Rane TF 410, TF 407 User Manual

INSTALLATION MANUAL

Gently lay capacitors back toward the rear

Ch 1 Ch 2 Ch 3

360 WATTS

120V

50/60 Hz

N108

OUTPUT POWER

PER CHANNEL

40 WATTS / 8 OHMS

60 WATTS / 4 OHMS

MAY USE CLASS 2 WIRING

LEVEL

+

-

+

-

++++

----

+++

---

+

-

+

-

+

-

NORMAL

FAST

100

LEVELLEVEL

100100

FOR

CONTINUED

GROUNDING

PROTECTION

DO NOT

REMOVE SCREW

MA 3

MADE IN U.S.A.

RANE CORP.

AVIS

RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRICAL

SHOCK DO NOT EXPOSE THIS EQUIPMENT TO

RAIN OR MOISTURE. DO NOT REMOVE COVER.

NO USER SERVICEABLE PARTS INSIDE. REFER

SERVICING TO QUALIFIED PERSONNEL.

CH 3 CH 2 CH 1

OUTPUTS INPUTS

CHANNEL

1CHANNEL 2CHANNEL 3 FAN SPEED

3

2

1

Description

Up to three optional 70.7 V or 100 V constant-voltage distribution transformers may be

mounted inside the MA 3 with no external wiring or mounting required.

TF 407 & TF 410

MA 3 TRANSFORMER KITS

• e TF 407 is a 40W, 70.7 V transformer with 0.5 dB insertion loss at rated power and a frequen

-

cy response of 50 Hz to 15 kHz, ±1 dB.

• e TF 410 is a 40W, 100 V transformer with 0.5 dB insertion loss at rated power and a frequen

-

cy response of 50 Hz to 15 kHz, ±1 dB.

Installation WARNING — Only authorized service personell should perform this upgrade.

1. Unplug the MA 3 amplifier!

2. Remove the top cover (12 screws).

3. Capacitors C63, C61, C62 and C65 need to be laid toward the rear of the unit (Figure 1). Don’t

press on parts, just gently lay them over.

4. Stand the MA 3 up on one end with the power transformer toward the bench (Figure 2).

5. Locate the transformer mounting holes along the rear panel of the MA 3 (Figure 2).

6. Place one of the two supplied #8 screws in the “top” mounting hole of the pair of holes associated
with the channel receiving the transformer (Figure 2).
e “bottom” two holes are for Channel 3.
e “center” two holes are for Channel 2.
e “top” two holes are for Channel 1.

7. With the transformer primary (WHT & BLK) wires facing the PCB, “hang” the transformer on
the #8 screw and nylock nut. Hold the screw and transformer in place with one hand. Use your
other hand to rotate the supplied #8 nut onto the threads. Use a nut driver and #2 Phillips driver
to snug the hardware. Install the second #8 screw and nylock nut. Make sure hardware is tight.

8. Repeat for additional Channels if more than one transformer is required. When installing more
than one, start at the bottom (Channel 3).

Figure 1. Capacitor clearance

Figure 2. Transformer mounting

holes for each channel.

TF 407 & TF 410

Ch 1 Ch 2 Ch 3

MA 3 TRANSFORMER KITS

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.

Figure 3. Jumpers

©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL [phone] FAX [phone] WEB w ww.rane.com

All features & specifications subject to change without notice DOC 103209