Panasonic SR-GA421 Service Manual
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Panasonic SR-GA421 Service Manual

Automatic rice cooker
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Table of Contents

Service Manual
SR-GA421/SR-GA281
Specification
Model
Detail
Country
Power Source
Cooking
Power
consumption
Warming
Cooking capacity
Center thermostat
working temperature
Keep warm temperature
Thermal fuse specification
Dimension (mm)
Width x Depth x Height
Weight
Power Cord (approx.)
Accessories
Specification subject to change without notice.
SR-GA421/SR-GA281/SR-GA721
COOK
WARM
SR-GA421
HK
SIN-DBD
SIN-RBD
220 V / 50 Hz
230 V / 50 Hz
220 V / 50 Hz
1400 W
5 ~ 23 L
429 x 369 x 300
5.5 kg
Measuring cup, Steaming basket
Automatic Rice Cooker
SR-GA281
MALAYSIA
HK
240 V / 50 Hz
220 V / 50 Hz
950 W
47.5 W
5 ~ 15 L
140 °C
More than equal to 80 °C (After 1 Hr. keep warm)
113
367
x 295
x 305
3.6 kg
1.0 m
© 2007 Panasonic Home Appliance (Thailand) Co.,Ltd
All rights reserved. Unauthorized copying and distrbution
is a violation of law.
Order No. PHAT070510C3
EXPORT
SR-928
Rice Cooking
Keep Warm
SR-GA721
SR-GA721
MALAYSIA
SIN-DBD
SIN-RBD
240 V / 50 Hz
230 V / 50 Hz
220 V / 50 Hz
2500 W
3 ~ 7 L
169 °C
248 x 247 x 255
10.1 kg
Rice scoop
USA
208 V / 60 Hz

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Summary of Contents for Panasonic SR-GA421

  • Page 1 More than equal to 80 °C (After 1 Hr. keep warm) 429 x 369 x 300 5.5 kg Measuring cup, Steaming basket © 2007 Panasonic Home Appliance (Thailand) Co.,Ltd All rights reserved. Unauthorized copying and distrbution is a violation of law. EXPORT...

  • Page 2: Table Of Contents

    3.TROUBLE SHOOTING GUIDE ...7-8 4.TESTING PROCEDURE ...9-10 5.EXPLODED VIEW & PACKING VIEW (SR-GA421/SR-GA281) ...11-12 6.REPLACEMENT OF PARTS LIST & PACKING LIST (SR-GA421/SR-GA281) ...13-14 7.EXPLODED VIEW & PACKING VIEW (SR-GA721) ...15-16 8.REPLACEMENT OF PARTS LIST & PACKING LIST (SR-GA721) ...17-18 This service information is designed for experienced repair technicians only and is not designed for use by the general public.

  • Page 3: Schematic Diagram & Wiring Diagram

    1. SCHEMATIC DIAGRAM & WIRING DIAGRAM SCHEMATIC DIAGRAM (SR-GA421) CAST HEATER T.F. (BIG) (SMALL) LAMP RESIST. RICE COOKING NEON LAMP LAMP RESIST. INPUT Green KEEP WARM NEON LAMP SWITCH MICA HEATER ASS’Y SCHEMATIC DIAGRAM (SR-GA281) Cast Heater T.F. T.F. Gray...

  • Page 4: Schematic Diagram & Wiring Diagram

    SR-GA421/SR-GA281/SR-GA721 1. SCHEMATIC DIAGRAM & WIRING DIAGRAM SCHEMATIC DIAGRAM (SR-GA721) WIRING DIAGRAM (SR-GA721) Cord Wire Earth (Green) Cord Wire Blue (N) Cord Wire Brown (L) Heater lead wire B (grey) Thermal fuse lead wire (Blue) CAST HEATER Blue (SMALL) (MIDDLE) (BIG) LAMP RESIST.

  • Page 5: Switch-On Preventive System

    This puts the micro-switch in the warming position. 2) When the pan is not in place within the rice cooker, the center thermostat is not depressed. a. In this condition, the outer spring is not compressed within the center thermostat preventing the metal from reaching its normal operating position.
  • Page 6 SR-GA421/SR-GA281/SR-GA721 2. FUNCTION OF CENTER THERMOSTAT AND THERMALFUSE C. Thermal Fuse The thermal fuse is used to open the circuit to the cooking heater when the temperature has gone unusually high. This happens in cases such as incomplete contact between the heater and pan or if the switch buttons is forced to stay on keeping the heater energized abnormally.

  • Page 7: Troubleshooting Guide

    Switch lever properly adjust? No continuity of sheathed heater? Forced application of current? Center thermostat defective? (Check with evaporation test) Usage correct? SR-GA421/SR-GA281/SR-GA721 Remedy ● Replace AC cord. ● Locate cause for fusing and replace fuse. ● Replace Frame ass’y.

