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 19, 2021, 07:45:36 AM
Home Help Search Login Register
News: Check out the photo gallery link above or >click here< to see photos of recently announced products!
+  Bachmann Message Board
|-+  Discussion Boards
| |-+  HO
| | |-+  Removal of Circuit Board
« previous next »
Pages: 1 [2] Print
Author Topic: Removal of Circuit Board  (Read 3015 times)
rich1998

View Profile
« Reply #15 on: January 11, 2021, 01:59:34 PM »

Very good.
I have never found any issues with the circuit boards except when they get in the way of putting in a decoder and speaker like the 4-4-0 tender which is small.
I did add wipers so all the tender wheels have pick ups.

Rich
Logged
russ daley

View Profile
« Reply #16 on: February 24, 2021, 05:44:18 PM »

I read several post on circuit board removal and headlight bulb/LED replacements but remain a bit confused on whether I need to add the 1K resistor when removing the circuit board and direct wire to decoder. The Engine is a Spectrum 4-6-0, probably purchased 2004-2007 time frame. To be honest....I couldn't tell you if the front headlight is a bulb or LED. The rear backup light looks like a bulb. The parts list really doesn't define. I do know that when I direct wired the light to a DC transformer I get the "dim" clear light same as in DCC and not the assumed LED green light I see on other engines. I can live with the dim light but I want to avoid burning out the existing light whatever it may be.

So questions are....I know what a resistor does but what exactly will the 1K resistor do in this circuit? Why a 1K? Do I need a resistor in my hard wiring regardless if the light is a bulb or LED? 

thanks,     
Logged
rich1998

View Profile
« Reply #17 on: February 24, 2021, 11:17:31 PM »

Yes. The PC boards were labeled also in my steamers.

Rich
Logged
russ daley

View Profile
« Reply #18 on: February 25, 2021, 07:34:41 AM »

Thanks Rich....Install in Blue Common correct?
Logged
russ daley

View Profile
« Reply #19 on: February 25, 2021, 07:51:18 AM »

Never mind Rich...After some more research I think I got it down...thank you...next adventure is getting a double crossover to work...oh boy....
Logged
rich1998

View Profile
« Reply #20 on: February 25, 2021, 12:02:55 PM »

Well 1k for LED's are normal and 28mm for speakers are normal at least for me.
I have done reverse loops and crossovers but never a double.
Good luck. It has been many years.
Time's fun when you are having flies. I will be eighty in April.

Rich
Logged
russ daley

View Profile
« Reply #21 on: February 25, 2021, 03:20:08 PM »

Well Happy Coming Birthday.....I'm 66 and really don't get into the hobby until cold weather....had the best train season this year than I've had in many years...spent a great deal of time this year trying to get some engines to run, learning how...remembering...etc...

thanks for your contributions Rich....
Logged
Pages: 1 [2] Print 
« previous next »
Jump to:  
Powered by SMF | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!