Samsung NV51K6650D User manual

Refer to the service manual in the GSPN(see rear cover) for the more information.
1. Precaution
2. ProductSpecication
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagrams
6. Wiring Diagram
Built in electric wall oven
Built in electric wall oven
BASIC: NV51K6650D*
MODEL: NV51K7770D*
MODEL CODE: NV51K7770D*

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• Contents
1. Precaution ..............................................................................3
1-1 Forward .............................................................................3
1-2 Safety Precautions .....................................................................3
1-3 Important Safety Instructions .............................................................4
1-4 Model & Serial Number Label and Tech Sheet Locations .......................................6
2. Specications ...........................................................................7
2-1 Table of Specications ..................................................................7
2-3 Accessory ............................................................................8
3. Disassembly and Reassembly ..............................................................9
3-1 Preparing remove the Assy-Frame Wall oven ................................................9
3-2
Removing Cover-Back Main Wire ....................................................9
3-3 Removing PCB-Main ..................................................................10
3-4 Removing SMPS PCB .................................................................11
3-5 Removing control box .................................................................12
3-6 Removing Sub PCB ...................................................................13
3-7 Removing Knob lighting module .........................................................14
3-8 Removing The Latch-Door & Switch-Door Plunger ...........................................15
3-9 Removing Heater-Broil .................................................................16
3-10 Removing Heater-Bake ...............................................................17
3-11 Removing Convection Element, Fan-Convection and Motor-Convection ...................................18
3-12 Removing Lamp .....................................................................19
3-13 Removing Assy-partition switch .........................................................20
3-14 Removing Sensor-Thermistor ..........................................................21
3-15 Oven Door .........................................................................22
3-16 Oven Door .........................................................................23
3-17 Handle-Door, Glass Inner ..............................................................24
3-18 Removing Gasket-Door ...............................................................26
3-19 Removing the Wi-Fi module ............................................................27
3-20 Removing the steam set ..............................................................28
3-21 Assy Steamer .......................................................................29
3-22 Assy Generator Sub ..................................................................31
3-23 Motor AC Pump .....................................................................32
4. Troubleshooting ........................................................................33
4-1 Failure Display Codes .................................................................33
4-2 Electrical Malfunction ..................................................................47
5. PCB Diagrams ..........................................................................54
5-1 PCB Diagrams (Upper oven) ............................................................54
5-2 PCB Diagrams (Lower oven) ............................................................56
5-3 PCB Diagrams (LCD PBA) ..............................................................57
5-4 PCB Diagrams (SUB PBA) .............................................................58
6. Wiring diagram .........................................................................59
6-1 Schematic diagram (Upper oven) ........................................................59
6-2 Schematic diagram (Lower oven) ........................................................60

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This document can not be used without Samsung’s authorization.
1. Precaution
1-1 Forward
This SAMSUNG Service Manual, “Built in electric wall oven” provides the technician with information on the
operation and service of the built in electric wall oven.. It is to be used as a training Service Manual. For specic
information on the model being serviced, refer to the “Owner’s Manual” or “Tech Sheet” provided with electric
wall oven.
1-2 Safety Precautions
• Repairs of the appliance should be carried out by a licensed technician only. Incorrect repairs may result in
dangerous situations. If you need repairs, contact a SAMSUNG Service Center or your dealer.
• If the power cord is defective, it must be replaced by a qualied service agent with a UL listed range cord.
• Electrical leads and cables should not be allowed to touch the oven.
• Rating plate is located on the left side of trim door.
• The power supply of the appliance should be turned off when it is being repaired.
WARNING
• To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance
to avoid electrical shock.
• When the oven operates, the interior parts will be very hot.
SAMSUNG Electronics assumes no responsibility for any repairs made on our products by anyone other than
Authorized Service Technicians.

