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Panasonic SR-GA281 - page 1
Service Manual Order No. PHA T070510C3 Automatic Rice Cooker SR-GA421/SR-GA281/SR-GA721 EXPORT © 2007 Panasonic Home Appliance (Thailand) Co.,Ltd All rights reserved. Unauthorized copying and distrbution is a violation of law . Specification Specification subject to change without notice. Model SR-GA421 SR-GA281 SR-GA721 Detail Country HK SIN-DBD ...
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Panasonic SR-GA281 - page 2
2 SR-GA421/SR-GA281/SR-GA721 W ARNING 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 ...
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Panasonic SR-GA281 - page 3
3 SR-GA421/SR-GA281/SR-GA721 L N MICA HEA TER ASS’Y CAST HEA TER LAMP RESIST . T .F . INPUT SWITCH LAMP RESIST . KEEP WARM NEON LAMP (BIG) (SMALL ) E Green RICE COOKING NEON LAMP Lamp Lead Wire A (Orange) Lead Wire (Orange) Lamp Lead Wire C (Brown) Twist one time Lamp Lead Wire B (Gray) Lever Earth Lead Wire (Green) Silicone Tube (Blue) N Twist t ...
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Panasonic SR-GA281 - page 4
4 SR-GA421/SR-GA281/SR-GA721 Cord Wire Earth (Green) Cord Wire Blue (N) Cord Wire Brown (L) Heater lead wire B (grey) Thermal fuse lead wire (Blue) Thermal fuse lead wire (Grey ) User positio n Heater lead wire C (Brown ) Heater lead wire A (Red) Grey Brown Red Cathode lead wire (Brown ) Keep warm lamp lead (Red ) 1 0 ˚ ± 5 ˚ MICA HEA TER ASS’ ...
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Panasonic SR-GA281 - page 5
5 SR-GA421/SR-GA281/SR-GA721 2. FUNCTION OF CENTER THERMOST A T AND THERMALFUSE A. Center Thermostat The center thermostat senses when the bottom of the rice cooker pan reach 134°C ± 6°C. And it’s action turns of f the cooking cycle, and starts the warming cycle. Refer to these figures showing the center thermostat construction and cooking po ...
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Panasonic SR-GA281 - page 6
6 SR-GA421/SR-GA281/SR-GA721 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 . This fuse is not a resetting ...
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Panasonic SR-GA281 - page 7
7 SR-GA421/SR-GA281/SR-GA721 3. TROUBLESHOOTING GUIDE Symptom Diagnosis Remedy Cooking function ● Cooking fails (Cooking lamp is not shown) No continuity of cord? Y es ● Replace AC cord. No continuity of thermal fuse? Y es ● Locate cause for fusing and replace fuse. No continuity of micro switch? Y es ● Replace Frame ass’y . Center thermo ...
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Panasonic SR-GA281 - page 8
8 SR-GA421/SR-GA281/SR-GA721 3. TROUBLESHOOTING GUIDE Symptom Diagnosis Remedy ● Earlier Switching-off ● Poor cooking finish T oo hard T oo soft Half-boiled Poor contact between pan and sheathed heater? (Check with bubbling test) Y es ● Replace pan or sheathed heater . Center thermostat defective? (Check with evaporation test) Y es ● Repla ...
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Panasonic SR-GA281 - page 9
9 SR-GA421/SR-GA281/SR-GA721 4. TESTING PROCEDURE 1. Bubbling test Input the pan in the main body , and lightly rotate the pan clockwise and counter clockwise to set 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 boiling switch. 2. When it beings boiling t ...
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Panasonic SR-GA281 - page 10
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. When the boiling switch is turned off. Checking The auxiliary ...
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Panasonic SR-GA281 - page 11
1 1 SR-GA421/SR-GA281/SR-GA721 5. EXPLODED VIEW & P ACKING VIEW (SR-GA421/SR-GA281) EXPLODED VIEW (SR-GA421/SR-GA281) ...
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Panasonic SR-GA281 - page 12
12 SR-GA421/SR-GA281/SR-GA721 5. EXPLODED VIEW & P ACKING VIEW (SR-GA421/SR-GA281) P ACKING VIEW (SR-GA421/SR-GA281) ...
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Panasonic SR-GA281 - page 13
13 SR-GA421/SR-GA281/SR-GA721 6. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA421/SR-GA281) P ARTS LIST Ref. No. Part Name Part No. SR-GA421 SR-GA281 Silver White White White White Silver HK SIN- DBD SIN- RBD MAL HK HK 1 LID ASS’Y AQB01T29310U 1 1 1 1 AQB01T29410U 1 1 2 LID HANDLE AQB10T2941K0 1 1 1 1 1 1 3 LID AQB01T293 1 1 1 1 AQB01T294 ...
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Panasonic SR-GA281 - page 14
14 SR-GA421/SR-GA281/SR-GA721 6. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA421/SR-GA281) LIST OF SCREW Ref. No. Part Name Part No. SR-GA421 SR-GA281 Silver White White White White Silver HK SIN- DBD SIN- RBD MAL HK HK A T APPING SCREW XTN4+10BVW 2 2 2 2 2 2 B SEMS SCREW XYN5+C10FNS 1 1 1 1 1 1 C T APPING SCREW XTN4+10BFJ 1 1 1 1 1 1 D T ...
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Panasonic SR-GA281 - page 15
15 SR-GA421/SR-GA281/SR-GA721 7. EXPLODED VIEW & P ACKING VIEW (SR-GA721) EXPLODED VIEW (SR-GA721) SR-GA721 / U.S. ...
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Panasonic SR-GA281 - page 16
16 SR-GA421/SR-GA281/SR-GA721 7. EXPLODED VIEW & P ACKING VIEW (SR-GA721) P ACKING VIEW (SR-GA721) ...
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Panasonic SR-GA281 - page 17
17 SR-GA421/SR-GA281/SR-GA721 8. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA721) P ART LIST Ref. No. Part Name Part No. SR-GA721 White White White Silver MAL SIN-DBD SIN-RBD USA 1 LID ASS’Y AQB01T29510U 1 1 1 1QB01A298-0U 1 2 LID HANDLE AQB10T2941K0 1 1 1 1 3 LID AQB01T2951 1 1 1 AQB01A298 1 4 MEASURING CUP AQK00T295 1 1 1 1 5 P AN AQE5 ...
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Panasonic SR-GA281 - page 18
18 SR-GA421/SR-GA281/SR-GA721 8. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA721) LIST OF SCREW Ref. No. Part Name Part No. SR-GA721 White White White Silver MAL SIN-DBD SIN-RBD USA A T APPING SCREW XTN4+10BVW 2 2 2 2 B P .F . HOLD SCREW XYN4+C10FNS 4 4 4 4 C SEMS SCREW XYN5+C10FNS 1 1 1 1 XYN5+C10FNS 1 1 1 1 D T APPING SCREW XTN4+8BFJ 2 2 ...
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