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Tait T806 User Manual

Tait T806
38 pages
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Tait T806 Specifications

General IconGeneral
BrandTait
ModelT806
CategoryPower Supply
LanguageEnglish

Summary

SECTION 1 GENERAL INFORMATION

1.2 Specifications

Details the electrical and physical characteristics of the T806 power supply.

SECTION 2 CIRCUIT OPERATION

2.3 Current Limiting

Describes how the circuit reduces output voltage to maintain constant current when limit is exceeded.

2.4 Thermal Shutdown

Explains how thermal shutdown operates via transistor Q9 to protect switching elements.

2.8 Float Charge Control Circuitry

Describes IC2's function in disconnecting the battery if voltage drops too low.

SECTION 3 INTRODUCTION TO SERVICING

3.1 GENERAL

General information and precautions for servicing the T806 unit.

3.1.1 PRECAUTIONS

Covers lethal voltages, handling fragile components, ventilation, heat, and ESD.

3.2.3 DISASSEMBLY INSTRUCTIONS

Provides step-by-step instructions for disassembling the unit.

3.3 COMPONENT REPLACEMENT

Covers procedures for replacing components on the PCB.

3.3.1 LEADED COMPONENTS

Recommends procedures for removing and fitting components without damaging the PCB.

3.3.2 COMPONENT REMOVAL FROM PTH PCB's

Details two methods for removing components from Plated Through Hole (PTH) PCBs.

3.4 SEMICONDUCTOR REPLACEMENT

Outlines the process for replacing semiconductor devices, including torque specifications.

SECTION 4 INITIAL SET-UP & TESTING

4.2 TEST EQUIPMENT REQUIRED

Lists necessary test equipment: isolating transformer, variac, ammeter, multimeter, oscilloscope.

SECTION 5 FAULT FINDING

5.4 OUTPUT VOLTAGE WRONG OR NOT PRESENT FAULT FINDING CHART

A flowchart for diagnosing issues with the output voltage.

5.5 PULSE WIDTH MODULATION FAULT FINDING CHART

A flowchart for diagnosing faults related to the PWM control circuit.

5.6 NO FLOAT CHARGE OUTPUT FAULT FINDING CHART

A flowchart for diagnosing issues with the float charge output.

SECTION 6 INSTALLATION

6.2 RACK FRAME EARTHING

Details the importance of secure earthing connections for safety and noise suppression.

6.4 FLOAT CHARGING A BATTERY

Describes how to use the T806 to float charge a 12V battery.

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