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Panasonic
NE-1257CR, NE-2157CR, NE-1757CR manual Troubleshooting Guide
Models:
NE-1257CR
NE-1757CR
NE-2157CR
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Troubleshooting
Parts list
WIRING DIAGRAM NE-2157R
Disassembly And Parts Replacement Procedure
Wiring Requirements
Disassembly of door assembly
Operation Procedure
Measurements And Adjustments
Variable power cooking control
Packing And Accessories
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NE-1257R/NE-1257CR /
NE-1757R/NE-1757CR /
NE-2157R/NE-2157CR /
NE-1258
22 TROUBLESHOOTING GUIDE
35
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Image 35
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Contents
ORDER NO. MOD0009238C1 E10
Commercial Microwave Oven
Page
CONTENTS
Page
WIRING DIAGRAM NE-2157R
1 OUTLINE DIAGRAM
2 OPERATION PROCEDURE
Page
Page
Page
Page
Power Source Voltage Selection
Wiring Requirements
4 SCHEMATIC DIAGRAM NE-1257R, NE-1258R
5 SCHEMATIC DIAGRAM NE-1257CR
6 SCHEMATIC DIAGRAM NE-1757R
7 SCHEMATIC DIAGRAM NE-1757CR
8 SCHEMATIC DIAGRAM NE-2157R
9 SCHEMATIC DIAGRAM NE-2157CR
10 WIRING DIAGRAM NE-1257R, NE-1258R
11 WIRING DIAGRAM NE-1257CR
12 WIRING DIAGRAM NE-1757R
13 WIRING DIAGRAM NE-1757CR
14 WIRING DIAGRAM NE-2157R
15 WIRING DIAGRAM NE-2157CR
16 DESCRIPTION OF OPERATING SEQUENCE
Variable power cooking control
17.1. Check the grounding
17 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING
17.5. Confirm after repair
Lower magnetron
18 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE
18.1.Replacement of magnetrons Upper and Lower
Upper magnetron
B. and D. P. C. board to avoid damage
18.2.Replacement of power supply circuit board
Removal of Positive Lock connector
18.5.Replacement of floor shelf and lower antenna
18.4. Replacement of upper antenna
NOTE Please refer to MEASURENMENT AND ADJUSTMENT
18.7. Disassembly of door assembly
19.2. High voltage capacitor
19 COMPONENT TEST PROCEDURE
19.5.Membrane key board Membrane switch assembly
19.1. High voltage transformer
19.7.Temp sensor Thermal protector
20.2.Measurement of microwave output
20 MEASUREMENTS AND ADJUSTMENTS
21.1. Equipment
Page
22 TROUBLESHOOTING GUIDE
23 EXPLODED VIEW AND PARTS LIST
24 PARTS LIST
Page
Page
25 DOOR ASSEMBLY
26 ESCUTCHEON BASE ASSEMBLY
27 PACKING AND ACCESSORIES
28 WIRING MATERIAL
30 REF. NO. 58 NOISE FILTER U
29 REF. NO. 89 L. V. TRANSFORMER U
31 REF. NO. E2 P. C. BOARD U
SCHEMATIC DIAGRAM
32 DIGITAL PROGRAMMER CIRCUIT
Page
PARTS LIST
33 DIGITAL PROGRAMMER CIRCUIT
