Sanyo LED-24XR113D Service Manual

Contents

Adjustment Instructions1 Safety Instructions1.1 Power supply must be cut off when replacing or welding any component or inserting / pulling outconnective lines;1.2 Anti-electrostatic measures must be carried out during the whole producing processes!a) Do not touch IC by hands at will;b) Use anti-electrostatic iron;c) Welder must wear anti-electrostatic glove;1.3 Replacing any component with special safety requirement must refer to component list withoutchanging its specification and model at will.2 Adjustment EquipmentsMultimeter or osciillographVG-849CA-210USBDVD (included HDMI 1.4) or equipments with the same functions3 Adjustment Processes3.1 Power voltage testAccording to the wiring diagram specified by “Product Specification”, connect power boardassembly, data processing assembly, IR/Key board assembly, backlight board assembly correctly,supply with power, press button to power on the TV set.Test voltage of socket X601 each pin on the main board. Voltage value and range are listed asTable 1(a) for LCD size ≥26”; voltage value and range are listed as Table 1(b) for non-3D LCD &LED size ≤24”; voltage value and range are listed as Table 1(c) for LED size ≥26”; voltage valueand range are listed as Table 1(d) for 3D LED size ≤24”;Table 1(a) Voltage of X601 each pin （LCD size ≥26”）X601 Pin1,2 3,4 5,6 7,8 9 10 11 12 13Vol. 24 V±5% 0 12 V±5% 0 ≤5.2 V 5 V±5% 5 V±5% ≤5.2 V ≤5.2 VFunction AMP_PWR GND +12 V GND PWR_SW Main 5 V +5 V STB BL_PWM BL_ONTable 1(b) Voltage of X601 each pin （non-3D LCD & LED size ≤24”）X601 Pin1,2 3,4 5 6 7,8 9 10 11 12 13Vol. 12 V±5% 0 12 V±5% NC 0 ≤5.2 V 5 V±5% 5 V±5% ≤5 V ≤3.6 VFunction AMP_PWR GND +12 V NC GND PWR_SW Main 5 V +5 V STB BL_PWM BL_ONTable 1(c) Voltage of X601 each pin （LED size ≥26”）X601 Pin1 2 3 4 5 6,7 8,9 10,11 12，13Vol. ≤5.2 V ≤5.2 V 5V±5% 5V±5% ≤5.2 V 0 12 V±5% 0 24 V±5%