Sherwood RD-7502 Operating Instructions Manual
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Sherwood RD-7502 Operating Instructions Manual

Sherwood a/v receiver operating instructions
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  • Page 1 RD-7502...

  • Page 2: Safety Instructions

    SAFETY INSTRUCTIONS 1. Read Instructions - All the safety and operating instructions should be read before the product is operated. 2. Retain instructions - The safety and operating instructions should be retained for future reference. 3. Heed Warnings - All warnings on the product and in the operating instructions should be adhered to.

  • Page 3: Introduction

    Introduction READ THIS BEFORE OPERATING YOUR UNIT : TO REDUCE THE RISK OF ELECTRIC SHOCK, DO CAUTION NOT REMOVE COVER (OR BACK). NO USER- SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, WARNING DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

  • Page 4: Table Of Contents

    CONTENTS SAFETY INSTRUCTIONS Introduction • READ THIS BEFORE OPERATING YOUR UNIT System Connections Front Panel Controls | 11 Remote Controls | 13 • REMOTE CONTROL OPERATION RANGE • LOADING BATTERIES | 14 Operations • LISTENING TO A PROGRAM SOURCE • SURROUND SOUND | 18 •...

  • Page 5: System Connections

    Disconnect the indoor antenna before replacing it with the outdoor one. AC INPUT 120V~60Hz 3.8A RD-7502 MODEL NO. AUDIO/ VIDEO RECEIVER MADE IN CHINA DESIGNED IN USA This device complies with Part 15 of the FCC rules.
  • Page 6 Note : • When Sherwood DVD player such as V-768, etc. is connected to the DIGI-LINK jack for system control, you should connect the DVD player to the " VIDEO 2" jacks of this unit. Because, if the PLAY button, etc. is pressed on the DVD player, the VIDEO 2 is automatically selected as an input source on this unit.
  • Page 7 Continued • There are three types of video jacks(COMPONENT, S-VIDEO, (composite) VIDEO) for connecting video components. Connect them to the corresponding video jacks according to their capability. • For your reference, the excellence in picture quality is as follows : "COMPONENT” > "S-VIDEO” > "(composite) VIDEO”. •...
  • Page 8 CONNECTING EXTERNAL INS • Use these jacks to connect the corresponding outputs of a DVD player or external decoder, etc. that has 6, 7 or 8 channel analog audio outputs • In case of 6 or 7 channel outputs, do not connect both of the SURROUND BACK L and R inputs or the SURROUND BACK R input of this unit.
  • Page 9 CONNECTING DIGI-LINK • Connect this jack to the DIGI LINK jack of the external Sherwood component that uses the DIGI LINK II or III remote control system. Note : • The DIGI LINK operation may not work on some Sherwood components.
  • Page 10 SWITCHED AC OUTLETS • These outlets are switched on(power-on mode) and off(standby mode) according to power control as follows(Maximum total capacity is 120 W (1 A)). Standby mode - Switched AC outlet off Power-on mode - Switched AC outlet on AC INPUT CORD •...

  • Page 11: Front Panel Controls

    FLUORESCENT DISPLAY 1. Input, frequency, volume level, operating information, etc. 2. Surround mode indicators 3. AUTO indicator 4. DIGITAL INPUT indicator 5. DIRECT indicator 6. Preset number, sleep time display RD-7502 AUDIO/VIDEO RECEIVER DISPLAY D/A MODE SETUP CH. LEVEL CONTROL...
  • Page 12 SETUP MIC JACK • To use Auto Setup function, connect the supplied microphone to the SETUP MIC jack.(For details, refer to "When selecting the AUTO SETUP" on page 41.) Notes: • Because the microphone for Auto Setup is designed for use with this receiver, do not use a microphone other than the one supplied with this receiver.

  • Page 13: Remote Controls

    Remote Controls NUMERIC (1~0) buttons DIGITAL/ANALOG MODE button DISPLAY button SOUND PARAMETER button TONE MODE button POWER ON STANDBY SLEEP DIMMER MUTE VOLUME P .SCAN D/A MODE CH.LEVEL DISPLAY SETUP ENTER SOUND EXT.IN PARAMETER TONE TAPE VIDEO 1 VIDEO 2 VIDEO 3 FM/AM/XM REMOTE CONTROL RC-110...

  • Page 14: Remote Control Operation Range

    REMOTE CONTROL OPERATION RANGE RD-7502 AUDIO/VIDEO RECEIVER DISPLAY D/A MODE SETUP CH. LEVEL CONTROL POWER ON STANDBY SLEEP DIMMER MUTE P .SCAN VOLUME D/A MODE CH.LEVEL DISPLAY SETUP ENTER SOUND PARAMETER EXT.IN TONE TAPE VIDEO 1 VIDEO 2 VIDEO 3...

