Viking VX 900 MHz LTR, User Manual

Page: 141 / 234

SERVICING
8-7
October 1999
Part No. 001-2009-201
8.7 BERYLLIUM PRODUCT WARNING
Q501, Q502, Q503, R504, R505 in the 75W
power amplifier and R685 R701, R702, R703, R716,
R717, R730, Q502, Q701, Q702, Q703, Q704 in the
160W Power Amplifier contain Beryllium (BeO).
Inhalation of dust or fumes may cause serious chronic
lung disease. Refer to the Material Safety Data Sheets
for further details.
8.8 GRAFOIL REPLACEMENT PROCEDURE
When replacing a device that uses Grafoil for the
thermal interface, the Grafoil must be replaced. The
old Grafoil must be completely removed from the
heatsink. To avoid scuffing the heatsink a plastic
scraper (e.g. tuning tool) should be used to remove the
old Grafoil.