PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs if necessary: (1) Interlock operation, (2) Proper door closing, (3)
Seal and sealing surfaces (arcing, wear, and other damage), (4) Damage to or loosening of hinges and
latches (5) Evidence of dropping or abuse.
(c) Before turning on power to the microwave oven for any service test or inspection within the microwave
generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper
alignment, integrity, and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal and microwave
generation and transmission systems shall be repaired, replaced, or adjusted by procedures described
in this manual before the oven is released to the owner.
TABLE OF CONTENTS
1. SAFETY AND PRECAUTIONS....................................................................................................................................2
2. SPECIFICATIONS ........................................................................................................................................................3
3. EXTERNAL VIEW.........................................................................................................................................................4
3-1. OUTER DIMENSION ..........................................................................................................................................4
3-2. FEATURE DIAGRAM .........................................................................................................................................5
4. INSTALLATION ............................................................................................................................................................6
5. CONTROL PANEL .......................................................................................................................................................7
6. DISASSEMBLY AND ASSEMBLY ..............................................................................................................................8
7. INTERLOCK MECHANISM AND ADJUSTMENT.....................................................................................................20
8. TROUBLE SHOOTING GUIDE ..................................................................................................................................21
9. MESUREMENT AND TEST .......................................................................................................................................26
9-1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ........................................................................26
9-2. MICROWAVE RADIATION TEST ....................................................................................................................27
9-3. COMPONENT TEST PROCEDURE................................................................................................................28
9-4. COMPONENT ACTION....................................................................................................................................29
10. WIRING DIAGRAM...................................................................................................................................................30
11. EXPLODED VIEW AND PARTS LIST .....................................................................................................................32
11-1. DOOR ASSEMBLY.........................................................................................................................................32
11-2. CONTROL PANEL ASSEMBLY.....................................................................................................................32
11-3. TOTAL ASSEMBLY ........................................................................................................................................32
12. PRINTED CIRCUIT BOARD ....................................................................................................................................36
13. P.C.B CIRCUIT DIAGRAM.......................................................................................................................................41
1
Summary of Contents for KOC-9N4T7S
Page 5: ...4 3 EXTERNAL VIEW 542 329 514 1 1 OUTER DIMENSION 1 KOC 9N4T 9N5T 2 KOC 9N7T ...
Page 31: ...30 10 WIRING DIAGRAM 1 KOC 9N4T7S 9N4T7S24 9N5T7S 9N5T7R 9N5T7S21 9N7T7S 9N7T7S21 ...
Page 32: ...31 2 KOC 9N7T7SA2 ...
Page 38: ...37 MEASUREPOINT MP1 GND MP2 ...
Page 42: ...41 13 P C B CIRCUIT DIAGRAM ...