  • Page 15: Operations

    Operations Notes: • Before operating this receiver, first set this unit as desired for optimum performance, doing the system setup procedures. (For details, refer to “System Setup” on page 34) LISTENING TO A PROGRAM SOURCE Before operation • Enter the standby mode. •...
  • Page 16 When CD, AUX, VIDEO 1~2 is selected as an input source Select the digital or analog input connected as desired. POWER ON D/A MODE D/A MODE P .SCAN DISPLAY • Each time this button is pressed, the corresponding input is selected as follows: →...
  • Page 17 Adjusting the tone (bass and treble) Enter the tone mode. DISPLAY SETUP ENTER TONE SOUND TONE PARAMETER EXT.IN TAPE VIDEO 1 VIDEO 2 VIDEO 3 FM/AM/XM REMOTE CONTROL RC-110 Press the CURSOR LEFT(◀)/RIGHT(▶) buttons to select the desired tone mode. MUTE VOLUME P .SCAN...

  • Page 18: Surround Sound

    SURROUND SOUND • This receiver incorporates a sophisticated Digital Signal Processor that allows you to create optimum sound quality and sound atmosphere in your personal Home Theater. Surround modes DTS Digital Surround DTS Digital Surround(also called simply DTS) is a multi- channel digital signal format which can handle higher data rates.
  • Page 19 Dolby Pro Logic IIx surround Dolby Pro Logic IIx decodes all stereo (2 channel ) and 5.1 channel sources and extends to 7.1channel surround playback. It delivers the most natural, full range and immersing 7.1 channel listening experience. Dolby Pro Logic IIx surround includes two modes as follows : •...

  • Page 20: Enjoying Surround Sound

    ENJOYING SURROUND SOUND Notes: • Before surround playback, first perform the speaker setup procedure, etc. on the SETUP menu for optimum performance. (For details, refer to "SETTING THE SPEAKER SETUP" on page 41.) • When the EXTERNAL IN is selected as an input source, the surround modes cannot be selected. Depending on how to select a surround mode, select the auto surround mode or the manual surround mode.
  • Page 21 Continued To cancel the surround mode for stereo operation DISPLAY ENTER SOUND TONE PARAMETER TAPE VIDEO 1 VIDEO 2 VIDEO 3 FM/AM/XM REMOTE CONTROL RC-110 2CH downmix mode • This mode allows the multi-channel signals encoded in DTS or Dolby Digital format to be mixed down into 2 front channels and to be reproduced through only two front speakers or through headphones.
  • Page 22 Continued Press the CURSOR UP(▲)/DOWN(▼) buttons to select the desired parameter. MUTE P .SCAN VOLUME D/A MODE CH.LEVEL DISPLAY SETUP ENTER SOUND EXT.IN TONE PARAMETER TAPE VIDEO 1 VIDEO 2 VIDEO 3 FM/AM/XM Press the CURSOR LEFT(◀)/RIGHT(▶) buttons to adjust the selected parameter as desired. MUTE VOLUME P .SCAN...
  • Page 23 Continued When selecting the “WIDE” (Dolby Virtual Speaker Wide) mode 2 SP : When using 2 front speakers only. 3 SP : When using 2 front and center speakers 4 SP : When using 2 front and 2 surround speakers. 5 SP : When using 2 front, center and 2 surround speakers.
  • Page 24 Adjusting the current channel level • After adjusting each channel level with test tone, adjust the channel levels either according to the program sources or to suit your tastes. • You can adjust the current channel levels as desired. These adjusted levels are just memorized into user’s memory ("CAL"), not into preset memory("REF 1", "REF 2").
  • Page 25 Memorizing the adjusted channel levels • You can memorize the adjusted channel levels into preset memory("REF 1", "REF 2") and recall the memorized whenever you want. After performing the steps 1~4 in "Adjusting the current channel level" procedure on page 24, press the (MEMORY/) ENTER button.

  • Page 26: Listening To Radio Broadcasts

    LISTENING TO RADIO BROADCASTS Auto tuning Select the desired band. DISPLAY SOUND TONE PARAMETER FM/AM/XM TAPE VIDEO 1 FM/AM/XM REMOTE CONTROL RC-110 • Each time this button is pressed, the band changes as follows: → FM ST → FM MONO → AM → XM ("ST"...
  • Page 27 Manual presetting • You can store up to 30 preferred stations in the memory. Tune in the desired station with auto or manual tuning. Press the (MEMORY/) ENTER button. MUTE P .SCAN VOLUME D/A MODE CH.LEVEL DISPLAY SETUP MEMO/ENTER ENTER SOUND PARAMETER EXT.IN...