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1. Precaution
This document can not be used without Samsung’s authorization.
1-3 Important Safety Instructions
Read and follow all instructions before using your oven to prevent the risk of re, electric shock, injury to person,
or damage when using the oven. This guide doesn’t cover all possible conditions that may occur.
For further assistance contact your service agent or manufacturer.
WARNING
This symbol will help alert you to hazards or unsafe practices which could cause serious bodily harm or death.
• Be sure your appliance is properly installed and
grounded by a qualied technician.
• Do not repair or replace any part of the appliance unless
specically recommended in the manual. All other
servicing should be referred to a qualied technician.
• Always disconnect power to appliance before servicing
by removing the fuse or switching off the circuit breaker
WARNING
• DO NOT TOUCH HEATING ELEMENTS OR
INTERIOR SURFACES OF OVEN – Heating
elements may be hot even though they are dark
in color. Interior surfaces of an oven become hot
enough to cause burns. During and after use,
do not touch, or let clothing or other ammable
materials contact heating elements or interior
surfaces of oven until they have had sufcient
time to cool. Other surfaces of the appliance may
become hot enough to cause burns – among
these surfaces are oven vent openings and
surfaces near these openings, oven doors, and
windows of oven doors.
• Do Not Leave Children Alone - Children should not be left
alone or unattended in area where appliance is in use.
They should never be allowed to sit or stand on any part
of the appliance.
•
Never Use Your Appliance for Warming or Heating the Room.
• Storage in or on Appliance – Flammable materials should
not be stored in an oven or near surface units. Be sure all
packing materials are removed from the appliance before
operating it. Keep plastics, clothes and paper away from
parts of the appliance that may become hot
• Wear Proper Apparel – Loose-tting or hanging garments
should never be worn while using the appliance.
• Do Not Use Water on Grease Fires – Turn off oven to
avoid spreading the ame. Smother the re or ame by
closing the door or use dry chemical, baking soda or
foam- type extinguisher.
• Use Only Dry Potholders – Moist or damp potholders on
hot surfaces may result in burns from steam. Do not let
potholder touch hot heating elements. Do not use a towel
or other bulky cloth.
WARNING
To avoid risk of electrical shock, personal injury, or
death, make sure your range has been properly
grounded and always disconnect it from main power
supply before any servicing.

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1. Precaution
This document can not be used without Samsung’s authorization.
SELF-CLEAN OVENS
• Do Not Clean Door Gasket – The door gasket is
essential for a good seal. Care should be taken not to
rub, damage, or move the gasket.
• Do Not Use Oven Cleaners – No commercial oven
cleaner or oven liner protective coating of any kind
should be used in or around any part of the oven.
• Clean in the self-clean cycle only parts listed in
this manual. Before self-cleaning the oven, remove
the broiler pan and any utensils from the oven.
•
Never keep pet birds in the kitchen – the health
of birds is extremely sensitive to the fumes released
during an oven self-clean cycle. Fumes may be
harmful or fatal to birds. Move birds to well-ventilated
room.
• Important Instruction – In the event the self-clean
mode “F” code goes on, or three long beeps sound,
oven is malfunctioning in the self-clean mode. Turn
off or disconnect appliance from power supply and
have serviced by a qualied technician.
VENTILATING HOODS:
• Clean Ventilating Hoods Frequently – Grease
should not be allowed to accumulate on hood or lter.
•
When aming foods under the hood, turn the fan on.
OVEN
• Use Care When Opening Door – Let hot air or
steam escape before you remove or replace food in
the oven
• Do Not Heat Unopened Food Containers – Build-
up of pressure may cause container to burst and
result in injury.
• Keep Oven Vent Ducts Unobstructed – the oven
vent is located in the front above the oven door and
under the cook top. This area could become hot
during oven use. Never block this vent and never
place plastic or heat sensitive items near the vent
• Placement of Oven Racks – Always place oven
racks in desired location while oven is cool. If rack
must be moved while oven is hot, do not let potholder
contact hot heating element in oven.
• Do Not allow aluminum foil or meat probe to contact
heating elements.
DEEP FAT FRYERS:
• Use extreme caution when moving the grease kettle
or disposing of hot grease.

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1. Precaution
This document can not be used without Samsung’s authorization.
1-4 Model & Serial Number Label and Tech Sheet Locations
This Model / Serial Number label and Tech Sheet locations are shown below.
Model & Serial
Number Location Tech Sheet Location
(On Top Rear Cover)

