Panasonic SR-TMJ181 Manuale utente
Order No. PAPTH120602CE
Service Manual
Multi-Cooker
SR-TMJ181
© Panasonic Appliances (Thailand) Co., Ltd. 2012.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
There are special components used in this equipment which are important for safety. These parts are marked by
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do
not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
The service information 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. Products powered by electricity should be serviced or repaired only by experienced professional
technicians. Any attempt to service or repair the product or products dealt within this service information by anyone
else could result in serious injury or death.
WARNING
Destination
Russia / Ukraine / Kazakstan
Product Colour
Stainless (VP)
Подогрев
Выкл
Время
приготовления
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CONTENT
Page
3
4
5
6 - 7
8
9
9
10
11
11
12
13
14
15 - 16
1. Specification
2. Schematic Diagram
2.1 Wiring Diagram
2.2 Circuit Diagram
3. Troubleshooting Guide
3.1 Table 1
3.2 Table 2
4. Testing Procedure
4.1 Bubbling Test
4.2 Evaporation Test
4.3 Heat reserving Test
5. Disassembly
5.1 Hinge cover removal (Hinge Cover)
5.2 Inner enclosure and upper frame removal
5.3 Control unit A
6. Parts Exploded View and Replacement Parts List
6.1 Parts Exploded View : Body
6.2 Parts Exploded View : Packing
6.3 Replacement Parts List : SR-TMJ181
SR-TMJ181
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1. SPECIFICATION
MODEL
Power Supply
Colour Name
Colour Code
Body Material
Pan Material
Countries
Power Consumption Cooking
Warming
White Rice
Buck Wheat
Pearl Barley
Pilaf
Porridge / Slow cook / Soup / Compote
Cake
Plain Rice
Cooking Capacity
670W
108.5W
2 cups ~ 8 cups
2 cups ~ 8 cups
2 cups ~ 8 cups
Warming Capacity 2 cups ~ 8 cups
276 x 274 x 275 (mm)
3.1 Kgs.
Cooked rice warming Temperature
Temperature Detector
Thermal fuse Specification
Product Dimension (Width x Depth x Height)
Weight
Keep Warm
Power Cord (Approx.)
Accessories
* Specification subject to change without notice.
71°C ~ 79°C
Sensor thermistor
172°C 250V 10A
12 Hours
1.0 m.
Measuring cup, Scoop, Steaming basket
2 cups
3.1 L
900 g.
SR-TMJ181
Russia, Ukraine, Kazakstan
220V / 50Hz / SH-3
Stainless
VP
Stainless steel / SUS
Aluminium / AL
SR-TMJ181
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2. SCHEMATIC DIAGRAM
SR-TMJ181
2.1 Wiring Diagram
Glass tape
size 40 X 85 mm2
Inlet
Inlet
Shall be
closely covered with
tube to the bottom
Body earth lead wire (Green)
PCB lead wire A (White)
Thermal fuse lead wire B (Orange)
The glass tape affixes it from a
top and bottom direction, and
make it sealing up structure.
Impossible power do not be
added to a terminal joint.
5mm, or more
(Tape sealing area)
PCB lead wire B (Black)
Glass tape shall be
wraped around PCB
Thermistor lead wire (Red)
(Twisting 1 time)
Thermostat earth lead wire (Green)
Detail 2 : 1
Thermistor lead wire (Red)
Side heater lead wire A (Blue)
- Twisted vinyly tie 2 times.
- White, blue and black lead wire shall
not over lap PCB base boss.
- This blue wire shall be align in this portion.
Side heater lead wire D (White)
Side heater lead wire C (White)
Side heater lead wire B (Blue)
Terminal shall not be higher
than head of sems screw.
Side heater lead wire C (Black)
PCB lead wireC (Red)
Side heater lead wire D (Red)
Hinge earth lead wire (Green)
Tapping screw for body earth lead wire
Should be above Thermal fuse
lead wire A and then gose below
terminal of side heater lead wire D
Stamping earth
mark on PF.
5mm (around)
(Ø8)
- Twisted vinyly tie 2 times.
- All lead wire must not touch Cast heater terminal.
Thermal fuse
lead wire A (Black)
Thermostat earth lead wire (Green)
After twisted 2 times,
wind down this direction.
(Shall not touch Cast heater)
Vinyly tie
Lead wire
The clearance distance between terminal
& sems screw to other dead metal part
(Protecting frame, Cast heater pipe)
Should minimum 3.6 mm. (Any direction)
After inspection, screw head must be
mark with marker.
(Note) 1. Tightening torque of tapping screw for body earth lead wire and
sems screw for internal wiring : 60 ~ 120N - m
2. Each lead wire shall not contacting with sharp edges, moving parts,
high temperation portion.
3. All lead wire must not be hurt during assembly when apply 2N force.
Technical
Regulation
WARNING
Body earth lead wire
(Green)
Thermal fuse lead wire B (Orange)
PCB lead wire A (White)
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SR-TMJ181
2.2 Circuit Diagram
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SR-TMJ181
3. TROUBLESHOOTING GUIDE
3.1 Table 1
When receiving a rice boiler to be repaired, be sure to check that the main body is completely provide with the inner pan
and the inner lid, ask the condition (phenmenon) of the trouble in detail. Before troubleshooting single parts, be sure to
disconnect the power supply plug from the receptacle.
Condition
Rice boiling section
Plane rice.
• Rice is not boiling.
(The indicating lamp
does not come on)
• Rice is not boiling.
(The indicating lamp
is lit)
Troubleshooting Remedy
Is the power cord conductive? • Replace the cord.