  • Page 28: Listening To Xm Satellite Radio

    XM Satellite Radio (only for North America) • This receiver is the XM Ready® receiver. You can receive XM Satellite Radio® by connecting to the XM Mini-Tuner system (sold separately) and subscribing the XM service. About XM Satellite Radio for U.S. & Canadian products XM Satellite Radio offers an extraordinary variety of commercial-free music, plus the best in sports, news, talk and entertainment.
  • Page 29 Channel search • In the XM mode, press the TUNING UP (+)/DOWN (-) buttons or the SELECT UP(▶) / DOWN(◀) buttons repeatedly to select the desired channel. Direct search • Direct search is useful when you already know the channel number.
  • Page 30 Continued Select the desired channel in the selected category. TUNE Presetting channels • You can store up to 30 preferred channels in the memory. Select the desired channel with preforming channel search, direct search or category search. To memorize the channels, perform the steps 2 to 4 in "Manual presetting"...

  • Page 31: Recording

    RECORDING • The analog signals from the EXTERNAL INs as well as the digital signals from the coaxial or optical digital input can be heard but cannot be recorded. • When recording the analog signals from CD, AUX, VIDEO 1~2, be sure to select the analog input. (For details, refer to "When CD, AUX, VIDEO 1~2 is selected as an input source"...

  • Page 32: Digital Audio Recording With Md Recorder

    Continued Start recording on the VIDEO 1. DIGITAL AUDIO RECORDING WITH MD RECORDER • Only when the OPTICAL DIGITAL OUT of this receiver is connected to the OPTICAL DIGITAL IN of the MD recorder or CD recorder, you can enjoy high-quality sound of digital recording without converting the original signals. Refer to "CONNECTING VIDEO COMPONENTS", "CONNECTING AUDIO COMPONENTS"...

  • Page 33: Other Functions

    • While operating the sleep timer, " • When the sleep time is selected, all display panels of Sherwood components connected by the DIGI LINK III are dimly lit. • Each time this button is pressed, the brightness of all...

  • Page 34: System Setup

    System Setup • The setup menu is displayed on the fluorescent display and allows you to perform the setup procedures easily. In most situations, you will only need to set this once during the installation and layout of your home theater, and it rarely needs to be changed later.
  • Page 35 Setup menu flow • The setup menu flow is as follows: SYSTEM AMP : SB / SB + W SW : NORM / SW + TONE : OFF / ON C-EQ : OFF / ON RETURN INPUT VID 1 CFG VID 2 CFG VID 3 CFG CD CFG...
  • Page 36 Continued CH LEVEL MODE : CAL / REF 1 / REF 2 PARAMTR NIGHT : 0.0 / 0.0~1.0 PLII MSC DOLBY HP DOLBY VS RETURN EXIT • When “RETURN” is selected on a sub-menu, it will returns to the previous menu. Note: During setup menu operation, only the (POWER ON/)STANDBY button and the buttons required for system setup will function.

  • Page 37: Setting The System

    SETTING THE SYSTEM SYSTEM AMP : SB / SB + W SW : NORM / SW + TONE : OFF / ON C-EQ : OFF / ON RETURN • AMP (AMP ASSIGN) : To assign the power amplifier to the surround back left and right channels or the surround back and the subwoofer channels.
  • Page 38 Continued When selecting the TONE Note : When the digital signals from DTS, Dolby Digital program sources are input or the EXTERNAL IN is selected as an input source, you cannot adjust the tone and can listen to a program source without the tone effect. OFF : To listen to a program source without the tone effect.

  • Page 39: Setting The Input

    SETTING THE INPUT INPUT VID 1 CFG VID 2 CFG VID 3 CFG CD CFG TAPE CFG TUNE CFG RETURN • D.IN (DIGITAL IN) : To assign the connected DIGITAL INs to the desired input. • V.MODE (VIDEO MODE) : To output the video input signal to be output from the MONITOR OUTs other than the HDMI MONITOR OUT. •...
  • Page 40 Continued When selecting the VIDEO MODE • You can select the video input signal to be output from the MONITOR OUTs other than the HDMI MONITOR OUT. “AT” (AUTO) : When there are multiple video input signals, the video input signals are detected and the video input signal to be output from the MONITOR OUTs is selected automatically in the following order : component video, S- video, composite video.

