Troubleshooting - Samsung CO88R Service Manual

7. Troubleshooting

1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.
2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.
3. DISCHARGE THE HIGH VOLTAGE CAPACITOR.
4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE FROM THESE
PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON. TO DO OTHERWISE MAY RESULT IN A FALSE
READING OR DAMAGE TO YOUR METER.
5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC DISCHARGE MAY DAMAGE IT.
ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP.
7-1 Weight sensor
7-1-1 Specification of weight sensor
-Range of weight measurement......in cooking: 0 - apprx. 2000g(Weight of over round dish)
(Specification of weight sensor: 0-apprx. 4000g)
7-1-2 Method of adjusting 0 point.
Operation
1. Plug in the cord.
2. Open the door to put rotating
plate and round dish into range.
3. Close the door and press the "P/L (
key and "( )" key simultaneously.
4. Open the door to put a weight of balance
of 1kg(or two of 500g) on the center of
round dish(Note 1).
5. Close the door and press simultaneously
the "P/L ( )" and "(
6. Press the "Cancel" key.
(Note1) Substitute the weight of balance with a beaker of 1kg total weight filled with tap water).
Samsung Electronics
PRECAUTION
1. All the displays of display unit get on.
1. As above.
)"
1. "00" display lights up. (Lamp in range turns on
and round dish rotates).
2. "285-335" light up after about 12 second.
1. Same as 3-2.
1. "11" display lights up. "11" gets out after about
) keys.
12 seconds.
2. After about 3 seconds after "11" is out,
"35-65" light up.
1. "0" display lights up. (The inside lamp turns off
and rotation of the round dish stops).
Display in operation
6-3