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Important Safety Instructions 

The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence 
of “dangerous voltage” inside the product that may constitute a risk of electric shock. 
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating 
and maintenance instructions in the literature accompanying the product. 

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS 
INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL 

1. 

Read Instructions

 — Read all the safety and operating instructions before operating this product. 

2. 

Retain Instructions

 — Retain safety and operating instructions for future reference. 

3. 

Heed Warnings

 — Adhere to all warnings on the product and in the operating instructions. 

4. 

Follow Instructions

 — Follow all operating and use instructions. 

5. 

Cleaning

 — Unplug this product from the wall outlet before cleaning. Use a damp cloth for cleaning. Clean the 

outside of the product only. 
6. 

Attachments

 — Do not use attachments that are not recommended by the product manufacturer; they may be 

hazardous. 
7. 

Water and Moisture

 — Do not use this product near water. 

8. 

Accessories

 — Do not place this product on an unstable cart or stand. The product may fall, causing bodily injury 

and damage to the product. A product and cart combination should be moved with care. Quick stops, excessive force, 
and uneven surfaces may cause the product and cart to overturn. 
9. 

Ventilation

 — Slots and openings in the cabinet are provided for ventilation to ensure reliable operation of the 

product and to protect it from overheating. These openings must not be blocked or covered. This product should not be 
placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided. 
10. 

Power Sources

 — Operate this product only from the type of power source indicated on the label. If you are not 

sure of the type of power supply to your home, consult your dealer or local power company. This product is equipped 
with a three-prong grounding plug. This plug will only fit into a grounding power outlet. If you are unable to insert the plug 
into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding 
plug. 
11. 

Power Cord Protection

 — Power supply cords should be routed so that they are not likely to be walked on or 

pinched by items placed upon or against them. 
12. 

Lightning

 — Unplug the unit from the wall outlet for added protection during a lightning storm and when it is left 

unattended and unused for long periods of time. This will prevent damage to the product due to lightning and power line 
surges. 
13. 

Overloading

 — Do not overload wall outlets or extension cords. This can result in a fire or electric shock. 

14. 

Inserting Objects into Unit

 — Never push objects of any kind into this product through any openings; they may 

touch dangerous voltage points or short out parts that could result in fire or electric shock. 
15. 

Servicing

 — Do not attempt to repair or service this product yourself. Opening or removing covers may expose you 

to dangerous voltage and other hazards. Refer all servicing to qualified service personnel. 
16. 

Damage Requiring Service

 — Unplug this product from the wall outlet and refer servicing to qualified  

service personnel under the following conditions: 

a)

 If the power-supply cord or plug is damaged.  

b)

 If liquid has been spilled into the product. 

c)

 If the product has been exposed to rain or water. 

d)

 If the product does 

not operate normally by following the operating instructions. 

e)

 If the product has been dropped or damaged in any way. 

f)

 If the product exhibits a distinct change in performance. 

17. 

Replacement Parts

 — When replacement parts are required, be sure the service technician has used 

replacement parts specified by the manufacturer. Unauthorized substitutions may result in fire, electric shock, and other 
hazards. 
18. 

Safety Check

 — Upon completion of any service or repairs to this product, ask the service technician to perform 

safety checks to determine that the product is in proper operating condition. 
19. 

Wall or Ceiling Mounting

 — Mount the product to a wall or ceiling only as recommended. 

20. 

Heat

 — The product should be situated away from heat sources such as radiators, heat registers, stoves, and 

other products (including amplifiers) that produce heat. 

 

Содержание JC 3 Jr.

Страница 1: ...JC 3 Jr Phono Preamplifier OWNER S GUIDE...

Страница 2: ...2...

Страница 3: ...This plug will only fit into a grounding power outlet If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of...

Страница 4: ...Voltage Selection 6 Audio Input Connections 7 Cartridge Impedance Selection 8 Gain Control 8 Audio Output Connections 9 12V trigger and Other Connections 9 Front Panel Operation 10 Frequently Asked Qu...

Страница 5: ...r Parasound warranty service We recommend that you make an extra copy of your original purchase receipt bill of sale and store it inside the JC 3 Jr s carton Five Digit Serial Number located on the bo...

Страница 6: ...output cables that are long enough to leave some slack that will enable you to pull the JC 3 Jr out of a cabinet to check or to change connections without inadvertently disconnecting cables If you re...

Страница 7: ...230V markings on the carton The 115V setting is correct for North America where the JC 3 Jr can operate safely with AC line voltages between 110V 120V Most other countries will require the switch to b...

Страница 8: ...s located next to the right channel XLR balanced output Note In some cases eliminating hum might require connecting your turntable ground wire directly to your line stage preamp instead of to the JC 3...

Страница 9: ...e Control 50 550 The JC 3 Jr s Impedance adjust knob enables you to fine tune the input impedance for MC cartridges over a range of 50 ohms to 550 ohms Cartridge manufacturers recommend what they cons...

Страница 10: ...r preamplifier The 12V input is a 3 5mm 1 8 mono mini jack To trigger the JC 3 Jr on and off automatically insert the trigger wire plug into this jack and plug the other end into your preamplifier or...

Страница 11: ...erview John Curl s phono preamp design are legendary His skills for amplifying extremely low level signals gives you the listener the best possible opportunity to experience the full emotional content...

Страница 12: ...he most frequent reason for distortion is using an MM cartridge with the JC 3 Jr Gain switch set to 50 dB or 60 dB try 40 dB The second most frequent reason is using a high output MC cartridge with th...

Страница 13: ...d Dealer 3 You are not the original owner The Parasound warranty is not transferable 4 Unit s serial number was removed modified or defaced 5 Unit shows evidence of abuse and or misuse 6 Unit was modi...

Страница 14: ...ut shorted IHF A weighted 84dB input shorted unweighted Signal to Noise Ratio 60 dB Setting 94dB input shorted IHF A weighted 91dB input shorted unweighted Inter channel Crosstalk 80dB at 1kHz Input I...

Страница 15: ...15...

Страница 16: ...16 Parasound Products Inc 2250 McKinnon Ave San Francisco CA 94124 415 397 7100 Fax 415 397 0144 www parasound com...

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