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Installation Information 

MODEL: ST240 

Serial #:

 

 

PURCHASE DATE: 

 

 

INSTALLATION DATE: 

 

 

INSTALLER: 

 

 

DEALER: 

 

 

 

Model and serial number located on bottom of unit 

TABLE OF CONTENTS 

 

GENERAL DESCRIPTION 

 

INSTALLATION NOTES 

 

MOUNTING TIPS 

 

ELECTRICAL CONNECTIONS 

2-3 

 

Wiring Guide 

 

Wiring Diagram 

 

Mandatory Connections 

 

Optional Connections 

 

INSTALLER SELECTABLE OPTIONS 

4-5 

 

DIP Switch Settings (AUX & P/K Polarity) 

 

Optional Tone Programming 

4-5 

 

OPERATION 

6-7 

 

Power/PA 

 

Selector Switch 

 

Manual/Horn Button 

 

Radio Volume 

 

Microphone 

 

Auxiliary Input 

 

Park-Kill Cutout 

 

TROUBLESHOOTING 

 

Speaker Diagnostics 

 

Troubleshooting Chart 

 

SPECIFICATIONS 

 

SERVICE 

9-10 

 

Parts 

 

Warranty 

10 

Summary of Contents for Street Thunder ST240

Page 1: ...944 2557 www galls com NOTICE Due to continuous product improvements we must reserve the right to change any specifications and information contained in this manual at any time without notice Galls an...

Page 2: ...NECTIONS 2 3 Wiring Guide 2 Wiring Diagram 2 Mandatory Connections 3 Optional Connections 3 INSTALLER SELECTABLE OPTIONS 4 5 DIP Switch Settings AUX P K Polarity 4 Optional Tone Programming 4 5 OPERAT...

Page 3: ...ears of safe reliable operation Please read all instruction before installing the unit Failure to follow these instructions can cause serious damage to the unit or vehicle and may void warranties Qual...

Page 4: ...o the positive terminal of the battery should be fused at the battery for their rated load Review the charts below that indicate the recommended wire gauge based upon the length of the wire run and th...

Page 5: ...n in HF mode see page 6 Air Horn activation or Manual step up function see page 5 If you will be using any of these features cut the wire that connects the horn relay to the horn Connect the side from...

Page 6: ...lectable Options Optional Tone Programming The ST240 will produce 7 different tones sounds by activating its various functions Function Default Tone Thunder Step Up THUNDER MAN Two Tone THUNDER Thunde...

Page 7: ...y default the Wail tones indicated by the above will wind down when they are de activated If you prefer to have them immediately stop i e hard stop hold the Program Button for 3 seconds until the LED...

Page 8: ...ols the primary operating function of the siren THUNDER Ultra fast changing tone used for maximum attention YELP A rapidly changing tone used in congested areas WAIL A slower changing tone used on hig...

Page 9: ...way momentary switch for the Manual function and the Air Horn Radio Volume The radio repeat volume VOL control is recessed in the upper left hand corner of the front face This should be set when the...

Page 10: ...turned on Does microphone button release properly Is the PK jumper option properly configured Does the siren work when Park Kill input is disconnected Check for a short Check for an open No PA PA vol...

Page 11: ...Amps 13 6 VDC dual 100W speakers Standby Current Switch Off Backlighting Off Less than 4 mA Switch On Backlighting Off Less than 7 mA Switch Off Backlighting On Less than 40 mA Switch On Backlighting...

Page 12: ...aser During this warranty period the obligation of Galls is limited to repairing or replacing as Galls may elect any part or parts of such product which after examination by Galls is determined to be...

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