Motor Controller (Mc) Pcba - Philips Respironics V60 Service Manual

7.8 Motor Controller
(MC) PCBA
M3 x 12 screw (x2)
PCBA
(62 + 5.7 N cm/
bracket (x2)
5.5 + 0.5 in.-lbf)
Wing nut (x2)
#6 washer (x2)
Fan
(under bracket,
cable
not shown)
1049766 Rev A
Follow these steps to remove the MC PCBA (Figure 7-8). Reverse to install.
1. Remove top cover (section 7.4).
2. Remove the screws and wing nuts that attach the MC PCBA to the
PCBA brackets.
3. Loosen the captive screws that attach the capacitor bracket to the
base.
4. Disconnect cables:
• Blower cable
• Fan cable
• DA-MC ribbon cable
5. Gently pull MC PCBA up from its connection on the CPU PCBA, then
disconnect speaker #1 cable.
6. Remove PCBA brackets.
NOTE: To avoid bending connector pins, reinstall the MC PCBA, and then the
PCBA brackets. Verify that the MC PCBA does not protrude above the
brackets.
DA-MC
ribbon cable
Blower cable
Capacitor
M4 x 8screw (x4)
bracket
(113 + 11.3 N cm/
10 + 1 in.-lbf)
V60 Ventilator Service Manual
Component Removal/Installation
MC PCBA
Speaker #1
cable
Figure 7-8: Removing the MC PCBA
Chapter 7
7-9