1 SCHEMATIC DIAGRAM
5
2 DESCRIPTION OF OPERATING SEQUENCE
6
2.1.
Variable power cooking control
6
2.2.
Inverter power supply circuit
6
2.3.
Inverter defrost
6
2.4.
Sensor cooking
6
2.5.
Sensor reheat
7
2.6.
Steam sensor and digital programmer circuit
7
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 8
3.1.
Check the grounding
8
3.2.
Inverter warnings
8
3.3.
Part replacement.
9
3.4.
When the 20A fuse is blown due to the malfunction of the
interlock monitor switch:
9
3.5.
Avoid inserting nails, wire etc. through any holes in the
unit during operation.
9
3.6.
Verification after repair
9
3.7.
Sharp edges
9
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 10
4.1.
Magnetron
10
4.2.
Digital programmer circuit (D.P.C), membrane key board
10
4.3.
Low voltage transformer and/or power relays (RL1)
11
4.4.
Fan motor
11
4.5.
Door assembly
11
4.6.
Turntable motor
12
4.7.
Steam sensor
12
4.8.
Inverter power supply
13
5 COMPONENT TEST PROCEDURE
14
5.1.
Primary, Secondary Interlock Switch & Power Relay RL1
14
5.2.
Interlock Monitor Switch
14
5.3.
Magnetron
14
5.4.
Inverter power supply (U)
15
5.5.
Temperature thermistor
15
6 MEASUREMENTS AND ADJUSTMENTS
16
6.1.
Adjustment of primary interlock switch, secondary interlock
switch and interlock monitor switch.
16
6.2.
Measurement of microwave output
16
7 PROCEDURE FOR MEASURING MICROWAVE ENERGY
LEAKAGE
17
7.1.
Equipment
17
7.2.
Procedure for measuring radiation leakage
17
7.3.
Record keeping and notification after measurement
17
7.4.
At least once a year, have the radiation monitor checked
for calibration by its manufacturer.
18
8 TROUBLESHOOTING GUIDE
19
8.1.
(Troubleshooting) Oven stops operation during cooking 20
8.2.
(Troubleshooting) Other problems
21
8.3.
Troubleshooting of inverter circuit (U) and magnetron 22
8.4.
Trouble related to Digital Programmer Circuit
23
8.5.
SIMPLE WAY OF H.V. INVERTER/MAGNETRON
TROUBLESHOOTING
26
8.6.
H.V.INVERTER BOARD MAIN PARTS LIST
(F606Y9X90AP)
26
8.7.
How to check the semiconductors using an OHM meter
27
9 EXPLODED VIEW AND PARTS LIST
28
9.1.
EXPLODED VIEW
28
9.2.
PARTS LIST
29
9.3.
ESCUTCHEON BASE ASSEMBLY
30
9.4.
DOOR ASSEMBLY
35
9.5.
WIRING MATERIALS
36
9.6.
PACKING AND ACCESSORIES
37
10 DIGITAL PROGRAMMER CIRCUIT
38
10.1. SCHEMATIC DIAGRAM (NN-SE795S)
38
10.2. SCHEMATIC DIAGRAM (NN-ST785S/ST775S/ST765S) 41
10.3. SCHEMATIC DIAGRAM (NN-SD765S/SD755S)
43
10.4. PARTS LIST
45
CONTENTS
Page
Page
4
NN-SE795S / NN-ST785S / NN-ST775S / NN-ST765S / NN-SD765S / NN-SD755S
Содержание NN-SE795S
Страница 2: ...2 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 3: ...3 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 5: ...1 SCHEMATIC DIAGRAM 5 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 28: ...9 EXPLODED VIEW AND PARTS LIST 9 1 EXPLODED VIEW 28 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 39: ...39 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 40: ...40 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 41: ...10 2 SCHEMATIC DIAGRAM NN ST785S ST775S ST765S 41 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 42: ...42 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 43: ...10 3 SCHEMATIC DIAGRAM NN SD765S SD755S 43 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
Страница 44: ...44 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...
