Panasonic NN-CD989S User manual

© Panasonic Corporation 2010 Unauthorized copy-
ing and distribution is a violation of law.
ORDER NO. MOD1002311AE
Microwave Oven
Model No. NN-CD989S
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 2
2 Warning -------------------------------------------------------------- 3
3 Specifications ----------------------------------------------------- 4
4 Location of Controls and Components ------------------- 5
5 Test Mode ----------------------------------------------------------- 7
6 Service Mode ------------------------------------------------------ 8
7 Disassembly and Assembly Instructions ---------------10
8 Schematic Diagram -------------------------------------------- 12
9 Exploded View and Replacement Parts List ----------- 13
Please file and use this manual together with the service manual for Model No.NN-C980B(Order
No.MOD0003234C1).

2
1 Safety Precautions
WARNING
1. This product should be serviced only by trained qualitied personnel.
2. Though this product has been manufactured in compliance with:”Federal Performance Standard 21 CFR Subchapter
J”(D.H.H.S.):U.S.A.models
It is very important all repairs should be made in accordance with procedfures described in this manual to avoid being
exposed excessive microwave radiation.
3. Check for radiation leakage before and after every servicing according to the “procedure for measuring radiation leakege”.
4. If the unit cannot be repaired on site,advise the customer not to use until unit be repaired.
5. Any serviceman who learns of any accident pertaining to microwave radiation leakage includng the oven operating with open
door should immediately notify the appropriate address listed below and Center for Devices and Radiological Health,DHHS
IN U.S.A. Panasonic Service and Technology Company
(PSTC) 50 Meadowland Parkway,
Secaucus, New Jersey 07094
Attention:Technical Service Division.
[phone]
6. There are special components used in the microwave oven which are important for safety. These parts are marked
with a on the replacement parts list. It is essential that these critical parts should be replaced with manufacturer’s speci-
fied parts to prevent microwave leakage, shock, fire, or other hazards, do not modify the original design.

3
2Warning

4
3 Specifications
APH/RPH
Power Source: 120V AC, 60Hz
Power Requirement: Microwave 1,560 W
Heater 1,500 W
Output: Microwave 1,100 W : Full Power (IEC 705-88)
Heater 1,400 W
Microwave Frequency: 2,450 MHz
Timer: Microwave 1 hour 30min. (30min. for High power)
Heater 9 hours
Outside Dimensions: 14-13/16”(H) X 23-7/8”(W) X 19-5/16”(D)
376 mm(H) X 606 mm(W) X 491 mm(D)
Oven Cavity Dimensions: 9-1/2”(H) X 16-1/4”(W) X 16-13/16”(D)
242 mm(H) X 412 mm(W) X 426 mm(D)
Weight: Appro x.21kg
PbF: This Produt with PbF
Specitications subject to change without notice.

5
4 Location of Controls and Components
4.1. CONTROL PANEL

6
4.2. OPERATION GUIDE
The display defaults to English,LB-F,and Operation Guide On.
If you desire another option,see below for instructions.
A change in language or measurement must be chosen directly after plugging in the oven.
•LANGUAGE CHOICE
•OPERATION GUIDE ON/OFF
•LB-F/KG-C CHOICE
OPERATION GUIDE helps you program your oven by prompting you with the next step.
When you become familiar with your oven, the Operation Guide can be turned off.
Press More/Less Button Choice
－ENGLISH
once FRANCAIS
twice ESPANOL
Press Timer Button Choice
－ON
4 times OFF
4 times ON
Press Start Button Choice
－LB-F
once KG-C

7
5 Test Mode
5.1. COMPONENT TEST PROCEDURE
5.1.1. Humidity Sensor and Digital Programmer Circuit
In order to determine if the humidity sensor fanction of the digital programmer circuit is in
working order or not, do the following test
1. Place a water load in the oven.
2. Press "Sensor Reheat"button.
3. Press "Start" button.
4. Humidity sensor detects steam about 1 to 4 minutes after the start button is pressed.
5. T1 time cooking automatically switches to remaining cooking time(T2).
6. The remaining cooking time appears in display window.
If following cooking time appears, humidity sensor fanction is normal.
T1 TIME T2 TIME(Remaining cooking time)
1 Min. ~ 4 Min. 30 Sec. ~ 2 Min.

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6 Service Mode
6.1. OPERATION AND DIGITAL PROGRAMMER CIRCUIT
TEST PROCEDURE

9
6.2. SENSOR COOKING

10
7 Disassembly and Assembly Instructions
7.1. CAUTION WHEN REPLACING INVERTER PCB
1. Remove 2 high voltage lead wires from magnetron.
2. Remove 2 lead wires from inverter PCB.
3. Remove 1 screw holding air guide.
4. Remove 2 screws holding noise filter from bottom.
5. Remove 2 screws holding inverter bracket, and slide it left to take it out from oven chassis.
6. Remove 1 screw holding inverter PCB from bottom.
7. Remove 4 screws holding inverter PCB.
8. Remove inverter PCB from its bracket by releasing catch hooks.
9. Remove CN703 hausing connector from the inverter PCB.
10. When re-installing it, make sure to place grounding plate in its place.
Missing grounding is very danger.

