Panasonic Nn St452w User Manual

							7.4. Simple way of H.V. Inverter/magnetron troubleshooting
Purpose:
Simple way(3/23 seconds rule)of identifying whether it’s Magnetron, Inverter, or others.
Set-up:
The unit under question is connected through the Ammeter as shown below.
Procedure:
Follow the matrix table below to identify the problem source.
Note:
Do not replace both Inverter board and Magnetron simultaneously and automatically without going through this
procedure.
Power will:Ammeter reading is:To do:Remedy:
Shut off in 23 seconds
after “Start”.1. Between 0.5A and 1.0A.Check and repair open magnetron circuitOpen magnetron wiring between Inverter
and magnetron terminal.
2. Between 1.0A and 2.0A.Check continuity of D702 in Inverter PCB.
1. D702 shortedReplaceH.V.Inverter
(Z606YBA00QP)
2. D702 is OKReplacemagnetron
Shut off in 3 seconds
after “Start”1. Less than 0.5ACheck open circuit: Latch Switch, DPC,
Power Relay and CN701Replace defective component(s), or
correct switch, cables and connectors.
7.5. How to check the semiconductors using an OHM meter
21
NN-SD452W / NN-ST462M / NN-ST452W 
						

							7.6. H.V. INVERTER MAIN PARTS LIST (Z606YBA00QP)
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarksQ701Z1JAEV000003IGBT1C701ZCWHC3B104JAFILM CAPACITOR10.1µF,1000VDCC702ZCWF4305N851FILM CAPACITOR13µF,250VDCDB701Z0FBBQ000006RECTIFIER BRIDGE1L701Z5020W100APCHOKE COIL1R702Z0CM562JA002SAND BAR RESISTOR1T701Z609ABA00GPTRANSFORMER1(INCLUDING D701,D702,C706,C707)D701,D702Z0FBAZ000003DIODE2C706Z0C3F562A002FILM CAPACITOR15600PF/3KVC707Z0C3F822A002FILM CAPACITOR18200PF/3KV
22
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8 EXPLODED VIEW AND PARTS LIST
8.1. EXPLODED VIEW
23
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8.2. 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.
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarks1Z00064080BPCAUTION LABEL1BPQ1Z00069000EPCAUTION LABEL1EPG2Z21559Y10QPOVEN STICKY PAPER14Z10019Y00APBASE15Z10089W40HPSRUBBER FOOT2
6Z10099Y00SAPCABINET BODY (U)1ST462M6Z10099Y00HAPCABINET BODY (U)1SD452W,ST452W7Z200A9Y00SQPOVEN (U)18Z20559Y00APCOVER19Z21319Y00APPULLY SHAFT1
11Z290D6W50XPROLLER RING (U)112Z30209X70EPDOOR HOOK113Z11619Y00APREINFORCEMENT BRACKET1
17Z400A9Y00QPFAN MOTOR118Z40089Y00APFAN BLADE119Z40259Y00APAIR GUIDE A120Z41449Y10QPORIFICE1
21Z607S4T00APSTEAM SENSOR122Z64499Y00APSENSOR COVER A124Z64508660APSENSOR COVER B125Z65439Y00APSENSOR COVER C1
26Z61425U30XNMICRO SWITCH1(PRIMARY LATCH SWITCH)27Z61415U30XNMICRO SWITCH1(SECONDARY LATCH SWITCH)28Z61459V00XPTHERMAL CUTOUT129Z612E9C30BPINCANDESCENT LAMP (U)130Z61785U30XNMICRO SWITCH1(SHORT SWITCH)
31Z606YBA00QPH.V.INVERTER (U)132Z2M261-M39RMAGNETRON133Z62309W40HPFUSE1(10A)35Z66629Y00APGROUNDING PLATE1
36Z63266S30XPTURNTABLE MOTOR137Z900C9Y10KTAC CORD W/PLUG1BPQ37Z900C9Y10PTAC CORD W/PLUG1EPG38Z607X9Y60BPNOISE FILTER140Z30069Y00APHINGE A1
