ONLINE
STORE
"ASK THE BACH MAN"
FORUM
PARTS, SERVICE,
& INFORMATION
CATALOGS AND
BROCHURES

Welcome, Guest. Please login or register.
Did you miss your activation email?
April 27, 2018, 02:49:59 AM
Home Help Search Login Register
News: Please read the Forum Code of Conduct   >>Click Here <<
+  Bachmann Message Board
|-+  Discussion Boards
| |-+  Williams by Bachmann
| | |-+  Series Hook Up Problem---Williams Diesel
« previous next »
Pages: [1] Print
Author Topic: Series Hook Up Problem---Williams Diesel  (Read 1192 times)
GTBob

View Profile
« on: March 10, 2011, 03:29:27 PM »

Need some help here....Just converted my Williams GP-9 & FP-45 locos to series wiring.  FP-45 works great--no problems whatsoever.  The GP-9 works fine EXCEPT the horn/bell.  When activated you can barely hear the the horn/bell.  Before changing to series, the horn/bell was loud and clear.  I've checked all connections, etc., and cannot find anything wrong.  I also ran the GP-9 on the loop the FP-45 runs on---same problem, poor horn/bell sound.  The problem is connected to the GP-9, but I'm at a loss to find why...... Huh?

Anybody got any ideas what could be wrong?Huh?Huh? Shocked

Thanks,

Bob
Logged

"If a man does his best, what else is there!"--General George S. Patton Jr.
Joe Satnik


View Profile WWW
« Reply #1 on: March 10, 2011, 04:01:43 PM »

Dear Bob,

Unplug the sound board (2-wire) power cable from the reverser board. 

Use two solid wire telephone or cat5 strands stripped back 1/4" to connect track power to that cable.

Turn throttle up to 8 volts or so and try the horn and bell.

Let us know the results.

Sincerely,

Joe Satnik
Logged

If your loco is too heavy to lift, you'd better be able to ride in, on or behind it.
GTBob

View Profile
« Reply #2 on: March 10, 2011, 07:03:06 PM »

Hi Joe

Did as you suggested---same results--weak horn/bell. 

Under power, I then started moving (slightly) a large capacitor on the reverser board and the horn became loud as before.  On my GP-9 the horn board is layered (sandwiched) over the reverser board, they are only a thread away from touching each other.  I'm guessing when I was removing the white plastic motor plugs from the reverser board, (I used Member C & O's tutorial on connecting the yellow and blue wires) I accidentally knocked the reverser capacitor into a capacitor on the horn board.  The touching of the 2 parts must have caused a short(?).  Anyway, I tested the GP-9 for 20 minutes and all is good.

Joe, thanks  for your help.  FWIW--there is a very noticeable difference in series vs. parellel wiring.  Nice slow easy starting, much brighter lights, horn and bell activates faster and still plenty of high speed.

Bob
Logged

"If a man does his best, what else is there!"--General George S. Patton Jr.
Joe Satnik


View Profile WWW
« Reply #3 on: March 10, 2011, 09:02:56 PM »

Dear Bob,

Glad it all worked out.  

It could be that the two caps were touching, so in that case it would help to put a piece of electrical tape between the two caps.

Another possibility, the sound board cap could have an intermittent (cold) solder joint underneath it.  In that case, touching each of the cap's leads on the foil side of the circuit board with a hot soldering pencil would probably fix it.  Careful not to bridge (short) the two leads with solder.

FWIW - Go Series    

Hope this helps.

Sincerely,

Joe Satnik
« Last Edit: March 10, 2011, 09:04:31 PM by Joe Satnik » Logged

If your loco is too heavy to lift, you'd better be able to ride in, on or behind it.
Pages: [1] Print 
« previous next »
Jump to:  
Powered by SMF | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!