R-959SLMAA - Sharp Home Appliance Service Manual (repair manual). Page 2

CONTENTS

CHAPTER 1. BEFORE SERVICING
[1]  GENERAL IMPORTANT INFORMA-

TION ........................................................... 1-1

[2] WARNING 

MICROWAVE 

RADIATION ....... 1-1

[3] WARNING................................................... 1-1

CHAPTER 5. OPERATION SEQUENCE
[1] OFF 

CONDITION........................................ 5-1

[2]  MICROWAVE COOKING CONDITION....... 5-1
[3]  GRILL COOKING CONDITION .................. 5-2
[4] CONVECTION 

COOKING 

CONDITION..... 5-2

[5]  COMBI COOKING CONDITION ................. 5-2
[6] ON/OFF 

TIME 

RATIO ................................. 5-2

[7] AUTOMATIC 

COOKING ............................. 5-2

[8]  POWER OUTPUT REDUCTION ................ 5-3
[9] FAN 

MOTOR 

OPERATION......................... 5-3

[10] CONVECTION MOTOR OPERATION........ 5-3

CHAPTER 6. FUNCTION OF IMPORTANT COM-
PONENTS
[1]  DOOR OPEN MECHANISM ....................... 6-1
[2] SWITCH...................................................... 6-1
[3] FUSE .......................................................... 6-1
[4] TC 

TRANSFORMER .................................. 6-1

[5] THERMAL 

CUT-OUT.................................. 6-1

[6] ASYMMETRIC 

RECTIFIER ........................ 6-1

[7] NOISE 

FILTER............................................ 6-2

[8] MOTOR....................................................... 6-2
[9] HEATING 

ELEMENT .................................. 6-2

[10] CONVECTION COOKING SYSTEM .......... 6-2
[11]  FIRE SENSING FEATURE ......................... 6-2
[12]  OPEN JUDGE BY THERMISTOR .............. 6-2
[13]  DAMPER OPEN-CLOSE MECHANISM..... 6-3

CHAPTER 8. TEST PROCEDURES
[1]  A: MAGNETRON TEST .............................. 8-1
[2]  B: HIGH VOLTAGE TRANSFORMER 

TEST........................................................... 8-1

[3]  C: HIGH VOLTAGE RECTIFIER TEST....... 8-2
[4]  D: HIGH VOLTAGE CAPACITOR TEST..... 8-2
[5] E: 

SWITCH 

TEST ....................................... 8-2

[6]  F: THERMISTOR TEST .............................. 8-2
[7]  G: THERMAL CUT-OUT TEST................... 8-3
[8]  H: MOTOR WINDING TEST ....................... 8-3
[9]  I: NOISE FILTER TEST .............................. 8-3
[10]  J: BLOWN FUSE 20A ................................. 8-3

[11]  K: BLOWN FUSE F8A (NOISE FILTER)..... 8-3
[12]  L: GRILL HEATING ELEMENTS (TOP) 

AND CONVECTION HEATING ELE-
MENT TEST................................................ 8-4

[13]  M: CONTROL PANEL ASSEMBLY 

TEST........................................................... 8-4

[14]  N: KEY UNIT TEST..................................... 8-5
[15]  O: RELAY TEST ......................................... 8-5
[16]  P: PROCEDURES TO BE TAKEN 

WHEN THE FOIL PATTERN ON THE 
PRINTED WIRING BOARD (PWB) IS 
OPEN.......................................................... 8-5

CHAPTER 9. TOUCH CONTROL PANEL ASSEM-
BLY
[1]  OUTLINE OF TOUCH CONTROL PAN-

EL ............................................................... 9-1

[2]  SERVICING FOR TOUCH CONTROL 

PANEL ........................................................ 9-2

CHAPTER 11. COMPONENT REPLACEMENT 
AND ADJUSTMENT PROCEDURE
[1] BEFORE 

OPERATING ..............................11-1

[2]  OUTER CASE REMOVAL .........................11-1
[3]  HIGH VOLTAGE COMPONENTS RE-

MOVAL.......................................................11-1

[4]  HIGH VOLTAGE TRANSFORMER RE-

MOVAL.......................................................11-2

[5] MAGNETRON 

REMOVAL .........................11-2

[6]  CONTROL PANEL ASSEMBLY RE-

MOVAL.......................................................11-2

[7]  GRAPHIC SHEET AND MEMBRANE 

SWITCH REPLACEMENT.........................11-2

[8] FAN 

MOTOR 

REREPLACEMENT.............11-3

[9] TURNTABLE 

MOTOR 

REPLACEMENT....11-3

[10]  CONVECTION MOTOR AND CONVEC-

TION HEATING ELEMENT REMOVAL .....11-4

[11]  POSITIVE LOCK CONNECTOR RE-

MOVAL.......................................................11-4

[12]  OVEN LAMP SOCKET REMOVAL ............11-5
[13]  POWER SUPPLY CORD REPLACE-

MENT.........................................................11-5

[14]  GRILL HEATING ELEMENTS REMOV-

AL...............................................................11-5

[15]  MONITORED LATCH SWITCH, MONI-

TOR SWITCH AND STOP SWITCH RE-
MOVAL.......................................................11-5

[16]  MONITORED LATCH SWITCH, STOP 

SWITCH AND MONITOR SWITCH AD-
JUSTMENT................................................11-6

[17] DOOR REPLACEMENT ............................11-6