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2. Specications
2-1 Table of Specications
ITEMS BASIC MODEL NEW MODEL
Model Name NV51K6650DS NV51K7770DS
Category Double wall oven Double wall oven
Overall
Width 30" 30"
Installation type Built-In Built-In
Color availability STS STS
Control
Oven Touch KNOB+LCD
Display LED LCD
Electronic clock Yes Yes
Control lock capability Yes Yes
Audible preheat signal Yes Yes
Upper Oven
Capacity (cu.ft) 5.1 5.1
Broil element 4,400 watts 4,400 watts
Bake element 3,000 watt 3,000 watt
Convection system Yes Yes
Convection element 1,300 watt 1,300 watt
Steam element 500 watt / 120V 500 watt / 120V
# of Racks 3 4
Interior oven light 2 halogen, 2 door led 2 halogen, 2 door led
Cleaning Self-clean & Hybrid-clean Self-clean & Hybrid-clean
Lower Oven
Capacity (cu.ft) 5.1 5.1
Broil element 4,400 watts 4,400 watts
Bake element 3,000 watt 3,000 watt
Convection system Yes Yes
Convection element 1,300 watt 1,300 watt
Steam element - -
# of Racks 2 3
Interior oven light 2 halogen, 2 door led 2 halogen, 2 door led
Cleaning Self-clean & Hybrid-clean Self-clean & Hybrid-clean
Dimensions
Outside (W*D*H) 28 1/3 * 23 1/6 * 49 5/7
(720*588.2*1262.5)
28 1/3 * 23 1/6 * 49 5/7
(720*588.2*1262.5)
Cutout (W*D*H) 28 1/2 * 23 1/2 * 50 1/4
(724*597*1276)
28 1/2 * 23 1/2 * 50 1/4
(724*597*1276)
Shipping (W*D*H) 33 1/2 * 29 4/5 * 55 4/5
(850*757*1417)
33 1/2 * 29 4/5 * 55 4/5
(850*757*1417)
Net weight (kg) 123.6 135.6
Power Rating (240V 60Hz) 9,300W 10,600W

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2. Specications
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2-3 Accessory
Item Description Code No. Q’ty
RACK WIRE DG67-00124A 4
SENSOR-PROBE DG32-00013A 1
ASSY WIRE RACK DG94-01486A 2
ASSY-PARTITION FLEX DG94-01643A 1

