Tait T850 II Series, Service Manual

Page: 368 / 370

I3.2 T858/859 SII - SI Conversion
M850-00
31/09/98 Copyright TEL
3.2 Method
Step Action
1 Remove the Series II front panel from the PA as follows:
• remove the four screws using a Torx screwdriver;
• push the LEDs from the front of the panel to remove them from
their grommets.
2 Remove the side cover.
3 Remove the rear panel BNC connector:
• unplug the RF input coax from the socket on the PCB;
• unscrew the BNC connector from the chassis;
• carefully withdraw the coax from the PA through the hole in
the rear of the chassis (cutting cable ties as required);
• fit the blanking plate over the hole in the chassis from which
the BNC connector has been removed;
• replace any cable ties previously cut and ensure the wiring is
secured under the restraints provided.
Fit the front panel SMC connector:
• insert the coax fitted with the brass SMC connector through the
hole in the front of the chassis and secure with the brass nut
and washer;
• connect the coax from the SMC connector into SK1, feeding it
over RV63 and under the LED legs and cable restraint, as
shown in Figure 3.1.
4 Refit the side cover.
5 Fit all parts of the Series I front panel, following Step 1 in reverse order.
Note: If you have difficulty refitting the LEDs, try pushing the
body of the LED back into the grommet with a thin screw-
driver or spike. Be very careful while doing this as the legs
of the LED are very easy to break.