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Well by now many of us have received our PE sets and overall I think the reviews are pretty positive.

In my set the lighting in the passenger cars was spotty at best in all 5 cars. The lights would flicker frequently and completely turn off at times. 

The track was not at fault. Lionels' method of wiring these cars is faulty. Instead of soldering the wires to the copper axle wipers they elected to GLUE the wires to the tabs with some sort of gooey stuff that fails with time.

I decided to convert my cars to LED strip lighting and add a means to keep the lights on even if dirty track is encountered.

Here's how I did it.

1. Here's a picture of the parts needed:

 

 

 

PARTS FOR LED CONVERSION

 

I used some double sided foam mounting tape, a length of LED strip lighting, some flexible wire (22 gauge or similar), a 2 conductor mini male/female plug, a capacitor, a voltage regulator and a rectifier to change the voltage to DC (that's what the LED strips use).

 The foam tape is used to make sure the LED strip stays stuck to the roof. The glue on the back of the strips can't be trusted by itself.

The LED strip can be cut at the copper tabs on it every 3 LED's. Cut it just long enough to fit on the flat part of the roof. Mine was five segments long for  a total of 15 lights. Keep the paper backing on the strip until later.

The mini plug lets you separate the shell from the chassis at a later date if needed for service issues.

The capacitor acts like a rechargeable battery sort-of. When power is applied to the track the capacitor charges up with DC power and then releases it when called on to do so by an interruption in track power like dirty track.

The voltage regulator keeps the power to the LED strip at a constant 9VDC. That lets them put out full brightness without getting hot at all. We don't want any warped shells do we?

The rectifier changes the track voltage which is 18 VAC to 18 VDC.

It is then stepped down by the regulator to 9 VDC.

 OK enough electrical background info. Let's get started again.

 Remove the center chassis cover: there is a tab on the end where the printing is on the chassis. It fits in a slot in the floor so lift the other end first.

 

CENTER COVER

 

3. Remove the chassis:

 

 

 

CHASSIS REMOVAL

 

Chassis is off...underside of roof shown:

 

 

CHASSIS OFF ROOF SHOWN

 

 

 

4. Detach wires from copper axle wipers and save and secure inside chassis if desired:

 

LOOSE WIRES ON CONTACT STRIPS

 

5. Using some flexible color coded wire solder new wires to tabs as shown:

 

 

NEW WIRES SOLDERED TO TABS

 

Make sure the trucks swing freely side to side. Make sure you solder the same color coded wire to the same tab on each truck i.e. right side of car= white striped wire...left side of car = plain colored wire!

 

6. Glue the rectifier to the car floor and solder the truck power wires to the AC leads (2 center leads) on the rectifier as shown.

It doesn't matter which lead gets which pair of color-coded wires because this is alternating current.

 

AC WIRES SOLDERED TO RECTIFIER

 

7. Glue the capacitor to the car floor and solder the negative lead (marked by a stripe on the side of the capacitor) to the negative DC output lead on the rectifier. Then solder the positive lead on the capacitor to the positive DC output lead on the rectifier.

Now add the voltage regulator. The flat metal part with the hole in it helps to dissipate heat. Glue this metal part to the car floor. I used hot glue. If you prefer you can drill a small hole in the floor and secure the part to the car floor with a small sheet metal screw through the provided hole in the regulator.

With the regulator on its back secured to the floor and tabs pointing towards you the tabs are as follows: 

A. Tab on left is 18VDC in (to be regulated)

B. Center tab is Negative  in and out to the light strip (IT'S JUST THE NEGATIVE SIDE OF THE CIRCUIT)

C. Tab on right is 9VDC out to the light strip (This is now regulated power)

AC [18VAC) TO DC [9VDC) PARTS WIRED UP

 

Here's a side view:

 

SIDE VIEW

 

 

 

8. Add the 2 pin male plug...RED WIRE POSITIVE...BLACK WIRE NEGATIVE:

 

ADD THE MALE PLUG

 

9. Add the foam tape to the car roof:

 

ADD THE FOAM TAPE

 

10. Solder the female half of the two pin plug to the LED strip. THE RED WIRE GOES TO THE POSITIVE SIDE AND THE BLACK WIRE GOES TO THE NEGATIVE SIDE. Do this on a block of wood away from the car shell. It only takes a little dot of solder to do this. Don't take too long soldering these on as too much heat might damage the strip.