  • Page 41: Setting The Speaker Setup

    SETTING THE SPEAKER SETUP • After you have installed this receiver and connected all the components, you should adjust the speaker settings for the optimum sound acoustics according to your environment and speaker layout. • Even when you change speakers, speaker positions, or the layout of your listening environment, you should adjust the speaker settings, too.
  • Page 42 Continued About the first listening position The first listening position is the point where a listener sits most often or the listening position when only one person is listening. Measurements start from this point. • If you want to personalize your speaker setup and channel level setup by making the settings manually, perform "When selecting the SPEAKER CONFIGURATION"...
  • Page 43 Continued Place the microphone on a flat level at the second main listening position. • For optimum effectiveness, place the microphone at the second main position within the listening area surrounded by the speakers. Press the CURSOR UP(▲)/DOWN(▼) buttons to select the "CONTINUE", then press the ENTER button. MUTE VOLUME P .SCAN...
  • Page 44 Continued When selecting the SPEAKER CONFIGURATION Press the CURSOR UP(▲)/DOWN(▼) buttons to select the “CONFIG”, then press the ENTER button. MUTE VOLUME P .SCAN D/A MODE CH.LEVEL DISPLAY SETUP ENTER SOUND EXT.IN TONE PARAMETER TAPE VIDEO 1 VIDEO 2 VIDEO 3 FM/AM/XM Press the CURSOR UP(▲)/DOWN(▼) buttons to select the desired speaker.
  • Page 45 Continued Repeat the above steps 2 and 3 until the speakers are all set to the desired mode. About the speaker size • Select “L” (Large) or “S” (Small) not according to the actual size of the speaker but according to the speaker's capacity for playing low frequency (bass sound below frequency set on the SPEAKER CROSSOVER menu) signals.
  • Page 46 Continued When selecting the SPEAKER CROSSOVER • When speakers are set to "S" (Small), be sure to set their crossover frequency correctly according to their frequency characteristics. Press the CURSOR UP(▲)/DOWN(▼) buttons to select the “X-OVER”, then press the ENTER button. MUTE P .SCAN VOLUME...
  • Page 47 Continued When selecting the ROOM EQ • The room EQ is a kind of room equalizer for your speakers. According to the acoustic characteristics of your room measured by the auto setup, the room EQ automatically adjusts the frequency response of speakers. •...

  • Page 48: Setting The Ch Level

    SETTING THE CH LEVEL CH LEVEL MODE : CAL / REF 1 / REF 2 Note : • Depending on the speaker settings("N" (None or No)), some channels cannot be selected. Adjusting the current channel level • You can adjust the current channel levels as desired. These adjusted levels are just memorized into user’s memory("CAL"), not into preset memory("REF 1", "REF 2").
  • Page 49 Continued Memorizing the adjusted channel levels • You can memorize the adjusted channel levels into preset memory("REF 1", "REF 2") and recall the memorized whenever you want. After performing the steps 1~3 in "Adjusting the current channel level" procedure on page 48, press the CURSOR UP(▲)/DOWN(▼) buttons, then press the ENTER button.

  • Page 50: Setting The Sound Parameter

    SETTING THE SOUND PARAMETER PARAMTR NIGHT : 0.0 / 0.0~1.0 PLII MSC DOLBY HP DOLBY VS RETURN • NIGHT (NIGHT MODE) : To adjust the dynamic range compression that makes faint sound easier to hear at low volume levels. • PLII MSC (DOLBY PLII MUSIC) : To adjust the various surround parameters for optimum surround effect. •...
  • Page 51 Continued When selecting the DOLBY PLII MUSIC • You can adjust the various surround parameters for optimum surround effect. Note: The parameter settings are valid only when listening in either Dolby Pro Logic II Music mode or the Dolby Pro Logic IIx Music mode.
  • Page 52 Continued When selecting the DOLBY HEADPHONE • You can select the desired listening mode for each Dolby Headphone mode. Note: The listening mode setting is valid only when playing analog stereo, PCM 2 channel or Dolby Digital 2 channel source in a Dolby Headphone mode.
  • Page 53 Continued When selecting the DOLBY VIRTUAL SPEAKER • You can select the speaker layout to be used actually for each Dolby Virtual Speaker mode. Note : The speaker layout settings are valid only when listening in a Dolby Virtual Speaker mode. Press the CURSOR UP(▲)/DOWN(▼) buttons to select the “DOLBY VS”, then press the ENTER button.

  • Page 54: Troubleshooting Guide

    Remote control unit does not • Batteries are not loaded or exhausted. operate. • The remote sensor is obstructed. Other Sherwood components do • DIGI LINK connections are not made properly. not react to remote control commands. POSSIBLE CAUSE •...

  • Page 55: Specifications

    Specifications AMPLIFIER SECTION • Power output, stereo mode, 6 Ω, THD 0.2 %, 40 Hz~20 kHz • Total harmonic distortion, 6 Ω, 95 W, 1 kHz • Intermodulation distortion 60 Hz : 7 kHz= 4 : 1 SMPTE, 6 Ω, 95 W •...
  • Page 56 RD-7502 5707-21128-052-0S...

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