Samsung NZ63K7777BK User manual

INDUCTION HOB
SERVICE Manual
INDUCTION HOB CONTENTS
1. Precaution
2. Product Specication
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagrams
6. Wiring Diagrams
BASIC : NZ63K7777BK
MODEL : NZ64K5747BK
MODEL CODE : NZ64K5747BK/EF
NZ64K5747BK/EU
NZ64K5747BK/EO
NZ64K5747BK/EE
NZ64K5747BK/WT
NZ64K5747BK/ET
INDUCTION HOB
NZ64K5747BK

Contents
1. General Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Specications .......................................................................... 2
2-1 Induction Heating .................................................................... 2
2-2 Features ........................................................................... 2
2-3 Table of Specication ................................................................. 3
2-4 Accessory .......................................................................... 4
2-5 Installing the hob .................................................................... 5
3. Disassembly and Reassembly ............................................................. 8
3-1 Tools for Removal and Reassembly ...................................................... 8
3-2 Replacement of the Assy Top Plate ...................................................... 9
3-3 Replacement of the Assy Control Panel ................................................... 9
3-4 Replacement of the Working Coil ...................................................... 10
3-5 Replacement of the PBA ............................................................. 12
3-6 Replacement of the POWER CABLE .................................................... 14
4. Troubleshooting ........................................................................ 15
4-1 Part Checking method ............................................................... 15
4-2 DEMO mode ...................................................................... 16
4-3 Failure Codes ...................................................................... 17
4-4 Electrical Malfunction ................................................................ 28
4-5 Auto Function Check Test ............................................................ 30
5. P.C.B Diagrams ........................................................................ 31
5-1 P.C.B Diagrams : Touch (Control) PCB .................................................. 31
5-2 P.C.B Diagrams : SMPS PCB ......................................................... 32
5-3 P.C.B Diagrams : Inverter PCB ........................................................ 33
6. Wiring Diagrams .......................................................................35
Contents

- 1 -
This document can not be used without Samsung’s authorization.
1. General Safety Precautions
1. Information contained in this manual is intended for
use by a qualied service technician. The technician
is required to be familiar with proper and safe proce-
dures to be followed when repairing appliance.
All tests and repairs are to be performed using
proper tools and measuring devices. All component
replacements should be made using only factory
approved replacement parts.
2. Electrical shock and injury can result if service or
repairs are attempted by an unqualied individual.
Improper disassembly, assembly or adjustments
can create hazardous conditions.
3. Even for a skilled technician, a risk of injury or
electrical shock exists while performing service or
repairs. Electrical injury can be serious or fatal.
Extreme caution must taken when performing
voltage checks on individual components of an
appliance.
NOTE
Except as necessary to perform a particular
step in servicing a product, the electrical power
supply should always be disconnected when
servicing a product.
4. To avoid possible injury, the appliance must be
properly grounded. Never plug in or direct wire an
appliance unless it is properly grounded. See the
installation instructions that originally accom-
panied the product for proper grounding proce-
dures.
5.The ventilation gap between the worktop and front of
the unit underneath it must not be covered.
6. Before connecting, check that the nominal voltage
of the appliance, that is, the voltage stated on the
rating plate, corresponds to the available supply
voltage. The rating plate is located on the lower
casing of the hob.
7. The heating element voltage is AC230V~. The
appliance also works perfectly on networks with
AC220V~ or AC240V~.
8. The hob is to be connected to the mains using a
device that allows the appliance to be disconnected
from the mains at all poles with a contact opening
width of at least 3 mm, eg. automatic line protecting
cut - out, earth leakage trips or fuse.
9. Pay attention (conformity) to phase and neutral
allocation of house connection and appliance
(connection schemes); otherwise, components can
be damaged.
Warranty does not cover damage resulting from
improper installation.
If the supply cord is damaged, it must be replaced
by a special cord or assembly available from the
manufacturer or its service agent.
01
02
03
04 06
05
L N
1N~ (32A)
01 220-240 V ~ 04 Blue
02 Brown 05 Gray
03 Black 06 Green/Yellow
01
02
03
04
05 07
06
L1 L2 N
2N~ (16A): Separate the 2-phase wires
(L1 and L2) before connection.
01 220-240 V ~ 05 Blue
02 380-415 V ~ 06 Gray
03 Brown 07 Green/Yellow
04 Black
01 04
02
03
05
06
07
L1 N1 L1 N2
2 x 1N~ (16A): Separate the wires before
connection.
01 220-240 V ~ 05 Black
02 Brown 06 Gray
03 Blue 07 Green/Yellow
04 220-240 V ~

