Will not tune any radio station, fm or am. everything else works fine. May be damage resulting from lightning, through the antena input.

Hi Joe, beyond a possible failure in the tuning stage of radio stations, do you have the corresponding antennas for each band (AM-FM) installed?
If you are away from FM stations, you should put an outdoor antenna
Comment, if you manage to solve
Regards Franco Dosil

Hola Joe, mas all? de una posible falla en la etapa de sintonia de estaciones de radio, tienes instaladas las antenas correspondientes a cada banda (AM-FM)?
Si estas alejado de las estaciones de FM, tendr?as que poner una antena exterior
Comenta, si logras resolver
Saludos Franco Dosil

http://www.bhphotovideo.com/lit_files/58561.pdf

this can be due to some blown capacitors.

Hi Jose, do you have connected the card with the AM and FM antennas on your Sony HCD EC55?
If this is the case and you cannot tune in, you have problems in the tuning module
Find a specialized Sony technical service
I hope you can solve the problem
Regards Franco Dosil

Hola Jose, tienes conectado la ficha con las antenas de AM y FM en tu Sony HCD EC55?
Si es asi y no puedes sintonizar nada, tienes problemas en el modulo de sintonia
Busca un servicio tecnico especializado Sony
Espero puedas resolver el problema
Saludos Franco Dosil

https://www.manualslib.com/manual/510640/Sony-Mhc-Ec55.html

1. Connect the FM antenna and the AM loopantenna at the back of the unit. Rotate the AM loop for better reception.
2. Press AM/FM.
3. Tune a station by pressing TUNER+/-repeatedly until the desired station is found.Alternatively, you can press and hold thesame buttons down for about one second toactivate the automatic search function. Inthis mode the unit will automatically tunefrequencies until it finds a station.
4. Repeat step 3 to tune to another radio station.
5. Press AM/FMto select between FM and AM.Storing Radio Stations

The unit can store up to 40 radio stations (30 preset stations for FM and 10 preset stations for AM) in its memory. You can enter every single radio station yourself or the unit can store all available radio stations automatically in ascending order

Automatic Preset Programming
1. Press AM/FM to enter the AM/FM mode.
2. Press and hold AM/FM for two seconds to start automatic preset programming.
3. Radio frequencies will be browsed and radiostations stored automatically. When all the available radio stations are stored or all 40(30 preset stations for FM and 10 preset stations for AM) memory locations are full,the auto preset programming function will stop.

Manual Preset
1. Tune to a radio station (see "Manual tuning"for details).
2. Press MEMORY. While the Program Preset number is still flashing, input your desired preset number using the numeric buttons or press CH+/-, then press MEMORY to store it.

Retrieving Preset Stations
1. Press AM/FM to enter the Tuner mode.
2. Press CH +/- to search up or down for thepreset stations or directly press the numeric buttons.

If a unit turns on it isn't a blown fuse. Does the tuner give you indications that it is or is not tuning a station? Change the FM Mode to Mono. You should at least be able to hear FM hiss if the tuner is alive.

The most common problem for no FM is the failure of component F1 IF transformer. One of the windings on the transformer opens, so you have either no input, or a very low level input to the FM mixer. You need to obtain a copy of the Satellit 700 service manual, and then find F1 in the schematics. You can check the windings with a simple ohm meter to verify if one of the windings is open or not.
If F1 is defective, and I have seen many 700's with this fault, you need to replace it with an adjustable 10.7 MHz IF Transformer in a 7mm can configuration.
I found a replacement 7 mm 10.7 MHz IF Transformer at Talon Electronics. Their part number for it is IND2134, and it costs a whopping $0.80. Here is a link:
http://www.talonix.com/shop/item.aspx?itemid=10217#.VDBYrWd0zuo

antena wire

you more than likely have a F.E.T.(Field Effect Transistor) front end tuner,very susceptable to lightning or static charge damage, chech your home owners insurance, you might be able to repair or replace the tuner but it wont be cheap

my radio no gord

Hi , you may buy a portable fm antena adaptable in car body .
and install connect to antena plug and then good fm signal.