![Thermo Finnigan LCQ Deca XP Plus Hardware Manual Download Page 164](http://html.mh-extra.com/html/thermo-finnigan/lcq-deca-xp-plus/lcq-deca-xp-plus_hardware-manual_1104316164.webp)
Service Maintenance
Replacing the RF Voltage Control PCB ___________________________________________
5-58
___________________ LCQ Deca XP Plus Hardware Manual ________________
2. Remove the top cover of the MS detector as described in the topic
Removing the Top Cover of the MS Detector on page 5-6.
3. Remove the left side cover of the MS detector, as follows:
a.
Loosen the fastener that secures the left side cover to the chassis of
the MS detector.
b. Slide the side cover back about 1.25 cm (0.5 in.), and then pull it out
and away from the MS detector.
4. With a Phillips screwdriver, remove the nine screws that secure the front
cover of the RF Voltage Control PCB. Remove the front cover to expose
the RF Voltage Control PCB.
5. Disconnect the cable that comes from the RF Voltage Amplifier PCB.
6. Disconnect the cable that comes from the System Control PCB.
7. With a Phillips screwdriver, remove the screws that hold the RF Voltage
Control PCB housing to the vacuum manifold. Remove the RF Voltage
Control PCB and its housing as a unit. Reinstall the cover plate on the
housing.
8. Unpack the new RF Voltage Control PCB and housing
(P/N 96000-61100). Retain the packing materials so that you can pack
and ship the defective PCB and housing to the Thermo Finnigan Repair
Center in San Jose. Be sure to note the apparent problem or
symptoms on the enclosed forms.
9. Position the new RF Voltage Control PCB and its housing against the
vacuum manifold where the old assembly was located. With a Phillips
screwdriver, reinstall the 21 screws that hold the RF Voltage Control PCB
housing to the vacuum manifold.
10. With a Phillips screwdriver, remove the nine screws that hold the front
cover of the RF Voltage Control PCB housing to the RF Voltage Control
PCB housing. Remove the front cover to expose the RF Voltage Control
PCB.
11. Reconnect the cable that comes from the System Control PCB.
CAUTION. Make sure that the XP Plus electronic service switch is in the
Service Position (or shut down or shut down the system and disconnect the
power cord) before you proceed.
Caution. To prevent damage to the electronics due to electrostatic
discharge, attach an electrostatic discharge (ESD) strap to your wrist before
continuing.
Summary of Contents for LCQ Deca XP Plus
Page 1: ...LCQ Deca XP Plus Hardware Manual Revision A 97344 97003 TM ...
Page 46: ......
Page 56: ......
Page 70: ......
Page 114: ...INSERT Figure5_2 ps 11 X 17 Z fold Figure 5 2 Mass analyzer and ion optics ...
Page 172: ......
Page 194: ......
Page 216: ......