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2. Specications
2-1 Induction Heating
Model Name Basic Model New Model
NZ63J9770EK NZ64K5747BK
Product Type Induction Hob Induction Hob
Glass Ceramic Glass Ceramic Glass
Control Method Touch Sensor Touch Sensor
Residual Heat Indicator Yes Yes
Safety Shutoff Yes Yes
Pan Detection Yes Yes
Install Type Built-In Built-In
Design 1Bevel 1Bevel
Electric Features
Burner Power
Front Left 1,800W/Boost 2,600W
Rear Left 1,800W/Boost 2,600W
Flex Front 1,800W/Boost 2,600W
Flex Rear 1,800W/Boost 2,600W
Rear Right - 1,400W/Boost 2,000W
Front Right 2,200W/Boost 3,200W 2,200W/Boost 3,200W
Flex zone 3,300W/Boost 3,600W 3,300W/Boost 3,600W
Burner Size
Rear Right - 145mm
Front Right 200mm 210mm
2-2 Features
• The Principle of Induction Heating: When you place your cookware on a cooking zone and you turn it on, the electronic
circuits in your induction hob produce “induced currents” in the bottom of the cookware which instantly raise cookware’s
temperature.
Induction coil
Induced currents
Electronic circuits
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- 3 -
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Model Name Basic Model New Model
NZ63J9770EK NZ64K5747BK
Control Features
Sound on/off Headen Lock Yes Yes
Power Level 1~15 level 1~15 level
Timer Kichen Timer Yes Yes
Alarm Yes Yes
Power Control 15+Booster 15+Booster
Direct Access +/-1 Yes Yes
Power On/Off Yes Yes
Ready Pan Flex Zone Yes No
Keep Warm +/-1 Yes Yes
Pause Yes Yes
Quick Start Yes Yes
Quick Stop Yes Yes
Demo Mode Yes Yes
2. Specications
2-3 Table of Specication
Model Name Basic Model New Model
NZ63J9770EK NZ64K5747BK
Electrical Connection 220~240V, 50/60Hz 220~240V, 50/60Hz
Rated voltage 2N : 380~415V, 50/60Hz 2N : 380~415V, 50/60Hz
Mains-connection 1N : 220~240V, 50/60Hz 1N : 220~240V, 50/60Hz
Output Power Max 6,800W Max 7,200W
"Outside Dimensions (WxLxH)" 600 x 520x 56 mm 600 x 520x 56 mm
Net Weight 13.5kg 12.7kg
Gross Weight 16.5kg 15.5kg
Export Zone EU EU

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2-4 Accessory
Bracket Spring

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2-5 Installing the hob
2-5-1 Installing into the countertop
A
A. Serial number
NOTE
Make a note of the serial number on the
appliance rating label prior to installation.
This number will be required in the case
of requests for service and is no longer
accessible after installation, as it is on the
original rating plate on the underside of the
appliance.
NOTE
Pay special attention to the minimum space and clearance requirements.
NOTE
The bottom of the hob is equipped with a fan. If there is a drawer under the hob
it should not be used to store small objects or paper, since they could damage the
fan or interfere with the cooling if they are sucked into it.
01
02
No. Explanation Size
01 Height of
ventilation hole Min 2 mm
02 Width of
ventilation hole 560 mm
04
05
06
07 08
09
10
11
12
02
03
01
No. Explanation Size
01 Check 4 Point
02 Drill diameter Ø 6
03 Right angle of cutting point 90 °
04 Width Size 560±1 mm
05 Height Size 490±1 mm
06 Curve Size R3
07 Size of table thickness
Max 50 mm,
Min 20 mm
08 Distance between end of table and cutting point (Top-side) Min 60 mm
09 Height of table Min 600 mm
10 Distance between end of table and cutting point (Left-side) Min 60 mm
11 Distance between end of table and cutting point (Right-side) Min 60 mm
12 Distance between end of table and cutting point (Bottom-side) Min 50 mm

