Rockford FosgateメーカーPUNCH 4020 DSMの使用説明書/サービス説明書
ページ先へ移動 of 28
P UNCH 4020 DSM 4 -C HANNEL A MPLIFIER ® ® I NST ALLA TION & O PERA TION.
Dear Customer, Congratulations on your purchase of the world's finest brand of car audio amplifiers. At Rockford Fosgate we are committed to musical reproduction at its best, and we are pleased you chose our product.
G ETTING S T ARTED T ABLE OF C ONTENTS Introduction ...................................................................................... 1 Punch 4020 Amplifier Accessory Pack .............................................. 1 Rockford Fosgate Accessories .
– 1 – I NTRODUCTION The Punch 4020 is a 4-channel amplifier which offers 20 Watts per channel when driven into 4 Ohms. The amplifier utilizes a 2/ 4 input selector switch and XCard crossovers. When building a 4-channel amplifier, a major design challenge is to maintain sound quality in a limited space.
– 2 – R OCKFORD F OSGA TE A CCESSORIES The following accessories were designed to enhance the perfor- mance of the Punch 4020 amplifier. Energy Storage Capacitor (PCH-C1) The Punch 1 farad capacitor is used to provide extra current needed by amplifiers to reproduce musical transients.
– 3 – T ECHNICAL D ESIGN F EA TURES ◆ trans• ana The trans• ana ( TRANS conductance A dvanced N on-multiplying A mplifier) is a novel circuit that utilizes a short-loop complemen- tary topology and advanced Real Time Protection circuitry.
– 4 – to be obtained in amplifiers of desirable package size without resorting to “ amplifier-on-a-chip ” shortcuts. These advantages are shown below in Figure 1. THE RESULT: Less connections, improved reliability, shorter signal paths, superior signal-to-noise ratio and awesome sonic performance.
– 5 – ◆ XCard (Internal Crossover) The Punch 4020 amplifier utilizes internal active crossovers. These crossovers have many performance advantages such as using dis- crete components for exact frequency adjustments which are far superior to potentiometers.
P UNCH 4020 D ESIGN F EA TURES 1. Cast Aluminum Heatsink – The cast aluminum heatsink of the Punch amplifier dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs.
– 7 – 6. RCA Input Jacks – The industry standard RCA jack provides an easy connection for signal level input. They are gold-plated to resist the signal degradation caused by corrosion. 7. Signal Input Switch – This switch allows selection of 2 channel or 4 channel source unit feed.
I NST ALLA TION C ONSIDERA TIONS – 8 – This section focuses on some of the vehicle considerations for installing your new Punch amplifier. Checking your battery and present sound system, as well as pre-planning your system layout and best wiring routes will save installation time.
M OUNTING L OCA TION The mounting location and position of your amplifier will have a great effect on its ability to dissipate the heat generated under normal operation. The design of our cast aluminum heatsink serves to easily dissipate the heat generated over a wide range of operating condi- tions.
Amplifiers will put an increased load on the vehicle's battery and charging system. We recommend checking your alternator and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo system.
– 11 – 3. Prepare a length of cable to be used for the ground connection. Strip 5/8" of insulation from the end of the cable as described above and connect to the appropriate terminal of the ampli- fier. Prepare the chassis ground by scraping any paint from the metal surface and thoroughly clean the area of all dirt and grease.
– 12 – U SING THE XC ARD The crossover functions are controlled through the use of an XCard and can be set for high-pass, low-pass or full range operation.
4020 P OWER C ONNECTIONS – 13 – 4 5 10 POWER Connect to remote turn-on lead of source unit. Connect to chassis ground of vehicle* Connect to B+ of battery with a 30 amp fuse.
S AMPLE W IRING D IAGRAMS – 14 – 4-CHANNEL STEREO + – 2 Ω Minimum High Frequency + – 2 Ω Minimum Low Frequency + – Front Gain Front Rear Rear Gain (Bridged Mono) + L – + R – (Bridged Mono) Front Speakers Rear Speakers + – – L + – R + R L R L Front Rear • Signal input switch to 4 channel input .
– 15 – 4-CHANNEL – STEREO FRONT MONO REAR 4 Ω Minimum Low Frequency + – 2 Ω Minimum High Frequency + – Front Gain Front Rear Rear Gain (Bridged Mono) + L – + R – (Bridged Mono) Front Speakers Rear Speakers + – – L + – R + R L R L Front Rear *Note: XCard can be inserted in HP, LP, or Full Range.
– 16 – Rear XCard* Front XCard* • Signal input switch to 2 channel input . • Gain for Front and Rear operate independently. • Front is operating in mono. • Rear is operating in mono. XCard 1 XCard 2 LP LP *Note: XCard can be inserted in HP, LP, or Full Range.
– 17 – 4-CHANNEL – STEREO/MONO FRONT STEREO REAR + – 4 Ω Minimum Low Frequency + – 2 Ω Minimum High Frequency + – 2 Ω Minimum High Frequency – + Front Gain Front Rear Rear Gain (Br.
T ROUBLESHOOTING – 18 – Amplifier does not turn on. (Power LED is off) Symptom Diagnosis Remedy Voltage applied to the REM terminal of the amplifier is not between 10.5 and 15.5 volts or there is no voltage present. Voltage to the B+ termi- nal of the amplifier is not between 10.
Speaker Output Low or Distorted Readjust input gains of amplifier. Check system with known working source and repair or replace orignal source as needed. Check speaker polarity and correct as needed. Check signal input switch and XCard positons and repair or replace as neces- sary.
– 20 – Engine Noise on the Speaker Out- puts of the Ampli- fier Disconnect existing speak- ers and test with known working speakers. If engine noise is gone, check and repair wiring and installa- tion of speakers as neces- sary. Check connections, substi- tute with known working cables and repair or replace as necessary.
– 21 – D YNAMIC P OWER M EASUREMENTS About the Dynamic Power Measurements The Audio Graph PowerCube is a test instrument used to measure the output of an amplifier in accordance with IHF-202 industry stan- dards.
Information Cubed The data acquired in the testing procedure is then graphed in the form of a 3-dimensional cube. Hence the name PowerCube . The Phase Angle is expressed on the horizontal axis, the Output Voltage is presented on the vertical axis and the Impedance is displayed on the Z axis.
– 23 – S PECIFICA TIONS Continuous Power Rating (Competition Standard) - Measured at 13.8V RMS continuous power per channel , all channels 20 Watts driven into a 4 Ω load from 20-20,000Hz with less than 0.
W ARRANTY I NFORMA TION Rockford Fosgate warrants all electronics to the original consumer/purchaser to be free from defects in materials or workmanship for a period of three (3) years. We will cover parts and labor provided the product was purchased from an Authorized Rockford Fosgate Dealer.
Rockford Fosgate Rockford Corporation 546 South Rockford Drive Tempe, Arizona 85281 U.S.A. In U.S.A., (602) 967-3565 In Canada, call Korbon (905) 567-1929 In Europe, Fax (49) 4207-801250 In Japan, Fax.
デバイスRockford Fosgate PUNCH 4020 DSMの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Rockford Fosgate PUNCH 4020 DSMをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはRockford Fosgate PUNCH 4020 DSMの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Rockford Fosgate PUNCH 4020 DSMの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Rockford Fosgate PUNCH 4020 DSMで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Rockford Fosgate PUNCH 4020 DSMを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はRockford Fosgate PUNCH 4020 DSMの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Rockford Fosgate PUNCH 4020 DSMに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちRockford Fosgate PUNCH 4020 DSMデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
