Product

• Trendsetter NEWS
• Trendsetter 400/800 (TS8)

Component

Drum brake control board #10-4795A-B

Symptoms

Drum Amp Displays Code 5

Cause

Bad batch of drum brake control boards (#10-4795A-B).

Solution

To check for a faulty drum brake board:

1. Turn off the machine.
2. Remove the cables that are connected to J1 and J3 on the drum brake board (10-4795A-B:)
3. Verify that the LED (DS1) on the drum brake board is off.
4. Use the multimeter to measure the resistance (Ohms range) between the following connections:
   • pin2 of J1 and pin3 of J1
   • pin3 of J1 and pin4 of J1
   • pin2 of J1 and pin4 of J1
   Resistance should be approximately 5.0 +/-0.5 Ohms.
5. Turn on the machine while cables to J1 and J3 are still disconnected.
6. Verify that the LED (DS1) on the drum brake board is on.
7. Use the multimeter to measure the resistance (Ohms range) between the following connections:
• pin2 of J1 and pin2 of J3
• pin3 of J1 and pin3 of J3
• pin4 of J1 and pin4 of J3
Resistance should be approximately 0.0 +/-0.5 Ohms.
8. If the readings in steps 4 and 7 are within recommended range, the board is good. Go to step 9.
   
   If the readings in steps 4 and 7 are not within recommended range, the board is faulty. Order a replacement board and use the procedure in Drum does not move to bypass the board until a new board is installed.
9. Turn off the machine.
10. Reconnect the cables that you removed in step 2.

Technical contact(s)

Steve Froese

Submitted by

Steve Froese

Date submitted

04 Jul 2002