TF 407 & TF 410
MA 3 TRANSFORMER KITS
All features & specifications subject to change without notice DOC 103209
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9. Once the transformers are securely mounted, lay the unit down (never leave the unit
standing on its end unattended).
10. See Figure 3. e + (hot) jumper must be cut when a transformer is installed. e
– (gnd) jumper may be cut for a fully isolated secondary or left in for a ground
referenced secondary. ere are two wire jumpers for each Channel:
Ch 1 + (hot) W6 – (gnd) W9
Ch 2 + (hot) W8 – (gnd) W10
Ch 3 + (hot) W13 – (gnd) W14
11. Cut the required jumper(s).
12. Locate the BLK/WHT primary pair. Twist the wires together.
13. Connect the BLK primary wire:
Ch 1: J8 Ch 2: J15 Ch 3: J25
14. Connect the WHT primary wire:
Ch 1: J20 Ch 2: J11 Ch 3: J22
15. Locate the BLK/RED secondary pair. Twist the wires together.
16. Connect the BLK secondary wire:
Ch 1: J10 Ch 2: J14 Ch 3: J21
17. Connect the RED secondary wire:
Ch 1: J9 Ch 2: J16 Ch 3: J17
18. Use the supplied tie raps to “dress” wires along the rear of the chassis and away
from power transformer and circuit board.
19. Place the supplied Label on the outside of MA 3 to indicate the location and type
of transformer installed.
20. Re-install the top cover.
Gently lay capacitors back toward the rear
Ch 1 Ch 2 Ch 3
Figure 3. Jumpers
