Table of Contents
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s
Power Requirement
Power Output
Microwave Frequency
Magnetron
Timer
Outside Dimensions
Cavity Dimensions
Net Weight
Shipping weight
Specifications subject to change without notice.
2
7L
White/Silver
India
230 Volts AC 50 Hz
(7.0 A)
Microwave 1450W
Grill
(
6 0
.
A)
14
00
W
(10.4 A)
Convection 2400W
Single phase, 3 wire grounded
900 Watts full microwave power (IEC60705)
2,450 MHz
2M319M
0 ~ 90 min.
513
W) x
306
(H) x 4
71
D) mm
(
(
(W) x
(H) x 348(D) mm
330
239
17.2 kg (approx.)
1
9. kg (approx.)
7
© Panasonic Corporation 2011 Unauthorized
copying and distribution is a violation of law
Order No. MOD111034 8
Microwave Oven
Model No.
NN-CT641M
NN-CT651M
CE
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Related Manuals for Panasonic NN-CT641M
Summary of Contents for Panasonic NN-CT641M
- Page 1 (H) x 4 D) mm (W) x (H) x 348(D) mm Cavity Dimensions Net Weight 17.2 kg (approx.) Shipping weight 9. kg (approx.) Specifications subject to change without notice. © Panasonic Corporation 2011 Unauthorized copying and distribution is a violation of law...
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Page 2: Safety Precautions
TUG ……For India SAFETY PRECAUTIONS This device is to be serviced only by properly qualified service personnel. Consult the service manual for proper service procedures to assure continued safety operation and for precautions to be taken to avoid possible exposure to excessive microwave energy. PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY... -
Page 3: Table Of Contents
CONTENTS (Page) SAFETY PRECAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Inside front cover - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 4: Power Level And Accessories
POWER LEVEL & ACCESSORIES ITEM DESCRIPTION Microwave Power for Variable Cooking Control Complement Power level 900 Watts 715 Watts Medium 440 Watts 250 Watts Defrost 100 Watts Warm Combi Combi Rating Label Location Inside Accessories Instruction manual Glass Tray ller ing Wire Rack (high,low) This microwave oven is designed for household use only. -
Page 5: Cautions
CAUTIONS Unlike other appliances, the microwave oven is MICROWAVE RADIATION high-voltage and high-current equipment. Personnel should not be exposed to the Though it is free from danger in ordinary use, microwave energy which may radiate from the extreme care should be taken during repair. magnetron or other microwave generating device if it is improperly used or connection. -
Page 6: Installations
INSTALLATIONS BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY. INSTALLING EARTHING INSTRUCTIONS 1. Empty the microwave oven and clean inside it with This microwave oven is designed to be used in a fully a soft, damp cloth. Check for damage such as earthed condition. -
Page 7: Operating Instructions
OPERATING INSTRUCTIONS FEATURES Oven Front Plate See-Through oven window Door handle Door Control Panel Safety Door Lock System Glass Tray Roller Ring CONTROL PANEL... -
Page 8: Operating Sequence
OPERATING SEQUENCE The following is a description of component functions 7. AUTO DEFROST COOKING during oven operation. 1. SETTING THE CLOCK Desired Desired defrost Start weight Set the time program Stop/ by pressing Clock Clock time pads 8. CHILD SAFETY LOCK Using this system will make the oven inoperable;... -
Page 9: Schematic Diagram
SCHEMATIC DIAGRAM Ry 1 Ry 2 Ry 5 Ry 3 Ry 4... -
Page 10: Circuit Description
CIRCUIT DESCRIPTION power of microwave oven as POWER LEVEL. GENERAL DETAILS (refer to page 1-1) • The low voltage transformer supplies the necessary voltage to the micom controller when power cord is WHEN THE DOOR IS OPENED DURING plugged in. COOKING •... - Page 11 WHEN TOUCHING THE START KEY WITH THE COOKING CONVECTION SELECTED FUNCTION • The contacts of the primary switch and the secondary switch close the circuit. • A.C.voltage is applied to the grill heater and convection heater through each thermostat as shown by the solid line.
