Sanyo DS31590 Service Manual

Also see for DS31590: Owner's manual

Contents

SCHEMATIC DIAGRAMS— 25 —SERVICE NOTES:1. When replacing parts on circuit boards, clamp the lead wires to terminals before soldering.2. When replacing high wattage resistors on circuit board, keep the resistor body 10 mm (3/8) from circuit board.3. Keep wires away from high voltage and high temperature components.PRODUCT SAFETY NOTICETHE COMPONENTS DESIGNATED BY A STAR () ON THIS SCHEMATIC DIAGRAM DESIGNATE COMPONENTSWHOSE VALUES ARE OF SPECIAL SIGNIFICANCE TO PRODUCT SAFETY. SHOULD ANY COMPONENTDESIGNATED BY A STAR NEED TO BE REPLACED, USE ONLY THE PART DESIGNATED IN THE PARTS LIST. DO NOTDEVIATE FROM THE RESISTANCE, WATTAGE AND VOLTAGE RATINGS SHOWN.X-RADIATION WARNING NOTETHIS TV CONTAINS CRITICAL PARTS TO PROTECT AGAINST X-RADIATION. NOMINAL 2ND ANODE VOLTAGE IS30.0KV AT ZERO BEAM CURRENT AT 120 VOLTS AC LINE, AND MUST NOT EXCEED 31.0KV UNDER ANYOPERATING CONDITION. SEE HIGH VOLTAGE CHECK ON PAGE 7.NOTES ON SCHEMATIC DIAGRAMS1. All resistance values in ohms K=1,000 M=1,000,000.2. Unless otherwise noted on schematic, all capacitor values less than 1 are expressed in μF (Micro Farad), andthe values more than 1 are in pF.3. Unless otherwise noted on schematic, voltage reading taken with VOM from point indicated to chassisground. Voltage reading taken using color-bar signal VHF channel 5, all controls at normal. Line voltage at 120volts. Some voltages may vary with signal strength.4. Waveforms were taken with color-bar signal and controls adjusted for normal picture. Waveforms markedwith an ✽ may vary with signal strength.5. The Symbol indicates a fusible resistor, which protects the circuit from possible short circuits.