DOWNLOAD Panasonic NN-S551WF / NN-S451WF / NN-K571MF Service Manual ↓ Size: 1.63 MB | Pages: 20 in PDF or view online for FREE

Model
NN-S551WF NN-S451WF NN-K571MF
Pages
20
Size
1.63 MB
Type
PDF
Document
Simplified Service Manual
Brand
Device
Home Appliance / MICROWAVE OVEN
File
nn-s551wf-nn-s451wf-nn-k571mf.pdf
Date

Panasonic NN-S551WF / NN-S451WF / NN-K571MF Simplified Service Manual ▷ View online

Service Manual
ORDER NO. SIMMC 0107015A3
Microwave Oven
Specifications:
Power Source:
Power
Microwave
Requirement: Heater
Output:
Microwave (ICE 705)
Heater
Microwave Frequency:
Timer:
Outside Dimensions:
Oven Cavity Dimensions:
Weight:
Output power: IEC705-88 Test Procedure
Specifications subject to change without notice.
Specifications:
Models:
240V AC Single Phase, 50Hz ........................ For KNQ Models
230V~240V AC Single Phase, 50Hz .............. For QPQ, MNQ, YNQ Models
220V AC Single Phase, 50Hz ........................ For HNE, TNE, YKE, KKE, ZPE, RPE Models
220V~230V AC Single Phase, 60Hz .............. For LNK Models
220V AC Single Phase, 50/60Hz ................... For SNM Models
220V AC Single Phase, 60Hz ........................ For RPK Models
2450MHz
NN-S551WF
simplified
Please file and use this specified manual together with the service manual for model NN-S650WF (ORDER NO. SIMMC 0007014C3)
or model NN-S560WF (ORDER NO. SIMMC 0006012C3) & model NN-K366WF (ORDER NO. SIMMC 9703002C3)
DESTINATION
MODELS
NN-S551WF NN-S451WF NN-K571MF
QPQ
HNE
TNE
YKE
MNQ
YNQ
LNK
KKE
KNQ
SNM
ZPE
RPE
RPK
1100W~1150W
1000W
1150W
1000W
1100W
1100W~1300W
1000W
1100W
99 min. 90 sec.
99 min. 90 sec.
99 min. 59 sec.
510(W)=ñ=378(D)=ñ=300mm(H)
510(W)=ñ=378(D)=ñ=306mm(H)
330(W)=ñ=330(D)=ñ=200mm(H)
330(W)=ñ=330(D)=ñ=200mm(H)
11.2 kg
11.2 kg
12 kg
NN-S451WF
NN-K571MF
S551WF/S451WF/K571MF
2001.10.12, 11:33
Page 1
Adobe PageMaker 6.5C/PPC
WARNING
CONTENTS
     (Page)
- 2 -
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EXPOSURE
TO EXCESSIVE MICROWAVE ENERGY
(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, waveguide 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 trans-
mission 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.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.  It does not
contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians.  Any attempt to service or repair
the product or products dealt with in this service information by anyone else could result in serious injury or death.
>
1. This product should be serviced only by trained, qualified personnel.
2. Check for radiation leakage before and after every servicing according to the “procedure for measuring radiation leakage.”
3. If the unit cannot be repaired on site, advise the customer not to use until unit is repaired.
4. There are special components used in the microwave oven which are important for safety. These parts are marked with
a      on the replacement parts list. It is essential that these critical parts should be replaced only with the manufacture’s
specified parts to prevent microwave leakage, shock, fire, or other hazards. Do not modify the orginal design.
This service manual covers products for following markets.
When troubleshooting or replacing parts, please refer to the country/area identifications shown below for your
applicable product specification.
>
SCHEMATIC DIAGRAMS ...................................................................... 4
CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING ........... 6
MEASUREMENTS AND ADJUSTMENTS ............................................. 8
EXPLODED VIEW AND PARTS LIST .................................................... 9
SCHEMATIC DIAGRAM &
PARTS LIST OF DIGITAL PROGRAMMER CIRCUIT ......................... 16
QPQ ......................................... For Australia, New Zealand
HNE ......................................... For Hong Kong
