MAXON SM-2000 MOBILE
TROUBLE SHOOTING CHART
TROUBLE SHOOTING CHART (SM-2000)
Status Indications & Audible Tones
STATUS | DESCRIPTION | LED COLOR | AUDIBLE TONE | |
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| Power on ready | N/A | Melody | |
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| Busy | Yellow | N/A | |
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| Correct Tone | Green | N/A | |
NORMAL |
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Transmit | Red | N/A | ||
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| Scan | Green, Flashing | N/A | |
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| Busy Lock | Yellow, Flashing | Single Tone | |
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| Time Out Timer | N/A | Single Tone | |
WARNING |
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Battery Low | Red, Flashing | Four Tone, Repeated | ||
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| EEPROM Error | Red, Flashing | Single Tone Repeated | |
ERROR | PLL Error | Red, Flashing | Double Tone Repeated | |
| Filtering Error | Red, Flashing | Three Tone Repeated | |
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Unit Does Not Program
1.Defective Programming Lead
2.Wrong Programming Mode
3.Defective MIC Connector
4.Defective IC412
Unit Does Not Work
1.Open DC fuse in Power Cable
2.Defective Volume Switch
3.Defective Regulator IC107, 105, 402
4.Broken DC Cable
No Output from Speaker
1.Defective internal speaker and external jack
2.Defective IC108
3.Defective VR801
Squelch Does Not Work
1.Wrong alignment of squelch resistor RV103
2.Defective IC109
3.Defective CPU IC409
No Sub Audio Decode
CTCSS/DCS
1.Wrong Programming
2.Defective Switch Filter IC406
3.Defective CPU IC409
December 98