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7.2. DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE
7.2.1. PC board Au and PC board Du.
NOTE:Be sure to ground any static electric charge
buit up on your body, before handling the PC boards.
1. Disconnect all connectors from PC board Du.
2. Remove 3 screws holding escutcheon base and slide the
escutcheon base upward slightly.
3. Remove 2 knobs from the escutcheon base.
4. Remove flat cable from CN7 connector.
5. Remove 5 screws holding PC board Du.
To replace PC board Au.
6. Remove 6 screws holding PC board Au.
7. Remove the flat cable from the PC board.

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8 Schematic Diagram

13
9 Exploded View and Replacement Parts List
9.1. EXPLODED VIEW AND PARTS LIST

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9.3. DOOR ASSEMBLY
NOTE1: Please order Door Au and DHHS label together.
Safety Ref.
No.
Part No. Part Name & Description Pcs/Set Remarks
D1 ANE0245X00AP DHHS LABEL 1 APH
D2 XTBANE4+12FK SCREW 4 4X12 (FOR D8)
D3 A300B5450AP UPPER HINGE 1
D4 A302A7V2APS DOOR A (U) 1 NOTE 1
D5 A302K6660QP DOOR E (U) 1
D6 A30186660QP DOOR KEY A 1
D7 A30214000AP DOOR KEY SPRING 1
D8 A30856660QP DOOR C 1
D9 A33816E00AP HEAT SHIELD PANEL 1
D10 XTW3+8Q SCREW 2 3X8 (FOR D9)

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9.4. ESCUTCHEON BASE ASSEMBLY
Safety Ref.
No.
Part No. Part Name & Description Pcs/Set Remarks
E1 A01576E00AP NAME LABEL 1 APH
E1 A01577V20RP NAME LABEL 1 RPH
E2 A603Y7V20AP PC BOARD W/COMPONENT 1 D.P.CIRCUIT
E3 A603L7V20AP PC BOARD W/COMPONENT 1 APH D.P.CIRCUIT
E3 A603L7V20RP PC BOARD W/COMPONENT 1 RPH D.P.CIRCUIT
E4 A66167F40QP FLAT CABLE 1
E5 A80096E00AP INDICATOR A 2 APH
E5 A80097V20CP INDICATOR A 2 RPH
E6 A80206E00AP TIMER KNOB 2
E7 ANE80378A0AG SPRING 1
E8 A80726E00AP DOOR OPENIG BUTTON 1
E9 A81276E00AP BACK PANEL 1
E10 A82567F40QP DOOR OPENING LEVER 1
E11 A82876E00AP SPACER A 2
E12 A80346E00AP ESCUTCHEON BASE 1
E13 A80357V20AP ESCUTCHEON SHEET 1 APH
E13 A80357V20RP ESCUTCHEON SHEET 1 RPH
E14 A80247V20AP OPERATION BUTTON 1
E15 A82516E00AP LED CAP 1
E16 A80166E00AP ESCUTCHEON B 1
E17 A80566E00AP TRIM 1

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9.5. PACKING AND ACCESSORIES
Safety Ref.
No.
Part No. Part Name & Description Pcs/Set Remarks
P1 A000B7V20AP COOK BOOK 1 APH
P2 A00037V20AP INSTRUCTION BOOK 1 APH
P2 A00037V20RP INSTRUCTION BOOK 1 RPH
P3 A01027V20AP PACKING CASE PAPER 1 APH
P4 A01046670AP UPPER FILLER 1
P5 A01056670AP LOWER FILLER 1
P6 A01065130AP VINYL COVER 1
P7 ANE0107580AP DOOR SHEET 1
P8 A01086660QP TRAY PACKING 1
P9 A0113660QP TRAY STYROL 1
P10 A83737V20RP CONTROL PANEL SHEET 1 RPH
P11 ANE0192Z70BP PACKING /TOP SHEET 1
P12 ANE02072L0AP STYROL SHEET 1
P13 A060V4X00AP HIGH BAKING RACK 1
P14 A06014X70QP COOKING TRAY 1
P15 A01456E00KP DOOR SHEET B 1

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9.6. WIRING MATERIAL
Safety Ref.
No.
Part No. Part Name & Description Pcs/Set Remarks
W1 A030A7V20AP LEAD WIRE HARNESS 1
W2 A030E4X00AP LEAD WIRE 1
W3 A03536660QP LEAD WIRE 1
W4 A03536670AP LEAD WIRE 1