Panasonic NN-A750WB User manual

Order Number MOP00080014C2
Microwave Oven
NN-A750WB / NN-A720MB / NN-A770SB
27L
WHITE SILVERSTAINLESS
United Kingdom
SPECIFICATIONS
Specification
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Power Source 240VAC Singlephase, 50Hz
Power Requirements Micro1260WGrill 1360WConv1470w
Combi 2770W
Output (IEC705-88) Micro1000WGrill 1300WConv1400W
Microwave
Frequency 2450MHz
Timer 99 Minutes 99 Seconds
OvenCavitySize 27L
OutsideDimensions 510mm(W) x477mm(D) x314mm(H)
InsideDimensions 359mm(W) x352mm(D) x217mm(H)
Weight 15Kg
1995 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
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test equipment.
5. Donot test the oven whilethe inverter grounding stripor screws
are loose. Itisverydangerous to operate the inverter circuitboard
with out aproper ground connection.
Figure 1
InverterPowerSupplyDiagram
Figure 2
InverterLayout
2. Feature Chart
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Function
Microwave 6
Grill 3
Convection 17
Combination YES
Weight Defrost 3
Weight Combination 8
Weight Reheat 4
Weight Cook 2
Stage Cooking 3 Stage
Delay/ Stand Yes
Kglb./oz. Yes
Clock 12 Hour
WordPrompt English
3. Control Panels
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4. Operation And Digital Programmer Circuit Test
Procedure
4.1. Setting The Clock
1. Plug the power supplycord into the wall outlet
2. Press the clock pad
3. Enter the time of the day
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4. Press the clock pad
4.2. Microwave Cooking
1. Place awater load inthe oven
2. Press Micro power once to set high power
3. Set time at 5sec. bypressing
1sec. pad 5times
4. Press Micro power pad 3times to set medium power
5. Set pad for 1minute bypressing 1min. pad once
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6. Press the start pad
7. When the first stage cooking has elapsed oven automatically
switches to second stage
8. When second stage cooking has elapsed oven bleeps 5times and
shuts off
4.3. Auto Weight Defrost
1. Select the desired program
2. Press gor lb. and oz.
3. Enter the weight bypressing the Up&DownPads.
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4. Press Start
4.4. DelayStand
1. Set power level and time
2. Press Stand
3. Set standing time
4. Press Start
4.5. DelayStart
1. Press delay
2. Set delaytime
3. Set power level and time
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4. Press start pad
4.6. Grill Operation
1. Select grill power press once for grill 1
2. Set cooking time
3. Press start
4.7. Convection Operation
1. Press convection pad to select oven temperature
2. Press start to preheat
3. Press time pads to enter cooking time
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