Panasonic SR-TMG18 User manual

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2. WIRING DIAGRAM
nge)
Term
SR-TMG18
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3. TROUBLESHOOTING GUIDE
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 / Brown 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
SR-TMG18
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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).
SR-TMG18
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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
SR-TMG18
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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
SR-TMG18
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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.
4.4 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 screwdriver from just below and pry off the hinge cover.
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
SR-TMG18
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4.5 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 relationship between the inner
enclosure and the upper frame.
SR-TMG18
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4.6 Disassembly a control unit
1. Pull out the hinge shaft.
2. Pulling out wiring for lid heater
and then pulling out outer lid ass’y.
3. Loosen a screw for bottom frame.
4. Loosen a screw for P.C.B. base 2 pcs.
5. Use a screwdriver to pry bottom frame.
6. Pulling out body from upper frame.
7. Pulling out a switch ass’y.
8. Loosen screw for wiring.
9. Loosen a screw for P.C.B. from
P.C.B. base.
Screw
SR-TMG18
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4.7 Disassembly cast heater and thermostat case ass’y
1. Loosen a screw for cast heater.
2. Bending leg of thermostat.
3. Lift a thermostat.
Screw
4.8 Disassembly a side heater
1. Pulling out a side heater and after that
if will replace new side heater, keep a
distance between 23 ~ 27 mm.
(see a picture)
23~27
SR-TMG18
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5. PARTS EXPLODED VIEW AND REPLACEMENT PARTS LIST
5.1 Parts Exploded View : Body
C
13
14
15
16
17
18
19
20 F
G
23
1
2
4
3
5
6
7
9
8
10
11
12
24
29
30 31 32
25
26
H
27
B
D
E
J
28
Panasonic
MICROCOMPUTER
22
21
SR-TMG18
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5.2 Parts Exploded View : Packing
7
8
2
6
3
4
5
1
SR-TMG18
MENUBOOK
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5.3 Replacement Parts List : SR-TMG18
Important safety notice :
Parts List
REF.
NO. PART NAME PART NO. SAFETY
Components identified by mark have special characteristics important for safety.
When replacing any of these components, use only manufacturer’s specified part.
REMARK
COUNTRIES / Q’TY
SIN-
RBD MAL SIN-
DBD INDO RUS
1
1
1
1
1
1
1
1
1
1
11111
11111
11111
11111
11111
11111
11111
11111
111
1
1
11111
11111
11111
111
1
1
1
1
1
11
22222
1111
1
1
1
11
1
1
OUTER LID ASS’Y ARB01T934W9U
S
S
S
S
S
S
S
S
S
S
S
S
ARB01M934W9U
ARB01S934W9U
ARB01L934W9U
ARB01K934W9U
1
STEAM DOME ARB19T920-W92
STEAM VENT ARC00T9201W93
STEAM VENT HOLDING PACKING ARB82T9204
HOOK LEVER ARE05H616-W95
HOOK LEVER SPRING ARE06H6166
HOOK LEVER BASE ARC31H6167
HANDLE COVER ARB15T920-W98
HANDLE ARB10T920-W99
LID CAUTION LABEL ARB32H920
ARB32L934
ARB32L934
ARB32K9361
10
OUTER LID COMP. ARB01T934-WU
ARB01M934-WU
ARB01S934-WU
ARB01L934-WU
ARB01K934-WU
11
FLUORO PAN ARE50T9341
ARE50H616
12
CAST HEATER ASS’Y ARL20T908-0U
ARL20M928-0U
ARL20S928-0U
1
1
1
13
THERMOSTAT CASE ASS’Y ARS14T908-0U
ARS14L815-0U
14
OUTER SPRING ARS61H61615
UPPER FRAME ARE00A6161W916
HINGE SHAFT ARB74H61617
PROTECTING FRAME ARE20T93418
SIDE HEATER ASS’Y ARL10T75110U
ARL10S928-0U
ARL10M928-0U
19
BODY ASS’Y
ARE10T751-MB
ARE10T928Z4U
ARE10T928MBU
NO ASS’Y EARTH LEAD WIRE
20
SR-TMG18
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Parts List
REF.