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Page 12: Service Information
SERVICE INFORMATION TOOLS AND MEASURING INSTRUMENTS NECESSARY TOOLS NECESSARY MEASURING INSTRUMENTS Tools normally used for TV servicing are sufficient. • TESTER(VOLTS-DC, AC., Ohmmeter) Standard tools are listed below. • Microwave survey meter • Diagonal pliers - Holaday HI-1500 • Long nose pliers HI-1501 •... - Page 13 MEASUREMENT WITH OUTER CASE NOTES WHEN MEASURING REMOVED • Do not exceed meter full scale deflection. • The test probe must be removed no faster than • When you replace the magnetron, measure for 1 inch/sec (2.5 cm/sec) along the shaded area, microwave energy leakage before the outer case is otherwise a false reading may result.
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Page 14: Measurement Of Microwave Power Output
MEASUREMENT OF MICROWAVE POWER OUTPUT • Microwave power output measurement is made with is measured while the microwave generator is the microwave oven supplied at its rated voltage and operating at full power. Magnetron filament heat-up operated at its maximum microwave power setting with time is not included. - Page 16 H. AIR GUIDE ASSEMBLY REMOVAL J. REMOVING THE TURNTABLE MOTOR 1) Disconnect the leadwire from lamp, A.C Relay and 1) Remove the glass tray. monitor resistor and magnetron. 2) Remove the pulley shaft VERY CAREFULLY 3) Lay the unit down on its back. 2) Remove the screw to the cavity.
- Page 17 K. PCB ASSEMBLY REMOVAL L. INTERLOCK SYSTEM 1) Remove the control panel assembly from the 1) INTERLOCK MECHANISM cavity. The door lock mechanism is a device which has been specially designed to eliminate completely 2) Remove screws which hold the PCB to microwave activity when the door is opened during control panel.
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Page 18: Interlock Continuity Test
INTERLOCK CONTINUITY TEST WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS. TYPE NO. KW3A FOR SWITCHS B. SECONDARY INTERLOCK SWITCH TEST A. PRIMARY INTERLOCK SWITCH TEST Disconnect the wire lead from the secondary When the door release button is depressed slowly switch. -
Page 19: Component Test Procedure
COMPONENT TEST PROCEDURE CAUTIONS 1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. - Page 20 COMPONENTS TEST PROCEDURE RESULTS Antenna Gasket Chassis Filament NOTE: When testing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition. HIGH VOLTAGE Measure the resistance. Normal: Momentarily indicates CAPACITOR (Ohm-meter scale: Rx1000) several ohms, and then...
- Page 21 COMPONENTS TEST PROCEDURE RESULTS FUSE Check for continuity of the fuse with an Normal Abnormal multi-meter. NOTE: If the fuse is blown, check the primary, the secondary, and the monitor switches, H.V.D. and H.V.C. before replacing the fuse. If the fuse is blown by improper switch operation replace the defective switch and the fuse at the same time.
- Page 22 COMPONENTS TEST PROCEDURE RESULTS Check for P.C.B. connector. L.V.Transformer of P.C.B Normal Abnormal Disconnect the 3 pin (Refer to schemetic diagram) connector from P.C.B. Cooking Start RELAY 2, RELAY 3 Relay 3 OF P.C.B. (Wire leads removed.) Note: Relay Relay 4 Relay 1: Lamp Turntable motor Relay 5...
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Page 23: Trouble Shooting
TROUBLE SHOOTING WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY. IF THE FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL. CAUTIONS 1. Check grounding before checking for trouble. 2. - Page 24 (TROUBLE 1) The following visual conditions indicate a probable defective control circuit. 1. Incomplete segments. • Segment missing. • Partial segment missing. • Digit flickering (NOTE: Slight flickering is normal.) 2. Colon does not turn on or blink. 3. A distinct change in the brightness of one or more numbers in display. 4.
- Page 25 (TROUBLE 2) Oven does not operate at all ; Display window does not display any figures and no input is accepted. CONDITION CHECK RESULT CAUSE REMEDY Replace primary Malfunction of the Check continuity 1. Fuse blows. Continuity. monitor switch. and monitor of monitor switches.
