-BOX;230V50HZ,M308R-Y/BWT,EURO-YEL 1 YELLOW
40 DE94-00006F ASSY CONTROL-PANEL;230V50HZ,M308R-A/BWT,M/GRN,88099 1 MELON
40 DE94-00006E ASSY CONTROL-PANEL;230V50HZ,M308R-D/BWT,D/GRY,G3328 1 GRAY
40 DE94-00006J ASSY CONTROL-PANEL;230V50HZ,M308R-Y/BWT,EURO-YELLOW 1 YELLOW
41 DE39-40754A WIRE HARNESS-A;230V50Hz,M308,EUROPE 1
42 3601-000448 FUSE-FERRULE;250V,10A,SLOW-BLOW,CERAMIC,6.3 1

Samsung Electronics 8-1
8. P.C.B Diagrams
8-1 P.C.B Diagram

8-2 Samsung Electronics
No. Parts No. Description / Specification Q'ty Remarks
P 1 0703-001048 DISPLAY-LED;GRN,4digit,7seg,45.2x22.38x27. 1 DSP1
P 2 1003-001033 IC-SOURCE DRIVER;TD62781AP,DIP,18P,300MIL,OCTAL 1 IC02
P 3 3501-001062 RELAY-POWER;24VDC,523.2mW,16A,1FormA,15mS, 1 RY01
P 4 3601-001126 FUSE-FERRULE;250V,1.6A,QUICK-ACTING,CERAMIC 1 FUS1
P 5 DE09-00038A IC-MCU;KS57C0004-R1E,M308R,4BIT 1 IC01
P 6 DE13-20016A IC-VOLT REGU;KA7805A,TO-220AB,1A,0/125C 1 RG01
P 7 DE26-20146A TRANS-L.V;SLV-745EN,230V,50HZ,AC17/7V 1 LVT1
P 8 DE30-20016A BUZZER;CBE2220BA,STICK 1 BUZ1
P 9 DE39-40760A WIRE HARNESS;DC24V,M308/RE400,WIRE-FLAT,5P 1 CN02
P10 DE47-40024A HOLDER-FUSE;FH-51H,7.5A 1 FUS1
P11 0401-001025 DIODE-SWITCHING;1N4148M,50V,450mA,DO-34,TP 1 D003,D004,D005,D006,D007
P11 0401-001025 DIODE-SWITCHING;1N4148M,50V,450mA,DO-34,TP 1 D008,D009
P12 0402-001103 DIODE-RECTIFIER;1T4,400V,1A,TS-1,TP 1 D001,D002
P13 0403-000355 DIODE-ZENER;UZ5.1BSB,5.1V,4.97-5.18V,500mW 1 ZD01
P14 0501-000388 TR-SMALL SIGNAL;KSC815,NPN,400mW,TO-92,BK,120- 1 TR03
P15 0504-001014 TR-DIGITAL;KSR1005,NPN,300MW,4.7K/10K,TO-92,TP 1 TR01,TR02,TR04
P16 2001-000009 R-CARBON;20KOHM,5%,1/8W,AA,TP,1.8X3.2MM 1 R022
P17 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM 1 R004,R005,R006,R010,R011
P18 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM 1 R001,R002,R003,R008,R009,R019
P19 2001-000435 R-CARBON;1MOHM,5%,1/8W,AA,TP,1.8X3.2MM 1 R021
P20 2001-000502 R-CARBON;20OHM,5%,1/4W,AA,TP,2.4X6.4MM 1 R012,R013,R014,R015,R016
P20 2001-000502 R-CARBON;20OHM,5%,1/4W,AA,TP,2.4X6.4MM 1 R017,R018
P21 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,1.8X3.2MM 1 R007
P22 2001-000904 R-CARBON;620OHM,5%,1/8W,AA,TP,1.8X3.2MM 1 R020
P23 2202-000173 C-CERAMIC,MLC-AXIAL;1nF,10%,50V,Y5P,TP,1.9x3.5 1 C011,C012
P24 2202-000205 C-CERAMIC,MLC-AXIAL;22pF,5%,50V,SL,TP,1.9x3.5 1 C013,C014
P25 2202-002037 C-CERAMIC,MLC-AXIAL;100nF,80-20%,50V,Y5V,TP,2.2x3. 1 C005,C006,C007,C008
P26 2401-000244 C-AL;100uF,20%,10V,GP,TP,6.3x7,5 1 C002
P27 2401-000914 C-AL;22uF,20%,16V,GP,TP,5x11,5 1 C004,C009
P28 2401-001363 C-AL;470uF,20%,16V,GP,TP,10x12.5,5 1 C001
P29 2401-002075 C-AL;4.7uF,20%,50V,GP,TP,5x11,5 1 C010
P30 2401-002598 C-AL;220uF,20%,50V,GP,TP,10x16,5 1 C003
P31 2801-003214 CRYSTAL-UNIT;4.194304MHz,50ppm,28-AAA,12pF, 1 XTL1
P32 3404-001022 SWITCH-TACT;15V,20mA,130¡¾40gf,6x6x5mm,SPS 1 SW01,SW02,SW03,SW04
P32 3404-001022 SWITCH-TACT;15V,20mA,130¡¾40gf,6x6x5mm,SPS 1 SW05,SW06
P33 3711-004179 CONNECTOR-HEADER;1WALL,5/8P,1R,-,STRAGHT,SN 1 CN01
P34 DE13-20009A IC;KA7533,DIP 1 IC03
P35 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE 1 J002,J003,J004,J005,J006
P35 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE 1 J007,J008,J009,J010
8-2 P.C.B Parts List
P.C.B Diagrams