Keep the soldering iron tip on the copper tabs and apply a small dot of solder to the copper tabs. Then tin the female plug wire leads and with a little heat from the tip solder them to the dots of solder on the copper tabs.

Practice a few times on some sacrificial 3 light segments to get the feel of how to do it. If I can do it anyone can!

SO...HOW DO WE DETERMINE WHICH SIDE OF THE STRIP IS POSITIVE?????

EASY...TAKE A 9 VOLT BATTERY AND WITH TWO WIRES TOUCH THE BATTERY LEADS TO THE COPPER TABS. WHEN THE STRIP LIGHTS UP MAKE A NOTE OF WHICH SIDE IS POSITIVE FROM THE MARKINGS ON THE BATTERY.

The strips will only light one way and you can't hurt them if you have the wires switched during testing.

Some LED light strips have the positive side marked with a little + sign. Mine did not so I did the battery test.

 

11.When you have the female plug soldered to the LED strip remove the paper release strips from the back of the LED strip and foam tape, center the led strip in the car roof and stick the two together:

 

 LED STRIP ATTACHED TO FOAM TAPE

 

12.Hook the male female plug together with the car roof laying next to the chassis. Apply some AC power to the car wheelsets. The LED strip should light up. If so SUCCESS!

If not.....you'll have to go back and check your work 

 

Let's assume everything works OK.

 

13. Reinstall the chassis to the shell reversing the steps you took at disassembly.

 

Here's some pictures showing the new LED lighting at work.

Room lights off, no power:

 

ROOM LIGHTS OFF...NO POWER

 

Now turn on the power:

 

ROOM LIGHTS OFF POWER ON

 

Here's a comparison of the LED vs. the factory supplied bulb...(Bulb car is on the right side):

 

LED LIGHTS VS. FACTORY BULB

 

The lighting from the LED strips is softer and uniform end to end in the car. The bulb light is concentrated in the center of the car.

The best part is that all the flickering of the light is eliminated due to the capacitor in the circuit.

 

That's how I did it. If you want to upgrade your cars to LED give it a try!

Mark

 

 

 

 

 

Attachments

Images (16)
  • PARTS FOR LED  CONVERSION
  • CENTER COVER
  • CHASSIS REMOVAL
  • CHASSIS OFF ROOF SHOWN
  • LOOSE WIRES ON CONTACT STRIPS
  • NEW WIRES SOLDERED TO TABS
  • AC WIRES SOLDERED TO RECTIFIER
  • AC (18VAC) TO DC (9VDC) PARTS WIRED UP
  • ADD THE MALE PLUG
  • ADD THE FOAM TAPE
  • SIDE VIEW
  • LED STRIP ATTACHED TO FOAM TAPE
  • LED STRIP ATTACHED TO FOAM TAPE
  • ROOM LIGHTS OFF...NO POWER
  • ROOM LIGHTS OFF POWER ON
  • LED LIGHTS VS. FACTORY BULB
Last edited by banjoflyer
Original Post

Replies sorted oldest to newest

Mark,

Brilliant work!  Very simple way to convert with only a few components.  As usual, you've come up with another helpful post! 

 

I especially like that you included the capacitors to control the flickering, but have you given any thought to including a potentiometer or resistors to vary the intensity of light output?

 

Thanks for sharing your work.

 

Mike A.

 

 

 

Last edited by Mikeaa

The 12V LED strips actually start to light around 8 volts, there are three LEDs in series with the resistor.

 

You would want the LM317T for the lights if you want to vary the intensity.  You can use it in either a variable voltage mode or a variable current mode.  I like the variable current mode, that's what I use for my lighting modules.  Here's a diagram of what's in my lighting module, you can wire this from components if you choose.  If you KNOW you'll never run DCS, you can omit the choke.  This circuit gives you about 5ma to 45ma of current.  I find at 45MA of current, the LED strips in an 18" passenger car are way too bright for my tastes, so this works out pretty well.