- Page 26 (TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired program times are set and START pad is touched. CONDITION CHECK RESULT CAUSE REMEDY Defective Replace Check continuity 1.Setting time does No continuity. secondary switch. secondary switch.
- Page 27 (TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run (Display operates properly) CONDITION CHECK RESULT CAUSE REMEDY Defective P.C.B No microwave Disconnect the Replace P.C.B No continuity. oscillation. wire leads from assembly assembly relay 5 and check continuity Continuity.
- Page 28 (TROUBLE 6) Oven does not cook properly when programmed for the set power level (Operates properly on HIGH) CONDITION CHECK RESULT CAUSE REMEDY Defective P.C.B. Replace P.C.B. Output is full when Disconnect the Abnormal. assembly. assembly. you set lower wire leads from power level.
- Page 29 (TROUBLE 8) Convection REMEDY CONDITION CHECK RESULT CAUSE Convection Heater Malfunction the Heater. Abnormal. Replace. operating. heater. is not Normal. Thermostat and Malfunction the Abnormal. Replace. thermostat. relay3.(Convection) Normal. Replace or Wire connection. No continuity. Open or loosen. connect tightly. Lower tempera- Malfunction the Heater.
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Page 30: Exploded View
EXPLODED VIEW INTRODUCTION OVEN CAVITY PARTS INTERIOR PARTS DOOR PARTS BASE PLATE PARTS LATCH BOARD PARTS CONTROL PANEL PARTS... - Page 31 DOOR PARTS...
- Page 32 CONTROL PANEL PARTS...
- Page 33 INTERIOR PARTS...
- Page 34 LATCH BOARD PARTS...
- Page 35 OVEN CAVITY PARTS...
- Page 36 BASE PLATE PARTS...
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Page 37: Replacement Parts List
REPLACEMENT PARTS LIST NOTE: 1. When ordering replacement part(s), please use part number(s) shown in this part list. Do not use description of the part. 2. Important safety notice: Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacture’s specified parts. For Model:NN- C T6 41M (T U G) Ref.No. - Page 38 A060241H0TU WIRE RACK-LOW A060241G0TU WIRE RACK-HIGH A060141H0TU TRAY (GLASS) A290D41H0TU ROLLER RING (U) A662641G0TU BRACKET , THERMAL CUTOUT A640841G0TU NUT M4 A000341H0TU OPERATING INSTRUCTION NN-CT641M/NN-CT651M A09087W50BP CUSHION H.V.TRANSFORMER A09047W50BP CUSHION BASE A09067W50BP CUSHION CONVECTION HEATER & DOOR 7 - 2...
- Page 39 REPLACEMENT PARTS LIST NOTE: 1. When ordering replacement part(s), please use part number(s) shown in this part list. Do not use description of the part. 2. Important safety notice: Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacture’s specified parts. For Model:NN-C T6 5 1M (T U G) Ref.No.
- Page 40 A100841G0TU RUBBER FOOT A060241H0TU WIRE RACK-LOW A060241G0TU WIRE RACK-HIGH A060141H0TU TRAY (GLASS) A290D41H0TU ROLLER RING (U) A662641G0TU BRACKET , THERMAL CUTOUT A640841G0TU NUT M4 A000341H0TU OPERATING INSTRUCTION NN-CT641M/NN-CT651M A09087W50BP CUSHION H.V.TRANSFORMER A09047W50BP CUSHION BASE A09067W50BP CUSHION CONVECTION HEATER & DOOR...
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Page 41: Schematic Diagram Of P.c.b
SCHEMATIC DIAGRAM OF P.C.B 3.3V/DO35 KDSG3 p2.3/s6 s18/int0/p3.3 KDSG2 p2.2/s5 tout/int1/p3.4 KDSG1 p2.1/s4 tack/int2/p3.5 KDSG0 ZERO p2.0/s3 tacap/int3/p3.6 p4.2/s2 p4.1/s1 p4.0/s0 Xouot P1.7 p1.7/com0 D_Gr TEST p1.6/com1 test D_MW P0.0 p1.5/com2 XTin/p0.0 D_Conv P0.1 p1.4/com3 XTout/p0.1 P0.0 P0.1 P1.7 P4.5... - Page 42 P/NO : April, 20 Printed in China...