9
3.5
LED Board Installation
Synopsis
The amplifier’s incandescent lamps will be removed and replaced with a PCB containing six
LEDs which provide meter illumination as well as “Standby” and “On-Air” status indica-
tions.
Installation
The stock lamps are held in-place by rubber grommets and electrically connected to a ter-
minal strip as shown in Figure 3.2.
Figure 3.2: Stock Lamps Prior to Removal
•
Remove and discard the meter lamps by sliding them upward. Cut or desolder the
lamp wires from the grounding post.
•
Remove and discard the “Standby” and “On-Air” lamps, sliding them sideways (as
necessary).
•
Remove (but retain) the two screws holding the terminal strip.
Note:
We suggest using
a right-angle drive screwdriver.
•
Cut (as necessary) any wire connected to the terminal strip.
•
Remove and discard the terminal strip and lamps.
When finished, the lamp area should appear as shown in Figure 3.3.
•
Orient the LED PCB, aligning the PCB mounting holes over the mounting brackets
used to hold the terminal strip. It may be necessary to shorten the grounding post.
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Содержание TL-922 Revival (tm)
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Страница 13: ...6 Figure 3 1 TL 922 Revival tm Upgrade Kit Contents www KesslerEngineeringLLC com...
Страница 18: ...11 Figure 3 4 LED Circuit Board Correctly Installed www KesslerEngineeringLLC com...
Страница 30: ...23 Figure 3 19 QSK PCB to QRO Output Connections www KesslerEngineeringLLC com...
Страница 34: ...27 Figure 3 23 Electronic Bias PCB Installed www KesslerEngineeringLLC com...
Страница 46: ...39 3 8 7 Electrical Schematics Figure 3 29 Step Start Schematic Diagram www KesslerEngineeringLLC com...
Страница 47: ...40 Figure 3 30 Step Start PCB www KesslerEngineeringLLC com...
Страница 48: ...41 Figure 3 31 QSK T R Relay Schematic Diagram Figure 3 32 QSK T R Relay PCB www KesslerEngineeringLLC com...
Страница 49: ...42 Figure 3 33 LED Schematic Diagram Figure 3 34 LED PCB www KesslerEngineeringLLC com...
Страница 50: ...43 Figure 3 35 Electronic Bias Schematic Diagram www KesslerEngineeringLLC com...
Страница 51: ...44 Figure 3 36 Electronic Bias PCB www KesslerEngineeringLLC com...
Страница 54: ...47 User Notes www KesslerEngineeringLLC com...
Страница 55: ...48 5 1 User Notes Continued www KesslerEngineeringLLC com...
Страница 56: ...49 5 2 User Notes Continued www KesslerEngineeringLLC com...
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