SMPS Power used with Changhong, Astar LTV-26HBG, Astar LTV-32ASB - FSP205-5E01
There
are voltage output in the power panel: +24V 6A,+12V 2A, +5V
2A, and +5VS1A. +24V output is provided for LCD screen; +12V output is provided
for power amplifier TDA8944J, and is also changed into +8V output by
AZ78L08ZTR-E1 to supply STV-8217 IC; +5V output is changed into 1.8V output and
3.3V output by DC/DC (such as AZ1117H-1.8TRE1 and AZ1117H-3.3TRE1) to satisfy
the needs ICs. +24V, +12V and +5V outputs will be cut off in standby state.
While +5VS output is the power supply of MCU, infrared receiver and EEPROM etc,
and will be cut off when the AC is turn off.
5V output will be divided into two ways: one way is changed into +3.3V
and +1.8V analogue power supplies through DC/DC converter for STV-8217 IC,
ANX9011LF IC etc and peripheral circuits; other way is changed into +3.3V and
+1.8V digital power supplies through DC/DC converter for SVP-CX32 IC etc and
peripheral circuits, and this way of 5V voltage will be cut off in standby
state, while the other way of 5V voltage supply power especially for MCU,
infrared receiver and EEPROM etc, and will still operating in standby state.
Circuit diagram and connector voltages
