OPERATING INSTRUCTIONS TREND SERIES
TLG Unit Voltage Checks
-9 pin connector located under “Do Not Remove” plate, upper LH Corner
Pin Satisfactory Voltage Range
Brown -3.8 to -4.2 volts
Red -3.8 to -4.2 volts
Orange +3.8 to +4.2 volts
Yellow -11.5 to -12.5 volts
Green +11.5 to +12.5 volts
Blue +3.8 to +4.2 volts
Grey 0 volts
White +4.75 to +5.25 volts
Miscellaneous Troubleshooting Specifications
HT-400 Sensor Ohm Readings
Green - Black 350 ohms
Red - White 350 ohms
All other color combinations 266 ohms
All color to Ground open
Shield to Ground open
M
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