No volume We have a volume problem with an RCA 5-disc changer, model RS2640. The radio and CD plays but on extremely low volume. Both the built in and remote buttons do not affect the volume. The speaker leads were removed and re-installed. Appreciate any assistance. Merry Christmas! Alex

Laser is either dirty, so a lense cleaning disc required. Or the cd transport is kaput. Uneconomical to repair if this is the case

Buy a CD cleaning kit, this will clean the plastic laser lens that is hard to get at, hopefully this will clean any dirt on the lens and bring it back to operational mode.

Radio Shack used to sell this model, and you can download the manual from their site here. I hope it helps you figure out what's going on.

get a new one problem solved

My son came over and helped me. All I was looking for was a user manual. This is something old and didn't need all this technical support. Plus I was not planning on paying for something that originally said it would be free.

KDC-M4527
CD Receiver with WMA/MP3 decoder Built-in

Audio Features
- 4 x 50 watt maximum output power by MOSFET Power IC
- 1 RCA preout, 2 Volt
- Separated tone control: Bass/Mid/Treble
- Source tone memory
- Balance/Fader/Loudness control
- System Q: Sound control with pre-programmed tone curves
- Auxiliary input with optional unit (CA-C1AX or KCA-S210A)
- Attenuator (-20dB) with smooth volume return

Tuner Features
- 24 presets: 18 FM, 6 MW/LW
- K3I clean reception Tuner
- Radio Data System (RDS) with Radio text
- Auto memory entry (AME)
- Up/Down seek tuning
- Local Seek
- FM Stereo/Mono selector
- Tuning mode : Auto1/Auto2/Manual
- DAB reception with optional unit KTC-9090DAB

CD Features
- CD-R/RW compatible
- 8 times over-sampling
- 1 bit D/A converter
- S/N ratio: 105 dB
- Dynamic range: 93 dB
- Channel separation: 85 dB
- MP3 decoder with ID-3 Tag display
- MP3 decoder MPEG-1/2 Audio layer-3
- WMA decoder: windows media audio
- CD-text
- Random/Repeat/Scan Play

Changer Features
- Dual changer control capability (CH1/CH2 & AUX)
- CD-Text with compatible units
- Disc Name Preset System with compatible units
- Disc & Track repeat
- Disc & Track scan
- Disc & Magazine random play

General Features
- Removable faceplate
- Protection case for faceplate
- Disabled System Indicator (DSI)
- Mono Colour LCD display
- 14 segments x 8 characters
- White LED display backlight
- Selectable key illumination (red or green)
- 24 hours clock
- Auto Dimmer
- 2 way telephone mute
- All off select (20/40/60 min.)
- Built-in fuse/coil
- ISO A/B connector
- Remote sensor for optional remote control unit
- OEM steeringwheel remote hardwired connection
thats the most i could get go here http://kenwoodusa.com/Contact/ and have them send u one hopw that helps.

RCA 5 DISK CD PLAYER AND RADIO CANT HERE MUSIC LIGHTS COME ON CD PLAYS BUT NO SOUND.

HELP

It sounds like maybe you have speaker wires touching somewhere. If they are touching it will blow fuses, especially if you turn the volume up to try to hear anything. DO NOT put bigger fuses in to replace the old ones, you will actually do more damage to your system because a higher volt fuse will allow a higher voltage to "spike" in your stereo and might just start frying internal parts.

Try a cd cleaning disc, the ones you can buy with the small cleaning brushes on them! It sounds like the laser is dirty.

Hi sounds like you have the audio out from the cd changer connected to the RCA/Phono out of the radio. double check that the output from the CD changer is going into the correct phono/rca connector regards Mark www.carradiospares.co.uk