Jensen specifications PS475 Troubleshooting, Specifications, Month Limited Warranty

PS475

Troubleshooting

Problem	Possible Cause	Corrective Action
Amplifier does	No power to +12V terminal	Check fuse(s)
not turn on
	No power to REM terminal	Check head unit fuse(s) and wiring
	Blown main fuse at battery	Replace fuse and identify cause of failure
	Blown fuse at amplifier	Replace fuse and identify cause of failure
	Faulty ground	Reground main power ground to bare metal
		chassis
Volume control	Input level control adjusted too	Readjust the input level (refer to page 9)
too sensitive	high
Distorted sound	Input level control adjusted too	Readjust the input level (refer to page 9)
	high
Blows fuse(s) at	Power wires connected back-	Reconnect power wires properly
amp	wards
	Internal problem with amp	Take unit for service
Engine noise /	Ground loop(s)	Use good quality shielded RCA cables
Alternator whine
	Faulty ground at amp	Reground amp to clean bare metal chassis
	Faulty ground at head unit	Reground head unit to clean bare metal chas-
		sis
	Inductive coupling	Reroute RCA and/or speaker wires away from
		factory harnesses
	Input level on amp set too high	Readjust input level (refer to page 9)
Thermal protec-	Amplifier driving 2 ohm load or	If the amplifier “thermals” frequently while driv-
tion activated	bridged mono for long dura-	ing subwoofers, a fan may need to be
	tions	installed to keep amp cool
Short circuit pro-	Blown speakers	Check all speakers
tection activated
	Speaker wire(s) shorting to	Check for faulty wiring
	ground
	Defective crossover	Faulty passive crossover
Low impedance	Amp connected to improper	Check speaker connections
protection acti-	load
vated
	Amp will not drive a 2 ohm	Verify that speakers are connected properly
	mono load, 4 ohm minimum in
	mono configuration
	Speakers defective/blown	Check speakers
	Faulty passive crossovers	Check crossovers
Poor bass	Speakers out of phase	Check speaker polarity; reverse the connec-
response		tion to one speaker only

Note: If the protection light is activated with no speakers connected to the amplifier, and all the power connections are correct, this would indicate an internal problem with the amplifier.

Specifications

Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Hz to 50kHz, - 3dB Signal to Noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >110dB @ rated power (A-Weighted) Channel separation @ reference power (1 watt/4-ohm load) . . . . . . . . . . . . . . . . . . . . >60dB @ 1kHz Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47k ohm Speaker impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 to 4 ohms Bass boost center frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Hz Bass boost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +18dB Crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuously adjustable from 40Hz to 400Hz

Type: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . State Variable

Slope: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12dB/octave, Butterworth Power requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4VDC (10.8 - 15.6VDC allowable) Current requirement: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 amp (2X25 amp)

RMS power output @ 14.4VDC, 20Hz - 20kHz

4-channel 4-ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 watts @ < 0.5% THD+N 4-channel 2-ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 watts @ < 1.0% THD+N Bridged Stereo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 watts @ <1.0% THD+N Dimensions/mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333x302x55.5

Specifications subject to change without notice.

12-Month Limited Warranty

AUDIOVOX CORPORATION (the Company) warrants to the original retail purchaser of this product that should this product or any part thereof, under normal use and conditions, be proven defective in material or workmanship within 12 months from the date of original purchase, such defect(s) will be repaired or replaced with new or reconditioned product (at the Company's option) without charge for parts and repair labor. To obtain repair or replacement within the terms of this Warranty, the product is to be delivered with proof of warranty coverage (e.g. dated bill of sale), specification of defect(s), transportation prepaid, to the warranty center at the address shown below.

This Warranty does not extend to the elimination of car static or motor noise, to correction of antenna problems, to costs incurred for installation, removal, or reinstallation of the product, or damage to tapes, compact discs, accessories, or vehicle electrical systems. This Warranty does not apply to any product or part thereof which, in the opinion of the Company, has suffered or been damaged through alteration, improper installation, mishandling, misuse, neglect, accident, or by removal or defacement of the factory serial number/bar code label(s) or markings. THE EXTENT OF THE COMPANY'S LIABILITY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT PROVIDED ABOVE AND, IN NO EVENT, SHALL THE COMPANY'S LIABILITY EXCEED THE PURCHASE PRICE PAID BY PURCHASER FOR THE PRODUCT.

This Warranty is in lieu of all other express warranties or liabilities. ANY IMPLIED WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, SHALL BE LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. ANY ACTION FOR BREACH OF ANY WARRANTY HEREUNDER INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 30 MONTHS FROM DATE OF ORIGINAL PURCHASE. IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, WHATSOEVER. No person or representative is authorized to assume for the Company any liability other than expressed herein in connection with the sale of this product.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damage so the above limitations or exclusions may not apply to you. This Warranty gives you specific legal rights and you may also have other rights which vary from state to state.

U.S.A: Audiovox Corporation, 150 Marcus Blvd., Hauppauge, NY 11788, 1-800-323-4815

CANADA: Call 1-800-323-4815 for location of warranty station serving your area.

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