Thứ Sáu, 16 tháng 9, 2016
Thứ Tư, 14 tháng 9, 2016
Thứ Ba, 13 tháng 9, 2016
Thứ Hai, 12 tháng 9, 2016
Color TV circuit diagram – CRT type – Using ICs TDA9850 VIF – PT11400 – TDA9570H Syscon Chroma Jungle – BR24C08-F Syscon Memory
CRT type color TV Circuit diagram - Used ICs: TDA9850 VIF – PT11400 – TDA9570H Syscon Chroma Jungle – BR24C08-F Syscon Memory - UC3842B SMPS control – 2SK2545 SMPS switching output FET - TDA1013B Audio output – HEF4052 Input selector – TDA9309 Vertical scan output – BU506DX Horizontal scan output – 1355218599 Fly-back Transformer – 1353002400 Line Drive Transformer – PT11400 Remote control IC – 5V SCL-SDA type tuner
TDA 9570 H/N3/AI/1627
Circuit Diagram [Schematic -Full] (Click on the schematic to zoom in)
Thứ Sáu, 9 tháng 9, 2016
Thứ Sáu, 2 tháng 9, 2016
Sharp LC-15SH1U - Sharp LC-15AV1U – SMPS – Back-light inverter and LCD main circuit diagram
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F601) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
SMPS schematic
Back-light inverter
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