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2-5 Installing the hob
06 07 08
04
02
05
01 03
No. Explanation Size
01 Distance between wall and Induction Min 40 mm
02 Size of depth of Induction 520 mm
03 Distance between Induction and end of table Min 40 mm
04 Distance between glass and case burner 25 mm
05 Distance between glass and case burner 15 mm
06 Distance between wall and case burner. Min 60 mm
07 Size of depth of case burner 480 mm
08 Distance between case burner and end of table Min 50 mm
05
02
01
03 04
No. Explanation Size
01 Width of rear
ventailation Min 550 mm
02 Height of rear
ventaliation Min 35 mm
03 Depth of power
cord path Min 65 mm
04 Width of power
cord path Min 100 mm
05 Height of block
board Min 5 mm
01
02
03
No. Explanation Size
01
Size of Ventaliation
Min 20 mm
02 Min 2 mm
03 Min 20 mm

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2-5 Installing the hob

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3. Disassembly and Reassembly
3-1 Tools for Removal and Reassembly
Tool
1. Tool : Longnose
2. Remarks : PBA hook
1. Tool : Driver
2. Type : ( + )
3. Remarks : SCREW

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3-2 Replacement of the Assy Top Plate
3-3 Replacement of the Assy Control Panel
Parts Explanation Photo Explanation
Assy Top Plate
(Ceramic Glass)
1. Disconnect power.
2. Remove 4 - side direction 16 Screws
securing the Assy Top Plate to the Assy
Case Burner.
3. Raise the Assy Top Plate.
4. After replacement of the Assy Top Plate,
Screw the Assy Top Plate to the Assy Case
Burner.
Parts Explanation Photo Explanation
Assy Control Panel
1. Lift up the Control Panel Assy.
2. Disconnect all connectors.
3. Control PBA is xed by double-faced tape.
Separate Control PBA from Support PCB.
Attention
The Ceramic Glass may break if you use force especially on the edge.

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3-4 Replacement of the Working Coil
Explanation Photo
COIL WORKING 145
COIL WORKING 210
COIL WORKING FLEX
Parts Explanation Photo Explanation
Working Coil 1. Bend the Cover-Coil a little.

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Parts Explanation Photo Explanation
Working Coil
2. Remove Screws securing the
Working-Coil
3. Disconnect all lead wires from the
Assy-Working Coil.
pull & rotate
4. For the replacement of Sensor-Top,
pull the Sensor-Top toward bottom
side.
5. Rotate the Sensor-Wire by
90degree until the Sensor-Top can
be remove from the Coil-Working.
3-4 Replacement of the Working Coil

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Parts Explanation Photo Explanation
PBA
1. Remove all screws securing the
CASE-INDUCTION.
2. Disconnect all wires from the
WORKING-COIL.
3. Remove the CASE-INDUCTION.
4. Disconnect all wires from the
PBA.
3-5 Replacement of the PBA

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3-5 Replacement of the PBA
Parts Explanation Photo Explanation
PBA
5. Remove all screws securing the
PBA.
6. The PBA is xed in place by a
series of hooks.
Remove these using a tool
Then remove the PBA.

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Parts Explanation Photo Explanation
Power Cable
1. Remove screws securing the GND
WIRE and HOLDER-CABLE.
2. Remove locking holder.
3. Pull the POWER CABLE outwards
to remove it from the socket.
01
02
03
04 06
05
L N
1N~ (32A)
01
220-240 V ~
04
Blue
02
Brown
05
Gray
03
Black
06
Green/Yellow
01
02
03
04
05 07
06
L1 L2 N
2N~ (16A): Separate the 2-phase wires
(L1 and L2) before connection.
01
220-240 V ~
05
Blue
02
380-415 V ~
06
Gray
03
Brown
07
Green/Yellow
04
Black
01 04
02
03
05
06
07
L1 N1 L1 N2
2 x 1N~ (16A): Separate the wires before
connection.
01
220-240 V ~
05
Black
02
Brown
06
Gray
03
Blue
07
Green/Yellow
04
220-240 V ~
4. After nishing service, connect the
power cable properly to main power
supply.
3-6 Replacement of the POWER CABLE

