Yamaha PortaTone Owner's Manual page 27

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC require-
ments. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use
the product.
2. IMPORTANT:
shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure
to follow instructions could void your FCC authorization to use this product in the USA.
3. NOTE:
This product has been tested and found to comply with the requirements listed in FCC Regulations, Part
15 for Class "B" digital devices. Compliance with these requirements provides a reasonable level of assurance
that your use of this product in a residential environment will not result in harmful interference with other elec-
tronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to
the instructions found in the users manual, may cause interference harmful to the operation of other elec-
tronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all
installations. If this product is found to be the source of interference, which can be determined by turning the
unit "OFF" and "ON", please try to eliminate the problem by using one of the following measures:
Relocate either this product or the device that is being affected by the interference.
Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon
lead, change the lead-in to co-axial type cable.
If these corrective measures do not produce satisfactory results, please contact the local retailer authorized
to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corpo-
ration of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena Park, CA 90620
The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its
subsidiaries.
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FCC INFORMATION (U.S.A.)
When connecting this product to accessories and/or another product use only high quality