M&r electronics how do I get my radio power to come on?i have the time display showing but the radio power does not come on..

Unless the face of the stereo says MONSOON there is no separate amplifier. On a Non-Monsoon Delco system all four amplifiers are built into the stereo, Left front, Right front, Left rear, and Right rear. Monsoon systems do have a separate amplifier which basically boosts the output of the four regular amps in the radio. I can't imagine all four of those amplifier output chips going out at the exact same time. I would pull the stereo and check if all plugs are seated properly. If those were all securely plugged in I would (myself) inspect the inside of the unit for the cause of failure. For example all four amp chips pull power from a common point and if one chip had a severe enough short in it, this may have caused the power feed trace on a circuit board to overload (too much current going through it) and created an open which killed power to all four of them. Any good electronics repair shop worth their salt should be able to repair it if you can locate one willing to try. It may only need a circuit board trace repair and one amp chip replaced.

this is for the base model

FUSE PANEL IDENTIFICATION (1983-90 LINCOLN TOWN CAR) The fuse panel is located in the instrument panel to the left of the steering column. To expose fuse panel, remove lower steering column finish panel.

Fuse & Circuit Breaker Identification

· 1 - 15 Amp Stoplights, Hazard Warning Lights, Speed Control Module, Trailer Tow Relays, Cornering Light Relay (1983-89)
· 2 - 8.25 Amp (Circuit Breaker) Windshield Wiper/Washer
· 3 - Blank
· 4 - 15 Amp Taillights, Side Marker, License Light, Parking & Coach Lights, Cluster Illumination, Trailer Tow Relay
· 5 - 15 Amp Turn Signal & Back-Up Lights, Trailer Tow Relay, Cornering Light Relays, Heated Rear Window Relay, Rear Defrost (1988-90), A/C Clutch & ATC Module (1990), Load Leveling (1990)
· 6 - 20 Amp Heated Rear Window Control, Speed Control Module & Clock Display, Illuminated Entry Module, Power Window & Police Accy Relays, Fuel Filler Door Release (1983-87), A/C Clutch & Cornering Lights (1983-89), Deck Lid Release (1987-90), Tripminder
· 7 - 10 Amp Daytime Running Light Resistor (1990)
· 8 - 15 Amp Dome LP-Clock, Key Warning Chimes & Electric Mirrors, Courtesy & Visor Mirror Lights, Autolight & Illuminated Entry Modules, Tripminder, Electronic Radio Memory, Trunk & Underhood Lights
· 9 - 15/30 Amp Heater Blower (15 Amp), AC/ATC Blower (30 Amp)
· 10 - Blank
· 11 - 20 Amp Radio & Power Antenna, CB Radio
· 12 - 20 Amp Door Cigarette Lighters, Power Seats & Door Locks (30 Amp), Tailgate Power Window (1983-89)
· 13 - 5 Amp Illuminated Outside Thermometer, Instrument Panel Lights
· 14 - 20/25 Amp (Circuit Breaker) Flash-To-Pass, Sun Roof, Power Windows
· 15 - 10 Amp Taillights, Parking, Side Marker/Coach, License Lights
· 16 - 20 Amp Horn & Front Cigarette Lighter
· 17 - 15 Amp Electronic Cluster, Message Center
· 18 - 10 Amp Warning Indicator Lights, Throttle Solenoid Positioner, Low Fuel Module & Autolight System, Dual Timer Buzzer & Electronic Chimes, Electronic Message Center

sounds to me like the radio lost its pass word code.
(or a power amp fuse is blown)
check fuses. , this time. more carefully.
some radios go to now amp mode, will tune but are in pass word mode.
if you drain the battery , this happens everytime.
oldest story in the world this.....

http://www.jeepforum.com/forum/f96/obtaining-anti-theft-radio-code-1350588/

if all power pins on the radio have 12vdc and if radio has external amp
there are like 4 or 5 radio options on new jeeps.
so if it has an external amp,it too has power pins, if they have 12vdc
then the fuse is not blown. (the fsm shows the wiring and fuses, read the FSM)
if the radio is still dead, it can be the radio code issue.
if the fuses are good , its Jeep dealer time.

check for blown fuse the amp may not be powering up

The fuse panel is located underneath the dash, to the left of the steering column, next to the emergency brake pedal. You need to remove the under-dash insulation to access some parts of the fuse panel.