  • Page 8: Trouble Shooting Guide

    SR-GA421/SR-GA281/SR-GA721 3. TROUBLESHOOTING GUIDE Symptom ● Earlier Switching-off ● Poor cooking finish Too hard Too soft Half-boiled Keep warm function ● Warming fails (Warm lamp not shown) ● Warming fails (Warm lamp shown) Diagnosis Poor contact between pan and sheathed...

  • Page 9: Testing Procedure

    5 cm. Center thermostat Holes of tissue paper COOK WARM SR-GA421/SR-GA281/SR-GA721 Water Level Figure 3 Pan (viewed from above) Pan flange section Tissue paper...
  • Page 10 SR-GA421/SR-GA281/SR-GA721 4. TESTING PROCEDURE 3. 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. When the boiling switch is turned on.

  • Page 11: Exploded View & Packing View (Sr-Ga421/Sr-Ga281)

    SR-GA421/SR-GA281/SR-GA721 5. EXPLODED VIEW & PACKING VIEW (SR-GA421/SR-GA281) EXPLODED VIEW (SR-GA421/SR-GA281)

  • Page 12: Exploded View & Packing View (Sr-Ga421/Sr-Ga281)

    SR-GA421/SR-GA281/SR-GA721 5. EXPLODED VIEW & PACKING VIEW (SR-GA421/SR-GA281) PACKING VIEW (SR-GA421/SR-GA281)

  • Page 13: Replacement Of Parts List & Packing List (Sr-Ga421/Sr-Ga281)

    6. REPLACEMENT OF PARTS LIST & PACKING LIST (SR-GA421/SR-GA281) PARTS LIST Ref. Part Name LID ASS’Y LID HANDLE MEASURING CUP ALUMINIUM PAN THERMOSTAT ASS’Y CAST HEATER ASS’Y HANDLE FOR BOBY BODY COMPLETE NAME PLATE SWITCH ASS’Y SWITCH PANEL DECORATIVE PANEL LAMP BOARD ASS’Y...

  • Page 14: Replacement Of Parts List & Packing List (Sr-Ga421/Sr-Ga281)

    SR-GA421/SR-GA281/SR-GA721 6. REPLACEMENT OF PARTS LIST & PACKING LIST (SR-GA421/SR-GA281) PARTS LIST Ref. Part Name CORD BUSHING SCOOP CAUTION LABEL (BODY) LIST OF SCREW Ref. Part Name TAPPING SCREW SEMS SCREW TAPPING SCREW TAPPING SCREW SEMS SCREW TAPPING SCREW TAPPING SCREW PACKING LIST Ref.

  • Page 15: Exploded View & Packing View (Sr-Ga721)

    SR-GA421/SR-GA281/SR-GA721 7. EXPLODED VIEW & PACKING VIEW (SR-GA721) SR-GA721 / U.S. EXPLODED VIEW (SR-GA721)
  • Page 16 SR-GA421/SR-GA281/SR-GA721 7. EXPLODED VIEW & PACKING VIEW (SR-GA721) PACKING VIEW (SR-GA721)

  • Page 17: Replacement Of Parts List & Packing List (Sr-Ga721)

    AQB01A298 AQK00T295 AQE50T295 AQS00T295-0U AQL20T29510U AQL20M298-0U AQL20S298-0U AQE30T2951 AQE13T2951WU AQE13T2952U2U AQY50M298-WU AQY50S298-WU AQY50V298-WU AQY50A298-N9 AQN00M298W9U AQN00A298W9U AQN10T295-W9 ASR22W-590-K AQN21M298-$$ AQN85T29510U AQN85A29800U AQN86T295 AQN86A298 AQL70T295-0U AQL92T294 ASR175T120A AQH20T2951WU AQQ00T295-0U AQQ00M298-0U AQQ00A298-0U AQE20T2951 AQS22T2951$$ ARB32A298 SR-GA421/SR-GA281/SR-GA721 SR-GA721 White White Silver SIN-DBD SIN-RBD...

  • Page 18: Replacement Of Parts List & Packing List (Sr-Ga721)

    SR-GA421/SR-GA281/SR-GA721 8. REPLACEMENT OF PARTS LIST & PACKING LIST (SR-GA721) LIST OF SCREW Ref. Part Name TAPPING SCREW P.F. HOLD SCREW SEMS SCREW TAPPING SCREW TAPPING SCREW SEMS SCREW TAPPING SCREW TAPPING SCREW TAPPING SCREW TAPPING SCREW PACKING LIST Ref.

This manual is also suitable for:

Sr-ga281Sr-ga721

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