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7

Connection

Using a Euroblock connector

1.

If the wire insertion ports are closed, turn the screws
on top of the connector counterclockwise to open the
ports.

2.

Insert the wires into the appropriate ports, following
the indication of the pole on the input terminal, turn
the screws on top of the connector clockwise to fix the
wires.

3.

Attach the Euroblock connector to the input terminal
on the unit.

Speaker Connection

1.

Turn off the POWER switch.

2.

Remove the cover attachment screws and remove the
protective cover from the speaker terminals.

Screw

3.

After removing approx. 15 mm of insulation from the
ends of the speaker cables, pass the bare ends of the
speaker wires through the holes in the corresponding
speaker terminals and tighten the terminals to securely
clamp the wires. Refer to page 6 for speaker porality.

15mm*

*

 Shown actual size.

At this time make sure that the bare ends of the
speaker cables do not extend from the terminals in
such a way that they touch the chassis.

Wire should not 
touch the chassis.

4.

Reattach the protective cover over the speaker
terminals.

+

G

Use a screwdriver 
to fix the wires.

Summary of Contents for XM4220

Page 1: ...POWER AMPLIFIER XM6150 XM4220 Owner s Manual E ...

Page 2: ...low noise cooling fan system ensures high reliability even under the most demanding conditions This Owner s Manual applies to the XM6150 6CH and XM4220 4CH power amplifier In order to take full advantage of your power amplifier and enjoy long and trouble free operation please read this Owner s Manual carefully before using your XM Series Power Amplifier WARNING THIS APPARATUS MUST BE EARTHED IMPOR...

Page 3: ...r for a replacement Using the unit with a damaged power cord is a fire and electrical shock hazard Do not remove the unit s cover You could receive an electrical shock If you think internal inspection mainte nance or repair is necessary contact your dealer Do not modify the unit Doing so is a fire and electrical shock hazard Cautions When rack mounting the unit allow enough free space around the u...

Page 4: ...ates if a DC voltage is detected at the amplifier s outputs Once the DC voltage problem is corrected the protection system deactivates automatically and the amplifier is ready for normal operation If the amplifier overheats If the amplifier overheats the protection system activates In this case you should turn off the ampli fier and allow it time to cool down When it has cooled down the protection...

Page 5: ...ir C D and channel E of pair E F XM6150 only 80 1 3 4 8 7 5 2 6 4 Euroblock connectors These balanced Euroblock connectors are used to connect input signals In Bridge mode only the Euroblock connector of the first channel in the pair is active i e channel A of pair A B channel C of pair C D and channel E of pair E F XM6150 only 5 CH A TO ALL CH switch This switch is used to feed the input signal c...

Page 6: ...e operation Normal mode Bridge mode Speaker min 8Ω Speaker min 4Ω Speaker min 4Ω In Bridge mode you can connect multiple high impedance speakers that are compatible with 70V line output in parallel The number of speakers you can connect is determined by the rated input of each speaker For each channel you can connect speakers as long as the speakers total rated input does not exceed 150W for XM615...

Page 7: ... the cover attachment screws and remove the protective cover from the speaker terminals Screw 3 After removing approx 15 mm of insulation from the ends of the speaker cables pass the bare ends of the speaker wires through the holes in the corresponding speaker terminals and tighten the terminals to securely clamp the wires Refer to page 6 for speaker porality 15mm Shown actual size At this time ma...

Page 8: ... 10 cm or more between the rear panel of the rack and the rear panel of the amplifier Fan Use a fan with 1 5 m3 min or more maximum wind and 5 mmH2 O or more maximum static pressure Mounting Install the fan kit on the top slot or the top panel of the rack and install a blanking panel between two amps Ventilation panel The ventilation panel should be a 1U size and more than 35 of the entire area sh...

Page 9: ...lanced 15 kΩ Unbalanced Controls Front Panel POWER switch ON OFF Rear Panel Volume 31 position ch BRIDGE switch ON OFF 2ch HPFswitch ON OFF ch fc 80 Hz 12 dB oct CH A TO ALL CH switch Connectors Input XLR 3 31 type ch Euroblock connector Output 5 way binding posts Indicators POWER Green PROTECTION Red CLIP Red SIGNAL Green Protection Circuits POWER switch ON muting DC detection Temp detection heat...

Page 10: ...10 Block Diagram Note The block diagram indicated in the dotted frame applies only to model XM6150 ...

Page 11: ...11 Dimensions Unit mm D 319 W 480 H 132 ...

Page 12: ...mpedance of the connected speaker is too low The heat sink temperature has exceeded 90 C A DC voltage of 2 V or greater was detected in the amplifier s output circuit Locate and remove the short Check the ventilation around the amplifier and improve the airflow if necessary Consult your dealer or a Yamaha service center The PC limiter circuit activates to protect the power transistors The thermal ...

Page 13: ...YAMAHA CORPORATION V455890 R0 1 AP 16 Pro Audio Division 18 3 P O Box 3 Hamamatsu 430 8651 Japan NP Printed in Taiwan ...

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