Panasonic NN-A872SBBPQ User manual

Order Number: MOP02090053S2
Microwave Oven
NN-A872SBBPQ
32l Enamel
Stainless Steel
United Kingdom
Please fileand use thismanual together with the service manual for
Model Nos. NN-A850CB, Order Number MOP0090015C2
SPECIFICATIONS
1995 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1

1. PARTS LIST
Whenordering parts quote the complete part number. Donot quote the description of the part
without the part number.
Components identifiedbythe symbol have special safetycharacteristics, onlyreplace these
parts withparts suppliedbythe original manufacturer.
Forparts not showninthis simplifiedservice-manual, refertothe service-manual parts list for
the model NN-A850CBBPQ
Ref. No. PartNo. PartName& Description Qty
Remarks
75 E110D4V30SBP OUTER PANEL 1
2. DOOR ASSEMBLY
2

Ref. No. PartNo. PartName& Description Qty Remarks
D1 E302A4V30SBP DOOR ASCREEN B FACIAASSEMBLY 1
3. ESCUTCHEON BASE ASSEMBLY
3

Ref. No. PartNo. PartName& Description Qty Remarks
E1 E80724V30SBP DOOR OPENING BUTTON 1
E2 AEE80378A1AG DOOR OPENING BUTTON SPRING 1
E3 E800S4V30SBP ESCUTCHEON BASE ASSEMBLY 1
4. PACKING AND ACCESSORIES
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Ref. No. PartNo. PartName& Description Qty Remarks
P3 E06435870SP WIRERACK FOOT 1
P4 E060V5870SP WIRERACK 1
P5 E01089000GP TRAYPACKING 1
P11 E00034V30BT COOKBOOK/OPERATING INSTRUCTIONS 1
5

Order Number MOP00090015C2
Microwave Oven
NN-A880WB / NN-A850WB / NN-A850CB
SPECIFICATIONS
1995 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1

1. Inverter Warning
The inverterboardlooks like a regularPCB, however, this PCB drives the magnetron tube using
veryhigh voltages and current.
It has
1. Veryhigh voltage and high current
2. AnAluminium heat sink that becomes veryhot
3. The capacitors on the inverter circuitwill containahigh voltage
charge even when the oven isnot operating.
Donot
1. Donot touch the circuitryas itcontains veryhigh voltages. When
replacing the board please take extreme care to avoidpossible
electricshock. High voltages mayremaininthe circuit.
2. Donot touch the aluminium heat sink as itwill become veryhot. It
also contains high voltages.
3. Donot attempt to repairthe inverter PCB as thiscan be very
dangerous. Replace the high voltage inverter circuitas acomplete
unit. Return the oldunitfullyrepacked inthe original shipping
box and completed paper work.
4. Donot adjust or tamper with the preset volume on the inverter
board. Itisverydangerous to adjust thispreset without proper
test equipment.
5. Donot test the oven whilethe inverter grounding stripor screws
are loose. Itisverydangerous to operate the inverter circuitboard
without aproper ground connection.
Figure 1
2

InverterGounding
Figure 2
InverterPCB layout
2. Feature Chart
3

Function NN-A880WB NN-
A850WB NN
-A850CB
Microwave 6 6
Grill 3 3
Convection 17 17
Combination YES YES
Sensorreheat 2 -
Sensorcook 2 -
Sensorcombination 4 -
Weight defrost 3 3
Weight combination 8 12
Weight reheat - 2
Weight cook - 2
Stage cooking 3 3
Delay/Stand YES YES
More/Less YES NO
Kg-> lb/oz YES YES
Clock 12H 12H
Wordprompt English English
Function NN-A880WB NN-
A850WB NN
-A850CB
StepbyStep LED LED
3. Control Panel
4

4. Operation And Digital Programmer Circuit Test
Procdure
5