Sherwood R-807 Troubleshooting Guide download pdf (Page 6)

ENGLISH

4. CONNECTING SPEAKERS

• You can connect up to four pairs of speakers to this receiver

and select the various combinations of speakers according to

your tastes.

• The speakers C and D can be installed in the main room as

the speakers A and B can or in the another room (ROOM2)

for ROOM2 playback. (For details, refer to "ROOM2

PLAYBACK" on page 24.)

• Be sure to connect speakers firmly and correctly according to

the channel (left and right) and the polarity (+ and -).

• If the connections are faulty, no sound will be heard from the

speakers, and if the polarity of the speaker connection is

incorrect, the sound will be unnatural and lack bass.

■Notes :

• For safe amplifier operation, use the speakers with

impedance of over 8Ω when you connect a pair terminals of

SPEAKER A and B terminals or/and a pair terminals of

SPEAKER C and D terminals and use the speakers with

impedance of over 16Ω when you connect both SPEAKER A

and B terminals or/and both SPEAKER C and D terminals.

• Do not let the bare speaker wires touch each other or any

metal part of this receiver. This could damage this receiver

and/or the speakers.

Speaker A

(Main room)

Speaker C

(Main room/ROOM2)

Speaker B

(Main room)

Speaker D

(Main room/ROOM2)

Right Left Right Left

Right Left

5. CONNECTING PC FOR UPGRADES

• This receiver incorporates RS-232C terminal that may be

used in the future to update the operating software so that it

will be able to support new digital audio formats, external

control by using an external device and the like.

■Notes:

• Programming for upgrades and external control requires

specialized programming knowledge and for that reason we

recommend that it only be done by qualified installers. For

more information on future upgrades and external control,

visit the Sherwood web site at www.sherwoodamerica.com or

contact your dealer.

• Do not disconnect the connection cable while updating the

operating software, etc.

Should this happen, it may be result in malfunction or cause

damage to the unit.

PC with RS-232C port

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Sherwood R-807 Troubleshooting Guide Page 6

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