User manual DALLEE ELECTRONICS STEAM CHUFF VERSION 3

[. . . ] IN LOCOMOTIVE STEAM CHUFF SOUND for various track power by Version 3. 8 volts) to maximize volume potential and battery life. When connecting the battery (DC) power leads be absolutely certain that wires connect to the proper DC input leads. If any connections are not done properly, especially the power connections, you will damage the sound system. This type of damage is not covered under any warranty. [. . . ] Drawn as a SPST. *Larger motors require a larger capacity choke. Right / Left only used for reference. Left Rail pickup ON / OFF switch *Larger motors require a larger capacity choke. Choke's available: Item 702 - 1. 5 ampere loads Item 703 - 5. 0 ampere loads #524 DPST switch. Switch shown in the OFF position. Drawn as a SPST. 1N4002 or equivalent diode (item #374) If using a standard battery instead rechargeable, do not connect/use a resistor!of Battery Holders #579 - single 9 volt (shown) #652 - holds 6 AA #654 - holds 2 AA #578 - 9 volt battery snap connector Battery power - must not exceed 24 volts DC. Use one 9 volt battery or a string of 6 AA or AAA batteries (24 volt DC maximum input). Life depends on volume setting and speaker impedance. Typical operation of most sound systems for one good 9 volt batteries is about 8 hours, AA or larger is well beyond 50 hours! Resistor needs to be calculated for battery type (you must know the charge currents of the batteries used) and maximum track voltage used. R = (Vtrk max - Vbatt nominal) / battery charge current This diagram allows for the use of rechargeable batteries. When track voltage exceeds battery voltage, the sound system will operate from track voltage and the battery will start to charge (when in the forward direction). If you need to charge the battery fully without the sound system on, place the locomotive on the track (with the motor not powered if present) and leave full track voltage on for 14 hours. The batteries will charge whenever the locomotive track power is set for the forward condition regardless of the sound system being on or off. They will not charge when the polarity on the track is set in reverse. When running in reverse, the sound system will only operate from the battery. A bridge rectifier could be used instead of a single diode alleviating this potential problem. ­+ 9V or 6-AA, or 6-AAA batteries For 12 - 14 volt maximum track voltage: 1 - Item #647 (8. 4v / 150mahr) rechargeable battery use 380 ohms (1/4 watt). 6 - Item #648 (1. 2v / 700mahr) rechargeable batteries in series, use 100 ohms (1/2 watt). For 18 volt maximum track voltage: 1 - Item #647 (8. 4v / 150mahr) rechargeable battery use 560 ohms (1/4 watt). 6 - Item #648 (1. 2v / 700mahr) rechargeable batteries in series, use 180 ohms (1 watt). 4 speaker DCC receiver installation using synchronization for chuff and function control for Cylinder Blow Down, Main Sounds ON / OFF Connect motor if present receiver motor leads (Orange / Gray is standard practice). If you are using a seperate receiver merely connect the motor leads to pins 2 (red) and 3 (gray) of J3. The sound system presents a load of 480 to 980 ohms (depends on speed set control setting). Make sure that your receiver is operating in the same step mode as the transmitter !! M Red Gray DCC track power input Vraw - do not connect!See note1. + Gray Red Red Note1: if you do not desire to use the input rectification provided on the sound board and have a Vraw available from your decoder you may elect to not use the DCC track power input to power the sound system. [. . . ] 2. . . . . . connect Red optical pickup wire to the Red wire from the SYNC input. 3 . . . . . . connect White optical pickup wire to the White wire from the SYNC input. see page 11 for picture of installation. WHITE GREEN RED For extra 2 and 3 pin ultra-miniature connectors, see item's 757 and 758. They are listed under Accessory Items / Connectors. Focus Distance 1/8" - 3/16" Optical pattern mounted on drive axle It is not necessary to use the black / white stripe pattern, anything that will come in and out of focus to the optical reader will also work! [. . . ]