Panasonic SR-TEJ10 Manuale utente
Service Manual
Order No. PHAT070802S3
Electric Rice Cooker/Steamer
Model : SR-TEJ10, SR-TEJ18
SIN-RBD
© 2007 Panasonic Home Appliance (Thailand) Co.,Ltd
All rights reserved. Unauthorized copying and distrbution
is a violation of law.
Specification
WARNING
This 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 with in this service information by anyone else could result in serious injury or death.
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
Model SR-TEJ10 SR-TEJ18
Power source AC 220V 50Hz
Power cooking 450W 630W
Power warming 32W 33W
Cooking capacity 1 ~ 5 cups 3 ~ 10 cups
Keep warm capacity 1 ~ 5 cups 3 ~ 10 cups
Center thermostat working temperature 134 ºC ± 6ºC 134 ºC ± 6ºC
Thermal fuse specification 142ºC 142ºC
Power cord 1.0 m 1.0 m
Dimension Width x Depth x Height
248 mm x 274 mm x 275 mm
Width x Depth x Height
276 mm x 274 mm x 275 mm
Weight 2.5 kg 3.1 kg
Accessories Steaming basket, Scoop, Measuring cup
Please use this manual together with Service Manual Order No.PHAT060410C3
SUPPLEMENT
2
SR-TEJ10, SR-TEJ18
1. PARTS IDENTEIFICATION
3
SR-TEJ10, SR-TEJ18
2. CIRCUIT DIAGRAM
3. WIRING DIAGRAM
N
L
Orange
Power
White Micro Switch
NCKeep Warm
Lamp
Rice Cook
Lamp
Red
Side
Heater
Cast
Heater
Thermal
Fuse
Thermal
Fuse
Black Black
No
E Green
Blue
Thermal Fuse Lead Wire A (Black)
Lame Lead Wire A (Black)
Lam Lead Wire C(Red)
Lam Lead Wire B (White)
Side Heater Lead Wire B (Blue)
Rice Cooking Lever
Lamp Lead Wire C (Red)
Side Heater Lead
Wire A (Red)
To Inlet
Body Earth Lead Wire (Green)
Lamp Lead Wire B (White)
Thermal Fuse Lead Wire B (Black)
4
SR-TEJ10, SR-TEJ18
4. TROUBLESHOOTING GUIDE
Condition Troubleshooting Remedy
Rice boiling section
● Rice is not boiled.
(The indication lamp does
not come on).
Is the power cord conductive?
NO
● Replace the cord.
Is the thermal fuse conductive?
NO
● Isolate the cause which melts
the thermal fuse, correct the
cause and replace the fuse.
Is the micro switch (across C to NC)
conductive when the riceboling process is
tumed on?
NO
● Replace the micro switch.
Is the rice boiling control lever properly
adjusted?
NO
● Replace the control lever.
● Rice is not boiled (The
indication lamp is lit.) Is the cast heater conductive? ● Replace the cast heater.
● The thermal fuse is blown
off.
Is the micro switch (across C to
NC) conductive when rice boiling
process is tumed off?
● Replace the micro switch.
Is the rice boiling control lever
properly adjusted?
● Adjust the control lever.
Does the center thermostat
operate properly? (Check with
the evaporation test.)
● Replace the center thermostat.
The operation is wrong.
(Forcibly flow the electric current.)
● Explain the proper operation.
When receiving a rice boiler to be repaired. Be sure to check that the main body is completely
provided with the inner pan and the inner lid, and ask the condition (phenemenon) of the trouble
in detail. Before troubleshooting single parts, be sure to disconnect the power supply plug from
the receptacle.
YES
YES
YES
NO
YES
NO
NO
NO
YES
YES
YES
5
SR-TEJ10, SR-TEJ18
Condition Troubleshooting Remedy
● Earlier cutoff
● Poor boiling-up
Too hard
Too soft
Cored rice
Insufficient boiling
Is the pan bottom properly
contacted with the cast heater?
(Check with the bubbling test.)
● Replace the inner pan or the
cast heater.
Does the center thermostat
operate properiy? (Check with
the operation test.)
● Replace Center thermostat.
Is the rice boiling control lever
properly adjusted?
● Adjust control lever.
Is the cast heater conductive?
● Replace the cast heater.
Improper operation
●
Rice is excessive or insufficient.
