NOTE: Detailed information on the PIKO SmartDecoder XP Sound is available as a PDF le on our
website, on the page of the respective item number. The le contains a full description of all functions
and operating possibilities for the SmartDecoder XP Sound.
Description
The state-of-the-art PIKO SmartDecoder XP Sound inside in this PIKO locomotive is a compact yet powerful multi-
protocol sound decoder with a PluX22 interface. It features high delity, 12 bit 8-channel sound with 2.5 watts of
output that ensures distortion-free sound at all levels. It complies with the current RCN standards in all areas. The
decoder can be used on DCC, mfx®, and Motorola® digital systems as well as traditional DC or AC analog layouts. It
automatically senses what operating mode is used on your layout and is RailCom®/RailCom Plus® compatible. The
PIKO SmartDecoder XP Sound features several programmable braking distance functions in addition to numerous
other programmable functions.
The PIKO SmartDecoder XP Sound is load-regulated and features auto-adaptive motor control that provides silky-
smooth control of both traditional DC motors and coreless motors of up to 1.2 Amps draw. The decoder will tolerate
a temporary current draw of up to 2 Amps. The motor speed table can be set using minimum, median, and maximum
motor speeds (simple curve), or by a user-programable 28-speed step extended curve. The decoder features two
directional lighting outputs and seven additional special function outputs that can be activated using function keys up
to F68 (DCC). The switching or half-speed mode provides slower motor speed for precise switching. Many sound
functions are user-controllable via function keys. The PIKO SmartDecoder XP works with the super-capacitor in this
locomotive to provide smooth operation in case of short-term track voltage loss.
Installing the PIKO SmartDecoder XP Sound into a non-sound loco
Remove the jumper plug from your model’s PluX22 interface. Insert the sound decoder into the interface socket. Take
care of proper direction, as indicated by the “missing” pin 11. Install the loudspeaker as illustrated in the assembly and
spare parts diagrams. Check for crossed wires and short circuits before and after reinstalling the shell. Place the model
on your programming track with programming mode activated on your DCC system. During programming or when reading
the model’s DCC address, a small amount of current will ow through the model, which does not affect the decoder; even
in the event of a short circuit.
Special function outputs A1 to A7
The decoder’s special function outputs A1 to A7 can only be activated if the desired functions (lights, etc.) are already
connected to the model’s PluX22 interface.
First-time use of the decoder
Enter address 3 on your digital control system. Depending on the data format used to address the sound decoder,
the locomotive runs in DCC mode with 28 speed steps or in Motorola® mode. When using a RailCom Plus®-enabled
system or with an mfx®-capable system, the decoder is detected automatically and can be operated immediately. If
the decoder is used on a conventional analog layout, it can be controlled with a DC or AC power pack. The decoder
will automatically detect the layout’s operating mode. Note: If the decoder has been operated on a DCC system
with RailCom Plus® technology, the address will have been changed from the default of 3 to a number above 1000.
NOTE: On DC operation, compared to analog (non-decoder) locos, a loco with a decoder installed will require much
higher track voltage before starting.
Function outputs in analog mode
The directional front and rear headlights (F0) and motor sounds (F8) are factory-programmed to be active on analog
DC operation. It is possible to program the decoder so that some light functions in the range of F0 - F12 (according
to factory defaults) can also be activated on analog operation. See the detailed decoder instructions for further info.
#56627 PIKO SmartDecoder XP Sound PluX22
for Diesel Loco KM ML 4000 H0
Multi-Protocol, ts mfx® included
56627-90-7003_2024
PIKO Spielwaren GmbH
Lutherstr. 30
| 96515 Sonneberg
GERMANY
PIKO America LLC | 4610 Alvarado Canyon
Rd., Suite 5 | San Diego CA 92120 USA
A short circuit in the motor, lighting, pick-up wiper, or wheelsets can destroy the
decoder as well as the electronics of the model!
CV Description Range Default
1 Locomotive address
DCC: 1 - 127
Motorola: 1 - 80
3
2 Minimum speed (the speed from 0 until the locomotive is running at speed step 1) 0 - 255 0
3 Acceleration delay 0 - 255 50
4 Braking delay 0 - 255 30
5 Maximum speed (must be greater than CV 2) 0 - 255 195
6 Median speed (must be greater than CV 2 and less than CV 5) 0 - 255 135
7 Firmware version (The processor can be updated) - differently
8 Manufacturer's ID Decoderreset CV8 = 8
-
162
12
Decoder operating mode
Bit 0=1 DC (analog operation; direct current) on
Bit 2=1 DCC data format on
Bit 4=1 AC (analog 3-rail operation; alternating current) on
Bit 5=1 Motorola® data format on
Bit 6=1 mfx® data format on
Default
1
4
16
32
64
0 - 117
117
17
18
Long locomotive address
17 = high Byte
18 = low Byte
1 - 10239
192 - 231
0 - 255
1000
195
232
27
Brake signal settings (automatic stop)
Bit 0 = 1 -> ABC (Automatic Brake Control) right rail positive
Bit 1 = 1 -> ABC left rail positive
Bit 4 = 1 -> DC; opposite direction of travel
Bit 5 = 1 -> DC; same direction of travel
Default
1
2
16
32
0 - 51
0
29
DCC standard conguration
Bit 0=0 Normal direction of travel
Bit 0=1 Opposite direction of travel
Bit 1=0 14 speed steps
Bit 1=1 28 speed steps
Bit 2=0 Digital mode only
Bit 2=1 Automatic analog/digital recognition
Bit 3=0 RailCom® turned off
Bit 3=1 RailCom® turned on
Bit 4=0 Speed steps over CV 2, 5, and 6
Bit 4=1 Use the characteristic curve from CV 67 - 94
Bit 5=0 Short address (CV1)
Bit 5=1 Long address (CV 17/18)
Default
0
1
0
2
0
4
0
8
0
16
0
32
0 - 63 14
30
Error codes for the motor, thermal overload, and function outputs:
1 = motor error, 2 = thermal overload error, 4 = function output error
0 - 7 0
See the detailed decoder instructions for a complete CV list
NOTE: This product is not a toy and is not intended for children under 14 years of age. Any liability for damage of any kind caused
by improper use or failure to observe these instructions is excluded.
Service:
www.piko-america.com
support@piko-america.com
619-280-2800
In the event of a problem with this decoder, return it to PIKO along with proof of purchase and a short description of the problem.
Warranty Statement
Each decoder module is fully tested before shipment. Nevertheless, should a malfunction occur within the 2-year warranty period,
we will repair the module free of charge on presentation of the proof of purchase. This warranty is voided if the unit has been
damaged by improper use. Please note that, according to the German Electromagnetic Compatibility Law (EMV-Gesetz), the
decoder module may only be used inside models bearing the CE mark.
Product subject to changes. All rights reserved. Printed 02/2024.
Copy and duplication of this text are permissible only with the permission of the publisher.
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