Amana RSS, RST P.C. Board/Display Board Interconnect Cable, Operation And Service Procedures

OPERATION AND SERVICE PROCEDURES

(SLIDE IN MODELS)

ohmmeter leads to Pins 10 and 17 at the display board J1 connector and then reversing the ohmmeter leads. One reading should indicate infinite ohms and the other reading should indicate low ohms (CR1 diode conduction resistance). If a zero (0), or infinite ohms reading is indicated with the meter leads connected in both directions, the display board should be replaced.

P.C. BOARD/DISPLAY BOARD

INTERCONNECT CABLE

The 20 pin ribbon cable that connects the Clock/Timer P.B. board to the display board can be checked for continuity using an ohmmeter set to the low ohms scale. Refer to Figure 29 and 30 for correct pin identification. If an open

wire is indicated in the ribbon cable, the cable should be replaced.

The information on Page 54 pertains to the 20 wire ribbon cable which connects the P.C. board to the display board. A switch was added to each wire of the ribbon cable to demonstrate the results if that switch/wire opened. This information may be useful in diagnosing and repairing some display/control problems on the digital clock/timer.

Figure 58 - Display Board

Figure 59 - Display Board - Rear View
29	RC231002 Rev. 3