SAMSUNG M1713XEU Service Manual

MICROWAVE OVEN

M1713

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. Wiring Diagram

SESC

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.

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/cm

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. Examples: Lamp hole,

ventilation slots.

9. Inform the manufacturer of any oven found

to have emmission in excess of 5 mW/cm

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 (See Figure 1-1)

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

PRECAUTION

Never touch any circuit wiring with your hand nor with

uninsulated tool during operation.

H. V. Diode

Short

H. V. Capacitor

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.

PRECAUTION

Servicemen should remove their watches whenever

working close to or replacing the magnetron.

Fig. 1-1. Discharging the High Voltage Capacitor

Touch chassis ground first then short to the high

voltage capacitor terminal by using screwdriver or

jumper wire.

2. Specifications

2-1 Table of Specifications

Samsung Electronics 2-1

M1713

POWER SOURCE 230V 50Hz, SINGLE PHASE

POWER CONSUMPTION 1,200W

OUTPUT POWER 100W/800W

OPERATING FREQUENCY 2450MHz

TIMER 35 MINUTES

COOLING METHOD AIR COOLING

MAGNETRON OM75SH(31)ESST

OUTSIDE DIMENSIONS 489(W) x 351(D) x 275(H)mm

OVEN CAVITY DIMENSIONS 306(W) x 322(D) x201(H)mm

SHIPPING WEIGHT APPROX. 13.5 Kg

3. Operating Instructions

3-1 Control Panel

3-1 Samsung Electronics

Instant

Reheat

Defrost

Open Door

Push Button

Samsung Electronics 3-2

489mm

357mm

275mm

200mm

351mm

NOTE: The oven must be plugged into an appropriate wall socket.

The glass plate must be in position in the ovn.

1. Open the oven door by pushing the OPEN DOOR button. Place a glass of water on the glass plate.

Close the door.

2. Set the power level to 100%(maximum) by turning COOKING POWER CONTROL knob.

3. Set the time to 4 to 5 minutes by turing TIMER knob.

Important: If any problem is experienced in the operation of the oven, please refer to the section on page 4

"what to do if you are in doubt or have a problem."

Operating Instruction

3-3 Checking That Your Oven is Operating Correctly

3-2 Features & External Views

LIGHT

VENTILATION HOLES

DOOR

LATCHES

ROLLER RING

OPEN DOOR

PUSH BUTTON

CONTROL

PANEL

SAFETY

INTERLOCK HOLES

COUPLER

TURNTABLE

+ 16 hidden pages