26
3.8.2
Electronic Bias PCB Installation
The Electronic Bias PCB will be installed in the area formerly occupied by the Zener diode
and heatsink, and will mount directly to the filament transformer. Refer to Figure 3.22.
Figure 3.22: PCB Installation Preparation
•
Place a flat washer on each of the two threaded posts nearest to the filament trans-
former.
•
Place the rubber grommet as shown (it will be compressed and held in-place by the
Electronic Bias PCB).
•
Orient the Electronic Bias PCB and lower onto the filament transformer mounting
bolts.
•
Place a flat washer and #8 metric nut on the two mounting bolts and tighten.
•
Plug in the LED PCB, Step-Start PCB, and the QSK Relay PCB (attached to 10-pin
connector).
When finished, the amplifier should appear as shown in Figure 3.23. The connections to the
10-pin plug will be described next.
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Summary of Contents for TL-922 Revival (tm)
Page 13: ...6 Figure 3 1 TL 922 Revival tm Upgrade Kit Contents www KesslerEngineeringLLC com...
Page 18: ...11 Figure 3 4 LED Circuit Board Correctly Installed www KesslerEngineeringLLC com...
Page 30: ...23 Figure 3 19 QSK PCB to QRO Output Connections www KesslerEngineeringLLC com...
Page 34: ...27 Figure 3 23 Electronic Bias PCB Installed www KesslerEngineeringLLC com...
Page 47: ...40 Figure 3 30 Step Start PCB www KesslerEngineeringLLC com...
Page 49: ...42 Figure 3 33 LED Schematic Diagram Figure 3 34 LED PCB www KesslerEngineeringLLC com...
Page 50: ...43 Figure 3 35 Electronic Bias Schematic Diagram www KesslerEngineeringLLC com...
Page 51: ...44 Figure 3 36 Electronic Bias PCB www KesslerEngineeringLLC com...
Page 54: ...47 User Notes www KesslerEngineeringLLC com...
Page 55: ...48 5 1 User Notes Continued www KesslerEngineeringLLC com...
Page 56: ...49 5 2 User Notes Continued www KesslerEngineeringLLC com...
Page 57: ...50 5 3 User Notes Continued www KesslerEngineeringLLC com...
