DISCO DAD 2H/6T, Руководство по устранению неисправностей

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WHAT AND HOW TO CHECK REMEDIAL ACTION
5-1. (1) Check the operation after replacing PB6 (EAUA--
087703) with a spare P.C. board.
5-1. (1) If there is no change after the replacement, check
other parts. If it operates, correctly, the board is
defective.
(2) Check cable connecting CJ2 (PB6) and magnetic
valve (VAV3). (Turn on and off the magnetic valve
repeatedly to see if it sounds - clicks.)
(2) Cable and magnetic valve are normal if the valve
sounds, check other parts such as water pipe system.
If there is no sound, either cable or magnetic valve
may be defective.
5-2. (1) Check the operation after replacing PB6 (EAUA--
087703) with a spare P.C. board.
5-2. (1) If the situation remains the same, check the magnetic
valve itself. If it operates, correctly the board is
defective.
5-3. (1) Check the operation after replacing PB6 (EAUA--
087703) with a spare P.C. board.
5-3. (1) If there is no change after the replacement, check
other parts. If it operates, correctly the board is
defective.
(2) Check the cable connecting CJ3 and the lamps, as
well as the actual lamps.
(2) If the lamp filament is broken, replace the lamp. If
the wire is broken, repair it.
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