VOLTAGE AT PCB

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to DC Volts

Gain access to PCB (use Insulation Mat as required)

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure

Mains Power On

Measurement:

Test 1: (5 vdc)
Approximately 5V DC expected at the two exposed
test points above the white connector ST17.
Note:
There are different PCB versions, choose correct test
from below.

Test 2: (24 vdc)
Approximately 24V DC expected at the two exposed
test points to the left of the white connector ST17.
Note:
There are different PCB versions, choose correct test from below.

Measure voltages on the right hand side of the PCB at the exposed test points as shown.

TEST 1

TEST 2