![Thermo Finnigan LCQ Deca XP Plus Скачать руководство пользователя страница 155](http://html.mh-extra.com/html/thermo-finnigan/lcq-deca-xp-plus/lcq-deca-xp-plus_hardware-manual_1104316155.webp)
Service Maintenance
______________________________________ Replacing PCBs and Assemblies in the Tower
__________________ LCQ Deca XP Plus Hardware Manual _________________
5-49
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.
•
To replace the electron multiplier power supply and the conversion
dynode power supply, go to step 3.
•
To replace the Analyzer PCB, go to step 4.
•
To replace the Analyzer Auxiliary PCB, go to step 5.
•
To replace the Waveform Amplifier PCB, go to step 6.
•
To replace the RF Voltage Amplifier PCB, go to step 7.
3. To replace the electron multiplier power supply and/or the conversion
dynode power supply, proceed as follows. See Figure 5-15 on
page 5-47 for the location of the electron multiplier and conversion
dynode power supplies.
a.
Disconnect the conversion dynode high voltage cable at the
conversion dynode feedthrough by pulling it free from the
feedthrough.
b. Disconnect the electron multiplier high voltage cable at the electron
multiplier power supply.
c.
Disconnect from the top of the electron multiplier and conversion
dynode power supplies the electrical cable that comes from the
System Control PCB.
d. Loosen by hand or with a Phillips screwdriver the two fasteners that
hold the electron multiplier and conversion dynode power supply
module to the MS detector chassis.
e.
Carefully lift the electron multiplier and conversion dynode power
supply module up and away from the MS detector.
f.
You must replace the conversion dynode power supply
and the electron multiplier power supply together as a module
(P/N 97000-98042). Retain the packing materials so that you can
pack and ship the defective power supply module or PCB to the
Thermo Finnigan Repair Center in San Jose. Be sure to note the
apparent problem or symptoms on the enclosed forms.
g. Install the electron multiplier and conversion dynode power supply
module in the space occupied by the old power supply module.
h. With a Phillips screwdriver, tighten the two fasteners that hold the
electron multiplier and conversion dynode power supply module to
the MS detector chassis.
i.
Reconnect to the electron multiplier and conversion dynode power
supplies the electrical cable that comes from the System Control
PCB.
Содержание LCQ Deca XP Plus
Страница 1: ...LCQ Deca XP Plus Hardware Manual Revision A 97344 97003 TM ...
Страница 46: ......
Страница 56: ......
Страница 70: ......
Страница 114: ...INSERT Figure5_2 ps 11 X 17 Z fold Figure 5 2 Mass analyzer and ion optics ...
Страница 172: ......
Страница 194: ......
Страница 216: ......