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4. Troubleshooting
4-1 Part Checking method
Parts Photo Good No Good
SENSOR TEMP
(DG32-00015A)
20˚C : 292.9kΩ
40˚C : 118.7kΩ
60˚C : 52.76kΩ
80˚C : 25.38kΩ
The others
IGBT Sensor
(DE95-00001A)
20˚C : 57.9KΩ ~ 65.5KΩ
25˚C : 46.4KΩ ~ 52.2KΩ
30˚C : 37.5KΩ ~ 41.9KΩ
The others
Coil-Working 0.01~1Ω 100MΩ exceed
- 15 -

- 16 -
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4-2 DEMO mode
This mode is for Shop display.
At this mode, user can only operate touch key button without burner power on.
1. Touch Lock key for 3 seconds.
2. Touch Timer key for 3 seconds. An acoustic signal will sound.
3. Touch Pause key for 3 seconds within 10 seconds. An acoustic signal will sound.
4. Demo mode will be activated.
5. To exit the Demo mode, repeat No.1 ~ 3 procedure.

- 17 -
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4-3 Failure Codes
4-3-1 Temp Sensor Information
Information
Code Solution Page
Top Sensor Open Information (Sensor-Top)
It occurs due to a defective sensor, misplaced wires, a defective PCB and
when A/D value that MICOM senses rises over 252.
Also, it may occur when the ambient temperature falls under -10˚C.
18 Page
Top Sensor Short Information (Sensor-Top)
It occurs due to a defective sensor, misplaced wires, a defective PCB and
when A/D value that MICOM senses falls under 10.
19 Page
IGBT Sensor Open Information (Assy-Inverter Module)
It occurs due to a defective sensor, misplaced wires, a defective PCB and
when A/D value that MICOM senses rises over 239.
Also, it may occur when the ambient temperature falls under -10˚C.
20 Page
IGBT Sensor Short Information (Assy-Inverter Module)
It occurs due to a defective sensor, misplaced wires, a defective PCB and
when A/D value that MICOM senses falls under 10.
21 Page
4-3-2 Safety Information
Information Code Gerneral Function Solution Page
Touch Button Short
Information
It occurs when the control panel’s sensor eld is shorted
for more than 8 seconds.
ex: No.1 Place a damp cloth on the control panel.
No.2 Liquid boils over and lands on the control panel.
No.3 More than one key is pressed for more than
8 seconds.
No.4 Defective Assy-Touch PCB
22
Page
Touch key data
Information It occurs when the Touch key data at Display PCB is inter-
rupted, due to some noise, defects of Display PCB.
23
Page
Over Temperature
Information
It occurs when the temperature of the Top Sensor rises
very highly.
(Estimated temperature of ceramic glass’s surface is
more than 250˚C.)
ex: Place a empty cookware on the burner and operate the
hob.
24
Page
Pan Detection
Information
It occurs when the cookware is unsuitable or too small or
no cookware has been placed on the cooking zone.
If the suitable cookware is placed again, the hob will oper-
ate normally.
25
Page
DC Motor Locking
Information It occurs when the DC Motor cannot operate due to defects
of PCB, wiring or some disturbance on motor blade.
26
Page
Communications
between main
It occurs when the Main PCB and sub PCB not
communication.
27
Page

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: check if the sensor wire is damaged,
if the sensor housing is inserted into
the connector of the PCB.
YES
YES
NO
NO
NO
YES
YES
NO
Top Sensor Open Information ( )
Is the sensor wire
connected properly
by burner position?
Is the sensor's real
resistance a opened
circuit?
Connect the sensor.
Replace the wire.
Connect the wire
properly.
S/W Information
Is the sensor connected?
The sensor has defect.
Replace the sensor.
Replace the Assy Touch PCB.
Perform the operation again and check
if it is working properly.
After Power -> On, does
the symptom continue?
4-3-3