Daewoo KUD-UD121DCR, Service Manual

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5-1. Testing Mode
PCB and other electronic parts will be tested without water supply whether they are normal or not.
1) Process
press power button --> press "SPIN" button 3 times with pressing "WASH" button --> 'L d' will be shown on LED -->
Whenever pressing "TEMP" button 1 time, below process will be occurred.
MICOM Ver. --> L C (Lock Closed) --> run (count) ---> b1, b2, b3, b4, b5, b6, b7
-> F (Fan Motor) -> H (Hot V/V)
-> C (Cold V/V) -> P (prewashing V/V) -> d ( dry V/V) -> bb (bubble)
-> dr (drain motor) -> L O(Lock S/W Open)
2) More details
1 When turn on 'LOCK' signal, all process is conducting normaly.
2 When working starts, the PCB displays all the sensor conditions.
3 In this case, BLDC Motor is not tested. In order to test it, select spin or rinse.
5-2. Continous testing mode
1) Process
after pressing "WASH", "RINSE", "SPIN" button simultaniously, press "POWER" button.
ALL LED On --> SPIN button ---> ALL LED off
--> L C (Lock Close) ---> r (Motor right) --> L (Motor Left)
--> F ( Fan Motor) ---> H (Hot V/V) --> C (Cold V/V) --> b (Pre whsh V/V) --> d ( dry V/V)
--> bb (bubble) --> h1 (Wash heater)--> h2(Dry heater) --> dr (Drain motor On)
-->L O(Lock S/W Open)
2) More tails
1 LED test can be done with all LED On.
2 All sensor conditions will be shown on PCB during processing.
5. TEST MODE