Sound Upgrade H10-44 in HO

Hello All,

In John Gray’s thread, “dcc conversion”

One of my responses was I would be upgrading a Digitrax DH126 series, non-sound decoder, equipped locomotive to their new SDXH167D sound decoder, and I would share my experience.

I am happy to report that it was successful!!!

The subject:

•Walthers HO Proto 2000 H10-44 (920-47794) “w/out Sound & DCC” (OEM). I purchased this unit used on an auction site with a blown Digitrax DZ123 (???) decoder.

The goal:

•Use the upgraded, hard-wired, Digitrax 9-pin- -non-sound- -wiring harness to “Plug 'N Play” the SDXH167D sound decoder.

On the auction website, this locomotive was listed as “DCC Installed.”

My research told me this was an after-market installation.

It was at a great price, right livery and I “needed” one.

Upon inspection- -it was sold “As Is”- -the little DZ123 had given up its “Magic Smoke!”

The good news was the rest of the electronics were good.

Upgrading to a 126 series decoder required hardwiring a DHWH 9-pin to wires harness.

The SDXH167D sound decoder uses this same interface on the “non-speaker” side.

The H10-44 ran great with the DH126 series decoder.

I simply unplugged the DH126 series decoder from the 9-pin interface, plugged in the SDXH167D sound decoder, and tested it with address #3

Lights, Sounds, ACTION!

SUCCESS!!!

When I removed the Original Equipment Manufacturer’s (OEM) Printed Circuit Boards (P

Glad to hear you had success. Did you happen to grab any pictures while you went?