 

 

 

Passenger Car Lighting Module

Attachments

Images (1)
  • Passenger Car Lighting Module

Mark,

Thanks for your tutorial.

When my PE loco is returned repaired or replaced with a new one from Lionel customer service I plan on converting my 5 cars to led. You didn't mention the size leds you chose.

I'll be using 3528n SMD warm white (non waterproof) with led, led, r, led for each 3 leg segment along with gunrunnerjohn's constant current lighting regulators with built in pot to vary lighting intensity and use either #28 stranded or #30 solid wire to connect it all together.

I did do the roof taillight on my O gauge PE observation car using a red led modual supplied by Dan's Drumheads but figure the led in that module might be too large a size for the S gauge PE observation car. What size were you planning to use? Also, instead of removing the red jewel lens as I did with the O gauge could you either just use a pin vise to drill or file away the roof plastic that abuts that red jewel lens so light can then shine through that lens? If so, could an led then be placed against that red jewel taillight so it'll then light up that red plastic jewel making it glow? That way the red jeweled light needn't be removed.

Gunrunnerjohn,

Can I use your led cclr's in the PE S gauge passenger cars with the led strips I mentioned to Mark in the preceding post? I'm running the set with Lionel's more power wallwart, (I believe the 70 watt, 4 amp one rather than then lower wattage/amp wallwart that was included with the FlyerChief PE set.

The rectifier changes the track voltage which is 18 VAC to 18 VDC.

The alternating current voltage is typically measured as an RMS value, that is, using a root mean square that "averages" the voltage of positive and negative swings. A rectifier converts AC voltage to DC, but that is a combination of positive and negative peaks that ends being 1.414 times greater than the AC RMS value. That means that 18VAC ends up being nearly 25.5 volts DC out of the rectifier. That increase means that one must carefully choose a big enough resistor to restrict that current flowing to the LEDs at the higher voltage. 

Originally Posted by gunrunnerjohn:

The 12V LED strips actually start to light around 8 volts, there are three LEDs in series with the resistor.

 

You would want the LM317T for the lights if you want to vary the intensity.  You can use it in either a variable voltage mode or a variable current mode.  I like the variable current mode, that's what I use for my lighting modules.  Here's a diagram of what's in my lighting module, you can wire this from components if you choose.  If you KNOW you'll never run DCS, you can omit the choke.  This circuit gives you about 5ma to 45ma of current.  I find at 45MA of current, the LED strips in an 18" passenger car are way too bright for my tastes, so this works out pretty well.

 

 

 

Passenger Car Lighting Module

John,

Thanks for the lighting diagram.  I do plan to run DCS in the future if the MTH F3s ever arrive so I'm interested in what type of 22uf choke would be appropriate.  I've looked on ebay and have seen many types so not sure what to order.

 

Bob L. 

 

 

John,

I do not run DCS at the present time only Legacy/TMCC. I am curious though about needing the choke for DCS, what does this do? I ask because I can not say I will never have DCS especially if MTH decides to make locomotives in road names I desire to have. Why is the choke needed for DCS and not the Lionel system? I am not an electronics expert but have done these strip LEDs in most of my coaches.

Ray 

 
Originally Posted by gunrunnerjohn:

The 12V LED strips actually start to light around 8 volts, there are three LEDs in series with the resistor.

 

You would want the LM317T for the lights if you want to vary the intensity.  You can use it in either a variable voltage mode or a variable current mode.  I like the variable current mode, that's what I use for my lighting modules.  Here's a diagram of what's in my lighting module, you can wire this from components if you choose.  If you KNOW you'll never run DCS, you can omit the choke.  This circuit gives you about 5ma to 45ma of current.  I find at 45MA of current, the LED strips in an 18" passenger car are way too bright for my tastes, so this works out pretty well.

 

 

 

Passenger Car Lighting Module

 

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