• Make sure insert therminal is
fasten.
• Replace the P.C.B. complete.
• Replace the P.C.B. complete.
• Replace the cast heater.
• Replace the center thermostat.
• Replace the inner pan or the
cast heater.
• Seeing at Table 2
• Explain the proper operation.
• Isolate the cause which melt
the thermal fuse, correct
the cause and
• Earlier cut off.
• Poor boiling up.
• Too hard
• Too soft
• Insufficient boiling
• Immediately after the switch is turned
off, open the cap.
• Rice is excessive or insufficient.
• Rice has not been scooped and mixed
well.
• Water is excessive or insufficient.
• The switch is turned off once during
boiling.
Is the pan bottom properly contacted with
the cast heater?
Yes
No
Is the thermal fuse conductive?
Yes
No
Is the therminal conductive?
Yes
Are the parts on the P.C.B. mistake?
Are the parts on the P.C.B. mistake?
Improper operation
No
Yes
No
Yes
Yes
Yes
No
Is the cast heater conductive?
Yes
No
Are the parts on the P.C.B. mistake?
(Check with the bubbling test).
Does the center thermostat operate
properly?
Yes
No
(Check with the operation test).
Yes
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SR-TMJ181
Condition Troubleshooting Remedy
• Replace the center thermostat.
• Seeing at Table 2.
• Explain the proper operation.
• Excessive burning.
(More than light brown)
• The voltage is lower than specified.
• Rice is not washed sufficiently
• Water is excessive.
(Bran remains still)
• The pan bottom is conditioned to
generate burning easily.
Are the parts on the P.C.B. mistake?
Improper operation
No
Yes
Yes
Does the center thermostat operate
properly?
Yes
No
(Check with the evaporation test).
• To join it with CN5.
• Display of “Slow Cook”
and “Rice Cook/Steam”
are flashing light.
Check the sensor lead wire is connect
completely with control unit board. No
• Take off and join it with CN5
again.
Yes
• Check the connector of wiring.
• Display of “Start” and
“Timer” are flashing
light.
Is the relay operation ON/OFF alternately
after flashing light occure? No
• Replace the control unit
complete.
Yes
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SR-TMJ181
3.2 Table 2
Condition
• Rice is not boiling.
(The indicating lamp
does not come on)
• Rice is not boiling.
• The thermal fuse is
blown off.
• Earlier cut off.
• Poor boiling up.
• Excessive burning.
(The indicating lamp
is lit)
• Heat is not reserved.
(The indicating lamp
does not come on)
• Heat is not reserved.
(The indicating lamp
is lit)
Troubleshooting Remedy
Is the transformer operating?
• Replace the P.C.B. complete.
• Replace the transformer.
• Replace the relay.
• Replace the relay.
• Replace the transformer.
• Replace the relay.
• Replace the relay.
No
Is the relay operation? No
Is the relay cut off?
Is the relay operation?
Yes
• Replace the P.C.B. complete.
Yes
No
• Replace the P.C.B. complete.
Yes
No
• Replace the P.C.B. complete.
Yes
• Replace the P.C.B. complete.
Yes
• Replace the P.C.B. complete.
Yes
Is the relay operation? No
Is the transformer operating? No
• Replace the transformer.
• Replace the P.C.B. complete.
Yes
Is the trial operating? No
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SR-TMJ181
4. TESTING PROCEDURE
4.1 Bubbling test
Input the pan in the main body, lightly rotate the pan clockwise and counter clockwise to settle the pan on the
heating plate properly.
1. Fill water until center area of the pan bottom is dipped and close the lid. Then turn on the boiling switch.
4.2 Evaporation test
1. Check that bubbling is proper, open the lid and place a weight.
2. Fully cover 2 to 3 sheet of tissue paper (gauze is also applicable) on the pan bottom and continuously
flow electric current.
Note : To prevent plastic parts from deformation caused by steam, be sure to open the lid fully.
Note : To prevent tissue paper from floating because of bubbling, previously hole the paper.
3. Water on the pan bottom is completely evaporated to be empty. This timing is an follows :
Within 1 minute before the boiling switch is turned off.
Within 1 minute after the boiling switch is turned off.
Place a weight so that its gravity center may be aligned at the center
2. When it beings boiling to produce steam. Remove the lid immediately check the bubbling condition on
the pan bottom.
3. As show in the figture.
If it is improper, it may result from the insufficient contact between the pan bottom and heating plate.
Check the pan bottom and the heating plate for foreign material remainder. Clean off the foreign materials
or replace the parts.
Bubbles generate through out the circumference of the pan bottom...............................................Proper
Bubbles does not generate on more than one quater part of the pan bottom circumference..........Improper
Bubbling
5 cm
40 cm
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SR-TMJ181
4.3 Heat reserving test
The above conditions are proper.
1. Put approx. 1 liter of water and the thermometer [ repairing tool (mercury thermometer ASN-150H) ]
in the pan, close the lid and turn on the boiling switch.
2. When the beings boiling to generate steam turn off the boiling switch.
Within 69°C - 77°C .....................................Proper
If outside 69°C - 77°C, check triac mounting for irregularity, if it is proper, replace warming heater.
3. Add water or keep the lid opened until the reading of the thermometer falls to approx. 70°C.
4. When it becomes approx. 70°C, close the lid. After the warming heater is activated for 1 hour or more,
check the heat reserving temperature.
Top view of pan
Holes on the
tissue paper
Pan flange
Tissue paper
Mercury thermometer
Urethane foam blocks
Mercury thermometer
Inner Pan
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