Yamaha YAS-203 Owner's Manual

To prevent electric shock, match wide blade of plug to 
wide slot and fully insert. 
CAN ICES-3 (B)/NMB-3 (B)

1

Read these instructions.

2

Keep these instructions.

3

Heed all warnings.

4

Follow all instructions.

5

Do not use this apparatus near water.

6

Clean only with dry cloth.

7

Do not block any ventilation openings. Install in 

accordance with the manufacturer’s instructions.

8

Do not install near any heat sources such as 

radiators, heat registers, stoves, or other apparatus 

(including amplifiers) that produce heat.

9

Do not defeat the safety purpose of the polarized or 

grounding-type plug. A polarized plug has two 

blades with one wider than the other. A grounding 

type plug has two blades and a third grounding 

prong. The wide blade or the third prong are 

provided for your safety. If the provided plug does 

not fit into your outlet, consult an electrician for 

replacement of the obsolete outlet.

10 Protect the power cord from being walked on or 

pinched particularly at plugs, convenience 

receptacles, and the point where they exit from the 

apparatus.

11 Only use attachments/

accessories specified by the 

manufacturer.

12 Use only with the cart, stand, 

tripod, bracket, or table 

specified by the manufacturer, 

or sold with the apparatus. 

When a cart is used, use 

caution when moving the cart/

apparatus combination to avoid injury from tip-over. 

13 Unplug this apparatus during lightning storms or 

when unused for long periods of time.

14 Refer all servicing to qualified service personnel. 

Servicing is required when the apparatus has been 

damaged in any way, such as power-supply cord or 

plug is damaged, liquid has been spilled or objects 

have fallen into the apparatus, the apparatus has 

been exposed to rain or moisture, does not operate 

normally, or has been dropped.

Yamaha and the Electronic Industries 
Association’s Consumer Electronics 
Group want you to get the most out of 
your equipment by playing it at a safe 
level. One that lets the sound come 
through loud and clear without 
annoying blaring or distortion – and, 
most importantly, without affecting 

your sensitive hearing. Since hearing damage from loud 
sounds is often undetectable until it is too late, Yamaha 
and the Electronic Industries Association’s Consumer 
Electronics Group recommend you to avoid prolonged 
exposure from excessive volume levels.

CAUTION: TO REDUCE THE RISK OF 

ELECTRIC SHOCK, DO NOT REMOVE 

COVER (OR BACK). NO USER-

SERVICEABLE PARTS INSIDE. REFER 

SERVICING TO QUALIFIED SERVICE 

PERSONNEL.

The lightning flash with 
arrowhead symbol, within an 
equilateral triangle, is intended to 
alert you to the presence of 
uninsulated “dangerous voltage” 
within the product’s enclosure that 
may be of sufficient magnitude to 
constitute a risk of electric shock 
to persons.

The exclamation point within an 
equilateral triangle is intended to 
alert you to the presence of 
important operating and 
maintenance (servicing) 
instructions in the literature 
accompanying the appliance.

Please record the serial number of this unit in the 
space below.
MODEL: 
Serial No.: 
The serial number is located on the rear of the unit. 
Retain this Owner’s Manual in a safe place for future 
reference.

CAUTION

RISK OF 

ELECTRIC 

SHOCK DO 

NOT OPEN

• This device complies with Part 15 of the FCC Rules and RSSGen of IC Rules.
• Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and 2) this 

device must accept any interference received including interference that may cause undesired operation.

See the “Troubleshooting” section at the end of this manual if interference to radio reception is suspected.

Change or modifications not expressly approved by the party responsible for compliance could void the user’s authority 

to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC 

Rules. These limits are designed to provide reasonable protection against harmful interference in aresidential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with 

the instructions, may cause harmful interference to radio communications. However, there is no guarantee that 

interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or 

television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to 

correct the interference by one or more of the following measures:
− Reorient or relocate the receiving antenna.
− Increase the separation between the equipment and receiver.
− Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
− Consult the dealer or an experienced radio/TV technician for help.

This equipment compiles with FCC/IC radiation exposure limits set forth for uncontrolled equipment and meets the FCC 

radio frequency (RF) Exposure Guidelines and RSS-102 of the IC radio frequency (RF) Exposure rules. This equipment 

has very low levels of RF energy that it deemed to comply without maximum permissive exposure evaluation (MPE). 

But it is desirable that it should be installed and operated with at least 20 cm and more between the radiator and person’s 

body.

This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter.

1

IMPORTANT NOTICE: DO NOT MODIFY 
THIS UNIT!: This product, when installed as 

indicated in the instructions contained in this 

manual, meets FCC requirements. Modifications not 

expressly approved by Yamaha may void your 

authority, granted by the FCC, to use the product.

2

IMPORTANT: When connecting this product to 

accessories and/or another product use only high 

quality 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 electronic 

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 

electronic devices.

4

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:

5

Relocate either this product or the device that is 

being affected by the interference.

6

Utilize power outlets that are on different branch 

(circuit breaker or fuse) circuits or install AC line 

filter/s.

7

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 coaxial type 

cable.

8

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 Corporation of America A/V Division 6600 

Orangethorpe Ave., Buena Park, CA 90620.

9

The above statements apply ONLY to those 

products distributed by Yamaha Corporation of 

America or its subsidiaries.