4.Locate the following leads on Plug J3:
G2803:
LEAD | PLUG |
| LOCATION |
|
|
#202 | 1J3 |
#203 | 3J3 |
#204 A | 2J3 |
|
|
5.Connect main input power to the machine.
6.Turn the
7.Make the following voltage tests at Plug J3.
a.Turn the machine OFF between each test.
b.Carefully insert the meter probes into the back of each Molex Plug pin cavity to perform the test.
G2803:
FROM | TO | EXPECTED |
LEAD | LEAD | VOLTAGE |
|
|
|
#202 | #203 | 30 VAC |
(1J3) | (3J3) |
|
#202 | #204 A | 15 VAC |
(1J3) | (2J3) |
|
#203 | #204 A | 15 VAC |
(3J3) | (2J3) |
|
|
|
|
8.Turn OFF the machine
9.Locate the following leads on Plug J6 on the G2803 Control PC Board. G2803:
LEAD | PLUG |
| LOCATION |
|
|
#206 | 4J6 |
#208 | 16J6 |
#209 | 7J6 |
|
|
10.Turn ON the machine.
11.Make the following voltage tests at Plug J6 on the G2803 Control PC
Board.
a.Turn the machine OFF between each test.
b.Carefully insert the meter probes into the back of each Molex Plug pin cavity to perform the test.
G2803:
FROM | TO | EXPECTED |
LEAD | LEAD | VOLTAGE |
|
|
|
#208 | #209 | 60 VAC |
(16J6) | (7J6) |
|
#208 | #206 | 30 VAC |
(16J6) | (4J6) |
|
#209 | #206 | 30 VAC |
(7J6) | (4J6) |
|
|
|
|
c.If any of the voltages tested are incorrect, check for loose or bro- ken leads between the test points and the main transformer.
d.If ALL the voltages tested are incorrect or missing, go to Step 12.
12.Test for correct nameplate input volt- age between the H1 lead at the ON/OFF POWER SWITCH to H2 or H3 (H5 if connected for 575 VAC) at the reconnect panel. Voltage tested will vary depending on Input Voltage Connection. See wiring diagram for test point locations.
a.If the voltage test is incorrect,
-check for loose or broken leads between the reconnect panel and the ON/OFF POWER SWITCH.
-test the ON/OFF POWER SWITCH for proper operation.
b.If the correct nameplate voltage is being applied to the main transformer and one or more of the secondary voltages are missing or are incorrect, the main transformer may be faulty. Replace.
