Panasonic NN-A890WB User manual

Order Number MOP00100021C2
Microwave Oven
NN-A890WB / NN-A860WB
SPG Scandinavian Countries
WPG Switzerland
SPECIFICATIONS
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2000 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
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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
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InverterGounding
Figure 2
InverterPCB layout
2. Feature Chart
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Function NN-A890WB
SPG/WPG NN-A860WB SPG/WPG
Microwave 6 6
Grill 3 3
Convection 17 17
Combination YES YES
SensorReheat 2 -
SensorCook 6 -
SensorCombination 1 -
SensorCrisp 1 -
Weight Defrost 2 2
Weight Combination 6 6
Weight Reheat - 2
Weight Cook - 6
MemoryCook 1 1
Weight Crisp - 2
Stage Cooking 3 3
Delay/Stand YES YES
More/Less YES NO
Clock 24H 24H
Function NN-A890WB
SPG/WPG NN-A860WB SPG/WPG
WordPrompt * *
StepbyStep LED NONE
*None, Danish, English
3. Control Panel
4. Operation And Digital Programmer Circuit Test
Procedure
4.1. Word Prompting
4.2. Setting the Clock
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4.3. Microwave Cooking
4.4. Auto Weight Defrost
4.5. DelayStand
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4.6. DelayStart
4.7. ChildLock
4.8. Grill Operation
4.9. Convection Operation
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4.10. Turbo Bake Operation
4.11. Combination Cooking (Convection and Microwave)
4.12. Combination Cooking (Grill and Microwave)
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4.13. Combination Cooking (Turbo Bake and Microwave)
4.14. Memory
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