41ZTWFL4+12TSCREW4FOR MAGNETRON43ZTWFA4+12DSCREW4FOR CABINET BODY44ZTWFA4+12LRSCREW3FOR HINGE A45Z65859Y00APINVERTER BRACKET1
55Z31389X70EPHOOK LEVER C156Z31369X70EPHOOK LEVER A157Z31379X70EPHOOK LEVER B1
24
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8.3. ESCUTCHEON BASE ASSEMBLY
8.3.1. NN-SD452W
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarksE1Z603L9Y70EPD.P.CIRCUIT (AU)1SD452W EPGE2Z603Y9Y70EPD.P.CIRCUIT (DU)1SD452W EPGE3Z80349Y70HEPESCUTCHEON BASE1SD452W EPGE4Z891P9Y00HAPDOOR OPENING BUTTON (U)1SD452W EPGE5Z83379Y70HEPMEMBRANE SHEET1SD452W EPG
E6Z82569Y00APDOOR OPENING LEVER1E7Z80375K00APCOOK BUTTON SPRING1E8Z803G9M60HBPPOP-OUT DIAL (U)1SD452W EPGE9Z80189Y40APDIAL SUPPORT1SD452W EPGE10Z82989Y40HAPBUTTON1SD452W EPG
E11Z82989Y90HAPBUTTON B1SD452W EPGE13Z66167D00APFLAT CABLE1SD452W EPGE14Z81279Y40APBACK PANEL1SD452W EPGE15Z00079Y70HEPNAME PLATE1SD452W EPG
E16Z81269Y70BEPDISPLAY WINDOW1SD452W EPG
25
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8.3.2. NN-ST462M, ST452W
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarksE21Z603L9Y60BPD.P.CIRCUIT (AU)1ST462M BPQ,ST452W BPQE23Z80349Y10SHPESCUTCHEON BASE1ST462M BPQE23Z80349Y10HAPESCUTCHEON BASE1ST452W BPQE24Z891P9Y60SBPDOOR OPENING BUTTON (U)1ST462M BPQE24Z891P9Y00HAPDOOR OPENING BUTTON (U)1ST452W BPQE25Z630Y9Y60SBPMEMBRANE SWITCH (U)1ST462M BPQE25Z630Y9Y60HBPMEMBRANE SWITCH (U)1ST452W BPQ
E26Z82569Y00APDOOR OPENING LEVER1E27Z80375K00APCOOK BUTTON SPRING1E28Z81279Y00APBACK PANEL1ST462M BPQ,ST452W BPQE29Z66139Y20APBACKSTOP1ST462M BPQ,ST452W BPQ
E35Z00079Y60SBPNAME PLATE1ST462M BPQE35Z00079Y60HBPNAME PLATE1ST452W BPQ
26
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8.4. DOOR ASSEMBLY
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarksD1Z30189Y00APDOOR KEY A1D2Z302A9Y70HEPDOOR A (U)1SD452W EPGD2Z302A9Y60SBPDOOR A (U)1ST462M BPQD2Z302A9Y60HBPDOOR A (U)1ST452W BPQD3Z302K9Y00APDOOR E (U)1D4Z30215G10XNDOOR KEY SPRING1D5Z30859Y00APDOOR C1
D6Z31459Y00APDOOR SCREEN A1
27
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8.5. WIRING MATERIALS
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarksW1Z030A9Y60BPLEAD WIRE HARNESS1(INCLUDING MAGNETRON THERMISTOR)W2Z030E9Y10QPH.V.LEAD WIRE1
28
NN-SD452W / NN-ST462M / NN-ST452W 
						

							8.6. PACKING AND ACCESSORIES
Ref. No.Part No.Part Name & DescriptionPcs/SetRemarksP1Z00039Y60BPINSTRUCTION MANUAL1ST462M BPQ,ST452W BPQP1Z00039Y70EPINSTRUCTION MANUAL1SD452W EPGP2Z01029Y70HEPPACKING CASE,PAPER1SD452W EPGP2Z01029Y60SBPPACKING CASE,PAPER1ST462M BPQP2Z01029Y60HBPPACKING CASE,PAPER1ST452W BPQP3Z01049Y00APUPPER FILLER1P4Z01059Y00APLOWER FILLER1P5Z01068100XNP.E.BAG1
P6Z01078J00XNDOOR SHEET1P8Z06014N30BPCOOKING TRAY1P9Z01099Y00APSHEET1ST462M BPQP10Z000B9Y70EPCOOK BOOK1EPQ
29
NN-SD452W / NN-ST462M / NN-ST452W 
						

							9 DIGITAL PROGRAMMER CIRCUIT
9.1. SCHEMATIC DIAGRAM (NN-SD452W)
30
NN-SD452W / NN-ST462M / NN-ST452W