Sony MHC-RG490S/RG590S – power amplifier and power board schematic

Using ICs: STK412-240, STK403-130, STK 404-130

Schematics [Power amplifier] STK-403 130

STK 412-240 Power amplifier schematic

STK 404-130 Sub-Woofer schematic

Mains transformer board schematic

Philips 3605 GL IBP32 and LG LCD 08h3237-233 SMPS [Power board] schematic

Philips 3605 GL IBP32 – SMPS schematic

Used ICs: NCP1207, HS01G, 13MN60 [FETx2], F6N80, PS2771 [Opto-coupler], OZ9977, F5N50[FET]

 08h3237-233 SMPS schematic - LG LCD TV