Page 2 - CONTENTS
1 CONTROL PANEL 4 2 OPERATION PROCEDURE 5 3 SCHEMATIC DIAGRAM NE-3280 (USA) 9 4 WIRING DIAGRAM NE-3280 (USA) 10 5 SCHEMATIC DIAGRAM NE-2180C (CANADA) 11 6 WIRING DIAGRAM NE-2180C (CANADA) 12 7 SCHEMATIC DIAGRAM NE-2180 (USA) 13 8 WIRING DIAGRAM NE-2180 (USA) 14 9 DESCRIPTION OF OPERATING SEQUENCE 15...
Page 4 - CONTROL PANEL
Page 5 - OPERATION PROCEDURE
2 OPERATION PROCEDURE 5 NE-3280 / NE-2180 / NE-2180C
Page 15 - DESCRIPTION OF OPERATING SEQUENCE
Variable power cooking control The coil of power relays are energized intermittently by thedigital programmer circuit, when the oven is set at any powerselection except for High power position . The digital programmer circuit controls the ON-OFF time of the powerrelays contacts in order to vary the ...
Page 16 - 0 CAUTIONS TO BE OBSERVED WHEN
Unlike many other applian ces, the microwave oven is high-voltage, high-current equipment. Though it is free from dangerin ordinary use, extreme care should be taken during repair. CAUTION Servicemen should remove their watches whenever working close to orreplacing the magnetron. 10.1. Check the gro...
Page 17 - 1 DISASSEMBLY AND PARTS REPLACEMENT
10.6. Confirm after repair 1. After repair or replacement of parts, make sure that the screws of the oven, etc. are neither loose nor missing. CAUTION Servicemen should remove their watches whenever working close to orreplacing the magnetron. 11.1. Magnetrons (Upper and Lower) Upper magnetrons (Righ...
Page 18 - board
11.2. Digital programmer circuit board 1. Remove grounding screw for membrane switch and D.P.C. ground. 2. Remove 2 screws holding control panel assembly to detach it from main unit then remove connectors. 3. Remove 2 screws holding the D.P.C. board and remove the board by freeing catch hooks. NOTE:...
Page 21 - 2 COMPONENT TEST PROCEDURE
CAUTION 1. High voltage is present at the high voltage terminal of the highvoltage transformer during any cook cycle. 2. It is neither necessary nor advisable to attempt measurement ofthe high voltage. 3. Before touching any oven components, or wiring, always unplugthe oven from its power source and...
Page 23 - 3 MEASUREMENTS AND ADJUSTMENTS
13.1. Adjustment of the secondary interlock switch (SAFETYSWITCH B) (Right and Leftside) 1. Switch operation When the door is slightly opened, the secondary interlockswitch opens the main circuit. The movement of the doorfrom the closed position to the operation position (shown asliter) of the switc...
Page 24 - output; 4 PROCEDURE FOR MEASURING RADIATION LEAKAGE
13.3. Adjustment of the primary interlock switch (SAFETYSWITCH A) (Right and Leftside) 1. Switch operation W hen the door is slightly opened, the contacts of primaryinterlock switch opened to give digital programmer circuitthe information that the door is opend. The allowab lemovement of the door fr...
Page 25 - radiation leakage; notification after measurement
· Glass thermometer 212°F or 100°C · 600cc glass beaker 14.2. Procedure for measuring radiation leakage Note before measuring 1. Do not exceed meter full scale deflecti on Leakage monitor should initially be set to the highest scale. 2. To prevent false readings the test probe should be held by the ...
Page 26 - 5 TROUBLESHOOTING GUIDE
15 TROUBLESHOOTING GUIDE CAUTION 1. Check grounding before checking for trouble. 2. Be careful of the high voltage circuit. 3. Discharge high voltage capacitor. 4. When checking the continuity of the switches or the high voltage transformer, disconnect one lead wire from these parts and then checkco...
Page 28 - 6 EXPODED VIEW AND PARTS LIST
16 EXPODED VIEW AND PARTS LIST 28 NE-3280 / NE-2180 / NE-2180C
Page 34 - 8 DOOR ASSEMBLE
Ref. No. Part No. Part Name & Description Pcs/Set Remarks 138 XWG5BV WASHER 2 FOR SHELF SUPPRT 138 XWG5BV WASHER 2 FOR SHELF SUPPRT 139 A90273A40AP CORD BUSHING 1 NE-3280 139 A90273040AP CORD BUSHING 1 NE-2180(C) 140 A90353A40AP CORD BRACKET 1 NE-3280 140 A90353570CP CORD BRACKET 1 NE-2180(C) 14...
Page 35 - 9 ESCUTCHEON BASE ASSEMBLE
Ref. No. Part No. Part Name & Description Pcs/Set Remarks D12 XYEANE4+C16T SCREW 4 4X16 D12 XYEANE4+C16T SCREW 4 4X16 D13 A30853030GP DOOR C 1 D14 ANE0245X00AP DHHS LABEL 1 NE-3280,NE2180 D15 ANE01728U0CP CAUTION LABEL 1 NOTE: Please order DHHS label together. 19 ESCUTCHEON BASE ASSEMBLE Ref. No...
Page 36 - 0 PACKING AND ACCESSORIES
20 PACKING AND ACCESSORIES Ref. No. Part No. Part Name & Description Pcs/Set Remarks P1 A00033A40AP INSTRUCTION BOOK 1 NE-3280,NE-2180 P1 A00033A60CP INSTRUCTION BOOK 1 NE-2180C P2 A00873040AP MENU CARD 1 P3 A01023570CP PACKING CASE,PAPER 1 NE-3280 P3 A01023590CP PACKING CASE,PAPER 1 NE-2180(C) ...
Page 37 - 1 WIRING MATERIAL
Page 40 - 2 DIGITAL PROGRAMMER CIRCUIT
Ref. No. Part No. Part Name & Description Pcs/Ser Remarks D2,D3 ERZC10DK112R VARISTOR 2 F1,F2 A62316010BP FUSE HOLDER 4 F1,F2 A6116-1740 TERMINAL BOARD 2 NE-3280 F3 A62314000AP FUSE HOLDER 1 NE-3280,NE-2180 F3 A62316010BP FUSE HOLDER 4 L1 A621A3570CP FILTER COIL 1 NE-2180C 22 DIGITAL PROGRAMMER ...
Page 42 - 3 DIGITAL PROGRAMMER CIRCUIT
23 DIGITAL PROGRAMMER CIRCUIT PARTS LIST 42 NE-3280 / NE-2180 / NE-2180C