
1041896, R
EV
. 00
P
AGE
12 - M600/M605 R
EPAIR
& R
EPLACEMENT
M
ILLENNIUM
S
ERVICE
& T
ECHNICAL
I
NFORMATION
M
AIN
PCB R
EPLACEMENT
To remove the Main PCB
1. Remove the Rear Cabinet. Refer to the Rear Cabinet Replacement Section.
2. Slide the Front Cabinet forward until it is clear from the Base Cabinet.
3. While holding the pressure transducer, remove the thin yellow pressure tubing from the pressure
transducer by carefully pulling the tubing off the fitting.
4. Remove the main power wiring harness connector from the J1 location on the Main PCB assembly
by pulling the connector directly up from the J1 receptacle.
5.
For Model 605 units Only:
Remove the OPI wiring harness connector from the J3 location on the
Main PCB assembly by pulling the connector directly up from the J3 receptacle.
6. Depress the locking tab, then remove the Power Switch wiring harness connector from the J2
location on the Main PCB by pulling the connector directly up from the J2 receptacle.
7. Using a Phillips screwdriver, remove the four screws securing the Main PCB assembly to the Front
Cabinet. While holding the wiring harness out of the way, remove the Main PCB assembly from
the Front Cabinet assembly.
F
IGURE
M: C
ONNECTIONS
AND
M
OUNTING
S
CREW
L
OCATIONS
CAUTION
Electronic components used in this unit are subject to damage from static electricity. Repairs
made to this unit must be performed only in an antistatic, ESD-protected environment.
J3
J2
J1