ACP Menumaster DEC21E2, Service Manual

Page: 31 / 48

29
Component Testing Procedures
! WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
Illustration Component Test Results
Control board
P
2
1
10
P1
1
1
0
P1 connector used
for touch panel
ribbon
Illustration Component Test Results
CONTROL
BOARD
J2
J1
J4
E1 E2 E3 E4
Pin #1
P1
Control board
P1
1
10
P1 connector used
for touch panel
ribbon
Line voltage to control board
E1 (RD) —L2 (BU) ...................................
Output drive voltage to triac
Triac terminals.............................................
Gate (BR) —T1 (BK) .................................
230 VAC line voltage
Fan relay (controls blower motor, antenna
motor(s), and oven light)
Control board...............................................
Terminals L2 (BU) —J2-7 (OR).................
Control board...............................................
Terminals E1 (RD) —E4 (PK) ...................
Line voltage (All Conditions)
0 VAC (Idle and Standby)
0.9 VAC (Cook)
Line voltage (Idle)
0 VAC (Standby and Cook)
Line voltage (Idle)
0 volts (Standby and Cook)
Invensy Control Board
CPI Control Board
Pin #1
Pin #1
P1
P2
A
B
C
J
F
K
Line voltage to control board
P2 connector
Pin 1—Pin 3..............................................
Output drive voltage to triac
Triac terminals............................................
Gate—T1 ..................................................
Fan relay (controls blower motor, antenna
motor(s), and oven light)
Control board ..............................................
Terminals C—J.........................................
Cook relay
Control board ..............................................
Terminals F—K.........................................
Line voltage (All Conditions).
0 VAC (Idle and Standby).
0.9 VAC (Cook).
Line voltage (Idle).
0 VAC (Standby and Cook).
Line voltage (Idle).
0 volts (Standby and Cook).