Panasonic NN ST775S

Specifications:

Table Caption: This table compares the specifications of several Panasonic microwave oven models (NN-SE795S, NN-ST785S, NN-ST775S, NN-ST765S, NN-SD765S, NN-SD755S), showing that they share identical power source, consumption, frequency, timer, weight, and PbF designation, with minor variations in outside and oven cavity dimensions.

WARNING

Products powered by electricity should be serviced or repaired only by experienced professional technicians. attempt to service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death. Any

This Service Manual is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

©

Panasonic

Appliances

Microwave

Oven

(Shanghai) Co., Ltd. 2015.

NN-SE795S NN-ST785S NN-ST775S NN-ST765S NN-SD765S NN-SD755S

CPH (CANADA)

Microwave Oven

Your safety and the safety of others are very important.

We have provided important safety messages in this manual and on your appliance. Always read and all safety messages. obey

This is the safety alert symbol. It is used to alert you to potential hazards that can kill or hurt you and others The safety messages will follow the safety alert symbol and either the word "DANGER" , "WARNING" or "CAUTION" These words mean:

DANGER

WARNING

CAUTION

You can be killed or seriously injured if you don't follow instructions

You can be exposed to a potentially hazardous situation which; if not avoided, may result in minor or moderate injury.

The safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury; and tellyou what can happen if the instructions are not followed.

WARNING

• 1 .This product should be serviced only by trained, qualified personnel.

"Federal Performance Standard 21 CFR Subchapter J(D.H.H.S): U.S.A models

• 2 Though this product has been manufactured in compliance with:
• or "Radiation Emitting Devices Act"(Health and Welfare Canada): Canadian models

3. Check for radiation leakage before and after every servicing according to the "procedure for measuring radiation leakage.

• it is important all repairs should be made in accordance with procedures described in this manual to avoid being exposed to excessive microwave radiation. very
• 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 with open door should immediately notify the appropriate address listed below and Center for Devices and Radiological Health; DHHS.
• 6.There are special components used in the microwave oven which are important for safety. These parts are marked with on the replacement parts list. It is essential that these critical parts should be replaced only with the manufacture's specified parts to prevent microwave leakage; shock, fire, or other hazards. Do not modify the orginal design:

IN U.S.AAND PUERTO RICO (PNA)

Panasonic Corporation of North America

IN CANADA (PCI)

Panasonic Canada Inc.

Two Riverfront Plaza

5770 Ambler Drive; Mississauga,

Newark NJ 07102 Attention: Technical Hotline (800)572-2672

Ontario; L4W2T3

(905)624-5010

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

• (A) Do not operate or allow the oven to be operated with the door open
• (1) Interlock operation
• (B) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary:
• (2) Proper door closing
• (4) Damage to or loosening of hinges and latches.
• (3) Seal and sealing surfaces (arcing, wear; and other damage)
• (C) Before turning on microwave power for any service test or

About lead free solder (PbF)

Caution: Pb free solder has

• inspection within the microwave generating compartments, check the magnetron; waveguide or transmission line; and cavity for proper alignment, integrity and connections
• (E) A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner:.

CAUTION

Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.

• higher melting point than standard solder; Typically the melting point is 30 40*C higher. Please use a high temperature soldering iron: In case of the soldering with temperature control, please set iron
• Pb free solder will tend to splash when heated too high (about 600*C). Use eyeware protection.
• (D) defective or misadjusted components in the interlock monitor; door seal, and microwave generation and transmission systems shall be repaired, replaced; or adjusted by procedures described in this manual before the oven is released to the owner. Any

WARNING

This Inverter board looks Ilke a regular PCB. However; this PCB drives the magnetron tube with extremely high voltage and high current. Take cautionary measures when disassembling and troubleshooting the Inverter circuit Improper handling can result in an electrical shock or burns, which might