Sanyo DS13310 Service Manual

Also see for DS13310, DS19310: Owner's manual

Contents

Sanyo DS13310 Service Manual Manual pdf 9 page image

— 9 —SERVICE HINTSPOWER FAILURE DETECTORThis set is equipped with a Power Failure Detector function included in the CPU which checks for an abnormal condition in thechassis power supplies, including the power supply derived from the Horizontal Output Transformer.If, while the power is on, a failure is caused by any of the following which results in a low voltage supply, the CPU will turn the set offin 1.5 seconds to prevent unnecessary damage:• Failure within the power supply circuits.• A short circuit in the load side from the supply.• Stoppage of the Horizontal Output Oscillator caused by the X-Radiation protection Hold-Down Circuit.If, while the power is off, the power is switched on and any of these failures remains uncorrected, the CPU will shut off the powerwithin 3 seconds.Check the following if the set is turned off by the power failure detector.1. Disconnect the AC power cord (120V AC line) for at least 10 seconds.2. Connect a DC Voltmeter to the following TEST POINTS.3. Press the power key and check for the proper voltage supplies.4. If any of these voltages is low, the power failure detector should turn the set off within 3 seconds.5. Check all circuits listed above.Note: This set is equipped with a Power Surge Protection feature included in the CPU. If power failure occurs three times within 15minutes, the CPU will automatically stop functioning to help prevent secondary damage. (TV will not turn on by pressing thepower key.) To reset the operating programs within the CPU, disconnect the AC power cord for at least 10 seconds.TJ5 9VTJ6 7.6VD429 Cathode 11.5VD802 Cathode 14.0V