CONTENTS
CHAPTER 1. BEFORE SERVICING
[1] GENERAL IMPORTANT INFORMA-
TION ........................................................... 1-1
[2] CAUTION MICROWAVE RADIATION ........ 1-1
[3] WARNING................................................... 1-1
CHAPTER 2. WARNING TO SERVICE PERSON-
NEL
[1] Before Servicing.......................................... 2-1
[2] When the testing is completed,................... 2-2
[3] After repairing.............................................. 2-2
[4] Before replacing the Printed Wiring
Board .......................................................... 2-2
CHAPTER 3. PRODUCT SPECIFICATIONS
CHAPTER 4. APPEARANCE VIEW
[1] OVEN.......................................................... 4-1
[2] TOUCH CONTROL PANEL ........................ 4-1
CHAPTER 5. OPERATION SEQUENCE
[1] OFF CONDITION........................................ 5-1
[2] MICROWAVE COOKING CONDITION....... 5-1
[3] SENSOR COOKING CONDITION.............. 5-1
[4] POWER OUTPUT REDUCTION ................ 5-2
CHAPTER 6. FUNCTION OF IMPORTANT COM-
PONENTS
[1] DOOR OPEN MECHANISM....................... 6-1
[2] 1ST. LATCH SWITCH AND 2ND. IN-
TERLOCK RELAY CONTROL SWITCH..... 6-1
[3] MONITOR SWITCH ................................... 6-1
[4] FUSE F10A................................................. 6-1
[5] INVERTER UNIT ........................................ 6-1
[6] OVEN TEMPERATURE FUSE ................... 6-1
[7] TURNTABLE MOTOR................................. 6-1
[8] FAN MOTOR............................................... 6-1
[9] NOISE FILTER............................................ 6-1
[10] HUMIDITY SENSOR .................................. 6-1
CHAPTER 7. TROUBLESHOOTING GUIDE
CHAPTER 8. TEST PROCEDURES
[1] A: MAGNETRON (MG) TEST..................... 8-1
[2] B: SWITCH TEST ....................................... 8-2
[3] C: TEMPERATURE FUSE TEST................ 8-2
[4] D: MOTOR WINDING TEST....................... 8-2
[5] E: FUSE F10A ............................................ 8-2
[6] F: NOISE FILTER TEST ............................. 8-3
[7] G: TOUCH CONTROL PANEL ASSEM-
BLY TEST ................................................... 8-3
[8] H: KEY UNIT (MEMBRANE SWITCH)
TEST........................................................... 8-4
[9] I: PROCEDURES TO BE TAKEN WHEN
THE FUSE F1 ON THE PRINTED WIR-
ING BOARD (PWB) IS OPEN..................... 8-4
[10] J: HUMIDITY SENSOR TEST .................... 8-4
CHAPTER 9. CHECK IN THE EVENT OF NO MI-
CROWAVE COOKING
CHAPTER 10. SERVICING FOR TOUCH CON-
TROL PANEL
[1] SERVICING FOR TOUCH CONTROL
PANEL ...................................................... 10-1
CHAPTER 11. PRECAUTIONS FOR USING LEAD-
FREE SOLDER
CHAPTER 12. COMPONENT REPLACEMENT
AND ADJUSTMENT PROCEDURE
[1] BEFORE OPERATING ............................. 12-1
[2] OUTER CASE CABINET REMOVAL........ 12-1
[3] INVERTER UNIT REPLACEMENT........... 12-2
[4] MAGNETRON REMOVAL ........................ 12-2
[5] POSITIVE LOCK CONNECTOR (NO-
CASE TYPE) REMOVAL .......................... 12-3
[6] CONTROL PANEL ASSEMBLY RE-
MOVAL...................................................... 12-3
[7] GRAPHIC SHEET AND MEMBRANE
SWITCH REPLACEMENT........................ 12-3
[8] TURNTABLE MOTOR REMOVAL ............ 12-3
[9] COOLING FAN MOTOR REMOVAL......... 12-4
[10] POWER SUPPLY CORD REPLACE-
MENT........................................................ 12-4
[11] 1ST. LATCH SWITCH, 2ND. INTER-
LOCK RELAY CONTROL SWITCH AND
MONITOR SWITCH REMOVAL................ 12-5
[12] 1ST. LATCH SWITCH, 2ND. INTER-
LOCK RELAY CONTROL SWITCH AND
MONITOR SWITCH ADJUSTMENT......... 12-5
[13] DOOR REPLACEMENT ........................... 12-6
CHAPTER 13. MICROWAVE MEASUREMENT
CHAPTER 14. CIRCUIT DIAGRAMS
[1] Oven Schematic........................................ 14-1
[2] Pictorial Diagram (Figure S-1) .................. 14-2
[3] Control Unit Circuit (Figure S-2)................ 14-3
[4] Printed Wiring Board (Figure S-3)............. 14-4
[5] Inverter Unit Circuit (Figure S-4)............... 14-5
Parts Guide
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