YNQ ......................................... For Singapore
MNQ ......................................... For Malaysia
TNE .......................................... For Thailand, Indonesia
LNK .......................................... For Philippines
YKE .......................................... For Others
KKE .......................................... For UAE, Egypt, Iran
KNQ ......................................... For Kuwait, Doha, Qatar
Oman, Bahrain, Pakistan
SNM ......................................... For Saudi Arabia
ZPE .......................................... For CIS Countries
RPE .......................................... For Peru
RPK .......................................... For Chile
S551WF/S451WF/K571MF
2001.10.12, 11:33
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Adobe PageMaker 6.5C/PPC
DANGER OF HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LIVE) OF THE INVERTER POWER SUPPLY 
(U)
INVERTER WARNING
This Inverter board looks like a regular PCB.  However, this PCB drives the magnetron tube with extremely high voltage
and high current.
IT HAS:   1.
Very high voltage and high current circuits.
It functions the same as the high voltage transformer and high voltage capacitor in ordinary microwave ovens.
2.
Aluminum heat sink is energized with very high voltages and high heat energy.
3.
Very high voltage may remain in circuitry even when oven is off.  High voltage may remain in the capacitors
on the board.
DO NOT:
1.
Do not touch circuitry because it has very hot (high voltage) circuitry.  Even when replacing board, extreme
care should be taken to avoid possible electric shock hazards.  High voltage may remain in circuit.
2.
Do not touch aluminum heat sink because it is very hot in high voltage and also very hot in high heat energy.
3.
Do not try to adjust or tamper with preset volume on the Inverter board because it is very dangerous to
adjust without proper test equipment.
4.
Do not test oven while Inverter grounding plate or screws are loose.  It is very dangerous to operate H.V.
Inverter Circuit (U) with loose mounting screws or if improperly grounded.
5.
For USA only:
Do not try to repair Inverter PCB because it is very dangerous to repair it.  Replace as whole High Voltage
Inverter Circuit unit and return fully re-packed with original shipping box and shipping materials.
INVERTER POWER SUPPLY
- 3 -
*
*
*
*
*
HEAT SINK
(RECTIFIER BRIDGE)
CHOKE COIL
CURRENT
TRANSFORMER
SAND BAR
RESISTOR
HIGH VOLTAGE
TRANSFORMER
PCB
FILM CAPACITORS
VARISTOR
PRIMARY WINDINGS
SECONDARY
WINDINGS
HIGH VOLTAGE
DIODES
DO NOT TOUCH
H.V INVERTER(U)
GROUNDING
PLATE
NEW HV
INVERTER
BACKET
S551WF/S451WF/K571MF
2001.10.12, 11:33
Page 3
Adobe PageMaker 6.5C/PPC
V-16G-3C25
L-3C2-2
or
D3V
-16G-3C25
L-2C2-2
or
D3V
-1G-2C25
BR
B
B
OR
GR
BR
BR
BL
W
Y
R
R
B
B
Y
(Y)
BR
(W)
(W)
NEW H.V.
SCHEMATIC DIAGRAM
- 4 -
NN-S551WF/S451WF
WIRING DIAGRAM
(S-5G2)
AC220V-240V
50Hz/60Hz
NOISE FILTER (U)
SW2
SW3
SW4
INVERTER
MAGNRTRON
POWER
RELAY A
(RY2)
POWER
RELAY B
(RY1)
C4
C1
Y/G
BL
C2
C3
L1
TT
F
10 A
PRIMARY
LATCH
SWITCH
T
L
CAUTION:
HIGH VOLTAGE AREA
POWER RELAY B (RY1)
HIGH VOLTAGE INVERTER
S551WF/S451WF/K571MF
2001.10.12, 11:33
Page 4
Adobe PageMaker 6.5C/PPC
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Panasonic NN-S551WF / NN-S451WF / NN-K571MF Simplified Service Manual ▷ Download

  • DOWNLOAD Panasonic NN-S551WF / NN-S451WF / NN-K571MF Service Manual ↓ Size: 1.63 MB | Pages: 20 in PDF or view online for FREE
  • Here you can View online or download the Simplified Service Manual for the Panasonic NN-S551WF / NN-S451WF / NN-K571MF in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic NN-S551WF / NN-S451WF / NN-K571MF Home Appliance. Information contained in Panasonic NN-S551WF / NN-S451WF / NN-K571MF Simplified Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.