DOWNLOAD Panasonic SR-DY181WTQ / SR-DY101WTQ Service Manual ↓ Size: 1.7 MB | Pages: 29 in PDF or view online for FREE

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2 Schematic 

Diagram

N
L

Outer Lid Heater

Side Warming Heater

Control board (power side)

Control board (operating side)

Terminal

Earth lead

Cast Heater

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3  Wiring Connection Diagram

Earth Lead (Green)

Lead 

!

 (18,15:Y

ellow 10:purple)

Lead (18, 15: Blue, 10:Red)

To

 lid grounding wire

To

 lid sensor

To

 lid heater

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4 Troubleshooting

When receiving a cooker for service from the user, please check if the product remains intact (e.g. pan, valve for warming, etc.), and 
ask the user to describe the symptom of the malfunction. Unplug the power cord when carrying out component-level checks.

4.1.   Before Problem Diagnosis

 •

 The problem diagnosis table is divided into two sections: Vol. 1 for the cooker's main unit, Vol. 2 for the control board.

 •

 Start diagnostic evaluations with Vol. 1.

 •

 Check if the symptom of the malfunction cooker is listed in the Vol. 1 diagnostic section. If no item is found, perform a quick check 

test of the control board (refer to P10). If any fault is found, continue the diagnostic evaluation referring to Vol. 2.

 •

 The problem diagnosis table primarily lists suspect component assemblies (parts) and areas.

 •

 Refer to P12 for parts-level determination of malfunctions for each board.

The microprocessor is constructed of CMOS digital IC (integrated circuit) and MOS FET (Metal-Oxide-Semiconductor Field-Effect 
Transistor) technology, and is extremely sensitive to static electricity, including static discharges from human body, clothing, and from 
objects, including soldering irons. Handling with great care as specifi ed below:

 •

 When handling, workers should be well grounded.

 •

 Ground soldering irons. Do not use poorly insulated soldering irons. It is recommended to use soldiering irons with microcircuitry.

 •

 Do not touch the pins of ICs or other elements with your hands before well grounded. Do not place the board on a conductive 

surface that may be charged.

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  • Do not insert parts from the reverse side of the board.

 •

 When testing with a multimeter during continuous tests, do not use high resistance ranges (×10,000), which may subject ICs and 

other components on the board to excess voltage and thus cause damage.

 •

 Keep soldering time as short as possible (within a few seconds).

 •

 Unplug the power cord before replacing any components.

 •

 Be aware of the risk of electric shock or injury when handling a live control board. The control board's transformer carries 220 V 

AC.

4.2. SELF-DIAGNOSIS 

FUNCTION

Symbol

Symptom

Remedy

Pan sensor or the branch components 
of pan sensor on the control board are 
deactivated.

Replace the pan sensor or replace the 
branch component of pan sensor on the 
control board.

Lid sensor or the branch components 
of lid sensor on the control board are 
deactivated.

Replace the lid sensor or replace the 
branch component of lid sensor on the 
control board.

Relay or circuit board is deactivated.

Replace the relay or control board.

When Keep Warm exceeding 96 hours.

Press “Power Off” button to resume 
keeping warm.

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