●
Water is excessive or insufficient.
● The switch is turned off once
during boiling.
● Immediately after the switch is
turned off, open the cap.
●
Rice has not been scooped and
mixed well.
● Explain the proper operation.
● Excessive burning (More
than light brown)
Does the center thermostat
operate properly?
(Check with the evaporation test.)
● Replace the center thermostat.
Is the rice boiling control lever
properly adjusted?
● Adjust the control lever.
Improper
● Rice is not washed sufficiently.
(Bran remains still.)
● The pan bottom is conditioned
to generate burning easily.
● Germ rice or wheat-mixed rice
is boiled.
● Mixed rice boiled.
●
The voltage is lower than specified.
● Water is excessive.
● Explain the proper operation.
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
NO
YES
NO
YES
6
SR-TEJ10, SR-TEJ18
5. TESTING PROCEDURE
5.1 Bubbling test
Input the pan in the main body, and lightly rotate the pan clockwise and counter clockwise to
settle the pan on the heating plate properly.
1. Fill water until the center area of the pan bottom is dipped, and close the lid. Then turn
on the switch.
2. When it begins boiling to produce steam, remove the lid and immediately check the
bubbling condition on the pan bottom.
3. As show in the right figure.
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
circuference .................................................................................................. Improper
If it is improper, it may result from the insufficient contact between the pan bottom and the
heating plate. Check the pan bottom and the heating plate for foreign material remained.
Clean off the foreign material or replace the parts.
5.2 Evaporation test
1. Check that bubbling is prper, and opern the lid and place a weight.
Note:
To prevent plastic parts from deformation caused by steam, be sure to open the lid fully.
5 cm.
.
m
c
0
4
Bubbling
Place a weight so that its gravitycenter may be aligened at the center.
2. Fully cover 2 to 3 sheet of tissue paper (gauze also applicable) on the pan bottom, and
continnously flow electric current.
Note: To prevent tissue paper from floating because of bubbling, previously hole the paper.
3.
Water on the pan bottom is completely evaporated to ve empty. This timimg is an follows:
Within 1 minute before the boiling switch is turned off.
Within 1 minute after the boiling switch is turned off.
7
SR-TEJ10, SR-TEJ18
5.4 Boiling control lever adjustment
Such a mechanical operation as center thermostat goes up and down is used to turn on and
off the micro-switch. Check and adjust this relationship as shown below.
The above conditions are proper.
Top view of pan
Holes on the
tissue paper
Pan flange
Tissue paper
5.3 Heat reserving test
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 it begins boiling to generate steam, turn off the boiling switch.
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.
Within 69°C to 77°C.................Proper.
If outside 69°C to 77°C, check TRS mounting for irregularity. If it is proper, replace warming heater.
Urethane foam blocks
Mercury thermometer
Inner pan Mercury
thermometer
When the boiling switch is turned on. When the boiling switch is turned off.
Checking The auxiliary lever presses the push-button
(The “WARM” lamp comes on.)
The auxiliary lever does not press the push-
button (The “COOK” lamp comes on.)
Adjusting To gain the above relationship, adjust the auxiliary lever by bending it with long nose pliers.
If it is improper, check the contact between the pan bottom and the heating plate, and
the center thermostat. Repair or replace if necessry.
8
SR-TEJ10, SR-TEJ18
6.1. Hinge cover removal (Hinge Cover)
1.
Remove the dew collector.
2. Remove the hinge cover mounting screws.
3. As show in the figure, insert a narrow flat head screw driver from just below and pry off the
hinge cover.
6.2. Inner enclosure and upper frame removal
1. As show in the figure, pry up three fastening hooks. Fixing the upper frame, turn the
inner enclosure in the arrow direction.
2. The upper frame will be seperated from the inner enclosure and the upper frame.
Note: When assembling, refer to the illustration without the position relation ship
between the inner enclosure and the upper frame.
6. DISASSEMBLING
9
SR-TEJ10, SR-TEJ18
7. EXPLODED VIEW
1
2
4
3
5
6
7
9
8
10
11
12
30
26
27
28
25
24
29
I
31
32
34
35
36 37
38
14
B
13
15
16
17
18
22
D
H
CE
F
23
20
19
21
G
10
SR-TEJ10, SR-TEJ18
8. PACKING VIEW
1
2
5
6
7
3
4
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