MTHTrains Z-4000 Operations Instructions download pdf (Page 27)

MTH F-3 Operating Manual

TROUBLE SHOOTING PROTO-SOUND®

PROBLEMS

Although Proto-Sound® has been designed and engineered for ease of use,

some questions may arise during initial operation. The following table

should answer most questions. If you find that your problem can’t be

resolved with this manual, contact MTH ProtoSound Electronics (7020

Columbia Gateway Drive, Columbia, MD 21046, 410-381-2580) for

additional assistance.

HORN PROBLEMS REMEDY

The horn seems distorted at low voltages.

Your battery may be undercharged or dead. Try

recharging the battery as explained in the battery

sections.

When I press the whistle button, the bell comes on

instead.

You are trying to operate the horn in neutral. The horn

will only operate in Forward or Reverse unless you

program ProtoSounds through Feature 25. See the

instructions in the section entitled “Using RESET to

Program ProtoSounds”.

I can’t get the horn to blow when I press the whistle

button.

You may be pressing the whistle button too quickly.

Most older AC transformers contain a two--step whistle

button that releases a DC signal onto the track. It is

this DC signal that tells the horn to blow. However,

because the signal is weaker when the whistle button

is depressed fully, the ProtoSound circuit may not

recognize the signal. Try pressing the whistle button

slower, taking approximately 1 second to fully depress

the button.

BELL PROBLEMS REMEDY

When I press the whistle button to activate the bell, the

horn sounds.

You are trying to ring the bell in Forward or Reverse.

The bell only operates in Neutral unless you have

programmed ProtoSounds to recognize a separate bell

button.

When I press the whistle button to activate the bell, I

arm the coupler.

Reduce the voltage on the transformer before pressing

the whistle button to activate the bell. The bell will only

come on at 8 volts or less.

When I press the whistle button to activate the bell, the

bell only rings once.

You are trying to ring the bell in RESET instead of

neutral. Interrupt the power twice to enter Neutral, set

the voltage at 8 volts or less and press the whistle

button to activate the bell.

I can’t get the bell to ring when I press the whistle

button.

You may be pressing the whistle button too quickly.

See the 3rd remedy in the horn section above.

The bell won’t work with a separate bell button.

ProtoSounds must be programmed in order for a

separate bell button to function. Enter RESET function

number 20 (see the section entitled “Using RESET to

Program ProtoSounds”) and press the whistle button

until the bell sounds two dings. Simply turn the throttle

off and then on again to lock in the new setting.

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MTHTrains Z-4000 Operations Instructions Page 27

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