This document is an instruction manual for Kenwood CD players, specifically models 1050CD, 104CD, and 103CD. It provides comprehensive information on the device's functions, technical specifications, usage, and maintenance.
Function Description:
The Kenwood CD players are designed to play compact discs (CDs), including CDV (audio part only) and CD-G (audio part only). A key feature is the multi-disc changer mechanism, allowing for the loading of up to five discs. This mechanism enables disc changes even during playback, enhancing user convenience.
The units offer various playback modes:
- Programmed Play (PGM mode): Users can program desired tracks in a specific order, with a maximum of 32 selections. This mode also includes an "Auto-Space" function that inserts several seconds of space between programmed tracks, useful for recording to cassette tapes.
- Repeated Play: Tracks can be played repeatedly, either for a single disc or all tracks across all loaded discs. Programmed tracks can also be repeated.
- Random Play: The device can select and play tracks randomly from all loaded discs.
- Editing (EDIT): This function is particularly useful for recording CD contents onto cassette tapes.
- Normal EDIT: Edits and records tracks from a single disc, optimizing track order to fit tape sides A and B without interruption. Users can input the tape recording time (e.g., 46, 54, 60, 90 minutes) and adjust the interval length in one-minute units.
- MULTI EDIT: Allows editing and recording of tracks from several CDs onto a single tape. It confirms remaining time on tape sides A and B during the process.
The CD players also support Timer Operation when connected to a commercially available audio timer, allowing playback to start at a desired time.
System Control Operations:
When connected to other Kenwood audio components with system control terminals (XS8 or SL16 modes), the CD player offers enhanced functionality:
- Remote Control: The unit can be operated using a system remote supplied with a connected amplifier or receiver.
- Automatic Operation (except XR equipment): Automatically switches the input selector on the amplifier or receiver when playback starts from the CD player.
- Synchronized Recording (except XR equipment): Synchronizes recording with the start of CD playback, facilitating easy recording to cassette decks, including a "simple CCRS operation" for quality recordings.
Important Technical Specifications (General for 1050CD, 104CD, 103CD):
- System: Compact disk digital audio system.
- Laser: Semiconductor laser.
- D/A Conversion: 1 Bit.
- Oversampling: 8 fs (352.8 kHz).
- Power Consumption: 13 W.
- Dimensions (W x H x D): 440 mm (17-5/16") x 125 mm (4-15/16") x 397 mm (15-5/8").
- Weight (Net): 5.0 kg (11.0 lb).
Audio Specifications (Differences between models):
- Frequency Response: 4 Hz ~ 20 kHz, ±0.5 dB (all models).
- Signal to Noise Ratio:
- 1050CD: More than 100 dB.
- 104CD/103CD: More than 95 dB.
- Dynamic Range:
- 1050CD: More than 95 dB.
- 104CD/103CD: More than 95 dB.
- Total Harmonic Distortion + Noise:
- 1050CD: Less than 0.004% (at 1kHz).
- 104CD/103CD: Less than 0.008% (at 1kHz).
- Wow & Flutter: Unmeasurable limit (all models).
- Output Level/Impedance:
- 1050CD: Variable (max.) 2.0 V/0.8 kΩ.
- 104CD: Variable (max.) 2.0 V/0.8 kΩ.
- 103CD: Fixed 2.0 V/0.8 kΩ.
- Headphone Output (max.): 20 mW (32 Ω) (1050CD and 104CD only).
Usage Features:
- Controls and Indicators: Detailed descriptions of front panel controls (POWER, P.MODE, CHECK, CLEAR, Search, Skip, Disc selector, DISC SKIP, Open/Close, RANDOM, REPEAT, TIME DISP., EDIT, Stop, PHONES, Play/Pause) and their corresponding indicators (EDIT, RANDOM, Program mode, Play, Pause, REPEAT, P.C., ALL, Music calendar, Disc No., TRACK NO., Time counter, Program No.).
- Remote Control Unit (RC-P0504): Available for 1050CD and 104CD models, offering comprehensive control over playback, programming, and editing functions. Includes numeric keys for direct track selection and output level adjustment keys.
- Loading/Unloading Discs: Clear instructions on how to power on, open the disc tray, place discs (label side up, up to five discs), and close the tray. Emphasizes using the DISC SKIP key to rotate the tray for multiple disc insertion.
- Changing Discs: Instructions for changing discs during playback (discs 1, 3, 4 can be changed directly; discs 2, 5 require DISC SKIP key) and when the unit is stopped.
- Listening from the First Track: Simple steps to ensure PGM indicator is off, select a disc, and start playback.
- Listening from the Desired Track: Steps to ensure PGM indicator is off, select a disc, and then select the desired track number using skip keys or numeric keys.
- Listening through Headphones (1050CD and 104CD only): Instructions for inserting headphones and adjusting volume using the OUTPUT level keys on the remote control.
- D.R.I.V.E. (Dynamic Resolution Intensive Vector Enhancement) IC (1050CD only): This integrated circuit improves distortion at a microscopic level, providing smoother CD playback.
Maintenance Features:
- Unpacking: Advices careful unpacking, checking for shipping damage, and retaining original packaging for future transport.
- Disc Handling Precautions: Instructions on how to hold discs (avoid touching playing surface), not to attach paper/tape, and to clean sticky residue with alcohol.
- Caution on Disc Used: Warnings against using cracked, warped, or repaired discs, and against using commercial cleaning discs.
- Discs Which Can Be Played: Specifies compatible disc types (CD, CDV audio, CD-G audio).
- Cleaning: Instructions for cleaning the cabinet (dry cloth, no volatile solvents) and discs (soft cotton cloth, radial motion). Warnings against contact cleaners for internal mechanisms.
- Note Related to Transportation and Movement: Steps to prepare the unit for transport (power ON, open/close tray, power OFF).
- Beware of Condensation: Explains condensation and how to dry the unit if it occurs (power ON for several hours). Lists conditions where condensation is likely.
- In Case of Difficulty (Troubleshooting): A table listing common symptoms (no power, disc not playing, no sound, music interrupted, disc plays automatically on power ON), their possible causes, and remedies. Includes instructions for resetting the microcomputer if operation is erroneous.
Safety Precautions:
- Laser Product Safety: The unit is a Class 1 laser product, meaning it uses laser beams of a weaker class with no danger of hazardous radiation outside the unit.
- AC Voltage Selection: Instructions for selecting the correct AC voltage (110-120V or 220-240V) using a switch on the rear panel, warning against damage from improper setting.
- Factory Fitted Moulded Mains Plug (for UK): Details on fuse replacement (13-Amp ASTA-approved BS1362), refitting the fuse cover, and precautions if the plug is cut off.
- WARNING: To prevent fire or electric shock, do not expose the appliance to rain or moisture.
- CAUTION: Risk of electric shock, do not open. Refers servicing to qualified personnel. Explains the meaning of lightning flash and exclamation point symbols.
- FCC WARNING (for U.S.A.): Information regarding potential radio frequency interference and measures to correct it.
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