Panasonic NN-T983SF Service Manual

Also see for NN-S933BF: Setup guide Operating instructions

WARNINGCONTENTS(Page) (Page)-1-FEATURE CHART ...........................................................................3 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE ............... 13CONTROL PANEL ...........................................................................3 COMPONENT TEST PROCEDURE ........................................................ 16OPERATION AND DIGITAL PROGRAMMER MEASUREMENTS AND ADJUSTMENTS ............................................... 18CIRCUIT TEST PROCEDURE ........................................................ 5 PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE...19SCHEMATIC DIAGRAMS ............................................................... 7 TROUBLESHOOTING GUIDE .................................................................20DESCRIPTION OF OPERATING SEQUENCE ...............................9 EXPLODED VIEW AND PARTS LIST ......................................................24CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING ....11 SCHEMATIC DIAGRAM &PARTS LIST OF DIGITAL PROGRAMMER CIRCUIT ............................. 25PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLE EXPOSURETO EXCESSIVE MICROWAVE ENERGY(A) Do not operate or allow the oven to be operated with thedoor open.(B) Make the following safety checks on all ovens to be servicedbefore activating the magnetron or other microwave source,and make repairs as necessary:(1) Interlock operation(2) Proper door closing(3) Seal and sealing surfaces (arcing, wear, and otherdamage)(4) Damage to or loosening of hinges and latches.(5) Evidence of dropping or abuse(C) Before turning on microwave power for any service test orinspection within the microwave generating compartments,check the magnetron, waveguide or transmission line, andcavity for proper alignment, integrity and connections.(D) Any defective or misadjusted components in the interlock,monitor, door seal, and microwave generation and trans-mission systems shall be repaired, replaced, or adjustedby procedures described in this manual before the oven isreleased to the owner.(E) A microwave leakage check to verify compliance with theFederal Performance Standard should be performed oneach oven prior to release to the owner.WARNINGThis service information is designed for experienced repair technicians only and is not designed for use by the general public. It does notcontain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repairthe product or products dealt with in this service information by anyone else could result in serious injury or death.>1. This product should be serviced only by trained, qualified 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. modelsor “Radiation Emitting Devices Act”(Health and Welfare Canada): Canadian modelsit is very important all repairs should be made in accordance with procedures described in this manual to avoid being exposedto excessive microwave radiation.3. Check for radiation leakage before and after every servicing according to the “procedure for measuring radiation leakage.”4. If the unit cannot be repaired on site, advise the customer not to use until unit is repaired.5. Any serviceman who learns of any accident pertaining to microwave radiation leakage including the oven operating withopen door should immediately notify the appropriate address listed below and Center for Devices and Radiological Health,DHHS.IN U.S.A. Panasonic Services Company IN PUERTO RICO PSC(PASC) 50 Meadowland Parkway, (PSC) San Gabriel Industrial ParkSecaucus, New Jersey 07094 65th Infantry Ave. Km.9.5Attention: Technical Service Division. Carolina, Puerto Rico 00985(201)348-7000 (787)750-4300IN CANADA Panasonic Canada Inc.(PCI) 5770 Ambler Drive, Mississauga,Ontario, L4W2T3(905)624-50106. There are special components used in the microwave oven which are important for safety. These parts are marked witha on the replacement parts list. It is essential that these critical parts should be replaced only with the manufacture’sspecified parts to prevent microwave leakage, shock, fire, or other hazards. Do not modify the orginal design.>