If it doesn't have a diagram inside the box, here's one I found online: http://www.coolcats.net/tech/reference/images/fusepanel.jpg


1 15A Lt. Blue Stop Lamps, Hazard Warning Lamps, Speed Control, Cornering Lamp Relays 2 6A - CB - Windshield Wiper/Washer Pump 3

Spare - Not Used 4 15A Lt. Blue Taillamps, Parking Lamps, Side Marker Lamps, Instrument Cluster Illumination, License Lamps, A/C and Heater Illumination, Radio Illumination, Digital Clock Illumination, Autolamp Relay 5 15A Lt. Blue Turn Signal Lamps, Electronic Day/Night Mirror, Lighted Vanity Mirrors *, Backup Lamps, Illuminated Entry, Keyless Entry, Cornering Lamps 6 20A Yellow Rear Defrost Timer, Chime, Back-Up Lamps, Cornering Lamps, Rear Reading Lamps, Trunklid Release, Digital Clock Display, Illuminated Entry, Anti-Theft Module, Turbo Buzzer 7 15A Lt. Blue Fog Lamps (Turbo Only) 8 15A Lt. Blue Courtesy Lamps, Key Warning Buzzer, Illuminated Entry Module, Glove Box Lamp, Door Lock Relays, Radio Memory, Cluster Memory, Outside Mirrors, Tripminder Module, Analog Clock, Anti-Theft Relay 9 30A Lt. Green A/C Heater Blower Motor 10 20A - CB - Horn, Cigar Lighter, Fuel Filler Door, Flash-to-Pass, Speed Control 11 20A Yellow Radio, Tape Player, Premium Sound Amp, Power Antenna, Graphic Equalizer 12 20A - CB - Power Seats, Power Locks, Keyless Entry 13 5A Tan Instrument Cluster Illumination, Radio, Climate Control 14 20A - CB - Power Windows, Power Moonroof 15 10A Red Taillamps, Rear Side Markers, License Lamps, Electoluminescent Coach Lamps 16 4A Yellow Electronic ATC 17 15A Lt. Blue Electronic Cluster, Tripminder Display, Fuel Gauge (non-electronic cluster), A/C Clutch, Speed Control Module, Graphic Warning Display Module, Electronic Blower Speed Controller 18 10A Red Warning Indicator Lamps, Autolamp System, Throttle Position Sensor, Low Fuel Module, Dual Timer Chime, Tachometer, Washer Fluid Level Indicator

continually press/release the center of the tuning know until you have the preferred display you want and then press and hold the same button until the system beeps (1-2 seconds). It will now save your preferred default screen (clock in your case)

I have researched this through multiple forums and "DIY" sites, apparently the problem is excessive heat building up in the radio and loosening solder terminals on the power board for the radio display. After trying the recommended re-soldering fix a couple of times without success I believe that the best way to go is to purchase a repair kit (HWM0043 ) and swap out the power supply. Try SOT Electronics, Inc. 4090 Pike Lane Concord, CA 94520 800-442-4491 ext. 562

The on and off switch is bad , had same problem. Look up M&R electronics on web, will repair for about 100.00.

If it is working it will tell you if any doors, hatches are open, it tells you when your next service is due, If you are in 4WD or not. On the all time 4wd it tells you if you are in "Lo" . Mostly shows date and time. Check your grounds and power source fuses. It may need replaced. Also if something is wrong it makes a really annoying sound and it desplays a message. " Servire 4WD Switch" for exaple. I hope that helps . I just bought mine and just trying to fix it up for hunting. good luck Alex

When you turn on the radio, it will say "codE" on the display. You have the 4-digit code number for your radio, to enter the first digit, press the "1" button on the radio the number of times until the first digit matches. For example, if your code is "2156" then, press radio preset button 1 two 2 times, then press radio preset button 2 one time, then radio preset button 3 five 5 times and finally preset button 4 six times.
THEN if the display is correct (should show 2156 in this example), press TAPE button. You should hear a beep and the radio should be working. If you make a mistake and enter a wrong code, the display will show "Err". You have 3 tries to get this correct or the radio may be toast. These are the steps for the stock radio in my 1995 GSX and they've worked for me each time I've lost battery power. Good luck!