NO. PART NAME PART NO. SAFETY REMARK
COUNTRIES / Q’TY
SIN-
RBD MAL SIN-
DBD INDO RUS
111
1
1
111
1
1
11111
11111
11111
22222
1
1
1
1
1
1
11
1
1
11111
11111
11111
11111
SWITCH ASS’Y ARN01H934UHU S
S
S
S
S
S
S
S
S
S
S
S
S
ARN01L934UHU
ARN01K934UHU
ARN21H9341UH
ARN21L934-UH
21
DECORATIVE PANEL
ARN21K934-UH
22
HINGE COVER ARE40H6161W923
DEW COLLECTOR ARK10H616-C024
BOTTOM FRAME UNIT ARH30T920W9U25
FOOT RUBBER ARH90H66326
NAME PLATE ARY30V934-CS
ARY30M934-CS
ARY30S934-CS
ARY30L934-MB
ARY30K934-MB
27
POWER CORD ASS’Y ARQ00T934-0U
ARQ00L934-0U
ARQ00T920-0U
ARQ00M96110U
28
INLET ARG10T9200U
ARK53H616-W9
ASR792-454BK
29
STEAM BASKET30
MEASURING CUP31
SCOOP ASR79WT281AK32
SR-TMG18
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SR-TMG18
Screws
REF.
NO. PART NAME PART NO. SAFETY REMARK
COUNTRIES / Q’TY
SIN-
RBD MAL SIN-
DBD INDO RUS
22222
33333
11111
11111
11111
11111
11111
22222
TAPPING SCREW XTB4+10GFJ FOR HANDLE
XYN4+C10FNS
XYN4+C7FNS
XWA4BPW
XTN4+8FFJ
A
SEMS SCREW FOR CAST HEATER ASSY
FOR INTERNAL WIRING
FOR BODY EARTH LEAD WIRE
B
SEMS SCREWC
SPRING WASHER
ASR118-972-W
D
FOR BODYTAPPING SCREWE
FOR BOTTOM FRAME AND BODY
FOR HINGE COVER
FOR BOTTOM FRAME AND
PCB BASE
TAPPING SCREWF
TAPPING SCREW XTN4+16AVWG
TAPPING SCREW XTB4+25CFJH
Packing List
REF.
NO. PART NAME PART NO. SAFETY REMARK
COUNTRIES / Q’TY
SIN-
RBD MAL SIN- DBD INDO RUS
1
1
1
1
1
11111
11111
11111
ARZ01V934-CS
S
S
S
S
ARZ01M934-CS
ARZ01S934-CS
ARZ01L934-MB
ARZ01K934-MB
1
ARZ04T920-0UUPPER PAD ASS’Y
INNER PACKING CASE
2
LOWER PAD ASS’Y ARZ11T920-0U3
RUST PROOF PAPER ASR758T344B4
11111POLYETHYLENE SHEET ASR762T929-K5
11111CORD PROTECTOR ASR761H915-K6
1
11
1
1
OPERATING INSTRUCTION ARZ19V934
ARZ19M934
ARZ19L934
ARZ19K934
7
111
1
MENU BOOK ARZ20V934
ARZ20L934
8
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DETAIL CHANGE NOTICE
REVISION ITEM NO. PAGE DETAIL REMARK
JAN. 2010 1 14 CHANGE PART NO. OF PAN CHANGE COATING FROM 1 TO 2 LAYER
AUG. 2011 1 2 ADD NEW PAGE FOR CONTENT IT’S PAGE NO. 2
2 2 - 18 NEW RUNNING PAGE NO. & SUBJECT NEW PAGE NO. 2 - 18
3 16 CHANGE PART NO. OF POWER CORD
ASSY
CHANGE 10A 250V TO 13A 250V
SR-TMG18
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