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This document can not be used without Samsung’s authorization.
3. Disassembly and Reassembly
3-2 Removing Cover-Back Main Wire
PRECAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp
edges may be present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Cover-Back
Main wire
1. Turn off the electrical supply going
to the oven.
2. Pull the oven away from the wall so
that you can access the rear panel.
3. Remove 29(Upper back 16, Lower
back 14) screws from the Cover-
Back Main Wire and remove the
panel.
* Reassembly of All part is the reverse order of disassembly.
3-1 Preparing remove the Assy-Frame Wall oven
Item How to use Pictures
Screw driver Use for assembly and disassembly of all screws
Tubing Wrench Use for assembly and disassembly of tubing to the burner cup
7mm Vox Driver Use for assembly and disassembly of injector nozzles.
(Cooktop/Broil/Bake burner)
9mm Vox Driver Use for assembly and disassembly of injector nozzles.
(Convection Fan)
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect power before servicing the oven. Replace all panels before operating oven. Failure to do so
can result in death or electrical shock.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-3 Removing PCB-Main
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect power before servicing the oven. Replace all panels before operating oven. Failure to do so
can result in death or electrical shock.
PRECAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp edges may
be present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
PCB Main
(ASSY PCB
MAIN;
DE92-03960E,
DE92-04045B)
1. Turn off the electrical supply going
to the oven.
2. Pull the oven away from the wall
so that you can access the upper
panel.
3. To remove upper cover
a) remove each 2 screws from
upper cover of left and right side
b) remove 3 screws from upper
cover of upside
4.
There is 2 main PCB (printed circuit
board) on the top of the oven.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-4 Removing SMPS PCB
WARNING
Disconnect power before servicing the oven Replace all panels before operating oven. Failure to do so
can result in death or electrical shock.
PRECAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp edges may
be present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
SMPS PCB
(ASSY
MODULE;
DA92-00675A)
1. Turn off the electrical supply going
to the oven.
2. Pull the oven away from the wall
so that you can access the upper
panel.
3. To remove upper cover (See step 3
on 3-3)
a) remove 2 screws from upper
cover on the left and right side
b) remove 3 screws from from the
back of upper cover.
4. There is 1 SMPS PCB (printed
circuit board) on the top of the oven.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-5 Removing control box
WARNING
Disconnect power before servicing the oven Replace all panels before operating oven. Failure to do so
can result in death or electrical shock.
PRECAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp edges may
be present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Removing
control box
1. Unplug the cord or disconnect
power.
2. Open the oven door.
3. Remove 4 screws under the control
box.
4. Disconnect all of the wire harness
connectors.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-6 Removing Sub PCB
WARNING
Disconnect power before servicing the range Replace all panels before operating range. Failure to do so
can result in death or electrical shock.
PRECAUTION
When you work on the electric range, be careful when handling the sheet metal parts. Sharp edges may
be present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Sub PCB
(ASSY PCB
EEPROM;
DE94-03894B)
SUB LED
1. Turn off the electrical supply going
to the oven.
2. Remove 4 screws under the control
box. (See step 1 and 2 on page 14)
3. Remove 2 screws and connector on
SUB LED module.
4. Remove 2 screws and connector on
LED module.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-7 Removing Knob lighting module
WARNING
Disconnect power before servicing the range Replace all panels before operating range. Failure to do so
can result in death or electrical shock.
PRECAUTION
When you work on the electric range, be careful when handling the sheet metal parts. Sharp edges may
be present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Premium Plus
Knob Removal
1. Turn off the electrical supply going
to the oven.
2. Pull-out the Knob from the control
panel.
3. Remove 2 screws under the knob.
4. Remove control panel from oven.
(See step 1~4 on 3-5)
5. Remove knob controller from control
panel and disconnect wire harness
6. Remove 2 screws on the knob
holder.
7. Take off knob holder and knob
lighting module.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-8 Removing The Latch-Door & Switch-Door Plunger
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect power before servicing the oven. Replace all panels before operating oven. Failure to do so can
result in death or electrical shock.
CAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp edges may be
present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Latch-Door &
Switch- Door
Plunger
1. Turn off the electrical supply going
to the oven.
2. Open the oven door.
3. Remove 2 screws from the front of
cavity and remove the latch door &
bracket.
4. Remove 2 screws from the bracket
and remove the latch door:
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-9 Removing Heater-Broil
WARNING
Disconnect power before servicing the oven. Replace all panels before operating oven. Failure to do so
can result in death or electrical shock.
CAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp edges may be
present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Broil
1. Turn off the electrical supply going
to the oven.
2. Open the oven door and remove the
racks from inside the oven.
3. Remove oven from its mounting
location and remove the rear cover.
4. Remove 3 wires from the broil
element and 2 nut with cutting
insulation.
5. Remove 1 screw that are securing
the broil element to the cavity.
6. Remove the broil element.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-10 Removing Heater-Bake
Parts Explanation Photo Explanation
Heater-Bake
1. Disconnect power and remove oven
racks.
2. Pull the oven out of its mounting
location so that you can access the
rear of the unit.
3. Remove Cover-Back Main Wire
from the unit. (See step 3-2)
4. Remove oven door.
5. Unscrew 2 screws and remove
Cover-Casing.
6. Unscrew 2 screws and remove
Bracket-Convection Heater.
7. Unscrew nut of Fan-Convection,
and 2 Fan-Convection.
8. Unscrew 3 screws and disconnect
a Motor-Convection wire and
Heater-Convection-wire.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-11 Removing Convection Element, Fan-Convection and Motor-Convection
Parts Explanation Photo Explanation
Convection
Element,
Fan-
Convection,
Motor-
Convection
1.Disconnect power and remove oven
racks.
2.Pull the oven out of its mounting
location so that you can access the
rear of the unit.
3.Remove Cover-Back Main Wire
from the unit.
(See step 3 on page 10 for
procedure)
4.Remove oven door. (See Page 29
on page for procedure)
5.Unscrew 2 screws and remove
Cover-Casing.
6.Unscrew 2 screws and remove
Bracket-Convection
Heater to remove Heater-
Convection.
7.Unscrew nut of Fan-Convection,
and 2 Fan-Convection.
8.Unscrew 3 points and disconnect a
Motor-Convection
wire and disconnect Heater-
Convection wire.
* Reassembly of All part is the reverse order of disassembly.
CAUTION
Be careful not to bend the Fan-Convection(Blade)

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
CAUTION
Be careful not to scratch or chip the oven liner paint when to remove the oven light socket in the next step.
3-12 Removing Lamp
WARNING
Disconnect power before servicing the oven. Replace all panels before operating oven. Failure to do so can
result in death or electrical shock.
CAUTION
When you work on the electric oven, be careful when handling the sheet metal parts. Sharp edges may be
present, and you can cut yourself if you are not careful.
Parts Explanation Photo Explanation
Lamp
1. Disconnect power.
2. Remove oven door.
3. Remove Heater broil.
4. Pull-out the glass cover in the oven.
5. Unscrew cover lamp.
6. Pull-out the bulb.
* Reassembly of All part is the reverse order of disassembly.

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3. Disassembly and Reassembly
This document can not be used without Samsung’s authorization.
3-13 Removing Assy-partition switch
Parts Explanation Photo Explanation
Assy-partition
switch
1. Turn off the electrical supply going
to the range and pull the oven from
its mounting location.
2. Remove cover-back-main-wire
(See on 3-2) and disconnect the
wires from Assy-partition switch.
3. Remove 2 screws.
4. Replace the Assy-partition switch.
* Reassembly of All part is the reverse order of disassembly.